CN108201877A - A kind of graphene filtering material and its preparation method and application - Google Patents
A kind of graphene filtering material and its preparation method and application Download PDFInfo
- Publication number
- CN108201877A CN108201877A CN201810079056.9A CN201810079056A CN108201877A CN 108201877 A CN108201877 A CN 108201877A CN 201810079056 A CN201810079056 A CN 201810079056A CN 108201877 A CN108201877 A CN 108201877A
- Authority
- CN
- China
- Prior art keywords
- activated carbon
- graphene
- filtering material
- preparation
- hydrogen peroxide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/32—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
- B01J20/3202—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the carrier, support or substrate used for impregnation or coating
- B01J20/3204—Inorganic carriers, supports or substrates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/702—Hydrocarbons
- B01D2257/7022—Aliphatic hydrocarbons
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
The present invention relates to a kind of graphene filtering materials and its preparation method and application, and the preparation method includes the following steps：A, activated carbon activates：Activated carbon is immersed in the hydrogen peroxide solution of graphene-containing, then the activated carbon after dipping is dried, obtains activated carbon；B, activated carbon is immersed in composite solution, then by after dipping activated carbon dry to get.Graphene filtering material produced by the present invention has following advantageous effect：1st, graphene composite activated carbon adsorption capacity of the invention is strong, and stability is good, and the efficiency of going out of PARA FORMALDEHYDE PRILLS(91,95) is up to more than 90%.2nd, the simple and environmentally-friendly green of graphene composite activated carbon preparation process of the invention, will not generate pollution.
Description
Technical field
The present invention relates to air cleaning facility technical field, specifically, being related to a kind of graphene filtering material and its system
Preparation Method and purposes.
Background technology
Activated carbon is material more important in suction type, with absorption property is good, chemical stability is strong, high-temperature resistant water
Leaching, usage are flexible and changeable, and the advantages such as low-cost are widely used in various cleaning equipments, but it adsorbs harmful substance
Category it is narrow, common particulate matter can only be directed to, and have absorption be not thorough, material attenuation it is fast the defects of.
It is well known that " alkene border " air purifying process is a kind of one kind new one for combining grapheme material and filtering technique
For air purifying process.Graphene relies on its unique structure and physical and chemical performance in recent years, has become air treating neck
" the new trump " in domain, grapheme material can generate strong complex reaction between organic pollution, play good absorption effect
Fruit, moreover it is possible to drop bacterium and directly kill, fundamentally administer air environment.Grapheme material has been applied to remove formaldehyde etc. at present
Air pollutants, but current product is there is problems, for example, filtering material dust containing capacity is small, filtering material attenuation is fast,
The problems such as Organic Hazardous Compounds in elimination air are not thorough enough, especially the elimination efficiency of PARA FORMALDEHYDE PRILLS(91,95) is not still high, still can not
Meet the requirement that PARA FORMALDEHYDE PRILLS(91,95) is needed to carry out height removing in air cleaning facility.Therefore, a kind of stone of the high elimination efficiency of formaldehyde is developed
Black alkene composite activated carbon has highly important application value.
Invention content
It is poor for the effective adsorption effect of current normal activated carbon in the prior art, it is impossible to meet PARA FORMALDEHYDE PRILLS(91,95) in air purification and go
Except efficiency it is low the shortcomings that, provide a kind of novel graphene filtering material so that activated carbon after graphene is compound is imitated except formaldehyde
Rate performance significantly increases, and improves detergent power of the activated carbon to air.
The purpose of the present invention is what is be achieved through the following technical solutions：
The present invention provides a kind of preparation methods of graphene filtering material, include the following steps：
A, activated carbon activates：Activated carbon is immersed in the hydrogen peroxide solution of graphene-containing, then by the activity after dipping
Charcoal is dried, and obtains activated carbon；
B, activated carbon is immersed in composite solution, then by after dipping activated carbon dry to get.
Preferably, in step A, the mass ratio of the hydrogen peroxide solution of the activated carbon and graphene-containing is 1:5-1:15.More
It is preferred that 1:10.
Preferably, it is a concentration of 0.01%-0.5% of graphene, double in the hydrogen peroxide solution of the graphene-containing in step A
Oxygen water concentration is 1%-5%.
The graphene is selected from one or both of graphene oxide, non-graphene oxide.
Preferably, the activated carbon is in coaly activated carbon, cocoanut active charcoal, active fruit shell carbon, timber activated carbon
It is one or more kinds of.
