CN108273474A - A kind of preparation method of modified activated carbon of the surface rich in phenolic hydroxyl group - Google Patents
A kind of preparation method of modified activated carbon of the surface rich in phenolic hydroxyl group Download PDFInfo
- Publication number
- CN108273474A CN108273474A CN201810151918.4A CN201810151918A CN108273474A CN 108273474 A CN108273474 A CN 108273474A CN 201810151918 A CN201810151918 A CN 201810151918A CN 108273474 A CN108273474 A CN 108273474A
- Authority
- CN
- China
- Prior art keywords
- activated carbon
- hydroxyl group
- phenolic hydroxyl
- rich
- sodium hydroxide
- 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.)
- Pending
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
- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
The invention discloses a kind of preparation methods of modified activated carbon of surface rich in phenolic hydroxyl group, are as follows：It takes a certain amount of wood activated charcoal powder to be placed in polytetrafluoroethyltank tank, sodium hydroxide solution, the ratio 1 of activated carbon and sodium hydroxide solution is added:8‑10 g/mL.Then polytetrafluoroethyltank tank is put into stainless steel autoclave, temperature rises to 170 190 C, after reacting 6 8h, takes out sample and is washed with deionized to neutrality, obtains the modified activated carbon that surface is rich in phenolic hydroxyl group.The present invention passes through a step hydro-thermal reaction, wood activated charcoal is mixed with a certain concentration sodium hydroxide solution, the modified activated carbon under high temperature hydrothermal condition, the surface of modified activated carbon obtained is rich in phenolic hydroxyl group, the quantity of phenolic hydroxyl group increases 7.8 ~ 9.1 times compared to unmodified activated carbon, so that activated carbon surface hydrophily enhances, activated carbon adsorption polar gas and the ability of alkaline matter are improved.
Description
Technical field
The invention belongs to forest chemical fields, and in particular to a kind of preparation side of modified activated carbon of the surface rich in phenolic hydroxyl group
Method.
Background technology
Activated carbon is to apply extremely wide adsorption cleaning material, it is widely used in industrial or agricultural and field of environment protection.
However the adsorption for how improving activated carbon has been a hot spot of research.The absorption property of activated carbon is mainly by its physics and change
It learns suction-operated to realize, for finished activated charcoal, the change of surface chemical structure will produce prodigious influence to substance absorption.
So the effective ways for changing finished product activated carbon adsorptive capacity are to change activated carbon surface functional group to promote chemisorption energy
Power.The present invention is mainly to promote acid functional mass contg of the activated carbon surface mainly based on phenolic hydroxyl group.Surface acidity functional group
The increase of content can be such that activated carbon surface hydrophily enhances, and improve the ability of activated carbon adsorption polar gas；On the other hand
The increase of surface acidity functional group content makes activated carbon surface total acidity increase, to enhance activated carbon adsorption alkaline matter
Ability.At present, increase the surface acidic groups of activated carbon and its surface hydrophilicity is mainly improved by oxidation, such as use nitric acid, double
The strong oxidizers impregnation activated carbon such as oxygen water.The present invention uses highly basic, i.e., certain density sodium hydroxide is reagent, using water
Hot method is modified the quantity that the acidic functionality phenolic hydroxyl group of activated carbon surface can be substantially improved in finished product wood activated charcoal.
Invention content
It is an object of the invention in view of the shortcomings of the prior art, providing a kind of modified activated carbon of surface rich in phenolic hydroxyl group
Preparation method.
