g/C3N4-based photocatalysis

• 作者: Chao Zhao
• 来源期刊: 半导体学报（英文版）
• 年，卷（期）: 2020,（9）
• 页码范围: 1
• 页数: 1页
• 语种: 英文
• DOI: 10.1088/1674-4926/41/9/090201

摘要

Photocatalysis has been regarded as a sustainable and environmentally friendly technique for the degradation of contaminants.Graphitic carbon nitride (g/C3N4), an efficient metal-free polymeric semiconductor photocatalyst, has attracted extensive attention, but the practical applications of intrinsic g/C3N4 are usually limited by its insufficient visible-light absorption (the band absorption edge is about 460 nm), high recombination rate of charge carriers and low electrical conductivity.Various strategies, including doping with elements to narrow the bandgap, coupling with cocatalysts to enhance the reaction kinetics, and loading on substrates with excellent mobility of charge carriers to realize the efficient charge extraction,have been developed to overcome these drawbacks.However, the systematic optimization on the photocatalytic behaviors of g/C3N4 for degrading complicated chemicals is lack of deserved attention.