Zhenyu Wang, Aijing Zhang, Tingyu Hua, Xin Chen, Mengyuan Zhu, Ziyu Guo, Yanna Song, Guorui Yang, Shanshan Li, Jiangtao Feng, Mingtao Li, Wei Yan
To explore the impact of different functional groups on Hg(II) adsorption, a range of poly(pyrrole methane)s functionalized by -Cl, -CN, -NH2 , -OH and -COOH were synthesized and applied to reveal the interaction between different functional groups and mercury ions in water, and the adsorption mechanism was revealed through combined FT-IR, XPS, and DFT calculations. The adsorption performance can be improved to varying degrees by the incorporation of functional groups. Among them, the oxygen-containing functional groups (-OH and -COOH) exhibit stronger affinity for Hg(II) and can increase the adsorption capacity from 180 mg·g-1 to more than 1400 mg·g-1 at 318 K, with distribution coefficient (Kd ) exceeding 105 mL·g-1 ...
April 29, 2024: Environmental Pollution