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Efficient Photocatalytic Hydrogen Generation from Water over CdS Nanoparticles Confined Within an Alumina Matrix
Author(s) -
Zhou Peng,
Liu Yuanyuan,
Wang Zeyan,
Wang Peng,
Qin Xiaoyan,
Zhang Xiaoyang,
Huang Baibiao,
Dai Ying
Publication year - 2017
Publication title -
chemphotochem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.13
H-Index - 18
ISSN - 2367-0932
DOI - 10.1002/cptc.201700087
Subject(s) - high resolution transmission electron microscopy , x ray photoelectron spectroscopy , photocatalysis , photoluminescence , materials science , nanoparticle , chemical engineering , water splitting , layered double hydroxides , spectroscopy , diffuse reflectance infrared fourier transform , hydrogen , photochemistry , nanotechnology , transmission electron microscopy , catalysis , chemistry , hydroxide , optoelectronics , organic chemistry , physics , quantum mechanics , engineering
In this work, CdS nanoparticles embedded in an alumina matrix were successfully synthesized using layered double hydroxides (LDHs) as the precursor and template, denoted as CdS LDH . The as‐prepared CdS LDH were characterized by XRD, UV/Vis diffuse reflectance spectroscopy, TEM, HRTEM, X‐ray photoelectron spectroscopy, photoluminescence and time‐resolved fluorescence spectra. The photocatalytic hydrogen evolution rate over CdS LDH is much higher than its counterpart without the alumina matrix, that is, almost two times higher under the same conditions. The enhanced hydrogen generation performance can be attributed to the segregation and growth‐inhibiting effects of the alumina matrix. In addition, CdS LDH also displays strong fluorescence properties and a long lifetime of photogenerated charge carriers.