2017
DOI: 10.1007/s12221-017-1099-4
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Fabrication of superhydrophobic cellulose/chitosan composite aerogel for oil/water separation

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Cited by 70 publications
(40 citation statements)
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“…Tw ostrategies have been pursued for oil-water separation with chitosan, [92,279] chitosan-cellulose, [280][281][282][283][284] chitosan-graphene oxide, [285] and chitosan-silica: [286] superoleophobic versus superhydrophobic materials.Superoleophobic systems submerged in the aqueous phase take advantage of chitosans hydrophilicity to minimize oil uptake and (nearly) pure water can be recovered from emulsions. [279][280][281][282] In contrast, superhydrophobic chitosan and chitosan composites produced through surface functionalization (fluorination, octadecanethiol, trimethylsilyl, sodium stearate) display high sorption capacities for oil and organic solvents, [92,[283][284][285][286] with performance figures in line with those of silylated freeze-dried cellulose [287] and inherently (super)hydrophobic flexible foams/macroporous gels based on methyltrimethoxysilane. [288] Theoil-water separation application does not depend on the amino groups of chitosan, and the ease of processing (solubility,c ross-linking) is the main argument to use chitosan.…”
Section: Water Purificationmentioning
confidence: 99%
“…Tw ostrategies have been pursued for oil-water separation with chitosan, [92,279] chitosan-cellulose, [280][281][282][283][284] chitosan-graphene oxide, [285] and chitosan-silica: [286] superoleophobic versus superhydrophobic materials.Superoleophobic systems submerged in the aqueous phase take advantage of chitosans hydrophilicity to minimize oil uptake and (nearly) pure water can be recovered from emulsions. [279][280][281][282] In contrast, superhydrophobic chitosan and chitosan composites produced through surface functionalization (fluorination, octadecanethiol, trimethylsilyl, sodium stearate) display high sorption capacities for oil and organic solvents, [92,[283][284][285][286] with performance figures in line with those of silylated freeze-dried cellulose [287] and inherently (super)hydrophobic flexible foams/macroporous gels based on methyltrimethoxysilane. [288] Theoil-water separation application does not depend on the amino groups of chitosan, and the ease of processing (solubility,c ross-linking) is the main argument to use chitosan.…”
Section: Water Purificationmentioning
confidence: 99%
“…Besides hydrogen bonding, the reaction between amino and carboxyl groups took place. is reaction has been applied in several cellulose/chitosan hybrid preparations [25][26][27]. Such chitosan-reinforced MFC cryogels were stable in water.…”
Section: Mfc and Mmfc Morphologymentioning
confidence: 99%
“…Fürd ie Öl-Wasser-Trennung wurden zwei Strategien mit Chitosan, [92,279] Chitosan-Cellulose, [280][281][282][283][284] Chitosan-Graphenoxid [285] und Chitosan-Silica verfolgt: [286] superoleophobe versus superhydrophobe Materialien. Superoleophobe,indie wässrige Phase eingetauchte Systeme machen sich die Hydrophilie des Chitosans zunutze,u md ie Ölaufnahme zu minimieren, sodass (nahezu) reines Wasser aus Emulsionen zurückgewonnen werden kann.…”
Section: Wasseraufbereitungunclassified
“…Superoleophobe,indie wässrige Phase eingetauchte Systeme machen sich die Hydrophilie des Chitosans zunutze,u md ie Ölaufnahme zu minimieren, sodass (nahezu) reines Wasser aus Emulsionen zurückgewonnen werden kann. [279][280][281][282] Chitosan und Chitosan-Komposite mit Superhydrophobie,h ergestellt durch eine Oberflächenfunktionalisierung(Fluorierung,Octadecanthiol, Tr imethylsilyl, Natriumstearat), weisen dagegen hohe Sorptionskapazitäten für Ölu nd organische Lçsungsmittel auf [92,[283][284][285][286] und haben Leistungsdaten, die mit denen von silylierter gefriergetrockneter Cellulose [287] und inhärent (super)hydrophoben, flexiblen Schäumen/makroporçsen Gelen auf Basis von Methyltrimethoxysilan übereinstimmen. [288] Die Anwendung der Öl-Wasser-Trennung ist von den Amino-Angewandte Chemie Aufsätze gruppen des Chitosans unabhängig,d ie einfache Verarbeitung (Lçslichkeit, Vernetzung) ist das Hauptargument fürdie Verwendung von Chitosan.…”
Section: Wasseraufbereitungunclassified