Visible-light-driven deep oxidation of NO over Fe doped TiO2 catalyst: Synergic effect of Fe and oxygen vacancies - Details

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Abstract：

A　Fe　doped　TiO2　catalyst　(Fe-TiO2)　was　evaluated　for　NO　oxidation　reaction　under　visible　light　irradiation.　The　Fe-TiO2　not　only　exhibited　better　catalytic　activity　and　stability,　but　also　suppressed　the　production　of　nitrogen　dioxide　(NO2)　than　the　undoped　TiO2.　The　results　of　in　situ　DRIFTS　indicated　that　visible　light　benefited　the　adsorption　and　activation　of　NO　at　Fe　sites　(Fe-(NO)2)　and　Ti　sites　(Ti3+-NO)　as　well　as　the　formation　of　active　intermediates　(e.g.　Fe3+-NO3−　and　Ti4+-NO−).　After　EPR,　DRS,　PL　and　XPS　testing,　it　was　proposed　that　incorporating　Fe　ions　into　TiO2　induced　the　formation　of　more　oxygen　vacancies　(OVs),　while　visible　light　further　facilitated　this　process,　resulting　in　an　enhanced　adsorption　&　activation　of　NO　and　also　a　promoted　formation　of　reactive　oxygen　species　(ROS).　Thus,　a　strengthened　photo-driven　effect　for　oxidizing　NO　into　NO2−　and　NO3−　occurred　on　Fe-TiO2.　©　2020　Elsevier　B.V.

Keyword：

Fe-TiO2; NO oxidation; O2 activation; Oxygen vacancies; Photo behavior

Community：

[ 1 ] [Cheng, G.]Research Institute of Photocatalysis, State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou, 350002, China
[ 2 ] [Cheng, G.]Key Laboratory of Eco-materials Advanced Technology (Fuzhou University), Fujian Province University, Fuzhou, 350002, China
[ 3 ] [Liu, X.]Research Institute of Photocatalysis, State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou, 350002, China
[ 4 ] [Liu, X.]Key Laboratory of Eco-materials Advanced Technology (Fuzhou University), Fujian Province University, Fuzhou, 350002, China
[ 5 ] [Song, X.]Research Institute of Photocatalysis, State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou, 350002, China
[ 6 ] [Song, X.]Key Laboratory of Eco-materials Advanced Technology (Fuzhou University), Fujian Province University, Fuzhou, 350002, China
[ 7 ] [Chen, X.]Research Institute of Photocatalysis, State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou, 350002, China
[ 8 ] [Dai, W.]Research Institute of Photocatalysis, State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou, 350002, China
[ 9 ] [Dai, W.]Key Laboratory of Eco-materials Advanced Technology (Fuzhou University), Fujian Province University, Fuzhou, 350002, China
[ 10 ] [Yuan, R.]Research Institute of Photocatalysis, State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou, 350002, China
[ 11 ] [Yuan, R.]Key Laboratory of Eco-materials Advanced Technology (Fuzhou University), Fujian Province University, Fuzhou, 350002, China
[ 12 ] [Fu, X.]Research Institute of Photocatalysis, State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou, 350002, China

Reprint 's Address：

[Dai, W.]Research Institute of Photocatalysis, State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou UniversityChina

Email：

daiwenxin@fzu.edu.cn

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Source ：

Applied Catalysis B: Environmental

ISSN： 0926-3373

Year： 2020

Volume： 277

1 9 . 5 0 3

JCR@2020

2 0 . 3 0 0

JCR@2023

ESI HC Threshold：160

JCR Journal Grade：1

CAS Journal Grade：1

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WoS CC Cited Count：

SCOPUS Cited Count： 192

ESI Highly Cited Papers on the List： 0 Unfold All

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Chinese Cited Count：

30 Days PV： 0

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