Concentration and characterization of groundwater colloids from the northwest edge of Sichuan basin, China

doi:10.1016/j.colsurfa.2017.08.032

CORC > 化学研究所 > 中国科学院化学研究所

	Concentration and characterization of groundwater colloids from the northwest edge of Sichuan basin, China
	Wang, Kaifeng 1; Zhao, Yifan 2; Yang, Zhuanwei 1; Lin, Zhimao 1; Tan, Zhaoyi 3; Du, Liang 3; Liu, Chunli 1
刊名	COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
	2018-01-20
卷号	537 页码:85-91
关键词	Groundwater Colloids Cross-flow Ultrafiltration Morphologies Mineralogical Composition Dom Bacteria
ISSN号	0927-7757
DOI	10.1016/j.colsurfa.2017.08.032
英文摘要	Natural groundwater colloids are significantly important since they are closely related with toxic substances migration in subsurface systems. In this paper, a cross-flow ultrafiltration (CFUF) system equipped with 100 kDa cartridges was developed to enrich groundwater colloids and multiple analytical techniques were used to characterize colloid properties. Analytical techniques included scanning electron microscopy (SEM), atomic force microscopy (AFM), X-ray diffraction (XRD), transmission electron microscopy (TEM) with energy dispersive X-ray spectra (EDS), excitation-emission matrix (EEM) fluorescence spectra, inverted fluorescence microscopy (IFM), and 16S rDNA sequencing. SEM and AFM results indicated that the mean diameter and height of colloids were 322 +/- 90 nm and 10.4 +/- 2.1 nm respectively and two different morphologies of colloids existed which seem to be hollow and platy structure. XRD analysis showed that the mineralogical composition of inorganic colloids consisted of albite (NaAlSi3O8), orthoclase (KAlSi3O8), clinochlore ((Mg,Fe)(6)(Si,Al)(4)O-10(OH)(8), lepidocrocite ((FeO)-O-III(OH)), muscovite (KAl2(Si3Al)O-10(OH,F)(2)), calcite (CaCO3) and quartz (SiO2), most of which was confirmed by TEM-EDS information. Different types of dissolved organic matter (DOM) were characterized by EEM fluorescence spectra, while a larger fraction of 'protein-like' fluorescent DOM was found. Bacteria was observed under 488 nm laser excitation by IFM and 16S rDNA sequencing revealed that Thermomonas was the most likely genus the bacteria may belong to.
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000417068300011
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/45215]
专题	中国科学院化学研究所
通讯作者	Liu, Chunli
作者单位	1.Peking Univ, Coll Chem & Mol Engn, Fundamental Sci Lab Radiochem & Radiat Chem, Beijing Natl Lab Mol Sci, Beijing 100871, Peoples R China 2.Peking Univ, Sch Life Sci, Biodynam Opt Imaging Ctr BIOPIC, Beijing 100871, Peoples R China 3.China Acad Engn Phys, Inst Nucl Phys & Chem, Mianyang 621900, Peoples R China
推荐引用方式 GB/T 7714	Wang, Kaifeng,Zhao, Yifan,Yang, Zhuanwei,et al. Concentration and characterization of groundwater colloids from the northwest edge of Sichuan basin, China[J]. COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,2018,537:85-91.
APA	Wang, Kaifeng.,Zhao, Yifan.,Yang, Zhuanwei.,Lin, Zhimao.,Tan, Zhaoyi.,...&Liu, Chunli.(2018).Concentration and characterization of groundwater colloids from the northwest edge of Sichuan basin, China.COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,537,85-91.
MLA	Wang, Kaifeng,et al."Concentration and characterization of groundwater colloids from the northwest edge of Sichuan basin, China".COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS 537(2018):85-91.