Photocatalytic degradation of phenanthrene on soil surfaces in the presence of nanometer anatase TiO2 under UV-light

Gu, Jiali, Dong, Dianbo, Kong, Lingxue, Zheng, Yong and Li, Xiaojun 2012, Photocatalytic degradation of phenanthrene on soil surfaces in the presence of nanometer anatase TiO2 under UV-light, Journal of environmental sciences, vol. 24, no. 12, pp. 2122-2126.

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Title Photocatalytic degradation of phenanthrene on soil surfaces in the presence of nanometer anatase TiO2 under UV-light
Author(s) Gu, Jiali
Dong, Dianbo
Kong, Lingxue
Zheng, Yong
Li, Xiaojun
Journal name Journal of environmental sciences
Volume number 24
Issue number 12
Start page 2122
End page 2126
Total pages 5
Publisher Elsevier BV
Place of publication Amsterdam, The Netherlands
Publication date 2012-12-01
ISSN 1001-0742
1878-7320
Keyword(s) nanometer anatase TiO₂
photocatalytic degradation
phenanthrene
soil surfaces
UV-light
Summary The effect of nanometer anatase TiO2 was investigated on the photocatalytic degradation of phenanthrene on soil surfaces under a variety of conditions. After being spiked with phenanthrene, soil samples loaded with different amounts of TiO2 (0 wt.%, 1 wt.%, 2 wt.%, 3 wt.%, and 4 wt.%) were exposed to UV-light irradiation for 25 hr. The results indicated that the photocatalytic degradation of phenanthrene followed the pseudo first-order kinetics. TiO2 significantly accelerated the degradation of phenanthrene with the half-life reduced from 45.90 to 31.36 hr for TiO2 loading of 0 wt.% and 4 wt.%, respectively. In addition, the effects of H2O2, light intensity and humic acid on the degradation of phenanthrene were investigated. The degradation of phenanthrene increased with the concentration of H2O2, light intensity and the concentration of humic acids. It has been demonstrated that the photocatalytic method in the presence of nanometer anatase TiO2 was a very promising technology for the treatments of soil polluted with organic substances in the future.
Language eng
Field of Research 099999 Engineering not elsewhere classified
Socio Economic Objective 970109 Expanding Knowledge in Engineering
HERDC Research category C1 Refereed article in a scholarly journal
HERDC collection year 2012
Persistent URL http://hdl.handle.net/10536/DRO/DU:30052668

Document type: Journal Article
Collection: Institute for Frontier Materials
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