Preferably, in step B, the mass ratio of the activated carbon and composite solution is 1:0.5-1：20, more preferable 1:
3。
Preferably, the composite solution be containing mass fraction be 0.1-1% potassium permanganate, 1-10% potassium hydroxide
Aqueous solution.
Preferably, in step A, the dip time is 0.5-1 hours；The drying temperature is 110-120 DEG C.
Preferably, in step B, the dip time is 0.5-1 hours；The drying temperature is 110-120 DEG C.
The present invention also provides graphene filtering material prepared by a kind of aforementioned method, the graphene filtering materials
In, the load capacity of graphene on the activated carbon be 0.01%-1%, more preferable 0.1%.
The present invention also provides a kind of application of graphene filtering material in air cleaning facility.
The principle that the method for the present invention prepares graphene filtering material is as follows：It is big using graphene specific surface, it is easy to adsorb small
Molecule, and reacted with the active group of graphene surface being capable of effectively decomposing formaldehyde.
Compared with prior art, the present invention has following advantageous effect：
1st, graphene composite activated carbon adsorption capacity of the invention is strong, and stability is good, and the efficiency of going out of PARA FORMALDEHYDE PRILLS(91,95) is up to
More than 90%.
2nd, the simple and environmentally-friendly green of graphene composite activated carbon preparation process of the invention, will not generate pollution.
Specific embodiment
With reference to specific embodiment, the present invention is described in detail.Following embodiment will be helpful to the technology of this field
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill to this field
For personnel, without departing from the inventive concept of the premise, various modifications and improvements can be made.These belong to the present invention
Protection domain.
Embodiment 1
A kind of graphene filtering material preparation method is present embodiments provided, specifically includes following steps：
(1) activated carbon is activated：The mixed solution of graphene and hydrogen peroxide is configured to hydrogen peroxide concentration 1%, graphene
Concentration 0.01%, activated carbon is with hydrogen peroxide solution according to 1：5 mass ratio, activated carbon is immersed in hydrogen peroxide solution, stirring
Uniformly, it impregnates 0.5-1 hours at room temperature, the activated carbon of dipping is placed in baking oven, temperature is to be dried at 110-120 DEG C, is obtained
To activated carbon；
(2) activated carbon dipping liquor potassic permanganate：The active charcoal quality of gained is handled according to step (1)
(mass ratio of activated carbon and composite solution is 1 to 100% configuration immersion solvent:1), immersion solvent is according to mass fraction 1%
Potassium permanganate, 1% potassium hydroxide, 98% aqueous solution is configured, then gained activated carbon will be handled through step (1)
It is added in immersion solvent, impregnates 0.5-1 hours at room temperature；
(3) activated carbon for impregnating immersion solvent is placed in baking oven at 110-120 DEG C and dried, obtained graphene and answer
Close activated carbon.
Embodiment 2
A kind of graphene filtering material preparation method is present embodiments provided, specifically includes following steps：
(1) activated carbon is activated：The mixed solution of graphene and hydrogen peroxide is configured to hydrogen peroxide concentration 2%, graphene
Concentration 0.1%, activated carbon is with hydrogen peroxide solution according to 1：15 mass ratio, activated carbon is immersed in hydrogen peroxide solution, stirring
Uniformly, it impregnates 0.5-1 hours at room temperature, the activated carbon of dipping is placed in baking oven, temperature is to be dried at 110-120 DEG C, is obtained
To activated carbon；
(2) activated carbon dipping liquor potassic permanganate：The active charcoal quality of gained is handled according to step (1)
(mass ratio of activated carbon and composite solution is 1 to 50% configuration immersion solvent:0.5), immersion solvent is according to mass fraction
0.6% potassium permanganate, 3% potassium hydroxide, 96.4% aqueous solution are configured, then will be handled gained through step (1) and be lived
Change activated carbon to be added in immersion solvent, impregnate 0.5-1 hours at room temperature；
(3) activated carbon for impregnating immersion solvent is placed in baking oven at 110-120 DEG C and dried, obtained graphene and answer
Close activated carbon.
