RGO-beta-CD hydrogel adsorption material and preparation method thereof

An adsorption material and hydrogel technology, applied in the field of environmental science, can solve the problems of difficult separation and recycling of adsorbents, and achieve the effect of simple and feasible preparation process, green preparation process and low price

Inactive Publication Date: 2017-09-22
SHANGHAI APPLIED TECHNOLOGIES COLLEGE
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to solve technical problems such as difficult separation and difficult recycling of existing adsorbents, the purpose of the present invention is to prepare a RGO-β-CD material

Method used

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  • RGO-beta-CD hydrogel adsorption material and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A kind of RGO‐β‐CD material is prepared by the following steps:

[0019] 60mL of 2mg / mL graphite oxide solution was ultrasonically treated for 2h to prepare graphene oxide, and 1.2g of β-cyclodextrin (mass ratio of β-cyclodextrin to graphene oxide was 10:1) and 1.2mL of ammonia water (mass fraction 25%), and stirred at room temperature for 0.5h. Add 120 mg of ascorbic acid (mass ratio to graphene oxide: 1:1), and stir at room temperature for 0.5 h. Take 2.5mL of the above solution in a 5mL beaker, place it in a water bath, and react in a water bath at 90°C for 12h. RGO-β-CD hydrogel can be prepared by immersing in its ionized water for two days and changing the water several times during the period. figure 1 It is the infrared spectrogram of the RGO-β-CD adsorption material that embodiment 1 obtains.

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Abstract

The invention discloses an RGO-beta-CD hydrogel adsorption material and a preparation method thereof. The RGO-beta-CD hydrogel adsorption material is a hydrogel formed by cyclodextrin and graphene oxide. The preparation method specifically comprises the following steps that after a graphite oxide solution is subjected to ultrasonic treatment to prepare graphene oxide, beta-cyclodextrin and 25wt% ammonia water are added, and then stirring is conducted at room temperature for 20-40 minutes; then ascorbic acid is added, stirring is conducted at room temperature for 20-40 minutes, and a mixed solution is obtained; finally, the mixed solution is subjected to a water-bath reaction at 85-95 DEG C for 10-14 hours and is soaked with ionic water after the reaction is finished, water changing is conducted for several times during soaking, and the RGO-beta-CD hydrogel is prepared. The prepared RGO-beta-CD hydrogel adsorption material is simple in preparation process, low in cost, and suitable for large-scale and mass production, and the conditions,are controlled easily.

Description

technical field [0001] The invention relates to an RGO-β-CD hydrogel adsorption material and a preparation method thereof, belonging to the field of environmental science and technology. Background technique [0002] Water is one of the most precious resources for human beings, and water breeds human beings. However, human activities and the development of industrialization have affected the quality of various water bodies, threatening human health and destroying the ecological balance. Facts have proved that the adsorption method is a simple, low-cost, and effective method. Contents of the invention [0003] In order to solve technical problems such as difficult separation and difficult recycling of existing adsorbents, the purpose of the present invention is to prepare a RGO-β-CD material. The invention utilizes the property that graphene oxide is easy to form gel, connects cyclodextrin to graphene oxide to form hydrogel, and the adsorbent has low cost, is safe and non...

Claims

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Application Information

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IPC IPC(8): B01J20/22B01J20/28B01J20/30C01B32/194
CPCB01J20/22B01J20/20B01J20/28047C01P2002/82C01P2004/30
Inventor 于飞陈德贤李勇
Owner SHANGHAI APPLIED TECHNOLOGIES COLLEGE
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