Photochemical behavior of benzo[a]pyrene on soil surfaces under UV light irradiation

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	Photochemical behavior of benzo[a]pyrene on soil surfaces under UV light irradiation
	Zhang, LH ; Li, PJ ; Gong, ZQ ; Adeola, O
刊名	JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA
	2006
卷号	18 期号:6 页码:1226-1232
关键词	photodegradation photocatalysis benzo[a]pyrene UV-irradiation
ISSN号	1001-0742
通讯作者	Li, PJ, Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Peoples R China
中文摘要	The rates of photodegradation and photocatalysis of benzo[a]pyrene (BaP) on soil surfaces under UV light have been studied. Different parameters such as temperature, soil particle sizes, and soil depth responsible for photodegradation, catalyst loads and wavelength of UV irradiation blamed for photocatalysis have been monitored. The results obtained indicated that BaP photodegradation follows pseudo-first-order kinetics. BaP photodegradation was the fastest at 30 degrees C. The rates of BaP photodegradation at different soil particle size followed the order: less than 1 min > less than 0.45 mm > less than 0.25 mm. When the soil depth increased from I mm to 4 mm, the half-life increased from 13.23 d to 17.73 d. The additions of TiO2 or FC2O3 accelerated the photodegradation of BaP, and the photocatalysis of BaP follows pseudo-first-order kinetics. Changes in catalyst loads of TiO2 (0.5%, 1%, 2%, and 3% (wt)) or Fe2O3 (2%, 5%, 7%, and 10% (wt)) did not significantly affect the degradation rates. Both BaP photocatalysis in the presence of TiO2 and Fe2O3 were the fastest at 254 nm UV-irradiation.
学科主题	Environmental Sciences
收录类别	SCI
语种	英语
WOS记录号	WOS:000242222400033
公开日期	2011-09-23
内容类型	期刊论文
源URL	[http://210.72.129.5/handle/321005/54827]
专题	沈阳应用生态研究所_沈阳应用生态研究所_期刊论文
推荐引用方式 GB/T 7714	Zhang, LH,Li, PJ,Gong, ZQ,et al. Photochemical behavior of benzo[a]pyrene on soil surfaces under UV light irradiation[J]. JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,2006,18(6):1226-1232.
APA	Zhang, LH,Li, PJ,Gong, ZQ,&Adeola, O.(2006).Photochemical behavior of benzo[a]pyrene on soil surfaces under UV light irradiation.JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,18(6),1226-1232.
MLA	Zhang, LH,et al."Photochemical behavior of benzo[a]pyrene on soil surfaces under UV light irradiation".JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA 18.6(2006):1226-1232.