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

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Journal of Materials Science & Technology 2019年第4期35卷 610-614页

作者： Shuang Gao Weiyi Yang Jun Xiao Bo Li Qi Li Division of Energy and Environment Graduate School at ShenzhenTsinghua University Environment Functional Materials Division Shenyang National Laboratory for Materials ScienceInstitute of Metal ResearchChinese Academy of Sciences

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 *** 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.

关键词： Zinc oxide Nanoparticles passivated Nb/N p-n Co-doping Photocatalyst Visible light

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A first-principles study on zigzag phosphorene nanoribbons terminated by transition metal atoms

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Chinese Physics B 2021年第2期30卷 476-480页

作者：杨帅王志勇戴学琼肖剑荣龙孟秋 College of Science Guilin University of TechnologyGuilin 541008China Modern Education Technology Center Guilin University of TechnologyGuilin 541008China Hunan Key Laboratory of Super Micro-structure and Ultrafast Process Central South UniversityChangsha 410083China

We have investigated the electronic and magnetic properties of zigzag phosphorene nanoribbons(ZPNRs)with transition metal(TM)passivated atoms,it can be found that the ZPNRs with TM passivated atoms exhibit different magnetisms except for the Ni-passivated ***,the results show that the magnetic moments of ZPNRs with TM passivated atoms are larger than that of ZPNRs with other passivated non-metals/***,it can be found that Fe-passivated ZPNR exhibits magnetic semiconducting character,which provides the possbility for the application of phosphorene in information *** Mn-passivated ZPNRs,it exhibits the *** results may be useful for potential applications of phosphorene in electronic and high-performance spintronic devices.

关键词： phosphorene first-principles calculations half-metallicity passivated

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