Photocatalytic degradation of tetracycline hydrochloride by novel Se-doped Cu7.2S4/C photocatalyst from Cu-based MOF precursors

IF 6.7 2区工程技术 Q1 ENGINEERING, CHEMICAL

Journal of water process engineering Pub Date : 2025-09-12 DOI:10.1016/j.jwpe.2025.108724

Haonan Zhang , Bin Zhu , Zhengyi Zhong , Jun Xiong , Chenxi Wang , Donglou Ren

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引用次数: 0

Abstract

Se-doped Cu_7.2S₄/C (Cu-2Se5S), a visible light activated photocatalyst, was synthesized by combining selenization, sulfurization, and carbonization processes to treat the Cu-based metal-organic frameworks (Cu-BDC MOF), which was employed to remove tetracycline hydrochloride (TC-HCl). Systematic analysis revealed that the Cu-2Se5S photocatalyst exhibited excellent crystallinity and superior conductivity, suggesting the substitution of S by Se. These advantages resulted in the outstanding photoelectric features with low carrier transport resistance (4000 Ω). Thus, after 60 min of irradiation with 0.5 g/L of Cu-2Se5S, the removal efficiency of TC-HCl (10 mg/L) was around 90 %. Moreover, the Cu-2Se5S photocatalyst exhibited an anti-interference ability for Cl⁻ and SO₄²⁻ anions for final efficiency. More importantly, the Cu-2Se5S could effectively degrade the sulfadiazine (SDZ), methylene blue (MB), and Rhodamine B (RhB) contaminants in water. The degradation of TC-HCl was caused by the •O₂⁻ and •OH radicals, with •O₂⁻ species playing the dominant role. Due to the excellent stability and reusability, the Cu-2Se5S photocatalyst is promising for the practical application in environmental remediation. This work may provide an alternative approach for synthesizing selenides and sulfides using MOFs precursors, which could efficiently remove antibiotics from wastewater.

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新型掺硒Cu7.2S4/C光催化剂对盐酸四环素的光催化降解研究

采用硒化、硫化和碳化相结合的方法合成了硒掺杂Cu7.2S4/C （Cu-2Se5S）可见光活化光催化剂，对cu基金属有机骨架（Cu-BDC MOF）进行了处理，并用于脱除盐酸四环素（TC-HCl）。系统分析表明，Cu-2Se5S光催化剂具有优异的结晶度和优异的导电性，表明S被Se取代。这些优点导致了突出的光电特性，载流子输运电阻低（4000 Ω）。因此，0.5 g/L Cu-2Se5S辐照60 min后，对TC-HCl （10 mg/L）的去除率在90%左右。此外，Cu-2Se5S光催化剂表现出对Cl -和SO42 -阴离子的抗干扰能力，从而提高了最终效率。更重要的是，Cu-2Se5S可以有效地降解水中的磺胺嘧啶（SDZ）、亚甲基蓝（MB）和罗丹明B （RhB）污染物。TC-HCl的降解主要由•O2−和•OH自由基引起，其中•O2−自由基起主导作用。Cu-2Se5S光催化剂具有良好的稳定性和可重复使用性，在环境修复中具有广阔的应用前景。本研究为利用mof前体合成硒化物和硫化物提供了一种新的途径，可以有效地去除废水中的抗生素。

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来源期刊

Journal of water process engineering Biochemistry, Genetics and Molecular Biology-Biotechnology

CiteScore

10.70

自引率

8.60%

发文量

846

审稿时长

24 days

期刊介绍： The Journal of Water Process Engineering aims to publish refereed, high-quality research papers with significant novelty and impact in all areas of the engineering of water and wastewater processing . Papers on advanced and novel treatment processes and technologies are particularly welcome. The Journal considers papers in areas such as nanotechnology and biotechnology applications in water, novel oxidation and separation processes, membrane processes (except those for desalination) , catalytic processes for the removal of water contaminants, sustainable processes, water reuse and recycling, water use and wastewater minimization, integrated/hybrid technology, process modeling of water treatment and novel treatment processes. Submissions on the subject of adsorbents, including standard measurements of adsorption kinetics and equilibrium will only be considered if there is a genuine case for novelty and contribution, for example highly novel, sustainable adsorbents and their use: papers on activated carbon-type materials derived from natural matter, or surfactant-modified clays and related minerals, would not fulfil this criterion. The Journal particularly welcomes contributions involving environmentally, economically and socially sustainable technology for water treatment, including those which are energy-efficient, with minimal or no chemical consumption, and capable of water recycling and reuse that minimizes the direct disposal of wastewater to the aquatic environment. Papers that describe novel ideas for solving issues related to water quality and availability are also welcome, as are those that show the transfer of techniques from other disciplines. The Journal will consider papers dealing with processes for various water matrices including drinking water (except desalination), domestic, urban and industrial wastewaters, in addition to their residues. It is expected that the journal will be of particular relevance to chemical and process engineers working in the field. The Journal welcomes Full Text papers, Short Communications, State-of-the-Art Reviews and Letters to Editors and Case Studies