Manh B. Nguyen, Huan V. Doan, Doan Le Hoang Tan, Tran Dai Lam
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Enhancement of tetracycline photocatalytic degradation under visible light: Unleashing the synergy of Z-scheme Ag3PO4/GCN/FeNi-BTC photocatalyst with carbon quantum dots
This study presents a novel photocatalytic composite, AgPO/GCN/FeNi-BTC/CQD (AGF-CQD), synthesized via a green microwave-assisted hydrothermal method, integrating carbon quantum dots (CQDs) derived from aquaculture by-products. The AGF-CQD composite demonstrates superior photocatalytic activity, attributed to enhanced visible light absorption, efficient charge transfer, and improved electron-hole separation. Analytical techniques such as photoluminescence (PL), UV–Vis diffuse reflectance spectroscopy (DRS), and transmission electron microscopy (TEM) validate the composite’s structural and optical properties. In tetracycline degradation tests, AGF-CQD outperforms AgPO, GCN, FeNi-BTC, and 20 % AGF samples by 5.5, 3.6, 4.4, and 2.3 times, respectively, achieving a remarkable 98.4 % removal rate after 60 min under visible light. Factors affecting degradation, including dosage, concentration, pH, and water source, are investigated. Furthermore, an operating mechanism based on electrochemical properties and the involvement of radicals is proposed. This research offers a sustainable approach to synthesizing efficient photocatalysts for environmental remediation.
期刊介绍：
Journal of Industrial and Engineering Chemistry is published monthly in English by the Korean Society of Industrial and Engineering Chemistry. JIEC brings together multidisciplinary interests in one journal and is to disseminate information on all aspects of research and development in industrial and engineering chemistry. Contributions in the form of research articles, short communications, notes and reviews are considered for publication. The editors welcome original contributions that have not been and are not to be published elsewhere. Instruction to authors and a manuscript submissions form are printed at the end of each issue. Bulk reprints of individual articles can be ordered. This publication is partially supported by Korea Research Foundation and the Korean Federation of Science and Technology Societies.
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