TiO2 photocatalyst with mesoporous structure, as well as preparation method and applications of photocatalyst

Abstract

The invention discloses a TiO2 photocatalyst with mesoporous structure, as well as a preparation method and applications of the photocatalyst. The TiO2 photocatalyst with the mesoporous structure can be prepared by adopting a water phase volatilization and induction self-assembling method, the aperture of the prepared TiO2 photocatalyst ranges from 6.6nm to 10.7nm, and the specific surface area of the prepared TiO2 photocatalyst ranges from 72.2m<3> / g to 40.4m<3> / g. The preparation method of the photocatalyst is simple, and mild and clean in conditions, as well as basically free from environmental pollution in the preparation process. The catalyst can be widely applied in the fields of hydrogen production by using photocatalysis, photooxidization of NO, a solar cell, a lithium ion battery, antibacterial and photocatalytic pollutant treatment, and the like.

Description

technical field [0001] The invention relates to the technical field of catalysts, in particular to a TiO with a mesoporous structure 2 Photocatalyst and its preparation method and application. Background technique [0002] Since Kresge et al. of Mobil Corporation of the United States first reported the synthesis of MCM-41 series mesoporous materials in 1992, mesoporous materials have been characterized by their small pore size, continuous adjustment within a certain range, and large specific surface area. It has potential application value in catalysis, adsorption, separation, light, electricity, magnetism and many other fields. [0003] At present, a large number of research results have been obtained on silicon-based mesoporous materials, and non-silicon-based mesoporous materials have also become a research hotspot in recent years. Transition metal oxides, especially mesoporous TiO 2 Materials have the advantages of large specific surface area, good chemical stability,...

AI Technical Summary

Problems solved by technology

However, the currently widely used preparation of mesoporous TiO 2 Most of the synthetic preparation researches use expensive analytically pure organic titanium (tetrabutyl titanate or titanium alkoxide) as raw materials, and mostly use the Sol-Gel process route, and the synthesis is mostly in volatile organic solvents (ethanol, tetrahydrofuran, acetonitrile, etc. ), not friendly to the environment

Synthesis of Mesoporous TiO Using Inorganic Titanium Source and Aqueous Clean Volatility-Induced Self-Assembly 2 There are few literature reports on photocatalysts, and the use of titanium trichloride as the titanium source is even rarer

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