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Journal of Photocatalysis

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ISSN (Print): 2665-976X
ISSN (Online): 2665-9778

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Research Article

Green Synthesis of ZnO/Dy/NiO Heterostructures for Enhanced Photocatalytic Applications

Author(s): Shubha Jayachamarajapura Pranesh* and Diwya Lanka

Volume 1, Issue 1, 2020

Page: [30 - 36] Pages: 7

DOI: 10.2174/2665976X01666200214125616

Abstract

Background: Textile industries discharge harmful synthetic dyes to nearby water sources. These colour effluents should be treated before discharge to reduce the toxicity caused by synthetic colours.

Objective: To synthesize visible light active superstructures to reduce water pollution caused by textile industries.

Methods: We have successfully synthesized ZnO/Dy/NiO hybrid nanocomposites using waste curd as fuel by a simple combustion method. The obtained material was able to reduce recombination and enhanced the photocatalytic degradation of organic pollutants. The as-synthesized material was characterized by XRD, absorption spectroscopy, FESEM, EDAX, etc. The obtained hybrid nanostructure was used as a photocatalyst for the degradation of methylene blue under sunlight, UV light as well as in dark. Comparative experiments were carried out with a variation of catalytic load, pH, dye concentrations, etc. for a better understanding of the performance of the catalyst at various conditions.

Results and Conclusion: The ternary compound shows wide range of absorption by expanding absorption band both in UV and visible regions. ZnO/Dy/NiO hybrid nanocomposites performed well and showed uniqueness in the activity uder visible light.

Keywords: Ternary heterostructures, ZnO/Dy/NiO, photocatalysis, methylene blue, dye degradation.

Graphical Abstract

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