Preparation of Vanadate Nanowire Modified Microspheres and Evaluation of Their Photocatalytic Properties for Toluene in Open System

The modification microspheres of vanadate nanoarrays were prepared by hydrothermal method, and their micro morphology and surface composition were analyzed. Under the an open photocatalytic reaction system, the photocatalytic decomposition reaction of vanadate-modified microspheres for gas pollutants represented by toluene was studied, and the stability, repeatability, water resistance of its catalytic performance were analyzed and tested. The results show that vanadate-modified microspheres show good stability in open photocatalytic reactions, and the catalytic decomposition efficiency of toluene gas can be maintained at about 85% for a long time. At the same time, they also show excellent repeatability and water resistance, the catalytic decomposition efficiency can still be maintained at 83%–85% with a multiple and long time used. This study provides a valuable reference for the comprehensive performance evaluation of new photocatalytic reaction catalysts and the degradation of volatile organic pollutants.