Removal of various pollutants from wastewaters using an efficient and degradable hypercrosslinked polymer
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.