Embodiment 3
A kind of graphene filtering material preparation method is present embodiments provided, specifically includes following steps：
(1) activated carbon is activated：The mixed solution of graphene and hydrogen peroxide is configured to hydrogen peroxide concentration 5%, graphene
Concentration 0.2%, activated carbon is with hydrogen peroxide solution according to 1：10 mass ratio, activated carbon is immersed in hydrogen peroxide solution, stirring
Uniformly, it impregnates 0.5-1 hours at room temperature, the activated carbon of dipping is placed in baking oven, temperature is to be dried at 110-120 DEG C, is obtained
To activated carbon；
(2) activated carbon dipping liquor potassic permanganate：The active charcoal quality of gained is handled according to step (1)
(mass ratio of activated carbon and composite solution is 1 to 300% configuration immersion solvent:3), immersion solvent is according to mass fraction
0.5% potassium permanganate, 5% potassium hydroxide, 94.5% aqueous solution are configured, then will be handled gained through step (1) and be lived
Change activated carbon to be added in immersion solvent, impregnate 0.5-1 hours at room temperature；
(3) activated carbon for impregnating immersion solvent is placed in baking oven at 110-120 DEG C and dried, obtained graphene and answer
Close activated carbon.
Embodiment 4
A kind of graphene filtering material preparation method is present embodiments provided, specifically includes following steps：
(1) activated carbon is activated：The mixed solution of graphene and hydrogen peroxide is configured to hydrogen peroxide concentration 3%, graphene
Concentration 0.5%, activated carbon is with hydrogen peroxide solution according to 1：10 mass ratio, activated carbon is immersed in hydrogen peroxide solution, stirring
Uniformly, it impregnates 0.5-1 hours at room temperature, the activated carbon of dipping is placed in baking oven, temperature is to be dried at 110-120 DEG C, is obtained
To activated carbon；
(2) activated carbon dipping liquor potassic permanganate：The active charcoal quality of gained is handled according to step (1)
(mass ratio of activated carbon and composite solution is 1 to 300% configuration immersion solvent:3), immersion solvent is according to mass fraction
0.1% potassium permanganate, 1% potassium hydroxide, 98.9% aqueous solution are configured, then will be handled gained through step (1) and be lived
Change activated carbon to be added in immersion solvent, impregnate 0.5-1 hours at room temperature；
(3) activated carbon for impregnating immersion solvent is placed in baking oven at 110-120 DEG C and dried, obtained graphene and answer
Close activated carbon.
Embodiment 5
A kind of graphene filtering material preparation method is present embodiments provided, specifically includes following steps：
(1) activated carbon is activated：The mixed solution of graphene and hydrogen peroxide is configured to hydrogen peroxide concentration 5%, graphene
Concentration 0.1%, activated carbon is with hydrogen peroxide solution according to 1：15 mass ratio, activated carbon is immersed in hydrogen peroxide solution, stirring
Uniformly, it impregnates 0.5-1 hours at room temperature, the activated carbon of dipping is placed in baking oven, temperature is to be dried at 110-120 DEG C, is obtained
To activated carbon；
(2) activated carbon dipping liquor potassic permanganate：The active charcoal quality of gained is handled according to step (1)
(mass ratio of activated carbon and composite solution is 1 to 2000% configuration immersion solvent:20), immersion solvent is according to mass fraction
1% potassium permanganate, 10% potassium hydroxide, 89% aqueous solution are configured, then gained activation will be handled through step (1) and is lived
Property charcoal be added in immersion solvent, at room temperature impregnate 0.5-1 hours；
(3) activated carbon for impregnating immersion solvent is placed in baking oven at 110-120 DEG C and dried, obtained graphene and answer
Close activated carbon.
Comparative example 1
This comparative example provides a kind of graphene filtering material preparation method, and substantially the same manner as Example 1, difference is only
It is：This comparative example does not contain step 2 and 3.
Comparative example 2
This comparative example provides a kind of graphene filtering material preparation method, and substantially the same manner as Example 3, difference is only
It is：In the step 1 of this comparative example, the mixed solution is graphene solution, does not add hydrogen peroxide.
Comparative example 3
This comparative example provides a kind of graphene filtering material preparation method, and substantially the same manner as Example 4, difference is only
It is：In the step 2 of this comparative example, potassium permanganate is free of in the immersion solvent.
Comparative example 4
This comparative example provides a kind of graphene filtering material preparation method, and substantially the same manner as Example 4, difference is only
It is：In the step 2 of this comparative example, potassium hydroxide is free of in the immersion solvent.
Performance test
Graphene filtering material prepared by each embodiment and comparative example is tested for the property, test method is：QB/
T2761.The results are shown in Table 1.
Table 1
There are many concrete application approach of the present invention, and the above is only the preferred embodiment of the present invention.More than it should be pointed out that
Embodiment is merely to illustrate the present invention, and the protection domain being not intended to restrict the invention.For the common skill of the art
For art personnel, without departing from the principle of the present invention, several improvement can also be made, these improvement also should be regarded as this hair
Bright protection domain.
