Synthesis of N-Doped TiO2 for Efficient Photocatalytic Degradation of Atmospheric NOx

Khan, TT; Bari, GAKMR; Kang, H-J; Lee, T-G; Park, J-W; Hwang, HJ; Hossain, SM; Mun, JS; Suzuki, N; Fujishima, A; Kim, J-H; Shon, HK; Jun, Y-S

Synthesis of N-Doped TiO2 for Efficient Photocatalytic Degradation of Atmospheric NOx

Khan, TT Bari, GAKMR Kang, H-J Lee, T-G Park, J-W Hwang, HJ Hossain, SM Mun, JS Suzuki, N Fujishima, A Kim, J-H Shon, HK Jun, Y-S

Permalink

Publisher:: MDPI AG
Publication Type:: Journal Article
Citation:: Catalysts, 2021, 11, (1), pp. 1-13
Issue Date:: 2021-01-14

Open Access

Copyright Clearance Process

Recently Added
In Progress
Open Access

This item is open access.

Adobe PDF

Download full textAdobe PDF (4 MB)

View on publisher's site

View statistics

Full metadata record

Field	Value	Language
dc.contributor.author	Khan, TT
dc.contributor.author	Bari, GAKMR
dc.contributor.author	Kang, H-J
dc.contributor.author	Lee, T-G
dc.contributor.author	Park, J-W
dc.contributor.author	Hwang, HJ
dc.contributor.author	Hossain, SM
dc.contributor.author	Mun, JS
dc.contributor.author	Suzuki, N
dc.contributor.author	Fujishima, A
dc.contributor.author	Kim, J-H
dc.contributor.author	Shon, HK
dc.contributor.author	Jun, Y-S
dc.date.accessioned	2022-05-03T04:39:55Z
dc.date.available	2022-05-03T04:39:55Z
dc.date.issued	2021-01-14
dc.identifier.citation	Catalysts, 2021, 11, (1), pp. 1-13
dc.identifier.issn	2073-4344
dc.identifier.issn	2073-4344
dc.identifier.uri	http://hdl.handle.net/10453/156931
dc.description.abstract	Titanium oxide (TiO2) is a potential photocatalyst for removing toxic NOx from the atmosphere. Its practical application is, however, significantly limited by its low absorption into visible light and a high degree of charge recombination. The overall photocatalytic activity of TiO2 remains too low since it can utilize only about 4–5% of solar energy. Nitrogen doping into the TiO2 lattice takes advantage of utilizing a wide range of solar radiation by increasing the absorption capability towards the visible light region. In this work, N-doped TiO2, referred to as TC, was synthesized by a simple co-precipitation of tri-thiocyanuric acid (TCA) with P25 followed by heat treatment at 550 degrees C. The resulting nitrogen doping increased the visible-light absorption and enhanced the separation/transfer of photo-excited charge carriers by capturing holes by reduced titanium ions. As a result, TC samples exhibited excellent photocatalytic activities of 59% and 51% in NO oxidation under UV and visible light irradiation, in which the optimum mass ratio of TCA to P25 was found to be 10.
dc.language	English
dc.publisher	MDPI AG
dc.relation.ispartof	Catalysts
dc.relation.isbasedon	10.3390/catal11010109
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	0306 Physical Chemistry (incl. Structural)
dc.title	Synthesis of N-Doped TiO2 for Efficient Photocatalytic Degradation of Atmospheric NOx
dc.type	Journal Article
utslib.citation.volume	11
utslib.for	0306 Physical Chemistry (incl. Structural)
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - CTWW - Centre for Technology in Water and Wastewater Treatment
utslib.copyright.status	open_access	*
pubs.consider-herdc	false
dc.date.updated	2022-05-03T04:39:52Z
pubs.issue	1
pubs.publication-status	Published
pubs.volume	11
utslib.citation.issue	1

Abstract:

Titanium oxide (TiO2) is a potential photocatalyst for removing toxic NOx from the atmosphere. Its practical application is, however, significantly limited by its low absorption into visible light and a high degree of charge recombination. The overall photocatalytic activity of TiO2 remains too low since it can utilize only about 4–5% of solar energy. Nitrogen doping into the TiO2 lattice takes advantage of utilizing a wide range of solar radiation by increasing the absorption capability towards the visible light region. In this work, N-doped TiO2, referred to as TC, was synthesized by a simple co-precipitation of tri-thiocyanuric acid (TCA) with P25 followed by heat treatment at 550 degrees C. The resulting nitrogen doping increased the visible-light absorption and enhanced the separation/transfer of photo-excited charge carriers by capturing holes by reduced titanium ions. As a result, TC samples exhibited excellent photocatalytic activities of 59% and 51% in NO oxidation under UV and visible light irradiation, in which the optimum mass ratio of TCA to P25 was found to be 10.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/156931