A novel g-C3N4/BiOI/Ag2WO4 heterojunction for efficient degradation of organic pollutants under visible light irradiation

Flower-like Ag2WO4/CeO2 heterojunctions with oxygen vacancies and expedited charge carrier separation boost the photocatalytic degradation of dyes and drugs

“…40 Since Ag 2 WO 4 and CeO 2 are direct transition semiconductors, n is equal to 1. 41,42 Notably, a linear fit is applied to the fundamental peak in the Tauc plot, but it is impossible to accurately determine the optical band gap of these photocatalysts because of their complex composite nature. To solve this issue, another linear fit is applied to the slope below the fundamental absorption, 43 and the band gap energy (i.e., E g value) is obtained by estimating the intersection of two fitting lines.…”