A review on passivation engineering for improving photocatalytic hydrogen evolution performance

Abstract

Photocatalytic hydrogen evolution (PHE) is a promising way to the energy renewable and eco-friendly development of future society, but the low activity and durability of photocatalysts seriously restrict the development...

Halogen anions (F−, Cl−, Br−) modulated the localized microstructure of g-C3N4 to facilitate charge separation and transport and enhance photocatalytic activities

“…5,6 Nonetheless, the widespread utilization of CN faces challenges stemming from factors such as rapid carrier recombination, limited active sites, low specific surface area, and poor photostability, resulting in suboptimal solar energy conversion efficiency. Various strategies, including the construction of heterostructures, 7,8 homojunctions, 9 loading of noble metals, 10 morphology control, 11,12 passivation engineering, 13 and doping regulation, 14,15 have been proposed to enhance the photocatalytic performance of CN. However, these strategies have not fully addressed the limitations, providing greater scope for improvement in terms of practical applications.…”