Experimental Study on Nanometer TiO2 Doped with Fe3+ for Purification Effect of Automobile Exhaust in the Tunnel
This paper presents an experimental approach to study purification effect of automobile exhaust. Sol-gel method was used to prepare Fe3+ modified Titanium dioxide (TiO2). Purification tests were conducted in a self-developed instrument to study catalytic effects of TiO2 doped with different contents of Fe3+ through degradation rate. The modification mechanism was studied by X-ray diffraction (XRD) scanning. Results showed that doping iron ion had improved the light catalytic performance of nanometer through inhibiting the growth of TiO2 grain size. TiO2 doped with 0.1% iron ion showed the best catalytic effect. The degradation rates of CO and CO2, HC and NOX were 6.9%, 7.9%, 2.3% and 14.9% higher than the unmodified TiO2 under ultraviolet light conditions, respectively; 0.6%, 0.6%, 2.3% and 8.2% higher than the unmodified under incandescent light conditions, respectively.
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Supplemental Notes:
- This paper was sponsored by TRB committee AF000(2) Pavement Materials and the Urban Climate.
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Corporate Authors:
500 Fifth Street, NW
Washington, DC United States 20001 -
Authors:
- Pie, Jianzhong
- Du, Hongzhao
- Li, Yanwei
- Ma, Fengxu
- Du, Qunle
- Shi, Xin
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Conference:
- Transportation Research Board 92nd Annual Meeting
- Location: Washington DC, United States
- Date: 2013-1-13 to 2013-1-17
- Date: 2013
Language
- English
Media Info
- Media Type: Digital/other
- Features: Figures; Photos; References;
- Pagination: 12p
- Monograph Title: TRB 92nd Annual Meeting Compendium of Papers
Subject/Index Terms
- TRT Terms: Air quality management; Emission control devices; Exhaust gases; Oxidation catalysts; Purification; Tunnels
- Uncontrolled Terms: Photocatalysts
- Subject Areas: Environment; Highways; Vehicles and Equipment; I15: Environment; I91: Vehicle Design and Safety;
Filing Info
- Accession Number: 01478928
- Record Type: Publication
- Report/Paper Numbers: 13-2563
- Files: TRIS, TRB, ATRI
- Created Date: Apr 19 2013 4:54PM