Journal
JOURNAL OF COLLOID AND INTERFACE SCIENCE
Volume 533, Issue -, Pages 182-189Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2018.08.073
Keywords
Sodium alginate; Zirconium ion; Hydrophobic and oleophilic foam; Oil adsorption and cleanup
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Funding
- Natural Science Key Project of the Jiangsu Higher Education Institutions [15KJA220001]
- Jiangsu Province Six Talent Peaks Project [2016-XCL-043]
- Natural Science Foundation of Jiangsu Province Youth Fund [BK20170919]
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Hydrophobic modification of sodium alginate (SA) foams via a simple freeze-drying and post cross-linking induced by zirconium (Zr) ions was developed. All results demonstrated that Zr ions not only constructed surface microstructure but also lowered surface energy of foams, leading to the hydrophobic character. Hydrophobic and oleophilic foams showed excellent adsorption capacities for different oils and organic solvents (11.2-25.9 g/g). Furthermore, SA solution can be also coated on porous substrates, such as melamine sponges (MS) and Nylon strainers (NS), to give hydrophobic modification by Zr ion crosslinking. These excellent performances made them a promising for oil adsorption and cleanup. (C) 2018 Elsevier Inc. All rights reserved.
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