CN102423690A - Preparation method of mesoporous tomato stem active carbon - Google Patents
Preparation method of mesoporous tomato stem active carbon Download PDFInfo
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- CN102423690A CN102423690A CN2011103152178A CN201110315217A CN102423690A CN 102423690 A CN102423690 A CN 102423690A CN 2011103152178 A CN2011103152178 A CN 2011103152178A CN 201110315217 A CN201110315217 A CN 201110315217A CN 102423690 A CN102423690 A CN 102423690A
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- tomato
- bar
- active carbon
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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 preparation process of active carbon, be specifically related to a kind of method of utilizing the tomato bar 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 big, hole is flourishing, adsorption desorption speed is fast, power of regeneration is strong; Have the adsorption dynamics adsorption kinetics performance that big adsorption capacity is become reconciled, be widely used in 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 useless in the cotton bar more, cornstalk, preparation such as peanut shell active carbon.Like the Chinese patent file of CN101049930A, application number 200710020778.9 open " a kind of prepare process of active carbon with wheat stalk ", adopting wheat stalk is that raw material is that activator prepares active carbon with phosphoric acid.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 big but exist, subsequent treatment trouble, problems such as washing difficulty.
Tomato is a kind of global crops, and annual all have a large amount of tomato bars to produce, and the approach that at present still incompetent industrialization utilizes is necessary to utilize method again to what the tomato bar was sought reasonable cost, 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 the tomato bar under the pyrophosphoric acid activation, to prepare many mesoporous activated carbons, be more suitable in removal to macromolecule contaminant.
The term explanation: the tomato bar is meant all plant after the results tomato.
Technical scheme of the present invention is following:
A kind of how mesoporous tomato bar preparation method of active carbon may further comprise the steps:
(1) pretreatment of raw material: with the washing of tomato bar,, cross 45 mesh sieves 80 ℃-100 ℃ oven dry back pulverizing down, subsequent use;
(2) raw material impregnation process: press tomato bar: H
4P
2O
7=1: the 0.75-1 mass ratio, with H
4P
2O
7Join in the tomato bar particle of step (1) processing, stir while adding, after mixing, sonicated 15～20min leaves standstill 7-8h perhaps mixture heat treated 15-20min in 90 ℃ of water-baths, gets mixture;
(3) activation processing: the mixture that step (2) is handled well is placed in the Muffle furnace, is warming up to 450-500 ℃, carbonization-activation 1～1.5h; Stop heating; After being cooled to room temperature, take out the solid material, spend deionised water to pH value 6.5-7.0; The oven dry or dry naturally, promptly get how mesoporous tomato bar active carbon.
Preferably, a kind of how mesoporous tomato bar preparation method of active carbon may further comprise the steps:
(1) with the washing of tomato bar, 100 ℃ of oven dry back pulverizing down, cross 45 mesh sieves, subsequent use.
(2) press tomato bar: H
4P
2O
7=1: 1 mass ratio is with H
4P
2O
7Join in the tomato bar particle of step (1) processing, stir while adding, after mixing, leave standstill 8h behind the sonicated 15min, get mixture;
(3) mixture of step (2) being handled well is placed in the Muffle furnace, is warming up to 500 ℃, and charing 1h stops heating, be cooled to room temperature after, take out the solid material, spend deionised water to pH value 6.5, dry, promptly get how mesoporous tomato bar active carbon.
Compared with prior art, excellent results of the present invention is:
1, the present invention is with tomato bar raw material, realizes twice laid, resources circulation, advantage such as integrated cost is low;
2, the inventive method employing pyrophosphoric acid is an activator, and technology 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 bar faster, and activation efficiency is high.
3, the specific area of the tomato bar active carbon of the inventive method preparation is big, 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 big molecule noxious pollutant.
Description of drawings
Fig. 1 is the tomato bar active carbon electromicroscopic photograph (700 times) of embodiment 1 preparation.
Fig. 2 is the tomato bar active carbon pore-size distribution and the N of embodiment 1 preparation
2The adsorption/desorption curve map.
The specific embodiment
Through embodiment the present invention is done further explanation below, but protection scope of the present invention is not limited in this.Used plant disintegrating machine model is the SY type that CHYUN TSEN machinery Co., Ltd provides among the embodiment.Muffle furnace is the KSW type, the bright forever Medical Instruments in Beijing factory.
