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Photocatalytic hydrogen evolution and decomposition of glycerol over C d 0.5 Z n 0.5 S solid solution under visible light irradiation
Author(s) -
Peng Shaoqin,
Ding Min,
Yi Ting,
Zhan Zhikang,
Li Yuexiang
Publication year - 2016
Publication title -
environmental progress and sustainable energy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.495
H-Index - 66
eISSN - 1944-7450
pISSN - 1944-7442
DOI - 10.1002/ep.12217
Subject(s) - photocatalysis , visible spectrum , glycerol , aqueous solution , hydrothermal circulation , materials science , solvent , catalysis , photochemistry , adsorption , hydrogen , precipitation , hydrogen production , nuclear chemistry , chemistry , chemical engineering , organic chemistry , physics , optoelectronics , meteorology , engineering
Cd 0.5 Zn 0.5 S solid solutions were prepared by hydrothermal method and co‐precipitation method. The synthesized materials were characterized by means of X‐ray diffraction (XRD), transmission electron microscopy (TEM), Brunauer–Emmett–Teller (BET) surface area measurement and ultraviolet–visible diffuse reflectance spectra (UV–Vis DRS). The photocatalytic activity was tested in the reaction of hydrogen evolution from aqueous solutions of glycerol under visible light irradiation (λ ≥ 420 nm). Zn 0.5 Cd 0.5 S‐G prepared by co‐precipitation method with glycerol as solvent exhibits higher photocatalytic activity. This can be due to Zn 0.5 Cd 0.5 S‐G possessing higher surface area, which is beneficial to the adsorption of electron donor on catalyst surface. Glycerol improves notably photocatalytic hydrogen evolution with its simultaneous degradation. The possible mechanism of photocatalytic reaction for hydrogen evolution with simultaneous glycerol degradation was discussed preliminary. © 2015 American Institute of Chemical Engineers Environ Prog, 35: 141–148, 2016