CN103420369A - Preparation method of active carbon by adopting zinc chloride activated loofah sponge - Google Patents
Preparation method of active carbon by adopting zinc chloride activated loofah sponge Download PDFInfo
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- CN103420369A CN103420369A CN2012101582706A CN201210158270A CN103420369A CN 103420369 A CN103420369 A CN 103420369A CN 2012101582706 A CN2012101582706 A CN 2012101582706A CN 201210158270 A CN201210158270 A CN 201210158270A CN 103420369 A CN103420369 A CN 103420369A
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- luffa
- vegetable sponge
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- gac
- sponge
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Abstract
The invention discloses a preparation method of active carbon by adopting zinc chloride activated loofah sponge. The preparation method comprises following steps: impregnating loofah sponges in zinc chloride, and then subjecting the loofah sponges to processes of drying, charring, activating, washing, and drying to obtain active carbon. The prepared active carbon has an amorphous carbon structure, which is mainly composed of micropores, and has a strong absorbing ability of iodine and methylene blue. The method takes loofah sponge as the raw material to prepare active carbon, enlarges the raw material source of active carbon, and provides a valuable way for the comprehensive utilization of loofah sponge.
Description
Technical field
The invention belongs to the preparation field of gac, particularly a kind of Vegetable Sponge of Luffa prepares the method for high absorption property gac.
Background technology
After entering 21 century, environment adsorbing materials is just towards the future development of " high absorption, multi-functional, controlledization, low cost ", and the preparation and application of wood activated charcoal more and more come into one's own.At present, the shell of each kind of plant, rhizome and shell are the important raw and processed materials for preparing wood activated charcoal, and, adopt these starting material not only can prepare moderate performance, cheap gac also solves that wastes of crops is burnt and the problem that causes environmental pollution simultaneously.At present, the raw material for preparing wood activated charcoal mainly contains the plant refuses such as coconut husk, corn cob, rice husk, Semen Crataegi.
Sponge gourd is a kind of farm crop in a large amount of plantations of China, and output is very high.Vegetable Sponge of Luffa is the vascular bundle in the sponge gourd fruit, and wherein Zhejiang Cixi Vegetable Sponge of Luffa goods account for more than 80% of world market share, can realize the more than one hundred million units of the output value every year.Vegetable Sponge of Luffa three major polymers: cellulose, xylogen, the ash composition that grades, it has unique porousness physical structure and good physical strength, has the advantages such as toughness is strong, acid-proof alkaline is good.At present, China mainly concentrates on the extraction of polysaccharide and glycoside etc. to the research of Vegetable Sponge of Luffa and application, and natural loofah not only has higher pharmaceutical use, and can be used as water treatment filler, matrix material raw material, sorbent material etc. and apply in industry.Vegetable Sponge of Luffa contains higher holocellulose (87.47%), and lower ash content (0.56%) is conducive to preparation and the application of gac.
Simultaneously, along with the shortage of the Nonrenewable resources such as coal and the havoc of forestry, the starting material of producing gac are deficient gradually, and therefore, the renewable resources of development of new substitutes the materials such as coal, trees and prepares the inexorable trend that gac is future development.The footwear Litters such as the cloth shoes that the waste residue of Retinervus Luffae Fructus extract, useless filler and the natural loofah of take are raw material, slippers, shoe-pad all can be used for producing gac, not only can reduce depending on unduly coal and the forest reserves, provide a new comprehensive Utilization Ways but also can be Vegetable Sponge of Luffa, have very important significance.
Summary of the invention
The invention provides a kind of preparation method who adopts the Vegetable Sponge of Luffa gac of zinc chloride activation.The method that zinc chloride activation prepares the Vegetable Sponge of Luffa gac comprises the following steps:
1) pre-treatment: by the Vegetable Sponge of Luffa drying, then be crushed to 10～100 orders;
2) dipping: by the Vegetable Sponge of Luffa after drying and crushing with 10～95
oLiquor zinci chloridi under C soaks 2～24 hours;
3) dry: the Vegetable Sponge of Luffa after soaking is put under 45～165 ℃ of conditions of baking oven and dried;
4) charing, activation: the Vegetable Sponge of Luffa after soak drying is placed in to box atmosphere furnace and is activated, under nitrogen protection with 5～20
oC/min is warming up to 250～650
oC, soaking time is 10～200 minutes, takes out after then being cooled to normal temperature;
5) washing, dry: 0.5～5mol/L salt acid soak 1～25 minute for the Vegetable Sponge of Luffa after charing, activation, then with pure water wash to pH be 6.5～7.0, then 105～110
oC is dried, and gets final product to obtain zinc chloride-Vegetable Sponge of Luffa gac.
