Investigation on Photocatalytic Removal of NO under Visible Light over Cr-Doped ZnO Nanoparticles | Zendy

Son Ngoc Nguyen | Zendy; Thao Kim Truong | Zendy; ShengJie You | Zendy; YaFen Wang | Zendy; Cao Minh Thi | Zendy; Viet Van Pham | Zendy

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Investigation on Photocatalytic Removal of NO under Visible Light over Cr-Doped ZnO Nanoparticles

Author(s) -

Son Ngoc Nguyen,

Thao Kim Truong,

ShengJie You,

YaFen Wang,

Cao Minh Thi,

Viet Van Pham

Publication year - 2019

Publication title -

acs omega

Language(s) - English

Resource type - Journals

ISSN - 2470-1343

DOI - 10.1021/acsomega.9b01628

Subject(s) - photocatalysis , materials science , visible spectrum , nanoparticle , doping , electron paramagnetic resonance , band gap , photochemistry , degradation (telecommunications) , semiconductor , chemical engineering , wide bandgap semiconductor , nanotechnology , optoelectronics , catalysis , chemistry , organic chemistry , telecommunications , physics , nuclear magnetic resonance , computer science , engineering

Removal of nitrogen oxide pollution has attracted much attention, and photocatalysis is considered as an effective method to treat polluted gas. Currently, modified semiconductors with approximate band gap are used as visible-light-driven photocatalysts. Herein, this is the first investigation of photocatalytic removal of NO under visible light over Cr-doped ZnO nanoparticles (Cr-ZnO NPs). Furthermore, the trapping species experiment and electron spin resonance measurement were conducted to identify the primary reactive factor of the photocatalytic reaction. In this study, Cr-ZnO NPs were synthesized by the sol-gel method with a narrow band gap, enhanced NO photocatalytic degradation performance, low NO 2 conversion yield, and high stability under visible light.

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