Journal
SEPARATION SCIENCE AND TECHNOLOGY
Volume 54, Issue 17, Pages 2830-2839Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/01496395.2018.1554686
Keywords
Hypercrosslinked lignosulfonate; Friedel?Crafts alkylation reaction; adsorption; heavy metal ions
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Hypercrosslinked functionalized lignosulfonates (CLS) were prepared by Friedel?Crafts alkylation reaction. The structure of CLS without introducing any functional groups and the according adsorption behaviors of Pb(II) were characterized and studied, respectively. Due to increase of specific surface area and abundance exposure of binding sites, the maximum adsorption capacity of CLS was found to be as high as 74.45 mg/g, which was about seven times that of raw lignin. The results provide a new feasible synthesis method for preparing lignin-based materials with porous structures and promising application for the removal of heavy metal ions from wastewater.
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