Drying in step 1) refers in baking oven in 105～110
oC is dried.
Step 2) in, liquor zinci chloridi concentration used is 5～40g/L, and liquor zinci chloridi volume (ml) is 5:1～20:1 with Vegetable Sponge of Luffa quality (g) ratio.
The present invention be take Vegetable Sponge of Luffa as raw material, belongs to agriculture byproduct, Sustainable development resource, has the following advantages:
1. Vegetable Sponge of Luffa is easy to a large amount of collections, can reduce preparation cost;
2. with other wood materials, compare, Vegetable Sponge of Luffa has certain snappiness, and pharmaceutical chemicals easily enters Vegetable Sponge of Luffa inside, causes that Vegetable Sponge of Luffa easily dewaters, decarburization;
3. the gac that this method makes has abundant micropore and macroporous structure.
Embodiment
The method that zinc chloride activation prepares the Vegetable Sponge of Luffa gac comprises the following steps:
Vegetable Sponge of Luffa is removed to seed, clean, dry, being crushed to granularity is 20 order left and right.75
oSoak after 5 hours 60 in the liquor zinci chloridi of the 10g/L of C
oC is dried.Then put into crucible, be placed in box atmosphere furnace, under nitrogen protection, with 15
oC/min is warming up to 450
oC, be incubated 60 minutes; Sample 5mol/L hydrochloric acid cleaning by after activation, then be washed till neutrality with pure water, then slowly boils 5 min, after filtration in 110
oDry 12h under the condition of C, obtain gac.
Under this method, the gac yield of preparation is 29.07%, and iodine and methylene blue adsorption value are respectively 819.45mg/g, 165.43mg/g, and the BET specific surface area is 1020m
2/ g.
Claims (5)
1. one kind adopts the zinc chloride activation Vegetable Sponge of Luffa to prepare gac, it is characterized in that, the preparation of Vegetable Sponge of Luffa gac adopts zinc chloride activation, and the method that zinc chloride activation prepares the Vegetable Sponge of Luffa gac comprises the following steps:
1) pre-treatment: by the Vegetable Sponge of Luffa drying, then be crushed to 10～100 orders;
2) dipping: by the Vegetable Sponge of Luffa after drying and crushing with 10～95
oLiquor zinci chloridi under C soaks 2～24 hours;
3) dry: the Vegetable Sponge of Luffa after soaking is put under 45～165 ℃ of conditions of baking oven and dried;
4) charing, activation: the Vegetable Sponge of Luffa after soak drying is placed in to box atmosphere furnace and is activated, under nitrogen protection with 5～20
oC/min is warming up to 250～650
oC, soaking time is 10～200 minutes, takes out after then being cooled to normal temperature;
5) washing, dry: 0.5～5mol/L salt acid soak 1～25 minute for the Vegetable Sponge of Luffa after charing, activation, then with pure water wash to pH be 6.5～7.0, then 105～110
oC is dried, and gets final product to obtain zinc chloride-Vegetable Sponge of Luffa gac.
2. the preparation method of Vegetable Sponge of Luffa gac according to claim 1, is characterized in that step 2) in liquor zinci chloridi concentration used be 5～40g/L, liquor zinci chloridi volume (ml) and Vegetable Sponge of Luffa quality (g) are than being 5:1～20:1.
3. the preparation method of Vegetable Sponge of Luffa gac according to claim 1, is characterized in that, the bake out temperature of the Vegetable Sponge of Luffa after step 3) is soaked is 45～165 ℃.
4. the preparation method of Vegetable Sponge of Luffa gac according to claim 1, is characterized in that, the Vegetable Sponge of Luffa activation heat-up rate after drying in step 4) is 5～20
oC/min, rise to 250～650
oBe incubated 10～200 minutes after C.