Embodiment 1
(1) with the washing of tomato bar, after oven dry under 100 ℃, pulverize with the plant disintegrating machine, cross 45 mesh sieves, subsequent use;
(2) press quality than tomato bar: H
4P
2O
7=1: 1, with H
4P
2O
7Join in the tomato bar particle of step (1) processing, stir while adding, behind the sonicated 15min, leave standstill 8h under the normal temperature and get mixture;
(3) mixture of step (2) being handled well is placed in the Muffle furnace, is warming up to 500 ℃, and charing 1h stops heating, be cooled to room temperature after, take out the solid material, spend deionised water to pH value 6.5, dry, promptly get how mesoporous tomato bar active carbon.
Gained tomato bar active carbon electromicroscopic photograph is as shown in Figure 1, pore-size distribution and N
2The adsorption/desorption curve is as shown in Figure 2, can be known by the result, and prepared active carbon activation is complete, and is mesoporous more, and specific area can reach 1385.1m
2/ g (particle diameter 0.075-0.150mm).
Embodiment 2
(1) with the washing of tomato bar, after oven dry under 80 ℃, pulverize with the plant disintegrating machine, cross 45 mesh sieves, subsequent use;
(2) press quality than tomato bar: H
4P
2O
7=1: 0.75, with H
4P
2O
7Join in the tomato bar particle of step (1) processing, after mixing, mixture behind the heat treated 18min, is left standstill 8h under the normal temperature in 90 ℃ of water-baths, get mixture;
(3) mixture of step (2) being handled well is placed in the Muffle furnace, is warming up to 450 ℃, and charing 1.5h stops heating, be cooled to room temperature after, take out the solid material, spend deionised water to pH value 7.0, dry naturally, promptly get how mesoporous tomato bar active carbon.
Embodiment 3
(1) with the washing of tomato bar, after oven dry under 90 ℃, pulverize with the plant disintegrating machine, cross 45 mesh sieves, subsequent use;
(2) press quality than tomato bar: H
4P
2O
7=1: 0.9, with H
4P
2O
7Join in the tomato bar particle of step (1) processing, stir while adding, behind the sonicated 18min, leave standstill 7.5h, get mixture;
(3) mixture of step (2) being handled well is placed in the Muffle furnace, is warming up to 500 ℃, and charing 1h stops heating, be cooled to room temperature after, take out the solid material, spend deionised water to pH value 6.5, dry or dry naturally, promptly get how mesoporous tomato bar active carbon.
Claims (2)
1. mesoporous tomato bar preparation method of active carbon more than a kind comprises the steps:
(1) with the washing of tomato bar, after oven dry under 80 ℃～100 ℃, pulverize with the plant disintegrating machine, it is subsequent use to cross 45 orders;
(2) press quality than tomato bar: H
4P
2O
7=1: 0.75～1, with H
4P
2O
7Join in the tomato bar particle of step (1) processing, stir while adding, sonicated 15～20min perhaps behind the heat treated 15-20min, leaves standstill 7.5-8h in 90 ℃ of water-baths, gets mixture;
(3) mixture of step (2) being handled well is placed in the Muffle furnace, is warming up to 450～500 ℃, charing 1～1.5h; Stop heating, be cooled to room temperature after, take out the solid material; Spend deionised water to pH value 6.5～7.0, the oven dry or dry naturally, promptly get how mesoporous tomato bar active carbon.
2. as claimed in claim 1 how mesoporous tomato bar preparation method of active carbon is characterized in that step is following:
(1) with the washing of tomato bar, after oven dry under 100 ℃, pulverize with the plant disintegrating machine, cross 45 mesh sieves, subsequent use;
(2) press quality than tomato bar: H
4P
2O
7=1: 1, with H
4P
2O
7Join in the tomato bar particle of step (1) processing, stir while adding, sonicated 15min perhaps behind the heat treated 15min, leaves standstill 8h in 90 ℃ of water-baths, gets mixture;
(3) mixture of step (2) being handled well is placed in the Muffle furnace, is warming up to 450 ℃, charing 1h; Stop heating, be cooled to room temperature after, take out the solid material; Spend deionised water to pH value 6.5-7.0, the oven dry or dry naturally, promptly get how mesoporous tomato bar active carbon.
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| CN 201110315217 CN102423690B (en) | 2011-10-17 | 2011-10-17 | Preparation method of mesoporous tomato stem active carbon |
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| CN 201110315217 CN102423690B (en) | 2011-10-17 | 2011-10-17 | Preparation method of mesoporous tomato stem active carbon |
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| CN102423690B CN102423690B (en) | 2013-06-12 |
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Cited By (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 |
| CN105480974A (en) * | 2016-01-15 | 2016-04-13 | 山东大学 | 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 |
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| 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 |
Cited By (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 |
| CN105480974A (en) * | 2016-01-15 | 2016-04-13 | 山东大学 | 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 |
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| CN102423690B (en) | 2013-06-12 |
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