Preparation method of magnetic reduced graphene oxide-beta-cyclodextrin adsorption material

An adsorption material, cyclodextrin technology, applied in chemical instruments and methods, adsorption water/sewage treatment, alkali metal oxides/hydroxides, etc. The effect of low cost, green preparation process and low price

Inactive Publication Date: 2018-06-29
SHANGHAI INSTITUTE OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, with the progress and development of industry, it has caused huge pollution to water bodies, and the curre

Method used

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  • Preparation method of magnetic reduced graphene oxide-beta-cyclodextrin adsorption material
  • Preparation method of magnetic reduced graphene oxide-beta-cyclodextrin adsorption material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A magnetic RGO‐β‐CD adsorption material is prepared by the following steps:

[0022] (1) Weigh 500 mg of graphene oxide and dissolve it in a 250 mL volumetric flask, constant volume, and sonicate the above 2 mg / mL graphene oxide for 2 h to prepare a reduced graphene oxide solution.

[0023] (2) 100 mL of the 2 mg / mL reduced graphite oxide solution prepared above was added dropwise with 1 mol / L of FeCl under the condition of magnetic stirring 2 Solution 10ml, and ultrasonic cleaning machine ultrasonic 60min, make it dispersed evenly, get RGO-FeCl 2 Dispersions;

[0024] (3) Add 2 g of β-cyclodextrin and 2 mL of ammonia water to the above mixed solution to adjust the pH, and stir at room temperature for 0.5 h.

[0025] (4) Add 120 mg of ascorbic acid, and sonicate for 15 minutes.

[0026] (5) Take 2.5mL of the above solution in a 5mL beaker, put it in a water bath, and react in a water bath at 90°C for 4h to prepare a magnetic reduced graphene oxide-β-cyclodextrin adso...

Embodiment 2

[0028] A magnetic RGO‐β‐CD adsorption material is prepared by the following steps:

[0029] (1) Weigh 1000mg of graphene oxide and dissolve it in a 250mL volumetric flask, constant volume, and sonicate the above 4mg / mL graphene oxide for 4h to prepare a reduced graphene oxide solution.

[0030] (2) 100mL of the 4mg / mL reduced graphite oxide solution prepared above was added dropwise with 2mol / L of FeCl under the condition of magnetic stirring 2 Solution 10ml, and ultrasonic cleaning machine ultrasonic 60min, make it dispersed evenly, get RGO-FeCl 2 Dispersions;

[0031] (3) Add 4 g of β-cyclodextrin and 2 mL of ammonia water to the above mixed solution to adjust the pH, and stir at room temperature for 1 h.

[0032] (4) Add 240 mg of ascorbic acid, and sonicate for 30 minutes.

[0033] (5) 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 6h to prepare a magnetic reduced graphene oxide-β-cyclodextrin adsorption...

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Abstract

The invention provides a preparation method of a magnetic reduced graphene oxide-beta-cyclodextrin adsorption material. The method includes steps of: performing ultrasonic reduction to the graphene oxide and successively adding a FeCl2 solution, beta-cyclodextrin, ammonia water and ascorbic acid, mixing and uniformly stirring the solution, adding the solution into a container to perform a water bath reaction in a water bath pot at 80-120 DEG C in order to produce the magnetic reduced graphene oxide-beta-cyclodextrin adsorption material. The preparation method has simple process and controllable conditions, is low in cost, and is suitable for large-scale batch production.

Description

technical field [0001] The invention belongs to the field of chemical industry and relates to an adsorption material, in particular to a method for preparing a magnetic adsorption material by using ferrous chloride, graphite oxide and β-cyclodextrin and the like. Background technique [0002] Water is the source of life and a necessity for human survival. However, with the progress and development of industry, it has caused huge pollution to water bodies, and the current shortage of fresh water resources in the world has seriously affected the ecological balance and quality of life. The adsorption method is considered to be one of the most economical and effective water treatment methods in water treatment because of its simple operation method, low cost and high efficiency. The adsorbent involved in the present invention is a powdery solid material combined with magnetic graphene oxide and cyclodextrin. The material has good adsorption performance, is easy to control, and ...

Claims

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Application Information

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IPC IPC(8): B01J20/24B01J20/28C02F1/28B01J20/30
CPCB01J20/06B01J20/20B01J20/24B01J20/28009C02F1/288
Inventor 于飞姚温浩石岩陈德贤王成显倪腾飞张方韩生张海英
Owner SHANGHAI INSTITUTE OF TECHNOLOGY
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