کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7020030 | 1455947 | 2018 | 28 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Novel pore size tuning method for the fabrication of ceramic multi-channel nanofiltration membrane
ترجمه فارسی عنوان
روش تنظیم اندازه منافذ رمان برای ساخت غشای نانوفیلتراسیون چند کاناله سرامیک
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کلمات کلیدی
غشای سرامیک، نانوفیلتراسیون، چند کاناله رسوب شیمیایی در محل،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تصفیه و جداسازی
چکیده انگلیسی
A novel pore size tuning method was proposed for the fabrication of TiO2 multi-channel nanofiltration membrane from TiO2 ultrafiltration substrate using in situ chemical deposition. Titanium isopropoxide and isopropanol were employed as the precursor and solvent, respectively. The effects of solvent, precursor, pore size of ultrafiltration substrate, as well as thermal treatment temperature, on the performance of TiO2 multi-channel nanofiltration membrane were studied. The optimized TiO2 multi-channel nanofiltration membrane, prepared from ceramic ultrafiltration substrate with an MWCO of approximately 5â¯kDa, showed a high pure water permeability of approximately 20â¯Lâ¯mâ2 hâ1 barâ1 and a low MWCO of approximately 800â¯Da. The average membrane pore radius was tuned from 2.4â¯nm to 0.9â¯nm. The TiO2 multi-channel nanofiltration membrane was successfully applied to the decolorization of sodium dehydroacetate. The decolorization rate was ~ 89.5%, and the sodium dehydroacetate recovery rate reached 98%, which is 2-3% higher than that obtained using the traditional activated carbon decolorization process. The in situ chemical deposition method has great potential as a novel and facile pore size tuning technique for ceramic ultrafiltration membrane for the fabrication of the ceramic multi-channel nanofiltration membranes, especially for large-scale production.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Membrane Science - Volume 552, 15 April 2018, Pages 77-85
Journal: Journal of Membrane Science - Volume 552, 15 April 2018, Pages 77-85
نویسندگان
Xianfu Chen, Yun Zhang, Jianxiong Tang, Minghui Qiu, Kaiyun Fu, Yiqun Fan,