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

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 ph...

Full description

Saved in:
Bibliographic Details
Published in:ACS omega 2019-07, Vol.4 (7), p.12853-12859
Main Authors: Nguyen, Son Ngoc, Truong, Thao Kim, You, Sheng-Jie, Wang, Ya-Fen, Cao, Thi Minh, Pham, Viet Van
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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 NO2 conversion yield, and high stability under visible light.
ISSN:2470-1343
2470-1343
DOI:10.1021/acsomega.9b01628