Organic-inorganic materials containing nanoparticles of zirconium hydrophosphate for baromembrane separation

• Published in: Nanoscale research letters 2015, Vol.10 (1), p.64-64, Article 64
• Main Authors: Dzyazko, Yuliya S, Rozhdestvenskaya, Ludmila M, Zmievskii, Yu G, Vilenskii, Alexander I, Myronchuk, Valerii G, Kornienko, Ludmila V, Vasilyuk, Sergey V, Tsyba, Nikolay N
• Format: Article
• Language: English
• Subjects: Chemistry and Materials Science; Materials Science; Molecular Medicine; Nano; Nano Commentary; Nanochemistry; Nanoscale Science and Technology; Nanotechnology; Nanotechnology and Microengineering; Nanotechnology and nanomaterials (NANO-2014)
• ISSN: 1931-7573; 1556-276X
• DOI: 10.1186/s11671-015-0758-x

Organic-inorganic membranes were obtained by stepwise modification of poly(ethyleneterephthalate) track membrane with nanoparticles of zirconium hydrophosphate. The modifier was inserted inside pores of the polymer, a size of which is 0.33 μm. Inner active layer was formed by this manner. Evolution of morphology and functional properties of the membranes were investigated using methods of porosimetry, potentiometry and electron microscopy. The nanoparticles (4 to 10 nm) were found to form aggregates, which block pores of the polymer. Pores between the aggregates (4 to 8 nm) as well as considerable surface charge density provide significant transport numbers of counter ions (up to 0.86 for Na + ). The materials were applied to baromembrane separation of corn distillery. It was found that precipitate is formed mainly inside the pores of the pristine membrane. In the case of the organic-inorganic material, the deposition occurs onto the outer surface and can be removed by mechanical way. Location of the active layer inside membranes protects it against damage.