1. BaCO3 nanoparticles embedded retentive and cation selective membrane for separation/recovery of Mg2 + from natural water sources.
- Author
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Srivastava, Niharika, Joshi, Kuldeep V., Thakur, Amit K., Menon, Shobhana K., and Shahi, Vinod K.
- Subjects
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BARIUM carbonate , *CATIONS , *ARTIFICIAL membranes , *MEMBRANE separation , *MAGNESIUM compounds , *WATER chemistry , *ELECTRODIALYSIS - Abstract
BaCO 3 nanoparticles (NPs) (20 and 100 nm) were prepared using poly(vinyl pyrrolidone) (PVP) as stabilizer. The prepared NPs showed high adsorption capacity for Mg 2 + in presence of other cations (Na + , Ca 2 + etc.). BaCO 3 nanoparticles embedded sulphonated poly(ether sulfone) (SPS) membranes were prepared, which showed Mg 2 + retentive and cation selective properties. These membranes exhibited good thermal, mechanical, and chemical stabilities along with conductivity and ion-exchange capacity due to SPS matrix. Mg 2 + retentive nature of these membranes was attributed to the embedded BaCO 3 NPs. Further, SPS-NPE membrane was assessed suitable for electro-separation process. Electrodialytic studies confirmed very high retention values for Mg 2 + in comparison with Na + and Ca 2 + . The energy consumption of proposed process suggested suitability of these membranes for separation/recovery of Mg 2 + from natural water resources. [ABSTRACT FROM AUTHOR]
- Published
- 2014
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