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Rajendran S, Hoang TKA, Trudeau ML, Jalil AA, Naushad M, Awual MR. Generation of novel n-p-n (CeO 2-PPy-ZnO) heterojunction for photocatalytic degradation of micro-organic pollutants. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 292:118375. [PMID: 34656681 DOI: 10.1016/j.envpol.2021.118375] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2021] [Revised: 10/01/2021] [Accepted: 10/13/2021] [Indexed: 06/13/2023]
Abstract
Recently, hetero junction materials (p-n-p and n-p-n) have been developed for uplifting the visible light activity to destroy the harmful pollutants in wastewater. This manuscript presents a vivid description of novel n-p-n junction materials namely CeO2-PPy-ZnO. This novel n-p-n junction was applied as the photocatalyst in drifting the mobility of charge carriers and hence obtaining the better photocatalytic activity when compared with p-n and pure system. Such catalyst's syntheses were successful via the copolymerization method. The structural, morphological and optical characterization techniques were applied to identify the physio-chemical properties of the prepared materials. Additionally, the superior performance of this n-p-n nanostructured material was demonstrated in the destruction of micro organic (chlorophenol) toxic wastes under visible light. The accomplished ability of the prepared catalysts (up to 92% degradation of chlorophenol after 180 min of irradiation) and their profound degradation mechanism was explained in detail.
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Affiliation(s)
- Saravanan Rajendran
- Departamento de Ingeniería Mecánica, Facultad de Ingeniería, Universidad de Tarapacá, Avda. General Velásquez, 1775, Arica, Chile.
| | - Tuan K A Hoang
- Institut de Recherche d'Hydro-Québec, 1806, boul, Lionel-Boulet, Varennes, Québec, J3X 1S1, Canada
| | - Michel L Trudeau
- Institut de Recherche d'Hydro-Québec, 1806, boul, Lionel-Boulet, Varennes, Québec, J3X 1S1, Canada
| | - A A Jalil
- School of Chemical and Energy Engineering Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310, UTM Johor Bahru, Johor, Malaysia; Centre of Hydrogen Energy, Institute of Future Energy, 81310, UTM Johor Bahru, Johor, Malaysia
| | - Mu Naushad
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia.
| | - Md Rabiul Awual
- Material Science and Research Center, Japan Atomic Energy Agency (SPring-8), Hyogo, 679-5148, Japan
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Shafafi S, Habibi-Yangjeh A, Feizpoor S, Chand H, Krishnan V, Wang C. Impressive visible-light photocatalytic performance of TiO2 by integration with Bi2SiO5 nanoparticles: Binary TiO2/Bi2SiO5 photocatalysts with n-n heterojunction. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.127392] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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