Citation: Yingying Qin, Yichen Guo, Zhangqian Liang, Yanjun Xue, Xiaoli Zhang, Lei Yang, Jian Tian. Au nanorods decorated TiO₂ nanobelts with enhanced full solar spectrum photocatalytic antibacterial activity and the sterilization file cabinet application[J]. Chinese Chemical Letters, ;2021, 32(4): 1523-1526. doi: 10.1016/j.cclet.2020.10.020 shu

Au nanorods decorated TiO₂ nanobelts with enhanced full solar spectrum photocatalytic antibacterial activity and the sterilization file cabinet application

Yingying Qin ^a ,
Yichen Guo ^b ,
Zhangqian Liang ^b ,
Yanjun Xue ^b ,
Xiaoli Zhang ^c ,
Lei Yang ^d ,
Jian Tian ^{b, *,}

a.
Archives Department, China University of Petroleum (East China), Qingdao 266580, China
b.
School of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, China
c.
School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
d.
Shenzhen HUASUAN Technology Co., Ltd., Shenzhen 518055, China

jiantian@sdust.edu.cn

Received Date: 8 September 2020
Revised Date: 1 October 2020
Accepted Date: 16 October 2020
Available Online: 17 October 2020

Figures(4)

TiO₂ photocatalysts have been widely studied and applied for removing bacteria, but its antibacterial efficiency is limited to the ultraviolet (UV) range of the solar spectrum. In this work, we use the gold (Au) nanorods to enhance the visible and near-infrared (NIR) light absorption of TiO₂ NBs, a typical UV light photocatalyst, thus the enhancement of its full solar spectrum (UV, visible and NIR) photocatalytic antibacterial properties is achieved. Preliminary surface plasmon resonance (SPR) enhancement photocatalytic antibacterial mechanism is suggested. On one hand, transverse and longitudinal SPR of Au NRs is beneficial for visible and NIR light utilization. On the other hand, Au NRs combined with TiO₂ NBs to form the heterostructure, which can improve the photogenerated carrier separation and direct electron transfer increases the hot electron concentration while Au NRs as the electron channel can well restrain charge recombination, finally produces the high yield of radical oxygen species and exhibits a superior antibacterial efficiency. Furthermore, we design a sterilization file cabinet with Au NR/TiO₂ NB heterostructures as the photocatalytic coating plates. Our study reveals that Au NR/TiO₂ NB heterostructure is a potential candidate for sterilization of bacteria and archives protection.
- Au nanorods,
- Photocatalytic antibacterial activity,
- Surface plasmon resonance,
- Sterilization file cabinet
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Au nanorods decorated TiO2 nanobelts with enhanced full solar spectrum photocatalytic antibacterial activity and the sterilization file cabinet application

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通讯作者: 陈斌, bchen63@163.com

Au nanorods decorated TiO₂ nanobelts with enhanced full solar spectrum photocatalytic antibacterial activity and the sterilization file cabinet application