Bi2WO6 with ordered macrostructure and preparation method thereof

Abstract

The invention discloses Bi2WO6 with an ordered macrostructure and a preparation method thereof. The Bi2WO6 with an ordered macrostructure is a functional material which is compounded of an ordered macro substrate material with microparticles; in other words, a layer of microparticles Bi2WO6 which is 2.0 microns thick is cured on the surface of the ordered macro substrate material; and the ordered macro substrate material is SiO2 fibers or a honeycomb ceramic body. The preparation method of the Bi2WO6 comprises the following steps of: firstly, preparing carbon nanofibers on the ordered macro substrate material by a chemical vapor deposition method, and then preparing the Bi2WO6 with the ordered macrostructure by an alcohol-thermal method with the carbon naofibers as a template, wherein the prepared Bi2WO6 has the characteristics of large surface, compact structure and porosity. The Bi2WO6 with the ordered macrostructure provided by the invention is good in orientation and controllable in morphology, and thereby can be specially applied. The preparation method of the Bi2WO6 has the characteristics of low production cost, high repeatability and the like.

Description

Technical field [0001] The invention involves a BI with an orderly macro structure 2 WO 6 And its preparation method is the field of inorganic materials. Background technique [0002] In recent years, the problem of energy crisis and environmental pollution has increasingly attracted great attention from the country. Study and development of high -performance optical response photocatalysts are expected to play a positive role in the field of environmental purification, which is of great significance.Current, BI 2 WO 6 The composite oxides have caused great interest in researchers with their unique electronic structure, excellent visible light absorption capacity and high organic degradation capabilities, which has become one of the research hotspots of new photocatalytic materials. [0003] BI 2 WO 6 There are many ways to prepare composite oxides, such as: high temperature solid -phase, liquid -phase precipitation method, ultrasonic synthesis method, water heat method, spray dr...

AI Technical Summary

Problems solved by technology

Using carbon nanofiber template technology, Bi can be regulated and prepared by alcothermal method 2 WO 6 Composite oxides, this method can also realize the Bi 2 WO 6 The composite oxide is solidified on the macroscopic matrix material with ordered structure, and by optimizing the preparation conditions, a new type of functional material with a high-quality ordered macroscopic matrix and microscopic particles can be obtained. This type of material will have relatively excellent optical properties. Catalytic performance can avoid various disadvantages caused by the use of traditional powder catalysts, so it has more favorable application value, and there is no report on this work so far

Images