Creation of passivated Nb/N p-n co-doped ZnO nanoparticles and their enhanced photocatalytic performance under visible light illumination. Issue 4 (April 2019)

• Record Type: Journal Article
• Authors: Gao, Shuang; Yang, Weiyi; Xiao, Jun; Li, Bo; Li, Qi
• Is Part Of: Journal of materials science & technology. Volume 35:Issue 4(2019)
• Page Start: 610
• Page End: 614
• Publication Date: 2019-04
• Subjects: Zinc oxide -- Nanoparticles -- Passivated Nb/N p-n Co-doping -- Photocatalyst -- Visible light; Metals -- Periodicals; Materials science -- Periodicals; Materials science; Metals; Periodicals; 620.1105
• DOI: 10.1016/j.jmst.2018.09.056
• Languages: English
• ISSNs: 1005-0302

Abstract

Abstract: 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.