Choice of Apposite Dispersing Medium for Silica Nanoparticles Leading to Their Effective Embedment in Nanocomposite Nanofiltration Membranes

doi:10.1021/acs.iecr.9b03456

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题名:	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)
贡献者:	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
关键词:	INTERFACIAL POLYMERIZATION DIFFERENT SURFACTANTS IMPROVED PERFORMANCE HIGH-FLUX FABRICATION SEPARATION MORPHOLOGY CHLORIDE
日期:	2019-09
上传时间:	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:	[Dept. of Environmental Engineering and Science (including master's program)] Periodical Articles

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