• Title/Summary/Keyword: membrane characterization

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Preparation and characterization of TiO2 membrane on porous 316 L stainless steel substrate with high mechanical strength

  • Mohamadi, Fatemeh;Parvin, Nader
    • Membrane and Water Treatment
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    • v.6 no.3
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    • pp.251-262
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    • 2015

  • In this work the preparation and characterization of a membrane containing a uniform mesoporous Titanium oxide top layer on a porous stainless steel substrate has been studied. The 316 L stainless steel substrate was prepared by powder metallurgy technique and modified by soaking-rolling and fast drying method. The mesoporous titania membrane was fabricated via the sol-gel method. Morphological studies were performed on both supported and unsupported membranes using scanning electron microscope (SEM) and field emission scanning microscope (FESEM). The membranes were also characterized using X-ray diffraction (XRD) and $N_2$-adsorption / desorption measurement (BET analyses). It was revealed that a defect-free anatase membrane with a thickness of $1.6{\mu}m$ and 4.3 nm average pore size can be produced. In order to evaluate the performance of the supported membrane, single-gas permeation experiments were carried out at room temperature with nitrogen gas. The permeability coefficient of the fabricated membrane was $4{\times}10^{-8}\;lit\;s^{-1}\;Pa^{-1}\;cm^{-1}$.

  • https://doi.org/10.12989/mwt.2015.6.3.251 인용 KSCI