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231224s2013 xx |||||o 00| ||eng c |
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|a 10.1021/la4017799
|2 doi
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|a pubmed24n0768.xml
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|a (DE-627)NLM230393209
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|a (NLM)23984721
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Chen, Ming
|e verfasserin
|4 aut
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|a Electrospinning of calixarene-functionalized polyacrylonitrile nanofiber membranes and application as an adsorbent and catalyst support
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|c 2013
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 18.04.2014
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|a Date Revised 25.09.2013
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a Polyacrylonitrile (PAN) nanofiber membranes functionalized with calix[8]arenes (C[8]) were successfully prepared by electrospinning of PAN solutions with addition of various calixarenes. Uniform electrospun C[8]/PAN nanofibers were obtained by incorporating three types of calix[8]arenes into the PAN matrix and characterized by scanning electron microscopy (SEM), attenuated total reflection Fourier transform infrared (ATR-FTIR), thermal gravimetric analysis (TGA), and X-ray powder diffraction (XRD). The SEM results showed that the addition of calix[8]arenes resulted in a decrease in the diameter of PAN nanofibers. Static adsorption behavior was studied by using C[8]/PAN nanofibers as an adsorbent and Congo red and Neutral red as model dye molecules. The adsorption of Congo red onto Amide-Cal[8]-15/PAN nanofibers fitted the second-order kinetic model, and the apparent adsorption rate constant was 1.1 × 10(-3) g·mg(-1)·min(-1) at 25 °C. Then, by virtue of electrostatic attraction, as-prepared Au nanoparticles were immobilized on Amide-Cal[8]/PAN nanofibers to form Au/Amide-Cal[8]/PAN composite nanofibers. The catalytic activity of the as-prepared Au/Amide-Cal[8]/PAN composite nanofibers was investigated by monitoring the reduction of Congo red in the presence of NaBH4. The reduction kinetics was explained by the assumption of a pseudo-first-order reaction with regard to Congo red. Au/Amide-Cal[8]/PAN composite nanofibers exhibited high catalytic activity, excellent stability, and convenient recycling
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|a Journal Article
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1 |
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|a Wang, Chengjiao
|e verfasserin
|4 aut
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1 |
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|a Fang, Wei
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Jing
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhang, Wang
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Jin, Gong
|e verfasserin
|4 aut
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| 700 |
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|a Diao, Guowang
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 29(2013), 38 vom: 24. Sept., Seite 11858-67
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
1 |
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|g volume:29
|g year:2013
|g number:38
|g day:24
|g month:09
|g pages:11858-67
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|u http://dx.doi.org/10.1021/la4017799
|3 Volltext
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