用于检测和降解四环素类抗生素的双功能铂负载钢渣基复合材料

IF 5.9 3区工程技术 Q1 CHEMISTRY, MULTIDISCIPLINARY

Journal of Industrial and Engineering Chemistry Pub Date : 2024-09-01 DOI:10.1016/j.jiec.2024.08.057

Xin Zhao, Yutong Wang, Zhaohui Zhang, Jiaxiang Liu, Yunfang Liu

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引用次数: 0

摘要

本文研究了一种同时检测和降解水中四环素类抗生素（TCs）的方法。从钢渣中分离出水合硅酸钙（CSH）、水合氧化铁（FeO）和水合铝酸钙（CAH）作为铂单体的载体。生成的铂改性改性钢渣（ALANH-Pt）同时具有过氧化物酶活性和光催化特性。因此，在 ALANH-Pt 的基础上开发出了一种灵敏且具有选择性的比色传感器，用于检测四环素（TC）、土霉素（OTC）和强力霉素（DOX），其检测限（LOD）分别为 1.696 μM、0.999 μM 和 3.607 μM。此外，60 分钟内 TC 的降解率可达 82%。根据 ESR 光谱，讨论了检测和降解的可能机制，揭示了羟基自由基（OH）、超氧自由基（O）和空穴（h）的产生。通过 HPLC-MS 推断了 TC 的降解途径。研究了比色传感平台的选择性以及双功能 ALANH-Pt 在实际水样中的应用。这项工作提供了一种可同时检测和降解三氯甲烷的新思路，并为钢渣的利用提供了一种新方法。

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Bifunctional Pt-loaded steel slag matrix composites for the detection and degradation of tetracycline antibiotics

In this paper, a method for the simultaneous detection and degradation of tetracycline antibiotics (TCs) in water was investigated. Calcium silicate hydrate (CSH), FeO and calcium aluminate hydrate (CAH) were isolated from steel slag as carriers for Pt monomers. The produced Pt-modified modified steel slag (ALANH-Pt) possessed both peroxidase activity and photocatalytic properties. As a result, a sensitive and selective colorimetric sensor was exploited on the basis of ALANH-Pt for tetracycline (TC), oxytetracycline (OTC), and doxycycline (DOX), which exhibited a detection limit (LOD) of 1.696 μM, 0.999 μM and 3.607 μM, respectively. In addition, the degradation rate for TCs could be achieved 82 % within 60 min. The possible mechanisms of detection and degradation are discussed based on ESR spectroscopy, revealing the generation of hydroxyl radicals (OH), superoxide radicals (O) and holes (h). The degradation pathway of TC was inferred by HPLC-MS. The selectivity of the colorimetric sensing platform and the application of the bifunctional ALANH-Pt to real water samples were investigated. This work provides a new idea that allows for the simultaneous detection and degradation of TCs, and offers a new approach to the utilization of steel slag.

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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.