کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4987577 | 1455274 | 2017 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Thin film nanocomposite membranes based on imologite nanotubes blended substrates for forward osmosis desalination
ترجمه فارسی عنوان
غشاهای نانو کامپوزیتی نازک بر اساس نانولوله های ایمنولوژیک مخلوط بسترهای ذوب شدن اسمز معکوس
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کلمات کلیدی
نانولوله های ایموگولیت، غشای اسمز معکوس، پارامتر ساختاری قطبش غلظت داخلی، نمک زدایی،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تصفیه و جداسازی
چکیده انگلیسی
Novel thin film nanocomposite (TFN) membranes were fabricated by interfacial polymerization on imogolite nanotubes (INTs) blended substrates for the forward osmosis (FO) desalination. INTs as intrinsically hydrophilic nanotubes were synthesized and characterized to be with length of 100-200Â nm, outer diameter of 2Â nm, and inner diameter of 1Â nm. Then, different INTs loading (0.33, 0.66 and 1.0Â wt%) were used to prepare INTs blended polysulfone (PSf) substrates, whose morphology and properties were investigated in detail. It is found that the incorporation of INTs obviously enhanced the hydrophilicity, pure water flux, overall porosity, surface porosity and roughness of PSf substrates. The TFN membranes demonstrated superior water permeance and salt rejection compared to the thin film composite (TFC) membranes. Among others, TFN 0.66 with 0.66Â wt% INTs blended PSf substrate showed the best over-all properties which are important for demonstrating good osmotic performance in FO. Moreover, TFN membranes presented smaller structural parameters than TFC membrane, which means that internal concentration polarization (ICP) effect can be alleviated by incorporating hydrophilic INTs into substrates. The obtained TFN membranes with INTs blended substrates could develop opportunities in desalination.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Desalination - Volume 421, 1 November 2017, Pages 160-168
Journal: Desalination - Volume 421, 1 November 2017, Pages 160-168
نویسندگان
Ye-Han Pan, Qing-Yang Zhao, Lin Gu, Qing-Yun Wu,