Preparation method of magnetic functionalized graphene oxide based molecularly imprinted hybrid material
A technology of hybrid materials and molecular imprinting, applied in chemical instruments and methods, alkali metal oxides/hydroxides, inorganic chemistry, etc., can solve problems such as laborious, time-consuming, and low removal efficiency, and achieve easy implementation and convenient separation , the effect of improving the efficiency of use
Active Publication Date: 2013-03-20
TIANJIN POLYTECHNIC UNIV
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[0005] The purpose of the present invention is to overcome the shortcomings of time-consuming, laborious and low removal efficiency in the traditional method of removing estrogen endocrine disruptors, provide a preparation method of magnetically functionalized graphene oxide-based molecularly imprinted hybrid materials, and apply it to Rapid Adsorption and Effective Removal of Estrogenic Endocrine Disruptors in Drinking Water
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[0025] A method for preparing magnetically functionalized graphene oxide-based molecularly imprinted hybrid materials, firstly loading Fe on the surface of graphene oxide by acyl chloride reaction 3 o 4 Magnetic nanoparticles, and then using magnetically functionalized graphene oxide as a carrier, using molecular imprinting technology to synthesize magnetic graphene oxide-based molecularly imprinted hybrid materials on its surface, including the following steps:
[0026] 1) Carboxy functionalized Fe 3 o 4 Preparation of Magnetic Nanospheres
[0027] Synthesis of Fe by pyrolysis 3 o 4 The specific steps of the magnetic nanospheres are as follows: Dissolve 125mmol NaOH into 50ml diethylene glycol, react for 1 hour at 120°C under nitrogen protection, and store the mixture at 70°C; dissolve 40mmol polyacrylic acid and 20mmol FeCl3·6H2O into 80ml After reacting in diethylene glycol at 220° C. for 45 minutes under nitrogen protection, 40 ml of the mixed solution was rapidly inj...
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Abstract
The invention relates to a preparation method of a magnetic functionalized graphene oxide based molecularly imprinted hybrid material. The preparation method comprises the following steps: firstly, loading Fe3O4 magnetic nanoparticles on the surface of graphene oxide by chloroformylation reaction; and synthesizing the magnetic functionalized graphene oxide based molecularly imprinted hybrid material on the surface of the magnetic functionalized graphene oxide serving as a carrier by utilizing a molecular imprinting technology. The prepared magnetic functionalized graphene oxide based molecularly imprinted hybrid material can be used for selectively removing estrogen in drinking water. The preparation method of the magnetic functionalized graphene oxide based molecularly imprinted hybrid material has the advantages that the process is reasonable and easy to implement; when being used for removing endocrine disruptors, the material has good chemical stability and reusability, and active adsorption, identification and separation of the estrogen are easily carried out; and the preparation method has strong magnetic response, preordainment, identity and practicality, and can greatly improve the using efficiency of the molecular imprinting technology and expand the range of molecular imprinting applications.
Description
【Technical field】 [0001] The invention relates to the preparation of molecularly imprinted hybrid materials, in particular to a method for preparing magnetically functionalized graphene oxide-based molecularly imprinted hybrid materials. 【Background technique】 [0002] Drinking water safety is of great significance to human life. With the rapid development of industry and the improvement of people's living standards, many drinking water sources in our country have been polluted to varying degrees, which has deteriorated the quality of water sources and seriously threatened people's health and well-being. Urban water supply system security. Endocrine Disrupting Chemicals (EDCs) is one of the most widely polluted and seriously harmful pollutants, among which estrogens are the most harmful to the human body. Environmental estrogens are generally divided into two types: natural estrogens and synthetic estrogens. There are reports of estrogens detected in major water systems in ...
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IPC IPC(8): C08F212/36C08F220/06C08F2/44C08K9/12C08K3/04C08K3/22C08J9/26B01J20/26B01J20/28B01J20/30
Inventor 李颖黄艳凤张纪梅李苹徐亚东
Owner TIANJIN POLYTECHNIC UNIV
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