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Fabrication of NiO/Ta 2 O 5 composite photocatalyst for hydrogen production under visible light
Author(s) -
Parida K. M.,
Mahanta Saroj Ku.,
Martha Satyabadi,
Nashim Amtul
Publication year - 2013
Publication title -
international journal of energy research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.808
H-Index - 95
eISSN - 1099-114X
pISSN - 0363-907X
DOI - 10.1002/er.1924
Subject(s) - photocatalysis , x ray photoelectron spectroscopy , materials science , non blocking i/o , visible spectrum , photoluminescence , composite number , hydrogen production , spectroscopy , diffuse reflectance infrared fourier transform , transmission electron microscopy , nuclear chemistry , absorption spectroscopy , ultraviolet , powder diffraction , hydrogen , chemical engineering , nanotechnology , optoelectronics , optics , chemistry , composite material , catalysis , crystallography , organic chemistry , quantum mechanics , engineering , physics
SUMMARY A series of novel composite photocatalysts, NiO/Ta 2 O 5 , were synthesized by the solid‐state reaction and successfully characterized by X‐ray diffraction, Transmission electron microscopy, diffused reflectance ultraviolet and visible (DRUV‐vis) spectroscopy, Photoluminescence and X‐ray photoelectron spectroscopy. Powder X‐ray diffraction (PXRD) pattern indicated the formation of composite material. The red shift in the absorption edges of the newly prepared composite photocatalysts were well observed from the DRUV‐vis spectra. The composite photocatalyst prepared at metal ratio (1:3) showed highest result toward hydrogen production under ultraviolet and visible light irradiation in the presence of methanol as a sacrificial agent. Copyright © 2011 John Wiley & Sons, Ltd.