Journal article
A poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP)-based polymer inclusion membrane (PIM) containing LIX84I for the extraction and transport of Cu(II) from its ammonium sulfate/ammonia solutions
D Wang, RW Cattrall, J Li, MIGS Almeida, GW Stevens, SD Kolev
Journal of Membrane Science | ELSEVIER SCIENCE BV | Published : 2017
Abstract
A comparison is made of the use of polymer inclusion membranes (PIMs) containing poly(vinyl chloride) (PVC), cellulose triacetate (CTA) or poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) as the base-polymer, LIX84I as the carrier and 2-nitrophenyloctyl ether (NPOE) as the plasticizer for the extraction of Cu(II) from its ammonium sulfate/ammonia solutions at pH 8.5 and its transport within the membrane. The optimal PIM composition for each base-polymer was determined, and the results showed that the PIMs containing CTA or PVC had an oily surface after extraction unlike the PIMs with PVDF-HFP which were homogenous and with oil-free surfaces. This oily residue indicated the loss of..
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Awarded by National Natural Science Foundation of China
Funding Acknowledgements
The authors dedicate this paper to the memory of Yuzo Baba from the Department of Applied Chemistry of Tokushima University who passed away unexpectedly on February 10, 2017 at the age of 29. He provided valuable suggestions for this research. Duo Wang is grateful for the financial support provided by the National Basic Research Program of China (No. 2014CB643401), National Natural Science Foundation of China (No. 51134007) and China Scholarship Council (No. 201506370136).