CN104226265A - Cantaloupe vine adsorption material and preparation method thereof - Google Patents
Cantaloupe vine adsorption material and preparation method thereof Download PDFInfo
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- CN104226265A CN104226265A CN201410408344.6A CN201410408344A CN104226265A CN 104226265 A CN104226265 A CN 104226265A CN 201410408344 A CN201410408344 A CN 201410408344A CN 104226265 A CN104226265 A CN 104226265A
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Abstract
The invention discloses a preparation method of a cantaloupe vine adsorption material and belongs to the field of biological adsorption. The method comprises the steps: selecting cantaloupe vines as a raw material, firstly, removing miscellaneous leaves and roots, cleaning with tap water, washing with distilled water, baking and mincing; then, carrying out enzymolysis on starch with amylase, removing other impurity ingredients from the cantaloupe vines with a diluted NaOH or KOH solution, and then, neutralizing with a dilute H2SO4 solution; then, uniformly mixing the treated cantaloupe vines and urea according to the mass ratio of 1: 1, and reacting for 5-10 hours under the condition of being submersed by deionized water; finally, filtrating the solution, drying in the air, cleaning for 3-4 times with deionized water or 95% alcohol, and then, baking, thereby obtaining the cantaloupe vine adsorption material. The adsorption material is simple in preparation method and low in cost, is environment-friendly and has broad application prospects.
Description
Technical field
The present invention relates to a kind of muskmelon rattan sorbing material, its preparation method and application belong to biological adsorption field.
Background technology
Along with industrialized development, China in heavy metal exploitation, smelt, in process, cause many heavy metals as lead, mercury, cadmium, cobalt etc. enter air, water, soil causes serious environmental pollution.Unlike heavy metal, there is enriching with the pollution of other organic compound, be difficult to degrade in the environment.Even if the heavy metal concentration contained through the water of heavy metal pollution is very little, also can accumulate in algae, be adsorbed by fish and shellfish body surface, produce food chain and concentrate.Heavy metal in human body can and protein and various enzyme there is strong interaction, make them lose activity, also may enrichment in some organ of human body, if exceed the tolerant limit of human body, human body acute poisoning, subacute poisoning, slow poisoning etc. can be caused, people is known from experience and causes very large harm.
The method being commonly used to process heavy metal polluted waste water at present has a lot.Wherein chemical method has: electrolytic reduction, advanced oxidation processes; Physical method has: flocculence and membrane separation process etc., although these methods play certain positive role to process heavy metal pollution process.But because these methods or cost is high, or treatment effeciency is low, is difficult to industrially use on a large scale, we need find a kind of cheap and easy to get for this reason, can widely used process method for waste water.And the heavy metal utilizing crops sorbing material to adsorb in waste water is a kind of process for treating heavy-metal waste water with development prospect.
Muskmelon rattan is the rattan of cucurbitaceous plant muskmelon, and it is as a kind of agricultural waste material, and resource is very abundant.But research and development are considerably less at present, often go out of use or burn, causing serious environmental pollution and the wasting of resources.Exploitation muskmelon rattan sorbing material is significant to developing new biological adsorption material and realizing sustainable development.Containing abundant cellulose in muskmelon rattan, crude fiber content is up to 26% ~ 32%.Hydroxyl on glucose basic ring in cellulose chain can carry out esterification, enzyme and copolyreaction, therefore can dissolve the non-cellulose components in muskmelon rattan with the acid of dilution or alkali, is then prepared into by modification
onethe heavy-metal adsorption material of kind of low cost, the sorbing material prepared by the method is had the following advantages: one is abundant raw material, cheap; Two is environmentally friendly; Three is that reaction process is simple and direct, consuming time short.
Summary of the invention
The object of this invention is to provide a kind of muskmelon rattan sorbing material and preparation method thereof.
For realizing this purpose, the present invention is achieved through the following technical solutions:
Adopt muskmelon rattan as raw material, prepare a kind of low-cost bio sorbing material through alkalization, esterification technique.
A preparation method for muskmelon rattan sorbing material, comprises the steps:
(1) select sturdy muskmelon rattan, except impurity elimination leaf, assorted root, then clean with running water, removing earth and dust, finally dry in the air with distilled water and wash, after dry to constant weight under 70-80 DEG C of condition;
(2) the muskmelon rattan chopping of will dry, soaks in deionized water;
(3) add the amylase of the 0.01-0.05mol/L activated, under 35-50 DEG C of condition, react 2-3 hour;
(4) add NaOH or the KOH solution of 0.05-0.1mol/L, reaction 1-2 hour, then use rare H
2sO
4solution neutralizes;
(5) will (4) filter, dry by middle gained solution, and the filter residue dried be mixed with the mass ratio of urea by 1:1, then adds deionized water submergence, reaction 5-10 hour;
(6) will (5) middle solution filtration dry, remove residual ionic liquid 3-4 time by deionized water or with the alcohol washes of 95% afterwards, namely clean post-drying obtains a kind of muskmelon rattan sorbing material.
The present invention has following advantages and characteristic:
(1) compared with prior art, adopt the mode of enzyme degraded, the starch of muskmelon rattan is carried out enzymolysis, not destroying again it has adsorbing cellulose components simultaneously;
(2) this adsorbent excellent effect, effectively can adsorb various heavy;
Simple, the raw material sources of this sorbing material manufacture method extensively, can produce in a large number;
(4) this kind of sorbing material is environmentally friendly, can not cause secondary pollution.
