WANG Bing, PEI Guangling, DU Qiyun, CUI Yongfang. THE PREPARATION OF HETEROGENEOUS POLYSULFONE CHELATE FILTER MEMBRANES AND THEIR SORPTION PROPERTIES FOR Cu2+[J]. Acta Polymerica Sinica, 2001,(4):445-449.
WANG Bing, PEI Guangling, DU Qiyun, CUI Yongfang. THE PREPARATION OF HETEROGENEOUS POLYSULFONE CHELATE FILTER MEMBRANES AND THEIR SORPTION PROPERTIES FOR Cu2+[J]. Acta Polymerica Sinica, 2001,(4):445-449.DOI:
Heterogeneous chelate filter membranes with high chelate capcity for Cu2+ have been prepared by using a chelate resin D418 polysulfone (PSF).Various process parameters affecting the properties of the chelate membrane
such as the blending ratio
chelate resin grain size and temperature of solution casting have been wildly studied. The relationship among the chelate amount
pH value and the concentrations of the metallic ion solution were examined.Under appropriate conditions
the chelate filter membrane had a capcity of 700 μg/cm2 for Cu2+.Sorpting isotherm could be expressed by the Freundlich sorption model.The dynamic experiment indicated that the sorption and desorption could be realized simultaneously.