Nithya, N and Vijayakumar, G Design and Development of Advanced MoSe2/MnO2 Nanocomposite for Direct yellow dye degradation for Enhanced photocatalytic Applications. Design and Development of Advanced MoSe2/MnO2 Nanocomposite for Direct yellow dye degradation for Enhanced photocatalytic Applications.

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Abstract

MoSe2, a significant component within the class of two-dimensional transition metal
dichalcogenides, boasts a diverse set of photoelectrochemical characteristics. Herein, we
propose a simple hydrothermal approach to synthesis MoSe2/MnO2 nanocomposites with
controllable morphologies with enhanced photocatalytic activity. The obtained
nanocomposite was confirmed by the analysed peaks of MoSe2/MnO2 observed in X-ray
diffraction (13.6o
, 18.1o
, 37.5o
), infrared spectra (495, 645, 1410 cm-1), UV-Vis spectra (506,
640, 748 nm) and the band gap lowering (1.94 eV, 2.8 eV, and 4.57 eV). Due to the efficient
separation of photogenerated electron-hole pairs facilitated by the rapid transfer of
photogenerated electrons by the addition of MnO2, the MoSe2/MnO2 composite demonstrates
significantly enhanced solar-driven photocatalytic performance and excellent stability in
degrading Direct Yellow (DY), a common pollutant found in industrial effluents. The
MoSe2/MnO2 nanocomposite photocatalytic activity was found to be 1.2 to 1.6 times higher
than that of its individual components of MoSe2 and MnO2, indicating synergistic effects
leading to enhanced performance. This underscores its considerable potential for
environmental remediation, offering a promising approach for the degradation of harmful
industrial chemicals present in wastewater using sunlight.

Item Type: Article
Uncontrolled Keywords: Molybdenum diselenide; Manganese dioxide; Nanocomposite; Photocatalysis; UV-Vis light
Divisions: PSG College of Arts and Science > Department of Physics
Depositing User: Mr Team Mosys
Date Deposited: 14 Aug 2024 11:35
Last Modified: 14 Aug 2024 11:35
URI: https://ir.psgcas.ac.in/id/eprint/2161

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