CN102423690B - Preparation method of mesoporous tomato stem active carbon - Google Patents
Preparation method of mesoporous tomato stem active carbon Download PDFInfo
- Publication number
- CN102423690B CN102423690B CN 201110315217 CN201110315217A CN102423690B CN 102423690 B CN102423690 B CN 102423690B CN 201110315217 CN201110315217 CN 201110315217 CN 201110315217 A CN201110315217 A CN 201110315217A CN 102423690 B CN102423690 B CN 102423690B
- Authority
- CN
- China
- Prior art keywords
- tomato stem
- active carbon
- tomato
- mesoporous
- mixture
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Carbon And Carbon Compounds (AREA)
Abstract
The invention relates to a preparation method of mesoporous tomato stem active carbon, comprising the following steps: drying and crushing tomato stems, and sieving with a 45 mesh sieve for subsequent use; adding H4P2O7 in the processed tomato stems according to a weight ratio of the tomato stems to H4P2O7 being 1 to 0.75-1, carrying out ultrasonic processing for 15-20 min or heating for 15-20 min in a water bath kettle, standing for 7.5-8 h to obtain a mixture; heating the mixture in a muffle furnace to 450-500 DEG C, carbonizing for 1-1.5 h, cooling to room temperature, then taking out the solid material, washing, drying or naturally drying in the air. The prepared mesoporous tomato stem active carbon has the advantages of large specific surface area, developed aperture, multiple meso pores, strong adsorption, and good performance, and can effectively remove macromolecular harmful pollutant.
Description
Technical field
The present invention relates to a kind of method for preparing active carbon, be specifically related to a kind of method of utilizing tomato stem to prepare many mesoporous activated carbons, belong to resource reutilization and prepare the sorbing material technical field.
Background technology
Active carbon is a kind of good sorbent material; its specific area is large, hole is flourishing, adsorption desorption speed is fast, power of regeneration is strong; have the adsorption dynamics adsorption kinetics performance that large adsorption capacity is become reconciled, be widely used in the fields such as environmental protection, chemical industry, military chemistry protection and electrochmical power source.All the time, the raw material of preparation active carbon is with coal, and petroleum coke, timber are main; In recent years, in order to reduce the price of active carbon, the researcher adopts agricultural solid waste such as cotton stem more, cornstalk, the preparation such as peanut shell active carbon.As the Chinese patent file open " a kind of method for preparing active carbon with wheat stalk " of CN101049930A, application number 200710020778.9, adopting wheat stalk is that raw material prepares active carbon take phosphoric acid as activator.Phosphoric acid is a kind of activator commonly used, and the mesoporous content of active carbon of phosphoric acid method preparation is high than zinc chloride process, alkaline process, and activation efficiency is low, activator level is large but exist, subsequent treatment trouble, the problems such as washing difficulty.
Tomato is a kind of global crops, and annual have a large amount of tomato stems to produce, and there is no at present the approach that the energy industrialization utilizes, and is necessary to seek the recycling method of reasonable cost to tomato stem, realizes its resource, high-valued and commercialization.
Summary of the invention
The object of the present invention is to provide a kind of method of utilizing tomato stem many mesoporous activated carbons of preparation under the pyrophosphoric acid activation, be more suitable in the removal to macromolecule contaminant.
Term explanation: tomato stem refers to gather in the crops all plant after tomato.
Technical scheme of the present invention is as follows:
A kind of preparation method of how mesoporous tomato stem active carbon comprises the following steps:
(1) pretreatment of raw material: with the tomato stem washing, pulverize after oven dry under 80 ℃-100 ℃, cross 45 mesh sieves, standby;
(2) raw material impregnation process: press tomato stem: H
4P
2O
7=1: the 0.75-1 mass ratio, with H
4P
2O
7Join in the tomato stem particle that step (1) processes, stir while adding, after mixing, ultrasonic processing 15～20min or mixture heat treated 15-20min in 90 ℃ of water-baths, standing 7-8h gets mixture;
(3) activation process: the mixture that step (2) is handled well is placed in Muffle furnace, be warming up to 450-500 ℃, carbonization-activation 1～1.5h, stopped heating, after being cooled to room temperature, take out the solid material, wash to pH value 6.5-7.0 with deionized water, dry or naturally dry, namely getting how mesoporous tomato stem active carbon.
Preferably, a kind of preparation method of how mesoporous tomato stem active carbon comprises the following steps:
(1) with the tomato stem washing, pulverize after oven dry under 100 ℃, cross 45 mesh sieves, standby.
(2) press tomato stem: H
4P
2O
7=1: 1 mass ratio is with H
4P
2O
7Join in the tomato stem particle of step (1) processing, stir while adding, after mixing, standing 8h after ultrasonic processing 15min gets mixture;
(3) mixture of step (2) being handled well is placed in Muffle furnace, is warming up to 500 ℃, charing 1h, and stopped heating after being cooled to room temperature, takes out the solid material, washs to pH value 6.5 with deionized water, and oven dry namely gets how mesoporous tomato stem active carbon.
