Loading Co3N nanoparticles as efficient cocatalysts over Zn0.5Cd0.5S for enhanced H2 evolution under visible light. Issue 8 (31st January 2019)

• Record Type: Journal Article
• Authors: Jin, Zhanbin; Wei, Tingting; Lixue Li, ; Li, Fengyan; Tao, Ran; Xu, Lin
• Is Part Of: Dalton transactions. Volume 48:Issue 8(2019)
• Page Start: 2676
• Page End: 2682
• Publication Date: 2019-01-31
• Subjects: Chemistry, Inorganic -- Periodicals; Chemistry, Physical and theoretical -- Periodicals; Chemistry, Inorganic -- Periodicals; 546.05
• DOI: 10.1039/c8dt05087b
• Languages: English
• ISSNs: 1477-9226

Abstract

Abstract : Co3 N nanoparticles were decorated on Cd0.5 Zn0.5 S as highly efficient co-catalysts via a facile method. The H2 evolution activity of Co3 N(2 wt%)/Cd0.5 Zn0.5 S is 25 times higher than that of pure Cd0.5 Zn0.5 S. Abstract : Exploiting high performance and noble-metal-free catalysts is of great interest in photocatalytic water splitting. In this study, Co3 N nanoparticles were successfully decorated on Cd0.5 Zn0.5 S as highly efficient co-catalysts via a facile method. The Co3 N(2 wt%)/Cd0.5 Zn0.5 S composite sample showed the highest photocatalytic H2 evolution activity. A corresponding H2 evolution rate of 160.7 mmol h −1 g −1 was achieved in 0.35 M Na2 S/0.25 M Na2 SO3, which was about 25 times higher than that of a pure Cd0.5 Zn0.5 S sample. The H2 production rate of Co3 N(2 wt%)/Cd0.5 Zn0.5 S reached 218.8 mmol h −1 g −1 in 1.05 M Na2 S/0.75 M Na2 SO3 under visible light irradiation ( λ > 420 nm) and the apparent quantum yield (AQY) was 30.2% at 420 nm.