Physico-chemical characterization and source tracking of black carbon at a suburban site in Beijing

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 环境纳米材料实验室

	Physico-chemical characterization and source tracking of black carbon at a suburban site in Beijing
	Wang, Hailin; Nie, Lei; Liu, Dan; Gao, Meiping; Wang, Minyan; Hao, Zhengping
刊名	JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA
	2015-07-01
卷号	33 页码:188-194
关键词	Black carbon Characterization Source emission Beijing
英文摘要	Particles from ambient air and combustion sources including vehicle emission, coal combustion and biomass burning were collected and chemically pretreated with the purpose of obtaining isolated BC (black carbon) samples. TEM (transmission electron microscopy) results indicate that BC from combustion sources shows various patterns, and airborne BC appears spherical and about 50 nm in diameter with a homogeneous surface and turbostratic structure. The BET (Barrett-Emmett-Teller) results suggest that the surface areas of these BC particles fall in the range of 3-23 m(2)/g, with a total pore volume of 0.03-0.05 cm(3)/g and a mean pore diameter of 7-53 nm. The nitrogen adsorption-desorption isotherms are indicative of the accumulation mode and uniform pore size. O-2-TPO (temperature programmed oxidation) profiles suggest that the airborne BC oxidation could be classified as the oxidation of amorphous carbon, which falls in the range of 406-490 degrees C with peaks at 418, 423 and 475 degrees C, respectively. Generally, the BC characteristics and source analysis suggest that airborne BC most likely comes from diesel vehicle emission at this site. (C) 2015 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.
研究领域[WOS]	Environmental Sciences
WOS记录号	WOS:000358976000021
公开日期	2016-03-15
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/32714]
专题	生态环境研究中心_环境纳米材料实验室
推荐引用方式 GB/T 7714	Wang, Hailin,Nie, Lei,Liu, Dan,et al. Physico-chemical characterization and source tracking of black carbon at a suburban site in Beijing[J]. JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,2015,33:188-194.
APA	Wang, Hailin,Nie, Lei,Liu, Dan,Gao, Meiping,Wang, Minyan,&Hao, Zhengping.(2015).Physico-chemical characterization and source tracking of black carbon at a suburban site in Beijing.JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,33,188-194.
MLA	Wang, Hailin,et al."Physico-chemical characterization and source tracking of black carbon at a suburban site in Beijing".JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA 33(2015):188-194.