Enhanced photocatalytic activity in hydro-thermally grown nano structured ZnO/SnS core–shell composites-Reference-Cited by-同舟云学术

Enhanced photocatalytic activity in hydro-thermally grown nano structured ZnO/SnS core–shell composites

Published:2021-10-21 Issue:2 Volume:77 Page:153-169
ISSN:0932-0784
Container-title:Zeitschrift für Naturforschung A
language:en
Short-container-title:

Author:

Dharmana Govinda¹,Masabattula Prabhakara Srinivasa Rao¹,Potukuchi Dakshina Murthy²

Affiliation:

1. Physics Division, Department of Basic Sciences & Humanities , GMR Institute of Technology , Rajam 532127 , AP , India

2. Department of Physics , Jawaharlal Nehru Technological University , Kakinada 533003 , AP , India

Abstract

Abstract Detoxification of water bodies from industrial pollutant dyes by semiconductor heterojunction composites briefed. Synthesis of ZnO/SnS core/shell nanocomposites by ecofriendly hydrothermal method presented. Characterization by powder X-ray diffraction (XRD), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), UV–Vis absorption spectroscopy photoluminescence (PL) etc., were presented. Abundance of orthorhombic ZnO and hexagonal SnS was confirmed by X-ray diffraction. Compression of hexagonal ZnO planes (as core nanorods) and SnS core nanoparticles infers growth of core shell structure. Average crystallite size is found to be 5.8 nm. Structure and TEM morphology correlated. XPS reveals abundance of elemental oxidation state. Photocatalytic activity was studied by using visible light irradiation. Photoluminescence for ZnO/SnS core/shell nanocomposites inferred significant emission peaks. Enhanced PCA observed against visible light. Methylene blue dye characteristic PCAby its degradation evinced. PCA is found optimal for Z-S3. Configuration of bandgap promoted growth of novel hetero junction. Physical mechanism is proposed for the enhanced photocatalytic activity as accompanied by degradation of MB dye.

Publisher

Walter de Gruyter GmbH

Subject

Physical and Theoretical Chemistry,General Physics and Astronomy,Mathematical Physics

Link

https://www.degruyter.com/document/doi/10.1515/zna-2021-0209/pdf

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