Method for inducing and synthesizing TiO2-ZnO by adsorbing enzyme on functionalized graphene oxide

A graphene oxide, oxide technology, applied in the field of nanomaterials, biomimetic mineralization
CN103194491AInactive Publication Date: 2013-07-10BEIJING UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING UNIV OF TECH
Publication Date
2013-07-10
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a method for inducing and synthesizing TiO2-ZnO by adsorbing enzyme on functionalized graphene oxide, belonging to the technical fields of organism biomimetic mineralization and nanometer materials. The method comprises the steps of: firstly adsorbing biomacromolecules (lysozyme and Loy) on the functionalized graphene oxide (SG-GO) as a composite template, secondly, inducing an organic titanium {dihydroxybis[2-hydroxypropanoato-o1,o2]-titanate diammonium} precursor water solution for hydrolyzing and producing TiO2 to embed urease therein, and thirdly adding urea at room temperature so as to be decomposed under the action of the Urease, thereby providing a local high-alkaline environment to mineralize the zinc source [Zn(NO3)2] precursor near the urease to obtain a target product TiO2-ZnO binary metal oxide. The urease is embedded in the titanium dioxide, thereby providing favorable conditions for the local high-alkaline environment in the next step of catalyzing urea.
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Description

technical field

[0001] The invention relates to a method of obtaining binary metal oxide (TiO 2 -ZnO), which belongs to the technical field of biomimetic mineralization and the technical field of nanomaterials. Background technique

[0002] With the rapid development of society, the increasingly serious energy supply and demand and environmental pollution have become the bottleneck restricting social development. Therefore, it is urgent to develop new energy sources and invent new materials. However, the traditional method of preparing inorganic materials will cause certain pollution to the environment. Therefore, compared with the traditional method of preparing inorganic materials, biomolecules derived from the concept of biomineralization induce the synthesis of various inorganic materials in vitro under mild conditions. We provide a novel synthetic route that is green and energy-saving. Therefore, researchers hope to use biomolecules (such as proteins (including enzyme...

Claims

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