Synthesis and Adsorption of Lead Ions by Chitosan–LDHs
Year: 2024
Type: conference-paper
Abstract: With MgCl2 and AlCl3 as raw materials, nano Mg/Al LDHs were synthesized in situ during the process of chitosan gel formation, and then CS/LDHs composite multilayer hydrogels were prepared and characterized. After calcination at high temperature, they were used to adsorb Pb2+. The concentration of Pb2+ was measured using atomic absorption spectroscopy to investigate the adsorption performance of the composite material. The effects of pH value, initial concentration, and adsorption time on the adsorption efficiency were studied through single factor and orthogonal experiments. The results showed that the optimal process conditions for the adsorption of Pb2+ were pH=5, initial concentration of 2.5g/L, adsorption time of 30 minutes, removal rate of 70.65% at adsorption equilibrium, and adsorption capacity of 1150.32mg/g.
Authors: Sha Le, Yajuan Ye, Zhongxin Wu, Yunhua Yang, Yangmei Li, Lihua Cai
Institutions: Wuhan University, Wuhan Technology and Business University
Language: English
Subfield: Water Science and Technology
Field: Environmental Science
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W4403381834