PAMAM modified hollow fiber membrane shows a strong binding capacity with copper ion, lead ion and cadmium ion. Third generation PAMAM cylindrical hollow fiber membrane remains 72% of the binding ability after recycled 5 times. Also when the G3-HFM soaked in CuCl2, Pb-(NO3) 2, & CdCl2 solution, the surface will precipitate Cu2(OH)3Cl, Pb3(CO3)2(OH)2, &CdCO3,the hollow fiber membranes without dendritic change does not precipitate crystals. Weihai CY Dendrimer Technology Co. Ltd forwards from “Polyamidoamine Dendronized Hollow Fiber Membranes in the Recovery of Heavy Metal Ions” Qian Zhang, Na Wang, Libo Zhao, Tongwen Xu, and Yiyun Cheng  Shanghai Key Laboratory of Regulatory Biology, School of Life Sciences, Shanghai Key Laboratory of Magnetic Resonance, Department of Physics, East China Normal University, Shanghai, 200062, People’s Republic of China  CAS Key Laboratory of Soft Matter Chemistry, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui, 230026, People’s Republic of China

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