Direct observation of macromolecular structures of hurnic acid by AFM and SEM
文献类型:期刊论文
作者 | Chen, Changlun; Wang, Xiangke; Jiang, Hui; Hu, Wenping |
刊名 | COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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出版日期 | 2007-07-20 |
卷号 | 302期号:1-3页码:121-125 |
关键词 | Humic Acid Macromolecular Structure Sem Afm |
ISSN号 | 0927-7757 |
DOI | 10.1016/j.colsurfa.2007.02.014 |
英文摘要 | Humic substances (HSs) can be easily adsorbed on natural solid surface and thereby affect the physicochemical behavior of metal ions in the natural environment. The influence of HSs is mainly attributed to the macromolecular structures and shapes of solution soluble and surface adsorbed HSs. Herein, to our knowledge, we firstly use both AFM and SEM to image and to compare the macromolecular structures of humic acid on the basal-plane surface of mica and silicon. Under our experimental conditions, spherical colloids are formed at low pH and high salt concentrations. while network or linear structures are formed at high pH and low salt concentrations. The shapes of HA are heterogeneous under different natural environmental conditions. The knowledge of macromolecular structures and shapes of HA in the natural environment is significant for the evaluation of metal ions' behavior in HA-metal ion-mineral ternary systems. (C) 2007 Elsevier B.V. All rights reserved. |
语种 | 英语 |
WOS记录号 | WOS:000247192300018 |
出版者 | ELSEVIER SCIENCE BV |
源URL | [http://ir.iccas.ac.cn/handle/121111/61031] ![]() |
专题 | 中国科学院化学研究所 |
通讯作者 | Wang, Xiangke |
作者单位 | 1.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China 2.Chinese Acad Sci, Inst Chem, Beijing 100080, Peoples R China 3.Tianjin Univ, Sch Mat Sci & Engn, Tianjin 300072, Peoples R China |
推荐引用方式 GB/T 7714 | Chen, Changlun,Wang, Xiangke,Jiang, Hui,et al. Direct observation of macromolecular structures of hurnic acid by AFM and SEM[J]. COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,2007,302(1-3):121-125. |
APA | Chen, Changlun,Wang, Xiangke,Jiang, Hui,&Hu, Wenping.(2007).Direct observation of macromolecular structures of hurnic acid by AFM and SEM.COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,302(1-3),121-125. |
MLA | Chen, Changlun,et al."Direct observation of macromolecular structures of hurnic acid by AFM and SEM".COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS 302.1-3(2007):121-125. |
入库方式: OAI收割
来源:化学研究所
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