Chia Nan University of Pharmacy & Science Institutional Repository:Item 310902800/32676
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    標題: Choice of Apposite Dispersing Medium for Silica Nanoparticles Leading to Their Effective Embedment in Nanocomposite Nanofiltration Membranes
    作者: De Guzman, Manuel Reyes
    Ang, Micah Belle Marie Yap
    Lai, Cheng-Lee
    Trilles, Calvin A.
    Pereira, John Marseline
    Aquino, Ruth R.
    Huang, Shu-Hsien
    Cheng-Lee Lai(賴振立)
    貢獻者: Sichuan Univ Sci & Engn, Coll Mat Sci & Engn, Mat Corros & Protect Key Lab Sichuan Prov
    Chung Yuan Christian Univ, R&D Ctr Membrane Technol
    Chung Yuan Christian Univ, Dept Chem Engn
    Chia Nan Univ Pharm & Sci, Dept Environm Engn & Sci
    Mapua Univ, Sch Chem Biol & Mat Engn & Sci
    Natl Ilan Univ, Dept Chem & Mat Engn
    關鍵字: INTERFACIAL POLYMERIZATION
    DIFFERENT SURFACTANTS
    IMPROVED PERFORMANCE
    HIGH-FLUX
    FABRICATION
    SEPARATION
    MORPHOLOGY
    CHLORIDE
    日期: 2019-09
    上傳時間: 2020-07-29 13:54:51 (UTC+8)
    出版者: AMER CHEMICAL SOC
    摘要: Thin-film nanocomposite (TFN) membranes enjoy advantages over the traditional membranes for water purification purposes. TFN membranes are fabricated primarily through interfacial polymerization: diamines are reacted with acyl chlorides. Nanoparticles are added either to aqueous or organic solutions. A polyamide layer forms at the interface of two immiscible phases. In this present study, silica nanoparticles were dispersed in water or n-hexane medium. Scanning electron microscopy-energy dispersive X-ray spectroscopy revealed that dispersing the nanoparticles in n-hexane led to the embedment of more silica in the polyamide layer. A cross-flow nanofiltration setup was used to evaluate the membrane performance, with pure water and different feed salt solutions as feed. The results demonstrated that dispersing the nanoparticles in water led to the formation of a defective polyamide layer. However, dispersion in n-hexane resulted in a TFN membrane with a high separation performance. Moreover, the membrane exhibited stability for 62 h.
    關聯: Industrial & Engineering Chemistry Research, v.58, n.38, pp.17937-17944
    显示于类别:[環境工程與科學系(所)] 期刊論文

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