Gold-modified ZnO nanocomposites for photo-Fenton-like catalysis of Escherichia coli disinfection

文献类型： 外文期刊

第一作者： Zhang, Jingtao

作者： Zhang, Jingtao;Yao, Jing;Zhai, Mengwan;Liu, Shurui;Geng, Yao;Liu, Beibei;Liu, Bingkun;Cao, Qimin

作者机构：

关键词： Au/ZnO; Nanocomposites; Semiconductors; Fenton-like; Antibacterial activity

期刊名称：MATERIALS LETTERS （ 影响因子：3.574； 五年影响因子：3.197 ）

ISSN： 0167-577X

年卷期： 2022 年 319 卷

页码：

收录情况： SCI

摘要： In this study, gold-modified zinc oxide (Au/ZnO) nanocomposites were fabricated using the solvothermal method. Structure, morphology, and components of Au/ZnO nanomaterials were investigated by XRD, TEM, and XPS analyses, respectively. Results of the UV-Vis analysis manifested a shifting of absorption to light of nano-composites from visible towards red because of the incorporation of Au and its surface plasmon resonance. In addition, an antibacterial test demonstrated that as compared to pure ZnO and ZnO nanocomposites cooperated with other contents of Au, 1/101 Au/ZnO nanocomposites displayed the highest photocatalysis disinfection activity to Escherichia coli cells. Fenton-like and photo-Fenton-like reactions were executed to further explore the effect of 1/101 Au/ZnO nanocomposites, in which the ESR results revealed the producing of hydroxyl radicals that are considered as one of the dominants to antibacterial activity during photocatalytic disinfection process.

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