期刊
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
卷 35, 期 4, 页码 610-614出版社
JOURNAL MATER SCI TECHNOL
DOI: 10.1016/j.jmst.2018.09.056
关键词
Zinc oxide; Nanoparticles; Passivated Nb/N p-n Co-doping; Photocatalyst; Visible light
资金
- Basic Science Innovation Program of Shenyang National Laboratory for Materials Science [Y4N56R1161, Y5N56F2161]
- National Key Research and Development Program of China [2017YFB0406300]
- Science and Technology Plan of Guangdong Province [2014B090907002, 2017B090907004]
- China Postdoctoral Science Foundation [2018M631461]
- Science and Technology Plan of Shenzhen City [JCYJ20170412171554022]
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 Nb-N 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. (C) 2019 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
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