S.E. Cahyaningrum, N. Herdyastuti, A. Firdausa, D. Yanrita
The composite membrane was produced by mixing the chitosan and sodium alginate solutions followed glutaraldehyde as a crosslinking agent for filtration of Ca2+ ion, phosphate ion, sodium salicylate, urea, and albumin. The membranes were characterized by FTIR to verify the functional group, tensile testing to test their mechanical stability, the surface morphology analysis, and application of membrane for filtration that minerals. The results showed that the mechanical properties of the membrane the higher the concentration of chitosan in the membrane, the higher the value of modulus young. The morphology analysis showed that this membrane has a diameter of the pore in range nanopore, included in the range of ultrafiltration membrane. The membrane of chitosan – glutaraldehyde- alginate was applied for the filtration some minerals with a variety of concentrations. This membrane could filtration Ca2+ and phosphate ion, sodium salicylate, urea and albumins were 5.51 mmol/L; 39.27 mg/L; 30.87 mg/L; 500.56 mg/Land 0 mg/L, respectively. © RASĀYAN. All rights reserved.
Department of Chemistry, Faculty of Mathematics and Natural Science, Universitas Negeri Surabaya, 60231, Indonesia
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