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

材料导报

2019, Vol. 33

Issue (2): 205-210 https://doi.org/10.11896/cldb.201902001

无机非金属及其复合材料

新型ZnO/BiOI杂化纳米花的合成及可见光驱动抗菌活性

刘俊莉¹, 邵建真¹, 李军奇¹, 刘辉¹, 谢乔²

1 陕西科技大学材料科学与工程学院,西安 710021
2 西安超码科技有限公司,西安 710021

Facile Synthesis of Novel ZnO/BiOI Hybrid Nanoflowers with Enhanced
Visible-light Antibacterial Activities

LIU Junli¹, SHAO Jianzhen¹, LI Junqi¹, LIU Hui¹, XIE Qiao²

1 School of Materials Science and Engineering, Shaanxi University of Science & Technology, Xi’an 710021
2 Supercode Technology Co., Ltd, Xi’an 710021

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摘要通过简单的水热法成功制备了新型三维异质结抗菌剂ZnO/BiOI杂化纳米花。采用X射线粉末衍射仪、扫描电镜、高分辨透射电镜、Bru-nauer-Emmett-Teller、X射线光电子能谱仪等对所得材料进行了表征。此外,研究了ZnO/BiOI杂化纳米花在可见光下对大肠杆菌(E.Coli)的抗菌活性。结果表明,与ZnO(56％)和BiOI(74％)相比,ZnO/BiOI异质结对大肠杆菌(E.Coli)的抗菌活性最强(93％)。这是由于ZnO/BiOI异质结高的比表面积,以及电荷从ZnO表面有效地转移到BiOI表面,有助于形成羟基自由基。研究表明,两种不同半导体之间的异质结构对于其光生载流子的动态特性起着非常重要的作用。

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关键词: ZnO/BiOI杂化纳米花异质结大肠杆菌抗菌活性

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

发布日期: 2019-01-31

ZTFLH:

TB33

基金资助: 国家自然科学基金青年基金项目(51802185);陕西省自然科学基础研究计划项目(2018JQ5083);陕西省教育厅专项科研计划项目(17JK0114)

作者简介: 刘俊莉,陕西科技大学材料学院讲师,硕士研究生导师。liujunli042@163.com

引用本文:

刘俊莉, 邵建真, 李军奇, 刘辉, 谢乔. 新型ZnO/BiOI杂化纳米花的合成及可见光驱动抗菌活性[J]. 材料导报, 2019, 33(2): 205-210.
LIU Junli, SHAO Jianzhen, LI Junqi, LIU Hui, XIE Qiao. Facile Synthesis of Novel ZnO/BiOI Hybrid Nanoflowers with Enhanced
Visible-light Antibacterial Activities. Materials Reports, 2019, 33(2): 205-210.

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

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