过电位
光催化
量子产额
化学
制氢
可见光谱
催化作用
氢
电化学
锌
光化学
核化学
无机化学
荧光
电极
物理化学
材料科学
光电子学
光学
物理
冶金
有机化学
作者
Baibiao Huang,Sijia Yu,Xuezhong Gong,Can Xue
标识
DOI:10.1002/cplu.201800316
摘要
Abstract FeP as a noble‐metal‐free catalyst has been successfully decorated onto the Zn x Cd 1−x S photocatalyst surface through an in situ phosphating process. In particular, the 2 % FeP/Zn 0.5 Cd 0.5 S−P sample showed the best hydrogen generation activity of 24.45 mmol h −1 g −1 which is over 130 times higher than that of pure Zn 0.5 Cd 0.5 S and nearly 1.3 times higher than that of the 1 % Pt‐loaded Zn 0.5 Cd 0.5 S−P sample. The apparent quantum yield (AQY) of the 2 % FeP/Zn 0.5 Cd 0.5 S−P was estimated to be over 10 % at wavelengths up to 470 nm. The fluorescence spectra and electrochemical measurement results suggest that the decorated FeP not only reduces the overpotential for H 2 evolution but also promotes the separation of the photogenerated charge carriers through formation of a heterojunction with Zn 0.5 Cd 0.5 S, which eventually leads to the superior activity of the FeP/Zn 0.5 Cd 0.5 S−P photocatalyst for visible‐light‐driven hydrogen generation.
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