Type-1 α-Fe₂O₃/TiO₂ photocatalytic degradation of tetracycline from wastewater using CCD-based RSM optimization.

Mohammadi, Milad, Sabbaghi, Samad ORCID: 0000-0003-4689-4081, Binazadeh, Mojtaba ORCID: 0000-0002-3808-5981, Ghaedi, Samaneh and Rajabi, Hamid ORCID: 0000-0001-9078-7393 (2023) Type-1 α-Fe₂O₃/TiO₂ photocatalytic degradation of tetracycline from wastewater using CCD-based RSM optimization. Chemosphere, 336. 139311-.

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Abstract

Antibiotic pollution in water is a growing threat to public health and the environment, leading to the spread of antimicrobial-resistant bacteria. While photocatalysis has emerged as a promising technology for removing antibiotics from water, its limited efficiency in the visible light range remains a challenge. In this study, we present a novel method for the photocatalytic degradation of tetracycline, the second most commonly used antibiotic worldwide, using α-Fe₂O₃/TiO₂ nanocomposites synthesized via rapid sonochemical and wet impregnation methods. The nanocomposites were characterised and tested using a range of techniques, including BET, TEM, FTIR, XRD, FESEM, EDS, and UV-Vis. The RSM-CCD method was also used to optimize the degradation process by varying four key variables (initial concentration, photocatalyst quantity, irradiation time, and pH). The resulting optimized conditions achieved a remarkable degradation rate of 97.5%. We also investigated the mechanism of photodegradation and the reusability of the photocatalysts, as well as the effect of light source operating conditions. Overall, the results demonstrate the effectiveness of the proposed approach in degrading tetracycline in water and suggest that it may be a promising, eco-friendly technology for the treatment of water contaminated with antibiotics.

Item Type:	Article
Uncontrolled Keywords:	Titanium, Water, Tetracycline, Anti-Bacterial Agents, Water Pollutants, Chemical, Catalysis, Wastewater
Divisions:	Faculty of Science and Engineering > School of Engineering
Depositing User:	Symplectic Admin
Date Deposited:	07 Jul 2023 08:53
Last Modified:	01 Sep 2023 09:15
DOI:	10.1016/j.chemosphere.2023.139311
Open Access URL:	https://doi.org/10.1016/j.chemosphere.2023.139311
Related URLs:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3171519