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Composite material and preparation method thereof

A composite material and cyclodextrin technology, applied in chemical instruments and methods, and other chemical processes, can solve problems such as water resource reuse, troublesome operation and management, and high operating costs, and achieve fast adsorption, Improved uniformity and durability, wide application effect

Active Publication Date: 2015-01-21
桐乡市建春塑业股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] There are many methods to control water pollution. The traditional ones include chemical precipitation method, redox method, ferrite method, electrolysis method, evaporation concentration method, ion exchange resin method, etc. Troublesome, and will produce secondary pollution and can not solve the problem of water resource reuse and so on

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Slowly add 0.85g of amination-enhanced modified straw, 0.05g of graphene oxide, and 0.1g of β-cyclodextrin into deionized water with a bath ratio of 10ml, ultrasonically treat for 2 hours, and at a temperature of -50°C at a speed of The temperature was raised to room temperature at 1°C / min, and then dried for 12 hours to prepare the amination-enhanced modified straw / graphene oxide / cyclodextrin composite material.

Embodiment 2

[0018] Slowly add 0.9g of amination-enhanced modified straw, 0.05g of graphene oxide, and 0.05g of β-cyclodextrin into deionized water with a bath ratio of 20ml, ultrasonically treat for 10h, and at a temperature of -30°C at a speed of The temperature was raised to room temperature at 1°C / min, and then dried for 10 hours to prepare the amination-enhanced modified straw / graphene oxide / cyclodextrin composite.

Embodiment 3

[0020] Slowly add 0.8g of amination-enhanced modified straw, 0.1g of graphene oxide, and 0.1g of β-cyclodextrin into deionized water with a bath ratio of 15ml, ultrasonically treat for 20h, and at a temperature of -20°C at a speed of The temperature was raised to room temperature at 1°C / min, and then dried for 24 hours to prepare the amination-enhanced modified straw / graphene oxide / cyclodextrin composite.

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Abstract

The invention relates to a composite material and a preparation method thereof. The preparation method comprises the steps of slowly adding the following components in parts by weight: 80-90 parts of amination-enhanced modified straw, 1-10 parts of oxidized graphene and 1-10 parts of cyclodextrin into deionized water with the bath ratio of 1 to (10-20), and carrying out ultrasonic treatment for 1-24h; and then, carrying out freeze drying to obtain the amination-enhanced modified straw / oxidized graphene / cyclodextrin composite material. According to the invention, the amination-enhanced modified straw / oxidized graphene / cyclodextrin composite material is prepared by loading oxidized graphene and cyclodextrin on the amination-enhanced modified straw serving as a carrier, and then, carrying out freeze drying. The composite material has the advantages of environmental friendliness, good mechanical property, regular structure, high porosity and adsorption capacity, high adsorption speed, wide application range, simplicity in desorption, reutilization and the like.

Description

technical field [0001] The invention belongs to the technical field of functional materials, in particular to a composite material and a preparation method thereof. Background technique [0002] The amount of crop straw resources in my country ranks first in the world. The sown area of ​​grain in my country is about 113 million hm 2 , the total grain output is 490 million tons, and the total output of corn, wheat and other cereal straws is 500 million tons. Adding the straw of other crops, the annual output of straw is more than 600 million tons. Although 250 million tons are used to make fertilizer and return to the field; 48 million tons are used for industrial raw materials; 180 million tons are used for farmers' living fuel, but there are still 120 million tons of straw remaining, which become domestic garbage or are burned in vain. Crop straw is the largest renewable resource on the earth and an important by-product of crops. Incineration causes a huge waste of resour...

Claims

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Application Information

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IPC IPC(8): B01J20/24B01J20/30
CPCB01J20/24B01J20/30B01J2220/4825B01J2220/4837
Inventor 赵兵
Owner 桐乡市建春塑业股份有限公司
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