Creation of passivated Nb/N p-n co-doped ZnO nanoparticles and their enhanced photocatalytic performance under visible light illumination

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英文篇名：Creation of passivated Nb/N p-n co-doped ZnO nanoparticles and their enhanced photocatalytic performance under visible light illumination 作者：Shuang ; Gao ; Weiyi ; Yang ; Jun ; Xiao ; Bo ; Li ; Qi ; Li 英文作者：Shuang Gao;Weiyi Yang;Jun Xiao;Bo Li;Qi Li;Division of Energy and Environment,Graduate School at Shenzhen,Tsinghua University;Environment Functional Materials Division,Shenyang National Laboratory for Materials Science,Institute of Metal Research,Chinese Academy of Sciences; 英文关键词：Zinc oxide;;Nanoparticles;;Passivated Nb/N p-n Co-doping;;Photocatalyst;;Visible light 中文刊名：CLKJ 英文刊名：材料科学技术(英文版) 机构：Division of Energy and Environment,Graduate School at Shenzhen,Tsinghua University;Environment Functional Materials Division,Shenyang National Laboratory for Materials Science,Institute of Metal Research,Chinese Academy of Sciences; 出版日期：2019-04-15 出版单位：Journal of Materials Science & Technology 年：2019 期：v.35 基金：supported financially by the Basic Science Innovation Program of Shenyang National Laboratory for Materials Science (Nos.Y4N56R1161 and Y5N56F2161);; the National Key Research and Development Program of China (No.2017YFB0406300);; the Science and Technology Plan of Guangdong Province (Nos.2014B090907002 and 2017B090907004);; the China Postdoctoral Science Foundation (No.2018M631461);; the Science and Technology Plan of Shenzhen City (No.JCYJ20170412171554022) 语种：英文; 页：CLKJ201904019 页数：5 CN：04 ISSN：21-1315/TG 分类号：148-152

摘要

Passivated niobium/nitrogen(Nb-N) p-n co-doped zinc oxide nanoparticles were created by a simple precipitation process with in-situ self-formed NaCl "cage" to confine the nanoparticle growth followed by the heat treatment in a flow of ammonia gas. Enhanced optical absorbance into the visible light region was observed in the Nb/N co-doped ZnO nanoparticle photocatalyst due to the Nb/N co-doping effect.It demonstrated a largely enhanced photocatalytic performance in the disinfection of Escherichia coli bacteria under visible light illumination, which could be attributed to the passivated co-doping of NbN to suppress the photogenerated charge carrier recombination on dopants. This robust approach for passivated p-n co-doping may also be applied to other material systems for a wide range of technical applications.
        Passivated niobium/nitrogen(Nb-N) p-n co-doped zinc oxide nanoparticles were created by a simple precipitation process with in-situ self-formed NaCl "cage" to confine the nanoparticle growth followed by the heat treatment in a flow of ammonia gas. Enhanced optical absorbance into the visible light region was observed in the Nb/N co-doped ZnO nanoparticle photocatalyst due to the Nb/N co-doping effect.It demonstrated a largely enhanced photocatalytic performance in the disinfection of Escherichia coli bacteria under visible light illumination, which could be attributed to the passivated co-doping of NbN to suppress the photogenerated charge carrier recombination on dopants. This robust approach for passivated p-n co-doping may also be applied to other material systems for a wide range of technical applications.

引文

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