"Memory catalysis": Extending the photocatalytic antibacterial performance of a palladium-modified ZnO nanocomposite

文献类型： 外文期刊

第一作者： Zhang, Jingtao

作者： Zhang, Jingtao;Zhu, Mengzhen;Liu, Shurui;Zhai, Mengwan;Yao, Jing;Wang, Guanghui;Liu, Bingkun;Li, Junyang;Perego, Patrizia;Sun, Xiaodong;Liu, Shurui;Zhang, Jingtao;Liu, Bingkun

作者机构：

关键词： PdO-ZnO nanocomposite; Photocatalysis; Antibacterial; Optical "memory"; Cytotoxicity test

期刊名称：JOURNAL OF WATER PROCESS ENGINEERING （ 影响因子：7.0； 五年影响因子：6.7 ）

ISSN： 2214-7144

年卷期： 2023 年 54 卷

页码：

收录情况： SCI

摘要： In this study, Pd-ZnO nanocomposite was synthesized via the facile solvothermal method. Then, PdO-ZnO was obtained by continuing calcination of the synthesized Pd-ZnO. X-ray Diffraction (XRD), Transmission Electron Microscope (TEM), and X-ray Photoelectron Spectroscopy (XPS) tests showed that Pd was converted to PdO in the process of calcination. The photocatalytic sterilization experiment showed that in the 3 % Pd-ZnO system, 2 x 107 CFU/mL of E. coli was completely killed within 3 h, while 3 % PdO-ZnO took 1.5 h. In electron spin resonance (ESR) tests on PdO-ZnO, The & BULL;OH and & BULL;O2- signals can be detected under light and within 20 min after the end of light. 1 x 105 CFU/mL of E. coli were killed within 1 h by the optical "memory" effect of PdO-ZnO. PdO-ZnO inactivates E. coli by disrupting the membrane structure of bacteria as demonstrated by scanning electron microscopy (SEM) test. PdO-ZnO is non-toxic and can be demonstrated through cytotoxicity experiments on HTT2.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序