To achieve the above object, the present invention adopts the following technical scheme that：
The present invention provides a kind of preparation method of modified activated carbon of the surface rich in phenolic hydroxyl group, i.e. handle by a step hydro-thermal reaction
Wood activated charcoal is mixed with a certain concentration sodium hydroxide solution, the modified activated carbon under high temperature hydrothermal condition, using washing and
It is dried to obtain the modified activated carbon that surface is rich in phenolic hydroxyl group, is as follows：
（1）Wood activated charcoal is crossed into 200 mesh sieve, is washed with deionized 3-5 times to cleaning solution clear, colorless, 105 ~ 110
DEG C dry 12 h are spare；
（2）Take a certain amount of step（1）The active powdered carbon of gained is placed in a constant volume polytetrafluoroethyltank tank, and it is molten that sodium hydroxide is added
The mass volume ratio of liquid, the activity powdered carbon and sodium hydroxide solution is 1:8-10 g/mL, the wherein concentration of sodium hydroxide solution
For 2.5-3.5 mol/L；
（3）Then by step（2）Polytetrafluoroethyltank tank be put into stainless steel autoclave, temperature rises to 160-190 C, and hydro-thermal is anti-
It after answering 6-8 h, takes out sample and is washed repeatedly with deionized water to neutrality, surface changing rich in phenolic hydroxyl group is obtained after vacuum drying
Property activated carbon.
The beneficial effects of the present invention are：The present invention is by a step hydro-thermal reaction, by wood activated charcoal and a certain concentration hydrogen
Sodium hydroxide solution mixes, the modified activated carbon under high temperature hydrothermal condition, and the surface of modified activated carbon obtained is rich in phenolic hydroxyl group, phenol
The quantity of hydroxyl increases 7.8 ~ 9.1 times compared to unmodified activated carbon, so that activated carbon surface hydrophily enhances, is promoted
The ability of activated carbon adsorption polar gas and alkaline matter.
Specific implementation mode
Below in conjunction with specific embodiment, the present invention will be further described, but the present invention is not limited only to these embodiments.
Embodiment 1
Wood activated charcoal is crossed into 200 mesh sieve, 3 times is washed with deionized to cleaning solution clear, colorless, 12 h is dried at 105 DEG C
It is spare.It takes the above-mentioned active powdered carbon of 1.0 g to be placed in 20 mL polytetrafluoroethyltank tanks, 2.5 mol/L sodium hydroxide solutions 8 is added
mL.Then polytetrafluoroethyltank tank is put into stainless steel autoclave, rising to 170 C by room temperature keeps the temperature 6 h, is then slowly dropped to room
Temperature is taken out sample and is washed repeatedly with deionized water to neutrality, and vacuum drying obtains the modified activated carbon that surface is rich in phenolic hydroxyl group.Change
Property activated carbon 0.41mmol/g is increased to by 0.047 mmol/g compared to the phenolic hydroxyl group quantity of unmodified activated carbon, increase 8.7
Times.
Embodiment 2
Wood activated charcoal is crossed into 200 mesh sieve, 5 times is washed with deionized to cleaning solution clear, colorless, 12 h is dried at 110 DEG C
It is spare.It takes the above-mentioned active powdered carbon of 3 g to be placed in 50 mL polytetrafluoroethyltank tanks, 3 mol/L sodium hydroxide solutions, 30 mL is added.
Then polytetrafluoroethyltank tank is put into stainless steel autoclave, rising to 180 C by room temperature keeps the temperature 8 h, is then slowly dropped to room temperature,
It takes out sample to be washed repeatedly with deionized water to neutrality, vacuum drying obtains the modified activated carbon that surface is rich in phenolic hydroxyl group.It is modified
Activated carbon increases to 0.37 mmol/g compared to unmodified activated carbon phenolic hydroxyl group by 0.047 mmol/g, increases 7.8 times.
Embodiment 3
Wood activated charcoal is crossed into 200 mesh sieve, 4 times is washed with deionized to cleaning solution clear, colorless, 12 h is dried at 110 DEG C
It is spare.It takes the above-mentioned active powdered carbon of 1.5 g to be placed in 20 mL polytetrafluoroethyltank tanks, 3.0 mol/L sodium hydroxide solutions 15 is added
mL.Then polytetrafluoroethyltank tank is put into stainless steel autoclave, rising to 170 C by room temperature keeps the temperature 6 h, is then slowly dropped to room
Temperature is taken out sample and is washed repeatedly with deionized water to neutrality, and vacuum drying obtains the modified activated carbon that surface is rich in phenolic hydroxyl group.Change
Property activated carbon 0.43 mmol/g is increased to by 0.047 mmol/g compared to unmodified activated carbon phenolic hydroxyl group, increase 9.1 times.
The foregoing is merely presently preferred embodiments of the present invention, all equivalent changes done according to scope of the present invention patent with
Modification should all belong to the covering scope of the present invention.
