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

• Autorzy: Jeon Hee Yeon , Park Mijeong , Han Seungheon , Lee Dong Hoon , Lee Young-In

Identyfikatory

DOI

10.24425/amm.2024.147792

• Języki publikacji: EN

Abstrakty

EN

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.

Słowa kluczowe

EN

ZnO; ZnS; core-shell; chemical transformation; photocatalyst

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2024
• Tom: Vol. 69, iss. 1
• Strony: 91--94
• Opis fizyczny: Bibliogr. 19 poz., fot., rys.

Twórcy

autor

Jeon Hee Yeon

• Seoul National University of Science and Technology, Department of Materials Science and Engineering, Seoul 01811, Republic of Korea

• https://orcid.org/0000-0002-1657-950X

autor

Park Mijeong

• Seoul National University of Science and Technology, Department of Materials Science and Engineering, Seoul 01811, Republic of Korea

• https://orcid.org/0000-0002-4509-0092

autor

Han Seungheon

• Seoul National University of Science and Technology, Department of Materials Science and Engineering, Seoul 01811, Republic of Korea

• https://orcid.org/0009-0005-0092-3619

autor

Lee Dong Hoon

• Seoul National University of Science and Technology, Department of Materials Science and Engineering, Seoul 01811, Republic of Korea

• https://orcid.org/0009-0006-0164-9217

autor

Lee Young-In

• Seoul National University of Science and Technology, Department of Materials Science and Engineering, Seoul 01811, Republic of Korea

• https://orcid.org/0000-0002-9830-8294

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Uwagi

This study was supported by the Research Program funded by the SeoulTech (Seoul National University of Science and Technology).