BiVO4, Bi2WO6 and Bi2MoO6 photocatalysis: A brief review. (1st November 2020) - Liu, Xintong
Abstract: In recent years, photocatalytic technologies have been extensively studied and diffusely used in water splitting, decomposition of organic pollutants, reduction of carbon dioxide, etc. As a type of eye-catching semiconductors, BiVO4, Bi2 WO6, and Bi2 MoO6 (denoted as Bi a AO b ) have become a hotspot in photocatalytic researches due to their crystal structure stability, high light quantum and electronic transmission efficiency, and outstanding energy utilization capacity. However, pristine Bi a AO b (A = V, W, and Mo) possesses several drawbacks, such as low separation efficiency of photo-excited electron-hole pairs, low specific surface area, as well as the poor quantum utilization, which restrict their photocatalytic performance. Considerable efforts, such as nanostructure modification, surface engineering, and heterojunction/homojunction fabrication, have been conducted to solve these problems. This integrated review aims to sum up recent advances in current studies on fabrication of high efficiency Bi a AO b photocatalysts to accelerate the developments of Bi a AO b -based materials in the photocatalysis (PC) field. The current challenges and prospects of Bi a AO b are emphasized which stretches the existing fundamental theories of PC as well as provide a promising strategy to fabricate high efficiency Bi a AO b catalysts to control environmental pollution and assist the sustainable development of energy.