增强可见光下的四环素光催化降解：释放 Z 型 Ag3PO4/GCN/FeNi-BTC 光催化剂与碳量子点的协同作用

IF 5.9 3区工程技术 Q1 CHEMISTRY, MULTIDISCIPLINARY

Journal of Industrial and Engineering Chemistry Pub Date : 2024-07-02 DOI:10.1016/j.jiec.2024.07.001

Manh B. Nguyen, Huan V. Doan, Doan Le Hoang Tan, Tran Dai Lam

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引用次数: 0

摘要

本研究采用绿色微波辅助水热法合成了一种新型光催化复合材料--AgPO/GCN/FeNi-BTC/CQD（AGF-CQD），其中集成了从水产养殖副产品中提取的碳量子点（CQD）。AGF-CQD 复合材料具有优异的光催化活性，这归功于其增强的可见光吸收能力、高效的电荷转移能力和更好的电子-空穴分离能力。光致发光（PL）、紫外可见漫反射光谱（DRS）和透射电子显微镜（TEM）等分析技术验证了该复合材料的结构和光学特性。在四环素降解测试中，AGF-CQD 的性能分别是 AgPO、GCN、FeNi-BTC 和 20% AGF 样品的 5.5 倍、3.6 倍、4.4 倍和 2.3 倍，在可见光下 60 分钟后的去除率高达 98.4%。研究了影响降解的因素，包括用量、浓度、pH 值和水源。此外，还提出了基于电化学特性和自由基参与的运行机制。这项研究为合成用于环境修复的高效光催化剂提供了一种可持续的方法。

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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

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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.

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来源期刊

Journal of Industrial and Engineering Chemistry 工程技术-工程：化工

CiteScore

10.40

自引率

6.60%

发文量

639

审稿时长

29 days

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.