Facile Synthesis of Bumpy-Structured ZnO-ZnS Core-Shell Microspheres with Enhanced Photocatalytic Performance

IF 0.7 4区材料科学 Q4 METALLURGY & METALLURGICAL ENGINEERING

Archives of Metallurgy and Materials Pub Date : 2024-04-10 DOI:10.24425/amm.2024.147792

Hee Yeon Jeon, Mijeong Park, Seungheon Han, Dong Hoon Lee, Young‐In Lee

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引用次数: 0

Abstract

Zinc oxide is considered an outstanding photocatalyst candidate, but its low photo-corrosion resistance is a problem to be solved. In the ZnO-ZnS core-shell structure, ZnS acts as a protective layer for the ZnO core, and thus, it can enhance stability and long-term performance. The ZnO-ZnS core-shell structure is synthesized into various nanoscale morphologies with high specific surface areas to improve photocatalytic efficiency. However, they are easily agglomerated and are hard to separate from reaction media. In this study, micro-sized bumpy spheres of ZnO-ZnS core-shell structure were prepared via facile chemical transformation of as-prepared ZnO. After sulfurization of the ZnO template, it was confirmed through SEM, TEM, EDS, and XPS analysis that a uniform ZnS shell layer was formed without significant change in the initial ZnO morphology. The ZnO-ZnS core-shell microsphere has shown superior efficiency and stability in the photocatalytic degradation of Rhodamine B compared with pristine ZnO microspheres

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轻松合成具有增强光催化性能的凹凸结构 ZnO-ZnS 核壳微球

氧化锌被认为是一种优秀的光催化剂候选材料，但其较低的抗光腐蚀性是一个亟待解决的问题。在 ZnO-ZnS 核壳结构中，ZnS 是 ZnO 内核的保护层，因此可以提高稳定性和长期性能。ZnO-ZnS 核壳结构被合成为具有高比表面积的各种纳米级形态，以提高光催化效率。然而，它们很容易团聚，很难从反应介质中分离出来。本研究通过对制备好的 ZnO 进行简单的化学转化，制备了 ZnO-ZnS 核壳结构的微尺寸凹凸球。ZnO 模板硫化后，通过 SEM、TEM、EDS 和 XPS 分析证实形成了均匀的 ZnS 壳层，而 ZnO 的初始形貌没有发生显著变化。与原始 ZnO 微球相比，ZnO-ZnS 核壳微球在光催化降解罗丹明 B 方面表现出更高的效率和稳定性。

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来源期刊

Archives of Metallurgy and Materials 工程技术-冶金工程

CiteScore

1.20

自引率

0.00%

发文量

审稿时长

4.5 months

期刊介绍： The Archives of Metallurgy and Materials is covered in the following Institute for Scientific Information products: SciSearch (the Science Citation Index - Expanded), Research Alert, Materials Science Citation Index, and Current Contents / Engineering, Computing and Technology. Articles published in the Archives of Metallurgy and Materials are also indexed or abstracted by Cambridge Scientific Abstracts.