The positive effect of formaldehyde on the photocatalytic renoxification of nitrate on TiO2 particles
Yuhan Liu,Xuejiao Wang,Jing Shang,Weiwei Xu,Mengshuang Sheng,and Chunxiang Ye
Yuhan Liu
State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, 5 Yiheyuan Road, Beijing 100871, PR China
Xuejiao Wang
State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, 5 Yiheyuan Road, Beijing 100871, PR China
State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, 5 Yiheyuan Road, Beijing 100871, PR China
Weiwei Xu
State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, 5 Yiheyuan Road, Beijing 100871, PR China
Mengshuang Sheng
State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, 5 Yiheyuan Road, Beijing 100871, PR China
State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, 5 Yiheyuan Road, Beijing 100871, PR China
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Total article views: 2,725 (including HTML, PDF, and XML)
Thereof 2,725 with geography defined
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Total article views: 1,778 (including HTML, PDF, and XML)
Thereof 1,778 with geography defined
and 0 with unknown origin.
Total article views: 947 (including HTML, PDF, and XML)
Thereof 947 with geography defined
and 0 with unknown origin.
In this study, the influence of HCHO on renoxification on nitrate-doped TiO2 particles is investigated by using an experimental chamber. Mass NOx release is suggested to follow the NO−3-NO3·-HNO3-NOx pathway, with HCHO involved in the transformation of NO3· to HNO3 through hydrogen abstraction. Our proposed reaction mechanism by which HCHO promotes photocatalytic renoxification is helpful for deeply understanding the atmospheric photochemical processes and nitrogen cycling.
In this study, the influence of HCHO on renoxification on nitrate-doped TiO2 particles is...