Claims (10)
1. a kind of preparation method of graphene filtering material, which is characterized in that include the following steps：
A, activated carbon activates：Activated carbon is immersed in the hydrogen peroxide solution of graphene-containing, is then dried the activated carbon after dipping
It is dry, obtain activated carbon；
B, activated carbon is immersed in composite solution, then by after dipping activated carbon dry to get.
2. the preparation method of graphene filtering material according to claim 1, which is characterized in that in step A, the activity
The mass ratio of the hydrogen peroxide solution of charcoal and graphene-containing is 1:5-1:15.
3. the preparation method of graphene filtering material according to claim 1, which is characterized in that described to contain stone in step A
In the hydrogen peroxide solution of black alkene, a concentration of 0.01%-0.5% of graphene, hydrogen peroxide concentration 1%-5%.
4. the preparation method of graphene filtering material according to claim 1 or 2, which is characterized in that the activated carbon choosing
From one or more of coaly activated carbon, cocoanut active charcoal, active fruit shell carbon, timber activated carbon.
5. the preparation method of graphene filtering material according to claim 1, which is characterized in that in step B, the activation
The mass ratio of activated carbon and composite solution is 1:0.5-1：20.
6. the preparation method of graphene filtering material according to claim 1 or 5, which is characterized in that the composite solution
For be 0.1-1% containing mass fraction potassium permanganate, the aqueous solution of the potassium hydroxide of 1-10%.
7. the preparation method of graphene filtering material according to claim 1, which is characterized in that in step A, the dipping
Time is 0.5-1 hours；The drying temperature is 110-120 DEG C.
8. the preparation method of graphene filtering material according to claim 1, which is characterized in that in step B, the dipping
Time is 0.5-1 hours；The drying temperature is 110-120 DEG C.
A kind of 9. graphene filtering material prepared by method according to claim 11, which is characterized in that the graphene mistake
In filter material material, the load capacity of graphene on the activated carbon is 0.01%-1%.
10. a kind of application of graphene filtering material according to claim 9 in air cleaning facility.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810079056.9A CN108201877B (en) | 2018-01-26 | 2018-01-26 | A kind of graphene filtering material and its preparation method and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810079056.9A CN108201877B (en) | 2018-01-26 | 2018-01-26 | A kind of graphene filtering material and its preparation method and application |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108201877A true CN108201877A (en) | 2018-06-26 |
| CN108201877B CN108201877B (en) | 2019-11-15 |
Family
ID=62605255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810079056.9A Active CN108201877B (en) | 2018-01-26 | 2018-01-26 | A kind of graphene filtering material and its preparation method and application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108201877B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109045992A (en) * | 2018-08-15 | 2018-12-21 | 广州康滤净化科技有限公司 | A kind of net wind material of the compound removing taste of graphene and preparation method thereof |
| CN109289915A (en) * | 2018-10-24 | 2019-02-01 | 山西新华化工有限责任公司 | Suitable for loading the efficient formaldehyde scavenging material and preparation method of air purifier |
| CN113600128A (en) * | 2021-07-21 | 2021-11-05 | 北京飞燕石化环保科技发展有限公司 | Composite material based on multilayer graphene and preparation method and application thereof |
| CN114700037A (en) * | 2022-03-25 | 2022-07-05 | 南通三善环保科技有限公司 | Active carbon composite material and process |
| US20220372661A1 (en) * | 2021-05-20 | 2022-11-24 | Zhejiang Kabute Technology Co., Ltd. | Covered yarn material for heating blanket felt, covered yarn, and woven product thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103239973A (en) * | 2013-01-14 | 2013-08-14 | 无锡市凯利药业有限公司 | Formaldehyde adsorbing decomposing agent |
| CN104209093A (en) * | 2014-09-29 | 2014-12-17 | 西安华陆环保设备有限公司 | Preparation method for modified activated carbon fibres used for formaldehyde adsorption |
| CN105709498A (en) * | 2016-02-29 | 2016-06-29 | 徐州深蓝新材料科技有限公司 | Graphene carbon filtering material and preparation method thereof |
| CN106179211A (en) * | 2016-07-25 | 2016-12-07 | 河南师范大学 | A kind of for going the preparation method of the active carbon adsorption material of a good appetite suddenly appearing in a serious disease low concentration formaldehyde |
| CN107456948A (en) * | 2017-09-22 | 2017-12-12 | 圣盟（廊坊）新材料研究院有限公司 | A kind of preparation method of purification of air graphene composite activated carbon |