Claims (2)
1. a kind of preparation method of modified activated carbon of surface rich in phenolic hydroxyl group, it is characterised in that：Wood activated charcoal and hydrogen-oxygen
Change sodium solution mixing, modified activated carbon under hydrothermal conditions, using the modification for washing and being dried to obtain surface and be rich in phenolic hydroxyl group
Activated carbon.
2. a kind of preparation method of modified activated carbon of the surface according to claim 1 rich in phenolic hydroxyl group, it is characterised in that：
It is as follows：
（1）Wood activated charcoal is crossed into 200 mesh sieve, is washed with deionized 3-5 times to cleaning solution clear, colorless, at 105 ~ 110 DEG C
Dry 12 h are spare；
（2）Take step（1）The active powdered carbon of gained is placed in polytetrafluoroethyltank tank, and sodium hydroxide solution, the activated carbon is added
The mass volume ratio of powder and sodium hydroxide solution is 1:8-10 g/mL, the wherein a concentration of 2.5-3.5 of sodium hydroxide solution
mol/L；
（3）Then by step（2）Polytetrafluoroethyltank tank be put into stainless steel autoclave, temperature rises to 160-190 C, and hydro-thermal is anti-
It after answering 6-8 h, takes out sample and is washed repeatedly with deionized water to neutrality, surface changing rich in phenolic hydroxyl group is obtained after vacuum drying
Property activated carbon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810151918.4A CN108273474A (en) | 2018-02-14 | 2018-02-14 | A kind of preparation method of modified activated carbon of the surface rich in phenolic hydroxyl group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810151918.4A CN108273474A (en) | 2018-02-14 | 2018-02-14 | A kind of preparation method of modified activated carbon of the surface rich in phenolic hydroxyl group |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108273474A true CN108273474A (en) | 2018-07-13 |
Family
ID=62808529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810151918.4A Pending CN108273474A (en) | 2018-02-14 | 2018-02-14 | A kind of preparation method of modified activated carbon of the surface rich in phenolic hydroxyl group |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108273474A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110090491A (en) * | 2019-05-28 | 2019-08-06 | 上海蓝宇水处理股份有限公司 | A kind of filter medium for water process purification |
| CN114950550A (en) * | 2022-05-09 | 2022-08-30 | 安徽潜隆机电科技有限公司 | Chromium-free environment-friendly catalyst material for civil air defense |
| CN116328719A (en) * | 2021-12-22 | 2023-06-27 | 湖南中烟工业有限责任公司 | Phenolic hydroxyl modified activated carbon and preparation method and application thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS571442A (en) * | 1980-06-06 | 1982-01-06 | Ebara Infilco Co Ltd | Preparation of removing agent for heavy metal |
| CN1843904A (en) * | 2006-03-30 | 2006-10-11 | 复旦大学 | Method for conducting modification of surface hydroxy group of carbon nanotube |
| CN102120178A (en) * | 2011-02-11 | 2011-07-13 | 广东工业大学 | Active semicoke adsorbing agent and preparation method thereof |
| CN102755876A (en) * | 2012-07-24 | 2012-10-31 | 西安交通大学 | Modification treatment method of activated carbon for removing hydrocyanic acid |
| CN103159982A (en) * | 2013-03-18 | 2013-06-19 | 中国石油大学(华东) | Preparation method of nano carbon particles having core-shell structure for field of dielectric materials |
| CN106964197A (en) * | 2017-04-26 | 2017-07-21 | 吉林师范大学 | A kind of Supported On Granular Activated Carbon Nanoscale Iron composite filter element material and preparation method thereof |
-
2018
- 2018-02-14 CN CN201810151918.4A patent/CN108273474A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS571442A (en) * | 1980-06-06 | 1982-01-06 | Ebara Infilco Co Ltd | Preparation of removing agent for heavy metal |
| CN1843904A (en) * | 2006-03-30 | 2006-10-11 | 复旦大学 | Method for conducting modification of surface hydroxy group of carbon nanotube |
