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Preparation method and application of chitosan-reduced glutathione polymer

A technology of glutathione and chitosan, applied in the direction of flocculation/sedimentation water/sewage treatment, etc., can solve the problem of inability to meet the needs of treatment, and achieve the effect of good removal effect

Inactive Publication Date: 2015-03-04
HUNAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The latest research shows that conventional single flocculants sometimes cannot meet the needs of treatment, and the treatment effect of composite flocculants is often better than that of single flocculants

Method used

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  • Preparation method and application of chitosan-reduced glutathione polymer

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] (1) at room temperature, add chitosan monomer 0.60g in reaction vessel, add the hydrochloric acid solution of the 1mol / L of 3.0mL and make chitosan fully swell;

[0023] (2) Add 50.0 mL of deionized water to fully dissolve;

[0024] (3) At room temperature, take 0.50 g of 1-ethyl-3-(3-dimethylaminopropyl) carboimide hydrochloride, 0.50 g of N-hydroxysuccinimide, and reduced glutathione 0.04g, fully dissolved with 5.0mL of deionized water respectively, added to the chitosan solution in turn, and the solution was mixed evenly;

[0025] (4) The pH value of the reaction system is adjusted to 5.0;

[0026] (5) The temperature of the reaction is controlled at 32° C., heated in a water bath;

[0027] (6) While heating in a water bath, continue the mechanical stirring reaction for 3 hours, and the rotating speed is 210r / min;

[0028] (7) After the reaction, the liquid product obtained is chitosan-reduced glutathione polymer.

Embodiment 2

[0030] (1) at room temperature, add chitosan monomer 0.60g in reaction vessel, add the hydrochloric acid solution of the 1mol / L of 3.0mL and make chitosan fully swell;

[0031] (2) Add 50.0 mL of deionized water to fully dissolve;

[0032] (3) At room temperature, take 0.50 g of 1-ethyl-3-(3-dimethylaminopropyl) carboimide hydrochloride, 0.50 g of N-hydroxysuccinimide, and reduced glutathione Put 0.04g into the same beaker, fully dissolve it with 15.0mL deionized water, then add it into the chitosan solution, and mix the solution evenly;

[0033] (4) The pH value of the reaction system is adjusted to 5.0;

[0034] (5) Place the reaction vessel in a microwave reactor, control the microwave power to 20W, and take it out after 1 minute of reaction;

[0035] (6) The reaction vessel is placed in a water bath, and the temperature is controlled at 35°C;

[0036] (7) While heating in a water bath, continue the mechanical stirring reaction for 5 hours, and the rotating speed is 200r...

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Abstract

The invention discloses a preparation method and application of a chitosan-reduced glutathione polymer. The preparation method comprises the following steps: firstly, swelling chitosan in dilute acid; secondly, adding de-ionized water for fully dissolving chitosan; thirdly, adding an active agent, namely 1-ethyl-3-(3-dimethylaminopropyl)carboimide hydrochloride, a protective agent, namely N-hydroxysuccinimide and a reaction monomer, namely reduced glutathione, into a reaction container, uniformly mixing, adjusting the pH value of a reaction system to be proper, and reacting at a certain reaction temperature to obtain a liquid-state polymerization product. When the liquid-state polymerization product is applied to treatment of Cr<6+> ions and Hg<2+> ions in a water body, a relatively good treatment effect is achieved. The preparation process is simple; the prepared product can be used in the industry of heavy metal wastewater treatment.

Description

technical field [0001] The invention belongs to the technical field of preparation of macromolecular compounds and environmental protection engineering, and in particular relates to a preparation method and application of a chitosan-reduced glutathione polymer. Background technique [0002] At present, our country is in the stage of rapid economic development, and the accompanying water environment problems are becoming increasingly prominent. Especially with the rapid development of industries such as mineral development and mechanical processing, a large amount of heavy metals have entered the water body, causing serious pollution to the water environment. Therefore, the removal of heavy metals in the water environment is the focus of research in the field of water treatment in recent years. Among the many water treatment processes, the flocculation process has many advantages such as simple process, convenient operation, and low treatment cost. It is one of the important...

Claims

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Application Information

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IPC IPC(8): C08B37/08C02F1/56
Inventor 张鹏张伟任伯帜朱国成丁文杰
Owner HUNAN UNIV OF SCI & TECH
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