-
2018
- 2018-01-26 CN CN201810079056.9A patent/CN108201877B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103239973A (en) * | 2013-01-14 | 2013-08-14 | 无锡市凯利药业有限公司 | Formaldehyde adsorbing decomposing agent |
| CN104209093A (en) * | 2014-09-29 | 2014-12-17 | 西安华陆环保设备有限公司 | Preparation method for modified activated carbon fibres used for formaldehyde adsorption |
| CN105709498A (en) * | 2016-02-29 | 2016-06-29 | 徐州深蓝新材料科技有限公司 | Graphene carbon filtering material and preparation method thereof |
| CN106179211A (en) * | 2016-07-25 | 2016-12-07 | 河南师范大学 | A kind of for going the preparation method of the active carbon adsorption material of a good appetite suddenly appearing in a serious disease low concentration formaldehyde |
| CN107456948A (en) * | 2017-09-22 | 2017-12-12 | 圣盟（廊坊）新材料研究院有限公司 | A kind of preparation method of purification of air graphene composite activated carbon |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109045992A (en) * | 2018-08-15 | 2018-12-21 | 广州康滤净化科技有限公司 | A kind of net wind material of the compound removing taste of graphene and preparation method thereof |
| CN109289915A (en) * | 2018-10-24 | 2019-02-01 | 山西新华化工有限责任公司 | Suitable for loading the efficient formaldehyde scavenging material and preparation method of air purifier |
| US20220372661A1 (en) * | 2021-05-20 | 2022-11-24 | Zhejiang Kabute Technology Co., Ltd. | Covered yarn material for heating blanket felt, covered yarn, and woven product thereof |
| US12104285B2 (en) * | 2021-05-20 | 2024-10-01 | Zhejiang Kabute Technology Co., Ltd. | Covered yarn material for heating blanket felt, covered yarn, and woven product thereof |
| CN113600128A (en) * | 2021-07-21 | 2021-11-05 | 北京飞燕石化环保科技发展有限公司 | Composite material based on multilayer graphene and preparation method and application thereof |
| CN114700037A (en) * | 2022-03-25 | 2022-07-05 | 南通三善环保科技有限公司 | Active carbon composite material and process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108201877B (en) | 2019-11-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108201877B (en) | A kind of graphene filtering material and its preparation method and application | |
| CN110935280B (en) | Nitrogen-doped mesoporous bamboo-based biochar and application thereof | |
| CN101279236A (en) | Purificant for adsorbing ammonia gas and method of preparing the same | |
| CN110385104A (en) | A kind of modified zeolite flyash composite adsorbing material and preparation method thereof | |
| CN108380214A (en) | A method for the preparation of modified sepiolite and its application in wastewater treatment | |
| CN109647342B (en) | Moisture-proof renewable activated carbon and preparation method thereof | |
| CN110605108A (en) | A method for regeneration of desulfurization and denitrification waste activated carbon | |
| CN100462128C (en) | Liquid for absorbing waste organic gas and its application | |
| CN114367278A (en) | Method for preparing biochar composite catalytic material and application | |
| CN101486769A (en) | Preparation of amidoxime group bacteria cellulose | |
| CN109550484A (en) | A kind of preparation method of instruction plant stem foot chromium ion adsorbent | |
| CN104353425B (en) | A kind of flyash of energy formaldehyde adsorption and preparation method thereof | |
| CN107008228B (en) | A kind of preparation method of three-dimensional modified graphene strainer | |
| CN108273474A (en) | A kind of preparation method of modified activated carbon of the surface rich in phenolic hydroxyl group | |
| CN117285171A (en) | Application of Fe/C composites combined with Shewanella oneida in degrading the pesticide malathion | |
| CN114832838B (en) | Metal/sulfur-persulfate-loaded biochar composite materials and their preparation and application | |
| CN107213871A (en) | A kind of preparation method of air purifying preparation | |
| CN108176415A (en) | A kind of air purification raw material of wood-charcoal cleans regenerative use technology | |
| CN110280252A (en) | A kind of catalyst of degradation of formaldehyde and preparation method thereof | |
| CN109985604A (en) | Chelating agent modified magnetic mesoporous carbon adsorption material and preparation method and application method | |
| CN105935541B (en) | A kind of hollow fiber ceramic membrane absorption plant for petroleum vapor recovery | |
| CN112110502A (en) | Removing agent for micro-plastics in water body | |
| CN117019101A (en) | A loaded activated carbon composite material and its preparation method and application | |
| CN104725021A (en) | Room-temperature catalytic oxidation type air-purifying decorative material and preparation method thereof | |
| CN110280300A (en) | A kind of preparation method and application loading Mn oxide ordered mesoporous carbon composite material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |