A review on transition metal oxides based photocatalysts for degradation of synthetic organic pollutants.

Autor: Krishnan A; Department of Chemistry, Amrita Vishwa Vidyapeetham, Amritapuri, Kerala, 690 525, India. Electronic address: athikrishnan91@gmail.com., Swarnalal A; Department of Chemistry, Amrita Vishwa Vidyapeetham, Amritapuri, Kerala, 690 525, India., Das D; Department of Chemistry, Amrita Vishwa Vidyapeetham, Amritapuri, Kerala, 690 525, India., Krishnan M; Department of Chemistry, Amrita Vishwa Vidyapeetham, Amritapuri, Kerala, 690 525, India., Saji VS; Interdisciplinary Research Center for Advanced Materials, King Fahd University of Petroleum & Minerals, Dhahran, 31261, Saudi Arabia., Shibli SMA; Department of Chemistry, University of Kerala, Kariavattom Campus, Thiruvananthapuram, Kerala, 695 581, India.
Jazyk: angličtina
Zdroj: Journal of environmental sciences (China) [J Environ Sci (China)] 2024 May; Vol. 139, pp. 389-417. Date of Electronic Publication: 2023 Mar 07.
DOI: 10.1016/j.jes.2023.02.051
Abstrakt: This review provides insight into the current research trend in transition metal oxides (TMOs)-based photocatalysis in removing the organic colouring matters from water. For easy understanding, the research progress has been presented in four generations according to the catalyst composition and mode of application, viz: single component TMOs (the first-generation), doped TMOs/binary TMOs/doped binary TMOs (the second-generation), inactive/active support-immobilized TMOs (the third-generation), and ternary/quaternary compositions (the fourth-generation). The first two generations represent suspended catalysts, the third generation is supported catalysts, and the fourth generation can be suspended or supported. The review provides an elaborated comparison between suspended and supported catalysts, their general/specific requirements, key factors controlling degradation, and the methodologies for performance evaluation. All the plausible fundamental and advanced dye degradation mechanisms involved in each generation of catalysts were demonstrated. The existing challenges in TMOs-based photocatalysis and how the researchers approach the hitch to resolve it effectively are discussed. Future research trends are also presented.
Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2023. Published by Elsevier B.V.)
Databáze: MEDLINE
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