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Synthesis of Ag 2 O‐SnO 2 and SnO 2 ‐Ag 2 O Nanocomposites and Investigation on Photocatalytic Performance under Direct Sun Light
Author(s) -
Kumar M. Rajesh,
Murugadoss G.,
Venkatesh N.,
Sakthivel P.
Publication year - 2020
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.202001227
Subject(s) - nanocomposite , photocatalysis , materials science , transmission electron microscopy , methyl orange , photoluminescence , scanning electron microscope , fourier transform infrared spectroscopy , spectroscopy , analytical chemistry (journal) , visible spectrum , chemical engineering , nuclear chemistry , nanotechnology , chemistry , composite material , optoelectronics , physics , biochemistry , chromatography , quantum mechanics , engineering , catalysis
Ag 2 O‐SnO 2 and SnO 2 ‐Ag 2 O nanocomposites were successfully synthesized by a facile one‐step chemical precipitation method. The microstructural features of nanocomposites were characterized by X‐Ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), high‐resolution transmission electron microscopy (HR‐TEM), Fourier transform infrared spectroscopy (FT‐IR), UV‐visible (UV‐vis) and Photoluminescence (PL) spectroscopy. The SnO 2 ‐Ag 2 O showed enhanced PL emission than the Ag 2 O‐SnO 2 nanocomposite. Photocatalytic activity of the nanocomposites was studied for methylene blue (MB) and methyl orange (MO) dyes under sun light. The Ag 2 O‐SnO 2 nanocomposite showed excellent photocatalytic activity for the degradation of both dyes. The high photocatalytic activity of Ag 2 O‐SnO 2 could be ascribed to the enhanced charge separation derived from the coupling of Ag 2 O with SnO 2 due to the potential energy differences between Ag 2 O and SnO 2 , which would promote interfacial charge‐transfer relative to that of charge carrier recombination.