A Green Method to Fabricate Polyethyleneimine-Alginate Multilayer Coatings Modified Polyurethane Foam for Cu2+ Adsorption from Aqueous Solution. Issue 4 (4th March 2019)

• Record Type: Journal Article
• Authors: Pan, Ying; Zhao, Hongting
• Is Part Of: Polymer-plastics technology and materials. Volume 58:Issue 4(2019)
• Page Start: 384
• Page End: 393
• Publication Date: 2019-03-04
• Subjects: Adsorption -- Cu2+ -- layer-by-layer self-assembly -- polyurethane foam; Polymers -- Periodicals; Polymerization -- Periodicals; Plastics -- Periodicals; Plastics; Polymerization; Polymers; Periodicals; 668
• DOI: 10.1080/03602559.2018.1471715
• Languages: English
• ISSNs: 2574-0881

Abstract

ABSTRACT: In this study, flexible polyurethane foam (FPUF) was modified with bio-based coatings composed of polyethylenimine (PEI) and alginate (ALG), fabricated by layer-by-layer (LbL) self-assembly. LbL self-assembled coatings modified FPUFs were studied for their potentials for removing Cu 2+ ions from aqueous solutions by using batch adsorption technique, as a function of assembled bilayers number, pH value, carrier amount and adsorption time. The maximum adsorption capacity of the modified FPUF was shown to be 54 mg/g for Cu 2+ . Results suggested that the LbL self-assembly could potentially be a promising cost-effective technique for fabricating advanced adsorbent materials for removing pollutants from wastewater. GRAPHICAL ABSTRACT: