کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7021748 | 1456023 | 2015 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Preparation and properties of novel pH-stable TFC membrane based on organic-inorganic hybrid composite materials for nanofiltration
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تصفیه و جداسازی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Preparation and properties of novel pH-stable TFC membrane based on organic-inorganic hybrid composite materials for nanofiltration Preparation and properties of novel pH-stable TFC membrane based on organic-inorganic hybrid composite materials for nanofiltration](/preview/png/7021748.png)
چکیده انگلیسی
A series of thin-film composite nanofiltration membranes have been fabricated by coating the poly(vinyl alcohol) and 3-mercaptopropyltriethoxysilane aqueous solution prepared by a sol-gel process on porous polysulfone support, followed by thermal cross-linking treatment. In order to improve the hydrophilicity of the nanofiltration membranes, the -SH in the membranes are oxidized into -SO3H by immersing the membranes in H2O2 aqueous solution. Notably, no organic solvent is used during the membrane preparation, showing enough green chemistry technology for environmental protection. The properties of the composite nanofiltration membranes are characterized by ATR-FTIR, SEM, AFM and static contact angle. The optimal composite nanofiltration membrane (PVA-SMPTES-0.6) developed exhibits a rejection of 98.0% and a water flux of 43.3 L mâ2 hâ1 for a feed containing 2000 mg Lâ1 Na2SO4 at 2.0 MPa. Furthermore, no irreversible changes in membrane performance have been observed after prolonged exposure (up to 30 days) of PVA-SMPTES-0.6 membrane to extreme acid or alkali aqueous solution.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Membrane Science - Volume 476, 15 February 2015, Pages 500-507
Journal: Journal of Membrane Science - Volume 476, 15 February 2015, Pages 500-507
نویسندگان
Yang Zhang, Min Guo, Guoyuan Pan, Hao Yan, Jian Xu, Yuanteng Shi, Hongwei Shi, Yiqun Liu,