Abstract
Abstract In this work, we report facile synthesis of rGO-MoO3 nanocomposites as photocatalysts via
one-step hydrothermal method. Initially, the synthesized materials were characterized by
different physicochemical methods to reveal the structural, morphological, optical, and other
properties. The transmission electron microscopy (TEM) and Raman spectroscopy results
validate the formation of rGO-MoO3 nanocomposites. The optical bandgap values of pristine
MoO3 (3.47 eV) and rGO-MoO3 (3.36 eV), reveal that they can serve as ultra-violet light
photocatalysts, for the decomposition of organic pollutants e.g. methylene blue (MB) and
rhodamine G (RhG) dye. The rGO-MoO3 nanocomposites significantly enhanced the
photodegradation efficiency as compared to MoO3, due to the interfacial interaction between
the composite parts and promote the transfer of charge carriers from MoO3 to rGO, causing a
reduced rate of electron-hole recombination. The highest degradation efficiency was observed
for rGO-MoO3 nanocomposite {for MB (~50%) and RhG (~96%)}, whereas for MoO3 {for
MB (~40%) and RhG (~43%)}. This report highlights a noteworthy impact of rGO with MoO3
nanocomposites as a photocatalyst.
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