三元运算
异质结
分解水
制氢
材料科学
光催化
纳米点
纳米技术
量子产额
氢
光电子学
化学工程
催化作用
化学
计算机科学
物理
光学
工程类
有机化学
程序设计语言
荧光
生物化学
作者
Qiuying He,Qijie Jin,Chuanxiang Chen,Jin Wang,Songmei Yuan,Shukun Le,Fu Yang,Yin Yu,Feng Du,Haitao Xu,Chengzhang Zhu
标识
DOI:10.1016/j.jcis.2023.06.211
摘要
Developing artificial S-scheme systems with highly active catalysts is significant to long-term solar-to-hydrogen conversion. Herein, CdS nanodots-modified hierarchical In2O3/SnIn4S8 hollow nanotubes were synthesized by an oil bath method for water splitting. Benefiting from the synergy among the hollow structure, tiny size effect, matched energy level positions, and abundant coupling heterointerfaces, the optimized nanohybrid attains an impressive photocatalytic hydrogen evolution rate of 110.4 µmol/h, and the corresponding apparent quantum yield reaches 9.7% at 420 nm. On In2O3/SnIn4S8/CdS interfaces, the migration of photoinduced electrons from both CdS and In2O3 to SnIn4S8via intense electronic interactions contributes to the ternary dual S-scheme modes, which are beneficial to promote faster spatial charge separation, deliver better visible light-harvesting ability, and provide more reaction active sites with high potentials. This work reveals protocols for rational design of on-demand S-scheme heterojunctions for sustainably converting solar energy into hydrogen in the absence of precious metals.
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