title: Preparation, characterization, biological activity, and transport study of polystyrene based calcium-barium phosphate composite membrane.
abstract: Calcium-barium phosphate (CBP) composite membrane with 25% polystyrene was prepared by co-precipitation method. Scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transformed infrared (FTIR), and Thermogravimetric analysis (TGA) were used to characterize the membrane. The membrane was found to be crystalline in nature with consistent arrangement of particles and no indication of visible cracks. The electrical potentials measured across the composite membrane in contact with univalent electrolytes (KCl, NaCl and LiCl), have been found to increase with decrease in concentrations. Thus the membrane was found to be cation-selective. Transport properties of developed membranes may be utilized for the efficient desalination of saline water and more importantly demineralization process. The antibacterial study of this composite membrane shows good results for killing the disease causing bacteria along with waste water treatment.
authors.affiliation: Membrane Research Laboratory, Department of Chemistry, Aligarh Muslim University, Aligarh, 202002, India.
authors.forename: Mohammad Mujahid Ali
authors.initials: MM
authors.lastname: Khan
authors.lastname: Rafiuddin
mesh_terms: D000900:Anti-Bacterial Agents / Q000494:pharmacology; D001412:Bacillus subtilis / Q000187:drug effects; D017609:Barium Compounds / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology*; D002130:Calcium Phosphates / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology*; D002412:Cations; D008564:Membrane Potentials / Q000187:drug effects; D008567:Membranes, Artificial; D008826:Microbial Sensitivity Tests; D008855:Microscopy, Electron, Scanning; D009038:Motion; D011137:Polystyrenes / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology*; D016062:Porosity; D011550:Pseudomonas aeruginosa / Q000187:drug effects; D017550:Spectroscopy, Fourier Transform Infrared; D055672:Static Electricity; D013818:Thermogravimetry; D014867:Water; D014961:X-Ray Diffraction
chemical_list: D000900:Anti-Bacterial Agents; D017609:Barium Compounds; D002130:Calcium Phosphates; D002412:Cations; D008567:Membranes, Artificial; D011137:Polystyrenes; D014867:Water; C020243:calcium phosphate
keywords: Composite membrane; Fixed charge density; Membrane potential; Mobility ratio; Transport number