Performance assessment of MCM-48 ceramic composite membrane by separation of AlCl3from aqueous solution.
Three dimensional ordered mesoporous MCM-48 membrane was fabricated on a circular shaped ceramic support by in-situ hydrothermal method. The synthesized MCM-48 powder and MCM-48 ceramic composite membrane were characterized by X-ray diffraction (XRD), thermogravimetric analysis (TGA) and field emission scanning electron microscopy (FESEM). The porosity and pore size of the composite membrane are reduced considerably by the deposition of MCM-48 on the support. The formation of MCM-48 is verified by the XRD analysis. Three stepwise mechanisms for surfactant removal are observed by TGA analysis. FESEM images clearly signify the deposition of MCM-48 on the ceramic support. The pure water flux of the support and MCM-48 composite membrane is found to be 3.63×10-6and 4.18×10-8m3/m2skPa, respectively. The above prepared MCM-48 ceramic composite membrane is employed for the removal of AlCl3from aqueous solution and the highest rejection of 81% is obtained at an applied pressure of 276kPa with salt concentration of 250ppm.
Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India.
Ashim
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Kumar Basumatary
Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India.
Aloke
A
Kumar Ghoshal
Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India. Electronic address: pugal@iitg.ernet.in.
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G
Pugazhenthi
D000077410:Aluminum Chloride; D017607:Aluminum Compounds / Q000032:analysis*; D000538:Aluminum Silicates; D002516:Ceramics / Q000737:chemistry*; D002712:Chlorides / Q000032:analysis*; D004785:Environmental Pollutants / Q000032:analysis*; D005374:Filtration / Q000379:methods*; D008855:Microscopy, Electron, Scanning; D016062:Porosity; D011208:Powders; D011312:Pressure; D012822:Silicon Dioxide; D012996:Solutions; D014867:Water; D014961:X-Ray Diffraction
D017607:Aluminum Compounds; D000538:Aluminum Silicates; D002712:Chlorides; D004785:Environmental Pollutants; D011208:Powders; D012996:Solutions; D014867:Water; D000077410:Aluminum Chloride; D012822:Silicon Dioxide
AlCl(3); Composite membrane; MCM-48; Pore size; Porosity