新型ZnO/BiOI杂化纳米花的合成及可见光驱动抗菌活性

doi:10.11896/cldb.201902001

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Abstract The novel 3D heterojunction antibacterial agent ZnO/BiOI hybrid nanoflowers were successfully fabricated by a facile hydrothermal method. A series of techniques were used to characterize the obtained materials, including X-ray powder diffraction, scanning electron microscope, high resolution transmission electron microscopy, Brunauer-Emmett-Teller, X-ray photo-electron spectroscopy. Moreover, the antibacterial activities of the obtained ZnO/BiOI hybrid nanoflowers to Escherichia Coli(E.Coli) under visible light were investigated. The results indicated that ZnO/BiOI heterojunction had the strongest antimicrobial activity against Escherichia Coli(E.Coli)(93%) in comparison to those with ZnO(56%) and BiOI(74%), separately. It was due to the high surface areas, and effective interfacial charge transfer from ZnO to BiOI that facilitated the formation of hydroxy radicals. This study showed that the heterostructure between two different semiconductors played a very important role in the dynamic characteristics of their photogenerated carriers.

Key words： ZnO/BiOI hybrid nanoflowers heterostructure Escherichia Coli antibacterial activities

Published: 31 January 2019

CLC number:

TB33

Fund:This work was supported by National Natural Science Foundation of China for Young Scholar (51802185), Natural Science Basic Research Plan in Shaanxi Province of China (2018JQ5083), Scientific Research Program Funded by Shaanxi Provincial Education Department (17JK0114).

About author:: Junli Liu received her PhD Degree of Material Science from Shaanxi University of Science & Technology in 2013, then she did the research in University of California, Santa Cruz as a visiting scholar in 2016. She is currently a lecturer in School of Materials Science and Engineering, Shaanxi University of Science & Technology. Her research mainly focuses on the controllable preparation and surface modification of nano material, preparation and properties of polyacrylate-based inorganic nanocomposites etc.

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	LIU Junli
	SHAO Jianzhen
	LI Junqi
	LIU Hui
	XIE Qiao

Cite this article:

LIU Junli,SHAO Jianzhen,LI Junqi, et al. Facile Synthesis of Novel ZnO/BiOI Hybrid Nanoflowers with Enhanced
Visible-light Antibacterial Activities[J]. Materials Reports, 2019, 33(2): 205-210.

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http://www.mater-rep.com/EN/10.11896/cldb.201902001 OR http://www.mater-rep.com/EN/Y2019/V33/I2/205

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