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231225s2023 xx |||||o 00| ||eng c |
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|a 10.1080/09593330.2022.2048084
|2 doi
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|a pubmed25n1125.xml
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|a (DE-627)NLM337585830
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|a (NLM)35227172
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|a DE-627
|b ger
|c DE-627
|e rakwb
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| 041 |
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|a eng
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| 100 |
1 |
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|a Long, Xiaojing
|e verfasserin
|4 aut
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| 245 |
1 |
0 |
|a Simultaneous removal of antimony and arsenic by nano-TiO2-crosslinked chitosan (TA-chitosan) beads
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1 |
|c 2023
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| 336 |
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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| 500 |
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|a Date Completed 07.07.2023
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|a Date Revised 18.07.2023
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Antimony (Sb) and arsenic (As), carcinogenic and toxic elements, cause environmental pollution, in addition, the different chemical properties of Sb and As make them difficult to co-removal. In this study, we incorporated of nano-TiO2 in the chitosan matrix to synthesized an efficient adsorption material nano-titania-crosslinked chitosan (TA-chitosan) beads, which was used to simultaneous removal of Sb and As from aqueous solution. TA-chitosan possesses a robust high removal performance for Sb and As under weakly acidic and neutral conditions; however, the removal is significantly inhibited under alkaline pH values. The adsorption kinetics of Sb and As on TA-chitosan conformed to the pseudo-second-order model, indicating that the removal of Sb and As was a chemical adsorption process. The adsorption isotherms of Sb(III/V) and As(III/V) on TA-chitosan follow the Langmuir model, and their maximum adsorption capacities are 70.19, 25.32, 64.52 and 102.89 mg·g-1, respectively. The zeta potential showed that the surface of TA-chitosan was negatively charged over the full pH range upon Sb and As adsorption, demonstrating that negatively charged inner-sphere complexes were formed on TA-chitosan. This work may also provide a new perspective in titanium-chitosan material synthesis and heavy metal ions co-removal
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4 |
|a Journal Article
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4 |
|a Chitosan
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4 |
|a antimony
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4 |
|a arsenic
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| 650 |
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4 |
|a co-adsorption
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4 |
|a nano-TiO2
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7 |
|a Antimony
|2 NLM
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| 650 |
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7 |
|a 9IT35J3UV3
|2 NLM
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| 650 |
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7 |
|a titanium dioxide
|2 NLM
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| 650 |
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7 |
|a 15FIX9V2JP
|2 NLM
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| 650 |
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7 |
|a Arsenic
|2 NLM
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| 650 |
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7 |
|a N712M78A8G
|2 NLM
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| 650 |
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7 |
|a Chitosan
|2 NLM
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| 650 |
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7 |
|a 9012-76-4
|2 NLM
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| 650 |
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7 |
|a Metals, Heavy
|2 NLM
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| 650 |
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7 |
|a Water Pollutants, Chemical
|2 NLM
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| 700 |
1 |
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|a Wang, Tianning
|e verfasserin
|4 aut
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| 700 |
1 |
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|a He, Mengchang
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Environmental technology
|d 1993
|g 44(2023), 19 vom: 01. Juli, Seite 2913-2923
|w (DE-627)NLM098202545
|x 1479-487X
|7 nnas
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| 773 |
1 |
8 |
|g volume:44
|g year:2023
|g number:19
|g day:01
|g month:07
|g pages:2913-2923
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| 856 |
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|u http://dx.doi.org/10.1080/09593330.2022.2048084
|3 Volltext
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