Compared with prior art, excellent results of the present invention is:
1, the present invention with the tomato stem raw material, realizes twice laid, resources circulation, the advantage such as integrated cost is low;
2, the inventive method employing pyrophosphoric acid is activator, and technique is simple, and when the phosphoric acid of comparing was activator, the pyrophosphoric acid consumption was few, had reduced the discharging of phosphorus.And under specific process conditions of the present invention, the pyrophosphoric acid molecular energy enters into the inside of tomato stem faster, and activation efficiency is high.
3, the specific area of the tomato stem active carbon of the inventive method preparation is large, and particle diameter can reach 1385.1m in the specific area of 0.075～0.150mm
2/ g, hole is flourishing, and mesoporous more, suction-operated is strong, and function admirable is more suitable for removing large molecule noxious pollutant.
Description of drawings
Fig. 1 is the tomato stem active carbon electromicroscopic photograph (700 times) of embodiment 1 preparation.
Fig. 2 is tomato stem active carbon pore-size distribution and the N of embodiment 1 preparation
2The adsorption/desorption curve map.
The specific embodiment
The present invention is described further below by embodiment, but protection scope of the present invention is not limited in this.In embodiment, plant used shatters the SY type that type number provides for CHYUN TSEN machinery Co., Ltd.Muffle furnace is the KSW type, and Beijing is bright Medical Instruments factory forever.
(1) with the tomato stem washing, after oven dry under 100 ℃, pulverize with the plant disintegrating machine, cross 45 mesh sieves, standby;
(2) tomato stem: H in mass ratio
4P
2O
7=1: 1, with H
4P
2O
7Join in the tomato stem particle of step (1) processing, stir while adding, after ultrasonic processing 15min, under normal temperature, standing 8h gets mixture;
(3) mixture of step (2) being handled well is placed in Muffle furnace, is warming up to 500 ℃, charing 1h, and stopped heating after being cooled to room temperature, takes out the solid material, washs to pH value 6.5 with deionized water, and oven dry namely gets how mesoporous tomato stem active carbon.
Gained tomato stem active carbon electromicroscopic photograph as shown in Figure 1, pore-size distribution and N
2The adsorption/desorption curve as shown in Figure 2, by result as can be known, the activation of prepared active carbon fully, mesoporous more, specific area can reach 1385.1m
2/ g (particle diameter 0.075-0.150mm).
Embodiment 2
(1) with the tomato stem washing, after oven dry under 80 ℃, pulverize with the plant disintegrating machine, cross 45 mesh sieves, standby;
(2) tomato stem: H in mass ratio
4P
2O
7=1: 0.75, with H
4P
2O
7Join in the tomato stem particle that step (1) processes, after mixing, in 90 ℃ of water-baths after heat treated 18min, under normal temperature, standing 8h, get mixture with mixture;
(3) mixture of step (2) being handled well is placed in Muffle furnace, is warming up to 450 ℃, charing 1.5h, stopped heating after being cooled to room temperature, takes out the solid material, wash to pH value 7.0 with deionized water, naturally dry, namely get how mesoporous tomato stem active carbon.
Embodiment 3
(1) with the tomato stem washing, after oven dry under 90 ℃, pulverize with the plant disintegrating machine, cross 45 mesh sieves, standby;
(2) tomato stem: H in mass ratio
4P
2O
7=1: 0.9, with H
4P
2O
7Join in the tomato stem particle of step (1) processing, stir while adding, after ultrasonic processing 18min, standing 7.5h gets mixture;
(3) mixture of step (2) being handled well is placed in Muffle furnace, is warming up to 500 ℃, charing 1h, stopped heating after being cooled to room temperature, takes out the solid material, wash to pH value 6.5 with deionized water, dry or naturally dry, namely get how mesoporous tomato stem active carbon.
