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231224s2013 xx |||||o 00| ||eng c |
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|a 10.1021/la303855t
|2 doi
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|a eng
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| 100 |
1 |
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|a Huang, Shu
|e verfasserin
|4 aut
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|a Complexes of polydopamine-modified clay and ferric ions as the framework for pollutant-absorbing supramolecular hydrogels
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|c 2013
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|a Text
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|a ƒaComputermedien
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|a Date Completed 08.07.2013
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|a Date Revised 29.01.2013
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a Clay-based functional hydrogels were facilely prepared via a bioinspired approach. Montmorillonite (clay) was exfoliated into single layers in water and then coated with a thin layer of polydopamine (PDOPA) via in situ polymerization of dopamine under basic aqueous conditions. When a small amount of ferric salt was added into aqueous suspensions of the polydopamine-coated clay (D-clay), D-clay and Fe(3+) ions could rapidly self-assemble into three-dimensional networks through the formation of coordination bonds. Consequently, supramolecular hydrogels were formed at very low D-clay contents. Rheological measurements show that the D-clay/Fe(3+) hydrogels exhibit fairly elastic response in low stain range, and have self-healing capability upon removal of applied large stress. More importantly, the hydrogels can be used as adsorbents to effectively remove Rhodamine 6G (Rh6G), an organic pollutant, from water. UV-vis absorption spectra of the Rh6G-loaded hydrogels show bands related to π-π stacking interactions between the aromatic moieties of PDOPA and Rh6G, confirming the formation of PDOPA/Rh6G complex on the surface of D-clay
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|a Journal Article
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|a Yang, Liping
|e verfasserin
|4 aut
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1 |
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|a Liu, Ming
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Phua, Si Lei
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Yee, Wu Aik
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Liu, Wanshuang
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhou, Rui
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Lu, Xuehong
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 29(2013), 4 vom: 29. Jan., Seite 1238-44
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|x 1520-5827
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| 773 |
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|g volume:29
|g year:2013
|g number:4
|g day:29
|g month:01
|g pages:1238-44
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|u http://dx.doi.org/10.1021/la303855t
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