5. the preparation method of Vegetable Sponge of Luffa gac according to claim 1, it is characterized in that, the washing methods of Vegetable Sponge of Luffa after charing in step 5), activation is: at first use 0.5～5mol/L salt acid soak 1～25 minute, then with pure water wash to pH be 6.5～7.0.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2012101582706A CN103420369A (en) | 2012-05-22 | 2012-05-22 | Preparation method of active carbon by adopting zinc chloride activated loofah sponge |
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| CN2012101582706A CN103420369A (en) | 2012-05-22 | 2012-05-22 | Preparation method of active carbon by adopting zinc chloride activated loofah sponge |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104108713A (en) * | 2014-07-25 | 2014-10-22 | 哈尔滨工业大学深圳研究生院 | Preparation methods and application of porous carbon from towel gourd vegetable sponge and composite material of porous carbon |
| CN107128898A (en) * | 2017-06-27 | 2017-09-05 | 上海应用技术大学 | A kind of preparation method of day trailing plants muscle nitrogen-doped carbon nano material |
| CN107151015A (en) * | 2017-06-27 | 2017-09-12 | 上海应用技术大学 | A kind of preparation method of luffa nitrogen-doped carbon nano material |
| CN107502240A (en) * | 2017-09-07 | 2017-12-22 | 滁州市光威化工有限公司 | A kind of reconstituted tobacoo adhesive and preparation method with adsorption filtration effect |
| CN108423675A (en) * | 2018-03-02 | 2018-08-21 | 河南工程学院 | The preparation method of high adsorption rate activated carbon |
| CN109205620A (en) * | 2018-11-16 | 2019-01-15 | 大连理工大学 | A kind of carbon bionic nano material and preparation method |
| CN113929093A (en) * | 2021-11-02 | 2022-01-14 | 安徽农业大学 | Loofah sponge carbon powder, loofah sponge carbon-based foaming material, application of loofah sponge carbon-based foaming material and pillow |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101121512A (en) * | 2007-04-29 | 2008-02-13 | 武汉理工大学 | Preparation method for plant active carbon fibre column |
| CN101249961A (en) * | 2008-03-11 | 2008-08-27 | 山东大学 | Technique for preparing active carbon by Cucurbitaceae plants |
-
2012
- 2012-05-22 CN CN2012101582706A patent/CN103420369A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101121512A (en) * | 2007-04-29 | 2008-02-13 | 武汉理工大学 | Preparation method for plant active carbon fibre column |
| CN101249961A (en) * | 2008-03-11 | 2008-08-27 | 山东大学 | Technique for preparing active carbon by Cucurbitaceae plants |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104108713A (en) * | 2014-07-25 | 2014-10-22 | 哈尔滨工业大学深圳研究生院 | Preparation methods and application of porous carbon from towel gourd vegetable sponge and composite material of porous carbon |
| CN104108713B (en) * | 2014-07-25 | 2016-04-27 | 哈尔滨工业大学深圳研究生院 | A kind ofly come from the porous carbon of Vegetable Sponge of Luffa and the preparation method of matrix material thereof and application |
| CN107128898A (en) * | 2017-06-27 | 2017-09-05 | 上海应用技术大学 | A kind of preparation method of day trailing plants muscle nitrogen-doped carbon nano material |
| CN107151015A (en) * | 2017-06-27 | 2017-09-12 | 上海应用技术大学 | A kind of preparation method of luffa nitrogen-doped carbon nano material |
| CN107502240A (en) * | 2017-09-07 | 2017-12-22 | 滁州市光威化工有限公司 | A kind of reconstituted tobacoo adhesive and preparation method with adsorption filtration effect |
| CN108423675A (en) * | 2018-03-02 | 2018-08-21 | 河南工程学院 | The preparation method of high adsorption rate activated carbon |
| CN109205620A (en) * | 2018-11-16 | 2019-01-15 | 大连理工大学 | A kind of carbon bionic nano material and preparation method |
| CN113929093A (en) * | 2021-11-02 | 2022-01-14 | 安徽农业大学 | Loofah sponge carbon powder, loofah sponge carbon-based foaming material, application of loofah sponge carbon-based foaming material and pillow |
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Application publication date: 20131204 |