Claims (1)
1. the preparation method of mesoporous tomato stem active carbon more than a kind, is characterized in that, step is as follows:
(1) with the tomato stem washing, after oven dry under 100 ℃, pulverize with the plant disintegrating machine, cross 45 mesh sieves, standby;
(2) tomato stem: H in mass ratio
4P
2O
7=1:1 is with H
4P
2O
7Join in the tomato stem particle that step (1) processes, stir while adding, ultrasonic processing 15min or in 90 ℃ of water-baths after heat treated 15min, standing 8h gets mixture;
(3) mixture of step (2) being handled well is placed in Muffle furnace, is warming up to 450 ℃, charing 1h, stopped heating after being cooled to room temperature, takes out the solid material, wash to pH value 6.5-7.0 with deionized water, dry or naturally dry, namely get how mesoporous tomato stem active carbon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110315217 CN102423690B (en) | 2011-10-17 | 2011-10-17 | Preparation method of mesoporous tomato stem active carbon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110315217 CN102423690B (en) | 2011-10-17 | 2011-10-17 | Preparation method of mesoporous tomato stem active carbon |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102423690A CN102423690A (en) | 2012-04-25 |
| CN102423690B true CN102423690B (en) | 2013-06-12 |
Family
ID=45957764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110315217 Expired - Fee Related CN102423690B (en) | 2011-10-17 | 2011-10-17 | Preparation method of mesoporous tomato stem active carbon |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102423690B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105174255A (en) * | 2015-09-23 | 2015-12-23 | 浙江师范大学 | Method for preparing super-porous carbon material through persimmon fruit peels |
| CN105480974B (en) * | 2016-01-15 | 2018-08-21 | 山东大学 | A kind of preparation method of high yield mesoporous activated carbon |
| CN108212085A (en) * | 2018-01-18 | 2018-06-29 | 上海海洋大学 | A kind of method of antibiotic in modified Enteromorpha charcoal removal breeding water body |
| CN108503230A (en) * | 2018-04-24 | 2018-09-07 | 佛山市奥耶克思机械设备有限公司 | A kind of package substrate composite material and preparation method |
| CN110683539A (en) * | 2019-10-25 | 2020-01-14 | 潍坊科技学院 | Method for preparing biological activated carbon by utilizing tomato and eggplant straw mixture |
| CN113145068A (en) * | 2021-02-20 | 2021-07-23 | 农业部沼气科学研究所 | Rice straw biochar impregnated with zinc chloride and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6060424A (en) * | 1995-09-28 | 2000-05-09 | Westvaco Corporation | High energy density carbons for use in double layer energy storage devices |
| CN1669919A (en) * | 2005-02-28 | 2005-09-21 | 昆明理工大学 | Method for producing mesopore activated carbon |
| CN101070155A (en) * | 2007-06-08 | 2007-11-14 | 山东大学 | Method for preparing active charcoal of scripus tubernaemontani stem |
| CN101648707A (en) * | 2009-08-27 | 2010-02-17 | 南京林业大学 | Preparation method of activated carbon with high pore volume |
-
2011
- 2011-10-17 CN CN 201110315217 patent/CN102423690B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6060424A (en) * | 1995-09-28 | 2000-05-09 | Westvaco Corporation | High energy density carbons for use in double layer energy storage devices |
| CN1669919A (en) * | 2005-02-28 | 2005-09-21 | 昆明理工大学 | Method for producing mesopore activated carbon |
| CN101070155A (en) * | 2007-06-08 | 2007-11-14 | 山东大学 | Method for preparing active charcoal of scripus tubernaemontani stem |
| CN101648707A (en) * | 2009-08-27 | 2010-02-17 | 南京林业大学 | Preparation method of activated carbon with high pore volume |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102423690A (en) | 2012-04-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102423690B (en) | Preparation method of mesoporous tomato stem active carbon | |
| WO2021082761A1 (en) | Lanthanum carbonate modified co-pyrolysis sludge biochar and preparation method and application thereof | |
| CN104289179B (en) | Method for preparing attapulgite/carbon composite adsorbent by one-step carbonization-activation | |
| CN103316632B (en) | A kind of method of giantreed charcoal, preparation method and strengthening ammonia nitrogen absorption | |
| CN107115843A (en) | A kind of preparation method and applications for coming from peanut shell modified activated carbon | |
| CN103936006A (en) | Method for preparing porous activated carbon material from rice bran | |
| CN103288080B (en) | A kind ofly prepare the ecological carbon method that mesoporous is high, adsorptivity is strong | |
| CN102626607A (en) | Preparation method and application of residual activated sludge adsorbent | |
| CN103480330B (en) | Biomass-modified adsorbent for adsorbing coking wastewater, and preparation method and application thereof | |
| WO2021212672A1 (en) | Special pig manure charcoal modified by amino grafting, preparation method, and use thereof in farmland water-removing and nitrogen recycling | |
| CN109231204A (en) | A kind of method of biomass substep activation preparation porous charcoal | |
| CN106379897A (en) | Method for preparing bamboo-based activated carbon based on phosphoric acid method and physical and chemical combination method | |
| CN109734089A (en) | A kind of high-specific surface area vinasse method for preparation of active carbon | |
| CN106348292A (en) | Method for jointly producing and preparing bamboo activated carbon, bamboo vinegar and bamboo tar | |
| CN103771411A (en) | Preparation method for active carbon | |
| CN103539118A (en) | Preparation method of activated carbon for supercapacitor | |
| CN103771410A (en) | Preparation method for crop straw active carbon | |
| CN102730681A (en) | Preparation method of high adsorptive activated carbon | |
| CN104326471A (en) | Method for preparing active carbon from licorice waste residue | |
| CN109550484B (en) | Preparation method of invasive plant stem-based chromium ion adsorbent | |
| CN105935581A (en) | Inorganic acid catalysis hydrothermal method for preparation of bamboo biochar | |
| CN104998618A (en) | Method for preparing hydrothermal biomass charcoal from pecan shells | |
| CN110773123A (en) | Biochar/zeolite composite adsorbent material and preparation method thereof | |
| CN106000317A (en) | Efficient demercuration absorbent for biomass char | |
| CN102653402A (en) | Method for preparing active carbon |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130612 Termination date: 20151017 |
|
| EXPY | Termination of patent right or utility model |