Removal of various pollutants from wastewaters using an efficient and degradable hypercrosslinked polymer
Zujin Yang, Guifang Wu, Qiuru Li, Hongxia Ai, Xingdong Yao, Hongbing Ji
Abstract
Adsorption is an effective strategy for the removal of pollutants from the wastewater. Herein, a 2-hydroxyterephthalic acid (2-HTA) modified hypercrosslinked polymer (2-HTA-HCP) is successfully synthesized via Friedel-Crafts reactions and used as an adsorbent for the different types of pollutants including organic contaminants and heavy metal ions from wastewater. Excellent adsorption capacities are observed for amines (aniline, p-methylaniline (p-MA), p-chloroaniline (p-CA), and p-aminobenzoic acid (p-ABA)), phenols (phenol, p-chlorophenol (4-CP), Bisphenol A (BPA), 1-Naphthol (1-NP)), dyes (rhodamine B (RhB) and methyl orange (MO)), and metal ions (Pb2+, Hg2+, and Cd2+). The resulting polymer exhibited excellent adsorption performance toward these pollutants. The interaction mechanism has been investigated and confirmed by FTIR and the theoretical calculation results.