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

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	Photocatalytic degradation of phenanthrene on soil surfaces in the presence of nanometer anatase TiO2 under UV-light
其他题名	Photocatalytic degradation of phenanthrene on soil surfaces in the presence of nanometer anatase TiO2 under UV-light
	Gu Jiali 1; Dong Dianbo 2; Kong Lingxue 3; Zheng Yong 4; Li Xiaojun 5
	2012
发表期刊	JOURNAL OF ENVIRONMENTAL SCIENCES
ISSN	1001-0742
卷号	24 期号:12 页码:2122-2126
摘要	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.
其他摘要	The 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.
关键词	POLYCYCLIC 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
收录类别	CSCD
语种	英语
资助项目	[Open Foundation of Key Laboratory of Industrial Ecology and Environmental Engineering] ; [Liaoning Doctoral Funds]
CSCD记录号	CSCD:4710403
引用统计	被引频次：5[CSCD] [CSCD记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/147645
专题	中国科学院金属研究所
作者单位	1.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
推荐引用方式 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.