Facilitating space charge directional separation for enhancing photocatalytic CO₂ reduction over tetragonal BiVO₄

Abstract

The surface modification of dual cocatalysts on photocatalyst is believed to effectively promote the separation of photogenerated carriers in the CO2 reduction reaction. Here, taking tetragonal BiVO4 with strain effect...

Review of Bi-based catalysts in piezocatalytic, photocatalytic and piezo-photocatalytic degradation of organic pollutants

“…Photocatalysis and piezocatalysis are considered advanced oxidation technologies, which have been carried out in various fields, such as the generation of O 2 and H 2 , the degradation of organic pollutants, the reduction of CO 2 , and the cracking of water. [33][34][35] The concept of piezocatalysis is similar to that of photocatalysis, but the difference is the trigger source for the production of active free radicals. In the photocatalytic process, the catalyst produces electron-hole pairs under light irradiation, resulting in the electrons being excited from the valence band (VB) to the conduction band (CB), leaving holes in the conduction band (Fig.…”