Affiliation:
1. School of Pharmacy, North China University of Science and Technology, Tangshan 063210, China
2. College of Chemistry, Beijing Normal University, Beijing 100875, China
Abstract
Polyethersulfone-sulfonated polyethersulfone (PES-SPES)/NaY zeolite/nylon sandwich structure membranes were prepared and used to adsorb Cu2+ from water. The adsorption kinetics, adsorption isotherm, dynamic adsorption experiment, and reusability were discussed. The experimental data showed that the Langmuir isotherm model, Dubinin–Radushkevich (D-R) isotherm model, and the pseudo-first-order kinetic model can well represent the adsorption of Cu2+ on the membrane, indicating an ion exchange mechanism, with the maximum adsorption capacity of 111.25 mg·g−1. Repeatability experiments show that the sandwich film still has good adsorption performance after five times of adsorption and desorption. The as-prepared membrane showed considerable separation performance in removing Cu2+ from aspirin solution, providing a feasible method to remove heavy metals from drugs.
Funder
Natural Science Foundation Steel and Iron Foundation of Hebei Province of China
National Natural Science Foundation of China
PhD Startup Program of North China University of Science and Technology
Subject
Filtration and Separation,Analytical Chemistry
Cited by
2 articles.
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