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Fabrication of hydrophobic fluorinated silica-polyamide thin film nanocomposite reverse osmosis membranes with dramatically improved salt rejection.
J Colloid Interface Sci 2018; 510:127-132JC

Abstract

Thin film nanocomposite reverse osmosis (TFN RO) membranes incorporated with hydrophilic nanoparticles show a potential problem that the salt rejection can not be improved significantly. In this study, novel TFN RO membranes incorporated with hydrophobic fluorinated silica nanoparticles were fabricated to improve the salt rejection. Fluorinated silica nanoparticles were well dispersed in organic phase during the interfacial polymerization (IP) process. The TFN RO membranes were characterized with attenuated total reflectance infra-red, field emission scanning electron microscopy, atomic force microscopy and water contact angle measurements. The preparation conditions of TFN RO membranes, including IP reaction time, organic solvent removal time, and fluorinated silica loading, were optimized by characterizing desalination performance using 2000ppm NaCl aqueous solution at 1.55MPa and 25°C. The salt rejection increased significantly from 96.0% without fluorinated silica nanoparticles to 98.6% with the optimal 0.12% (w/v) fluorinated silica nanoparticles, while the water flux decreased slightly from 0.99m3/m2/day to 0.93m3/m2/day. This study demonstrated the potential use of hydrophobic nanoparticles in high-performance TFN RO membranes.

Authors+Show Affiliations

Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China.Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China. Electronic address: kszhang@iue.ac.cn.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

28942162

Citation

Pang, Ruizhi, and Kaisong Zhang. "Fabrication of Hydrophobic Fluorinated Silica-polyamide Thin Film Nanocomposite Reverse Osmosis Membranes With Dramatically Improved Salt Rejection." Journal of Colloid and Interface Science, vol. 510, 2018, pp. 127-132.
Pang R, Zhang K. Fabrication of hydrophobic fluorinated silica-polyamide thin film nanocomposite reverse osmosis membranes with dramatically improved salt rejection. J Colloid Interface Sci. 2018;510:127-132.
Pang, R., & Zhang, K. (2018). Fabrication of hydrophobic fluorinated silica-polyamide thin film nanocomposite reverse osmosis membranes with dramatically improved salt rejection. Journal of Colloid and Interface Science, 510, pp. 127-132. doi:10.1016/j.jcis.2017.09.062.
Pang R, Zhang K. Fabrication of Hydrophobic Fluorinated Silica-polyamide Thin Film Nanocomposite Reverse Osmosis Membranes With Dramatically Improved Salt Rejection. J Colloid Interface Sci. 2018 Jan 15;510:127-132. PubMed PMID: 28942162.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Fabrication of hydrophobic fluorinated silica-polyamide thin film nanocomposite reverse osmosis membranes with dramatically improved salt rejection. AU - Pang,Ruizhi, AU - Zhang,Kaisong, Y1 - 2017/09/15/ PY - 2017/06/08/received PY - 2017/09/09/revised PY - 2017/09/14/accepted PY - 2017/9/25/pubmed PY - 2017/9/25/medline PY - 2017/9/25/entrez KW - Fluorinated silica KW - Hydrophobic nanoparticles KW - Reverse osmosis KW - Thin film nanocomposite SP - 127 EP - 132 JF - Journal of colloid and interface science JO - J Colloid Interface Sci VL - 510 N2 - Thin film nanocomposite reverse osmosis (TFN RO) membranes incorporated with hydrophilic nanoparticles show a potential problem that the salt rejection can not be improved significantly. In this study, novel TFN RO membranes incorporated with hydrophobic fluorinated silica nanoparticles were fabricated to improve the salt rejection. Fluorinated silica nanoparticles were well dispersed in organic phase during the interfacial polymerization (IP) process. The TFN RO membranes were characterized with attenuated total reflectance infra-red, field emission scanning electron microscopy, atomic force microscopy and water contact angle measurements. The preparation conditions of TFN RO membranes, including IP reaction time, organic solvent removal time, and fluorinated silica loading, were optimized by characterizing desalination performance using 2000ppm NaCl aqueous solution at 1.55MPa and 25°C. The salt rejection increased significantly from 96.0% without fluorinated silica nanoparticles to 98.6% with the optimal 0.12% (w/v) fluorinated silica nanoparticles, while the water flux decreased slightly from 0.99m3/m2/day to 0.93m3/m2/day. This study demonstrated the potential use of hydrophobic nanoparticles in high-performance TFN RO membranes. SN - 1095-7103 UR - https://www.unboundmedicine.com/medline/citation/28942162/Fabrication_of_hydrophobic_fluorinated_silica_polyamide_thin_film_nanocomposite_reverse_osmosis_membranes_with_dramatically_improved_salt_rejection_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0021-9797(17)31094-9 DB - PRIME DP - Unbound Medicine ER -
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