In situ growth of hollow Cu2O nanosoheres on BiOBr nanosheets and its synergistic photocatalysis-persulfate activation activity

IF 5.4 3区化学 Q1 CHEMISTRY, INORGANIC & NUCLEAR

Inorganic Chemistry Communications Pub Date : 2025-09-25 DOI:10.1016/j.inoche.2025.115567

Zhenqi Liu , Gangya Cheng , Chengyue Han , Yiran Teng , Yanbo Chen , Juan Xu , Tongguang Xu , Fei Teng

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引用次数: 0

Abstract

In this work, uniform hollow Cu₂O nanospheres are in situ grown on BiOBr nanosheets (Cu₂O@BiOBr, CB). The synergistic photocatalysis‑sodium persulfate (PS) activation was utilized to degrade tetracycline (TC) and rhodamine B (RhB). The RhB degradation efficiency of Vis/Cu₂O@BiOBr/PS system was 3.16 and 7.97 times higher than that of Vis/BiOBr/PS system and Vis/BiOBr system, respectively. Theoretical calculations showed that the Cu₂O@BiOBr heterojunction could effectively promote the charge separation of photogenerated electron-hole pairs. For TC, the degradation efficiency reached 90 % at 180 min by Vis/Cu₂O@BiOBr/PS. Furthermore, the toxicity of the degradation products for TC were evaluated by quantitative structure-effect relationship (QSAR), showing that compared to TC, some products have a higher acute toxicity and a higher bioaccumulation factor. As a result, the degraded solution had a higher toxicity to bacteria. This work warns us that the analysis of degradation products is crucial, otherwise, secondary pollution will pose a greater danger to the ecosystem. It is an urgent and crucial need to develop truly safe technology and it is highly desirable to get a complete mineralization technology for environmental sustainability.

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空心Cu2O纳米微球在BiOBr纳米片上的原位生长及其协同光催化-过硫酸盐活化活性

在这项工作中，均匀的空心Cu₂O纳米球在BiOBr纳米片上原位生长（Cu2O@BiOBr， CB）。采用协同光催化-过硫酸钠（PS）活化法降解四环素（TC）和罗丹明B （RhB）。Vis/Cu2O@BiOBr/PS体系对RhB的降解效率分别是Vis/BiOBr/PS体系和Vis/BiOBr体系的3.16倍和7.97倍。理论计算表明Cu2O@BiOBr异质结能有效地促进光生电子-空穴对的电荷分离。对于TC， Vis/Cu2O@BiOBr/PS在180 min的降解效率达到90%。此外，通过定量构效关系（QSAR）评价了降解产物对TC的毒性，结果表明，与TC相比，一些降解产物具有更高的急性毒性和更高的生物蓄积因子。因此，降解后的溶液对细菌具有较高的毒性。这项工作提醒我们，降解产物的分析是至关重要的，否则，二次污染将对生态系统造成更大的危害。开发真正安全的矿化技术是迫切而迫切的需要，获得完整的矿化技术是环境可持续发展的迫切需要。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Inorganic Chemistry Communications 化学-无机化学与核化学

CiteScore

5.50

自引率

7.90%

发文量

1013

审稿时长

53 days

期刊介绍： Launched in January 1998, Inorganic Chemistry Communications is an international journal dedicated to the rapid publication of short communications in the major areas of inorganic, organometallic and supramolecular chemistry. Topics include synthetic and reaction chemistry, kinetics and mechanisms of reactions, bioinorganic chemistry, photochemistry and the use of metal and organometallic compounds in stoichiometric and catalytic synthesis or organic compounds.