Premium
In Situ Decoration of Zn x Cd 1−x S with FeP for Efficient Photocatalytic Generation of Hydrogen under Irradiation with Visible Light
Author(s) -
Zhu Xianglin,
Yu Sijia,
Gong Xuezhong,
Xue Can
Publication year - 2018
Publication title -
chempluschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.801
H-Index - 61
ISSN - 2192-6506
DOI - 10.1002/cplu.201800316
Subject(s) - overpotential , photocatalysis , quantum yield , hydrogen production , electrochemistry , hydrogen , catalysis , visible spectrum , materials science , zinc , photochemistry , nuclear chemistry , inorganic chemistry , chemistry , fluorescence , electrode , metallurgy , organic chemistry , optics , physics , optoelectronics
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.