Self‐Promoted Hydroxyl Radical Releasing Magnetic Zn@Fe Particles

Self‐Promoted Hydroxyl Radical Releasing Magnetic Zn@Fe Particles

Small

10.1002/smll.202310856

https://doi.org/10.1002/smll.202310856

Guangshun Yi, Shujun Gao, Arunmozhiarasi Armugam, Siti Nurhanna Riduan, Siew Ping Teong, Xiukai Li, Jinquan Wang, Shook Pui Chan, Hongfang Lu, Jackie Y. Ying, Yugen Zhang

20 February 2024

Yi, G., Gao, S., Armugam, A., Riduan, S. N., Teong, S. P., Li, X., Wang, J., Chan, S. P., Lu, H., Ying, J. Y., & Zhang, Y. (2024). Self‐Promoted Hydroxyl Radical Releasing Magnetic Zn@Fe Particles. Small, 20(29). Portico. https://doi.org/10.1002/smll.202310856

AbstractSemiconductor photocatalysts, such as TiO2 and ZnO, have garnered significant attention for their ability to generate hydroxyl radicals, offering various practical applications. However, the reliance on UV light to facilitate electron‐hole separation for hydroxyl radical production poses limitations. In this study, a novel approach is presented utilizing Zn@Fe core/shell particles capable of generating hydroxyl radicals without external energy input. The generation process involves electron donation from Zn to O2, resulting in the formation of radical species .O2−/H2O2, followed by Fe‐catalyzed conversion of H2O2 into hydroxyl radicals through the Fenton reaction. The release of .OH imparts good antimicrobial and antiviral properties to the Zn@Fe particles. Furthermore, the inclusion of Fe confers magnetic properties to the material. This dual functionality holds promise for diverse potential applications for the Zn@Fe particles.

Publisher Copyright

This research / project is supported by the National Research Foundation - Competitive Research Programme
Grant Reference no. : NRF-CRP19-2017-02

This is the peer reviewed version of the following article: Yi, G., Gao, S., Armugam, A., Riduan, S. N., Teong, S. P., Li, X., Wang, J., Chan, S. P., Lu, H., Ying, J. Y., & Zhang, Y. (2024). Self‐Promoted Hydroxyl Radical Releasing Magnetic Zn@Fe Particles. Small, 20(29). Portico. https://doi.org/10.1002/smll.202310856 , which has been published in final form at https://doi.org/10.1002/smll.202310856. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited.

https://oar.a-star.edu.sg/communities-collections/articles/22935

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Institute of Sustainability for Chemicals, Energy and Environment