Adsorption behavior of tightly bound extracellular polymeric substances on model organic surfaces under different pH and cations with surface plasmon resonance | |
Zhang, Peng1; Chen, You-Peng1,2; Guo, Jin-Song1,2; Shen, Yu2; Yang, Ji-Xiang2; Fang, Fang1; Li, Chun1; Gao, Xu1; Wang, Gui-Xue3 | |
刊名 | WATER RESEARCH |
2014-06-15 | |
卷号 | 57页码:31-39 |
关键词 | Adsorption Extracellular Polymeric Substances Self-assembled Monolayer Surface Plasmon Resonance |
ISSN号 | 0043-1354 |
DOI | 10.1016/j.watres.2014.03.018 |
英文摘要 | Tightly bound extracellular polymeric substances (TB-EPS) play a substantial role on microbial aggregates, which can promote microbial cells to aggregate and adhere onto the carrier in bioreactor. However, the attachment and adsorption of TB-EPS on different surfaces were awaited to be elucidated. In this study, four self-assembled monolayers (SAMs) carrying methyl (CH3-SAM), amino (NH2-SAM), hydroxyl (OH-SAM), and carboxyl (COOH-SAM) terminal groups were prepared to model different surfaces. TB-EPS adsorption on these surfaces under different pH conditions and additional cations were investigated using surface plasmon resonance. The adsorption of TB-EPS dramatically decreased with the decreasing pH values. CH3-SAM surface achieved the maximum adsorption at the same condition. Na+ promoted the TB-EPS adsorbed on COOH-SAM surface. The Ca2+-mediated complexes were attracted by COOH-SAM and repelled by NH2-SAM, respectively. The adsorptions of TB-EPS on the four SAM surfaces were significantly increased by adding Fe3+. These results demonstrated that the TB-EPS adsorption on the organic surfaces were dependent on the pH and cation of solution. (C) 2014 Elsevier Ltd. All rights reserved. |
资助项目 | National Natural Science Foundation of China[51108482] ; National Natural Science Foundation of China[51178484] ; National Natural Science Foundation of China[51278509] ; Chongqing Science and Technology Commission (cstc)[cstc2012ggB20002] ; Public Experiment Center of State Bioindustrial Base (Chongqing) |
WOS研究方向 | Engineering ; Environmental Sciences & Ecology ; Water Resources |
语种 | 英语 |
出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
WOS记录号 | WOS:000337261400004 |
内容类型 | 期刊论文 |
源URL | [http://119.78.100.138/handle/2HOD01W0/758] |
专题 | 水质生物转化研究中心 |
作者单位 | 1.Chongqing Univ, MOE, Key Lab Three Gorges Reservoir Reg Ecoenvironm, Chongqing 400045, Peoples R China 2.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Key Lab Reservoir Aquat Environm, Chongqing 400714, Peoples R China 3.Chongqing Univ, Coll Bioengn, Chongqing 400045, Peoples R China |
推荐引用方式 GB/T 7714 | Zhang, Peng,Chen, You-Peng,Guo, Jin-Song,et al. Adsorption behavior of tightly bound extracellular polymeric substances on model organic surfaces under different pH and cations with surface plasmon resonance[J]. WATER RESEARCH,2014,57:31-39. |
APA | Zhang, Peng.,Chen, You-Peng.,Guo, Jin-Song.,Shen, Yu.,Yang, Ji-Xiang.,...&Wang, Gui-Xue.(2014).Adsorption behavior of tightly bound extracellular polymeric substances on model organic surfaces under different pH and cations with surface plasmon resonance.WATER RESEARCH,57,31-39. |
MLA | Zhang, Peng,et al."Adsorption behavior of tightly bound extracellular polymeric substances on model organic surfaces under different pH and cations with surface plasmon resonance".WATER RESEARCH 57(2014):31-39. |
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