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Review

Review of Recent Developments in the Fabrication of ZnO/CdS Heterostructure Photocatalysts for Degradation of Organic Pollutants and Hydrogen Production

by
Santhosh Kumar Nadikatla
1,
Vinod Babu Chintada
2,
Thirumala Rao Gurugubelli
3,* and
Ravindranadh Koutavarapu
4,*
1
Chemistry Division, Department of Basic Sciences and Humanities, GMR Institute of Technology, Rajam 532127, Andhra Pradesh, India
2
Department of Mechanical Engineering, GMR Institute of Technology, Rajam 532127, Andhra Pradesh, India
3
Physics Division, Department of Basic Sciences and Humanities, GMR Institute of Technology, Rajam 532127, Andhra Pradesh, India
4
Department of Robotics Engineering, College of Mechanical and IT Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea
*
Authors to whom correspondence should be addressed.
Molecules 2023, 28(11), 4277; https://doi.org/10.3390/molecules28114277
Submission received: 25 April 2023 / Revised: 17 May 2023 / Accepted: 22 May 2023 / Published: 23 May 2023
(This article belongs to the Special Issue Recent Advances in Nanomaterial Synthesis)
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Abstract

Researchers have recently paid a lot of attention to semiconductor photocatalysts, especially ZnO-based heterostructures. Due to its availability, robustness, and biocompatibility, ZnO is a widely researched material in the fields of photocatalysis and energy storage. It is also environmentally beneficial. However, the wide bandgap energy and quick recombination of the photoinduced electron–hole pairs of ZnO limit its practical utility. To address these issues, many techniques have been used, such as the doping of metal ions and the creation of binary or ternary composites. Recent studies showed that ZnO/CdS heterostructures outperformed bare ZnO and CdS nanostructures in terms of photocatalytic performance when exposed to visible light. This review largely concentrated on the ZnO/CdS heterostructure production process and its possible applications including the degradation of organic pollutants and hydrogen evaluation. The importance of synthesis techniques such as bandgap engineering and controlled morphology was highlighted. In addition, the prospective uses of ZnO/CdS heterostructures in the realm of photocatalysis and the conceivable photodegradation mechanism were examined. Lastly, ZnO/CdS heterostructures’ challenges and prospects for the future have been discussed.
Keywords: ZnO/CdS heterostructures; photocatalysis; synthesis methods; hydrogen production ZnO/CdS heterostructures; photocatalysis; synthesis methods; hydrogen production

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MDPI and ACS Style

Nadikatla, S.K.; Chintada, V.B.; Gurugubelli, T.R.; Koutavarapu, R. Review of Recent Developments in the Fabrication of ZnO/CdS Heterostructure Photocatalysts for Degradation of Organic Pollutants and Hydrogen Production. Molecules 2023, 28, 4277. https://doi.org/10.3390/molecules28114277

AMA Style

Nadikatla SK, Chintada VB, Gurugubelli TR, Koutavarapu R. Review of Recent Developments in the Fabrication of ZnO/CdS Heterostructure Photocatalysts for Degradation of Organic Pollutants and Hydrogen Production. Molecules. 2023; 28(11):4277. https://doi.org/10.3390/molecules28114277

Chicago/Turabian Style

Nadikatla, Santhosh Kumar, Vinod Babu Chintada, Thirumala Rao Gurugubelli, and Ravindranadh Koutavarapu. 2023. "Review of Recent Developments in the Fabrication of ZnO/CdS Heterostructure Photocatalysts for Degradation of Organic Pollutants and Hydrogen Production" Molecules 28, no. 11: 4277. https://doi.org/10.3390/molecules28114277

APA Style

Nadikatla, S. K., Chintada, V. B., Gurugubelli, T. R., & Koutavarapu, R. (2023). Review of Recent Developments in the Fabrication of ZnO/CdS Heterostructure Photocatalysts for Degradation of Organic Pollutants and Hydrogen Production. Molecules, 28(11), 4277. https://doi.org/10.3390/molecules28114277

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