Doped graphitic carbon nitride (g-C 3 N 4 ) catalysts for efficient photodegradation of tetracycline antibiotics in aquatic environments.

Autor: Pattanayak DS; Department of Chemical Engineering, National Institute of Technology Raipur, Raipur, 492 010, CG, India., Pal D; Department of Chemical Engineering, National Institute of Technology Raipur, Raipur, 492 010, CG, India. dpsingh.che@nitrr.ac.in., Mishra J; Department of Chemistry (Environmental Science and Technology Program), ITER, Siksha'O'Anusandhan (Deemed To Be) University, Bhubaneswar, 751 030, Odisha, India., Thakur C; Department of Chemical Engineering, National Institute of Technology Raipur, Raipur, 492 010, CG, India., Wasewar KL; Department of Chemical Engineering, VNIT, Nagpur, 440010, MH, India.
Jazyk: angličtina
Zdroj: Environmental science and pollution research international [Environ Sci Pollut Res Int] 2023 Feb; Vol. 30 (10), pp. 24919-24926. Date of Electronic Publication: 2022 Mar 19.
DOI: 10.1007/s11356-022-19766-y
Abstrakt: Tetracyclines (TCs) antibiotics are very common and often used in both human and veterinary medicines. More than 75% of TCs are excreted in an active condition and released into the environment, posing a risk to the ecosystem and human health. Residual antibiotics are in global water bodies, causing antibiotic resistance and genotoxicity in humans and aquatic organisms. The ever-increasing number of multi-resistant bacteria caused by the widespread use of antibiotics in the environment has sparked a renewed interest in developing more sustainable antibiotic degradation processes. In this regard, photodegradation technique provides a promising solution to resolve this growing issue, paving the way for complete antibiotic degradation with the generation of non-toxic by-products. As a fascinating activity towards visible light range shown by semiconductor, graphitic carbon nitride (g-C 3 N 4 ) has a medium bandgap, non-toxicity, chemically stable complex, and thermally great strength. Recent studies have concentrated on the performance of g-C 3 N 4 as a photocatalyst for treating wastewater. Pure g-C 3 N 4 exhibits limited photocatalytic activity due to insufficient sunlight usage, small surface area, and a high rate of recombination of electron and hole ([Formula: see text] & [Formula: see text]) pairs created in photocatalytic activity. Doping of g-C 3 N 4 is a very effective method for improving the activity as element doped g-C 3 N 4 shows excellent bandgap and electronic structure. Doping significantly broadens the light-responsive range and reduces recombination of e - & h + pairs. Under above context, this review provides a systematic and comprehensive outlook of designing doped g-C 3 N 4 as well as efficiency for TCs degradation in aquatic environment.
(© 2022. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)
Databáze: MEDLINE
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