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231226s2023 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.3c01632
|2 doi
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|a pubmed24n1210.xml
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|a (DE-627)NLM363129294
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|a (NLM)37819843
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|a DE-627
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|e rakwb
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|a eng
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|a Chen, Lihua
|e verfasserin
|4 aut
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|a Preparation of a Magnetic Core-Shell Bioreactor for Oil/Water Separation and Biodegradation
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|c 2023
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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 01.11.2023
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|a Date Revised 18.11.2023
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a With the frequent occurrence of offshore oil spills, the effective separation and treatment of oily wastewater are essential to the environment. In this work, the core-shell bioreactor (abbreviated as Fe3O4/MHNTs-CNFaerogel) was prepared with a core composed of camphor leaf cellulose-based aerogels for loading microorganisms and a shell derived from hydrophobic silane-modified halloysite doping with Fe3O4 for selective absorption of oil and maganetic recycling. The core-shell-structured bioreactor Fe3O4/MHNTs-CNF@aerogel has excellent self-floating properties and can float on water for up to 100 days. The whole core-shell structure not only has excellent oil/water separation performance but also has good microbial degradation performance. By applying it in water containing 5% diesel for the biodegradation test, the biodegradation efficiency of Fe3O4/MHNTs-CNF@aerogel for diesel can reach 82.4% in 10 days. The efficiency was 20% higher than for free microorganisms, and it still had excellent degradation ability after three degradation cycles, with a degradation rate of over 75%. In addition, the result obtained from the study on environmental tolerance shows that Fe3O4/MHNTs-CNF@aerogel possessed a strong tolerance ability under different pH and salinity conditions. The Fe3O4/MHNTs-CNF@aerogel also has superior mechanical properties; i.e., nearly no deformation occurs at 30 kPa. Compared with those conventional oil/water separation materials which can only absorb or separate the oils for water with limited capacity and taking the risk of secondary contamination, our core-shell-structured bioreactor is capable of not only selectively absorbing oil from water through its hydrophobic shell but also degrading it into a nontoxic substance by its microorganism-loaded core, thus showing great potential for practical application in oily wastewater treatment
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Oils
|2 NLM
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|a Qu, Nannan
|e verfasserin
|4 aut
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|a Lu, Haijing
|e verfasserin
|4 aut
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|a Jiang, Shuai
|e verfasserin
|4 aut
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|a Zhang, Bin
|e verfasserin
|4 aut
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|a Hasi, Qi-Meige
|e verfasserin
|4 aut
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|a Zhang, Yuhan
|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 39(2023), 42 vom: 24. Okt., Seite 14891-14903
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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|g volume:39
|g year:2023
|g number:42
|g day:24
|g month:10
|g pages:14891-14903
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|u http://dx.doi.org/10.1021/acs.langmuir.3c01632
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