Detailed description of the invention
Embodiment one:
Select sturdy muskmelon rattan, except impurity elimination leaf, assorted root, then clean with running water, removing earth and dust, finally dry in the air with distilled water and wash, after dry to constant weight under 70 DEG C of conditions; By the muskmelon rattan chopping of drying, soak in deionized water; Add the amylase of the 0.01mol/L activated, under 35 DEG C of conditions, carry out enzymolysis 2 hours; Add the NaOH solution of 0.05mol/L again, react 1 hour, use rare H afterwards
2sO
4solution neutralizes, and refilters, dries, mixed by the filter residue dried with the mass ratio of urea by 1:1, then add deionized water submergence reactant, react 5 hours; Again filter and dry, afterwards by the ionic liquid that washed with de-ionized water 3 times removing is residual, finally use the alcohol washes 2 times of 95%, namely clean post-drying obtains a kind of muskmelon rattan sorbing material.
Embodiment two:
Select sturdy muskmelon rattan, except impurity elimination leaf, assorted root, then clean with running water, removing earth and dust, finally dry in the air with distilled water and wash, after dry to constant weight under 80 DEG C of conditions; By the muskmelon rattan chopping of drying, soak in deionized water; Add the amylase of the 0.05mol/L activated, under 50 DEG C of conditions, carry out enzymolysis 3 hours; Add the KOH solution of 0.1mol/L again, react 2 hours, use rare H afterwards
2sO
4solution neutralizes, and refilters, dries, mixed by the filter residue dried with the mass ratio of urea by 1:1, then add deionized water submergence reactant, react 10 hours; Again filter and dry, afterwards by the ionic liquid that washed with de-ionized water 3 times removing is residual, finally use the alcohol washes 2 times of 95%, namely clean post-drying obtains a kind of muskmelon rattan sorbing material.
Embodiment three:
Select sturdy muskmelon rattan, except impurity elimination leaf, assorted root, then clean with running water, removing earth and dust, finally dry in the air with distilled water and wash, dry to constant weight under 80 DEG C of conditions; Take muskmelon rattan 100kg and smashed with beating crusher, dropping in 3 tons of health storage tanks, and inject appropriate amount of deionized water in tank, add the 0.05mol/L amylase solution 2L activated, react 2 hours under 50 DEG C of conditions, then add the 0.1mol/L KOH solution of 5L, react 1 hour, then use H
2sO
4solution neutralizes, and filters, then dry in inciting somebody to action with gained liquid sheet frame compressor; Again squeeze into after the filter residue dried is mixed by the mass ratio of 1:1 with urea in 3 tons of sanitary cans, and inject deionized water and react 8 hours, filter, use the ionic liquid that washed with de-ionized water 4 removings are residual afterwards, after cleaning, muskmelon rattan sorbing material is dried and is obtained in drying.
Claims (4)
1. a preparation method for muskmelon rattan sorbing material, is characterized in that, this preparation method carries out according to the following steps:
(1) select sturdy muskmelon rattan, except impurity elimination leaf, assorted root, then clean with running water, removing earth and dust, finally dry in the air with distilled water and wash, after dry to constant weight under 70-80 DEG C of condition;
(2) the muskmelon rattan chopping of will dry, soaks in deionized water;
(3) add activated amylase, under 35-50 DEG C of condition, react 2-3 hour;
(4) add NaOH or the KOH solution of 0.05-0.1mol/L, reaction 1-2 hour, then use rare H
2sO
4solution neutralizes;
(5) will (4) filter, dry by middle gained solution, and the filter residue dried be mixed with the mass ratio of urea by 1:1, then adds deionized water submergence reactant, reaction 5-10 hour;
(6) will (5) middle solution filtration dry, remove residual ionic liquid 3-4 time by deionized water or with the alcohol washes of 95% afterwards, namely clean post-drying obtains a kind of muskmelon rattan sorbing material.
2. the preparation method of a kind of muskmelon rattan sorbing material according to claim 1, is characterized in that, step (3) in diastatic solubility used be 0.01-0.05mol/L.
3. the preparation method of a kind of muskmelon rattan sorbing material according to claim 1, is characterized in that, step (4) in rare H used
2sO
4the mass fraction of solution is lower than 15%.
4. the preparation method of a kind of muskmelon rattan sorbing material according to claim 1, is characterized in that, step (5) in, when adding deionized water after filter residue mixes with urea, stir rapidly with agitator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410408344.6A CN104226265A (en) | 2014-08-19 | 2014-08-19 | Cantaloupe vine adsorption material and preparation method thereof |
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| CN201410408344.6A CN104226265A (en) | 2014-08-19 | 2014-08-19 | Cantaloupe vine adsorption material and preparation method thereof |
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| CN104226265A true CN104226265A (en) | 2014-12-24 |
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| CN201410408344.6A Pending CN104226265A (en) | 2014-08-19 | 2014-08-19 | Cantaloupe vine adsorption material and preparation method thereof |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070071666A1 (en) * | 2005-04-15 | 2007-03-29 | Sarah Larsen | Synthesis and use of nanocrystalline zeolites |
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2014
- 2014-08-19 CN CN201410408344.6A patent/CN104226265A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070071666A1 (en) * | 2005-04-15 | 2007-03-29 | Sarah Larsen | Synthesis and use of nanocrystalline zeolites |
Non-Patent Citations (2)
| Title |
|---|
| UMAR FAROOQ等: "Effect of modification of environmentally friendly biosorbent wheat(Triticum aestivum) on the biosoprtion removal of cadmium(II) ions from aqueous solution", 《CHEMICAL ENGINEERING JOURNAL》 * |
| 刘延奇等: "酶催化对玉米淀粉结构的影响研究", 《粮食与饲料工业》 * |
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Application publication date: 20141224 |