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Photocatalytic degradation of phenanthrene on soil surfaces in the presence of nanometer anatase TiO2 under UV-light
Alternative TitlePhotocatalytic degradation of phenanthrene on soil surfaces in the presence of nanometer anatase TiO2 under UV-light
Gu Jiali1; Dong Dianbo2; Kong Lingxue3; Zheng Yong4; Li Xiaojun5
2012
Source PublicationJOURNAL OF ENVIRONMENTAL SCIENCES
ISSN1001-0742
Volume24Issue:12Pages:2122-2126
AbstractThe 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.
Other AbstractThe effect of nanometer anatase TiO_2 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 TiO_2(0wt.%,1wt.%,2wt.%,3wt.%,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.TiO_2 significantly accelerated the degradation of phenanthrene with the half-life reduced from 45.90 to 31.36hr for TiO_2 loading of 0wt.% and 4wt.%,respectively.In addition,the effects of H_2O_2,light intensity and humic acid on the degradation of phenanthrene were investigated.The degradation of phenanthrene increased with the concentration of H_2O_2,light intensity and the concentration of humic acids.It has been demonstrated that the photocatalytic method in the presence of nanometer anatase TiO_2 was a very promising technology for the treatments of soil polluted with organic substances in the future.
KeywordPOLYCYCLIC AROMATIC-HYDROCARBONS HUMIC SUBSTANCES TIO2/WATER INTERFACES CONTAMINATED SOIL SOLID-PHASE PHOTODEGRADATION PHOTOLYSIS PYRENE POLLUTION ATRAZINE nanometer anatase TiO2 photocatalytic degradation phenanthrene soil surfaces UV-light
Indexed ByCSCD
Language英语
Funding Project[Open Foundation of Key Laboratory of Industrial Ecology and Environmental Engineering] ; [Liaoning Doctoral Funds]
CSCD IDCSCD:4710403
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/147645
Collection中国科学院金属研究所
Affiliation1.渤海大学
2.中国科学院金属研究所
3.Deakin Univ, Institute Frontier Mat, Geelong, Vic 3217, Australia
4.辽宁大学
5.中国科学院
Recommended Citation
GB/T 7714
Gu Jiali,Dong Dianbo,Kong Lingxue,et al. Photocatalytic degradation of phenanthrene on soil surfaces in the presence of nanometer anatase TiO2 under UV-light[J]. JOURNAL OF ENVIRONMENTAL SCIENCES,2012,24(12):2122-2126.
APA Gu Jiali,Dong Dianbo,Kong Lingxue,Zheng Yong,&Li Xiaojun.(2012).Photocatalytic degradation of phenanthrene on soil surfaces in the presence of nanometer anatase TiO2 under UV-light.JOURNAL OF ENVIRONMENTAL SCIENCES,24(12),2122-2126.
MLA Gu Jiali,et al."Photocatalytic degradation of phenanthrene on soil surfaces in the presence of nanometer anatase TiO2 under UV-light".JOURNAL OF ENVIRONMENTAL SCIENCES 24.12(2012):2122-2126.
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