| CN102120178A (en) * | 2011-02-11 | 2011-07-13 | 广东工业大学 | Active semicoke adsorbing agent and preparation method thereof |
| CN102755876A (en) * | 2012-07-24 | 2012-10-31 | 西安交通大学 | Modification treatment method of activated carbon for removing hydrocyanic acid |
| CN103159982A (en) * | 2013-03-18 | 2013-06-19 | 中国石油大学(华东) | Preparation method of nano carbon particles having core-shell structure for field of dielectric materials |
| CN106964197A (en) * | 2017-04-26 | 2017-07-21 | 吉林师范大学 | A kind of Supported On Granular Activated Carbon Nanoscale Iron composite filter element material and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 张梦竹等: "碱改性活性炭表面特征及其吸附甲烷的研究", 《环境科学》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110090491A (en) * | 2019-05-28 | 2019-08-06 | 上海蓝宇水处理股份有限公司 | A kind of filter medium for water process purification |
| CN110090491B (en) * | 2019-05-28 | 2023-12-05 | 上海蓝宇水处理股份有限公司 | Filter medium for water treatment and purification |
| CN116328719A (en) * | 2021-12-22 | 2023-06-27 | 湖南中烟工业有限责任公司 | Phenolic hydroxyl modified activated carbon and preparation method and application thereof |
| CN114950550A (en) * | 2022-05-09 | 2022-08-30 | 安徽潜隆机电科技有限公司 | Chromium-free environment-friendly catalyst material for civil air defense |
| CN114950550B (en) * | 2022-05-09 | 2024-02-20 | 安徽潜隆机电科技有限公司 | Chromium-free environment-friendly catalyst material for civil air defense |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105712466B (en) | A kind of ozone catalytic wet oxidation method of phenol wastewater | |
| CN100429155C (en) | Granular electrode catalyst stuffing for 3D electrode reactor and its preparing method | |
| CN105056882A (en) | Preparation method of modified charcoal-based adsorbent for removing hydrogen sulfide | |
| CN105481063B (en) | It is a kind of to be used to handle granule electrode of organic wastewater with difficult degradation thereby and preparation method thereof | |
| CN108273474A (en) | A kind of preparation method of modified activated carbon of the surface rich in phenolic hydroxyl group | |
| Kang et al. | Electron-rich biochar enhanced Z-scheme heterojunctioned bismuth tungstate/bismuth oxyiodide removing tetracycline | |
| CN104667916B (en) | Method for preparing catalytic wet oxidation catalyst | |
| CN105618066B (en) | A kind of catalytic wet oxidation catalyst and preparation method thereof | |
| CN106861622A (en) | A kind of water treatment agent for processing eutrophication water | |
| CN102389777B (en) | Preparation method and use of sulfydryl cotton stalk bark | |
| CN108483582A (en) | A kind of nitrite efficient degradation material and its preparation method and application | |
| CN108201877B (en) | A kind of graphene filtering material and its preparation method and application | |
| CN109967114A (en) | Shaddock scytoblastema nitrogen sulphur codope carbon material and its preparation method and application | |
| CN101264436A (en) | Application of luffa as adsorbent in metallic ion adsorption | |
| CN109250801A (en) | A kind of processing method of phenolic waste water | |
| JP5231294B2 (en) | Volatile organic compound adsorbent and method for producing the same | |
| CN104667936B (en) | Method for preparing catalytic wet oxidation catalyst | |
| CN105709732B (en) | Noble metal catalyst for catalytic wet oxidation and preparation method thereof | |
| CN106423276A (en) | Preparation method of nickel electric Fenton catalyst supported by nitrogen mixed with carbon | |
| CN104667933B (en) | Method for preparing wet oxidation catalyst | |
| CN102516322A (en) | Method for preparing levoglucosenone with magnetic solid phosphoric acid catalyst | |
| CN105712459B (en) | A kind of ozone catalytic wet oxidation method of acrylicacidandesters waste water | |
| CN105709776B (en) | The preparation method of catalytic wet oxidation catalyst | |
| CN102068971B (en) | Preparation method of poly-aluminum silicate | |
| CN206762633U (en) | A kind of spiral-flow plate-type chiasma type handles nitrous oxides exhaust gas washing, purifying tower |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180713 |