Studies on the Preparation and Photocatalytic Performance of Bismuth Ferrite

Xinxin Wang,Yifa Dong,L Duan,A.Z Abdullah

doi:10.1051/e3sconf/202124503078

Abstract

Iron oxide and bismuth oxide powder are synthesized by the liquid phase precipitation method. Then a certain proportion of iron oxide, bismuth oxide and sodium chloride are mixed and ground to prepare the bismuth ferrite precursor by the molten salt method. The bismuth ferrite precursors are calcined at different temperatures to obtain bismuth ferrite photocatalyst. By studying the degradation performance of bismuth oxide, iron oxide and bismuth ferrite photocatalysts for methyl orange dyes, the best conditions for the degradation of methyl orange dyes by bismuth ferrite photocatalysts are found. The experimental results show that the bismuth ferrite prepared by calcining at 750°C has the best degradation. Compared with a single oxide, the photocatalytic performance of bismuth ferrite is better.

Highlights

As energy sources, coal and oil have brought convenience to mankind, but at the same time they have brought great damage to the earth's environment
The results of photocatalysis experiments show that the degradation rate of bismuth ferrite photocatalyst to methyl orange solution could reach 92% under the conditions of ultraviolet light irradiation after 260 min
Methyl orange solution is used as the test substrate to study the effect of different calcination temperatures and different catalysts on the degradation of methyl orange, and the analysis and discussion are carried out in combination with the characterization results

Summary

Introduction

Coal and oil have brought convenience to mankind, but at the same time they have brought great damage to the earth's environment. With the continuous deepening of research, bismuth ferrite nanomaterials have demonstrated their broad application prospects in the field of photocatalysis due to their obvious photocatalytic effects, high efficiency in degrading organics, and easy recycling [6,7,8,9,10,11,12,13,14]. The results of photocatalysis experiments show that the degradation rate of bismuth ferrite photocatalyst to methyl orange solution could reach 92% under the conditions of ultraviolet light irradiation after 260 min.

Results

Conclusion