Open AccessPhotocatalytic performance of rod‐shaped copper oxides prepared by spin coating
Author(s) -
Koohestani Hassan
Publication year - 2019
Publication title -
micro and nano letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.25
H-Index - 31
ISSN - 1750-0443
DOI - 10.1049/mnl.2018.5447
Subject(s) - photocatalysis , copper , materials science , coating , spin coating , chemical engineering , metallurgy , nanotechnology , chemistry , catalysis , organic chemistry , engineering
Copper oxides (CuO and Cu 2 O), having narrow bandgap and a variety of chemophysical properties, are attractive in many fields such as solar cells, energy conversion, optoelectronic devices, and catalyst. In this work, these copper oxides are synthesised via co‐precipitation method and spin coating and annealed in various temperatures. Then, samples are characterised by X‐ray powder diffraction, scanning electron microscopy (SEM) and ultraviolet–visible light absorption spectra. From the SEM images of sample annealed at 450°C, the diameter and lengths range of the rod‐shaped particles were 30–70 and 200–300 nm, respectively. Finally, to investigate the photocatalytic activity of oxides, methyl orange (MeO) degradation by copper oxides under UV irradiation was studied. Pure CuO with bandgap energy 1.37 eV and specific surface areas 91.3 m 2 /g had a greater efficiency of MeO degradation value 87.8%.