کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
625205 1455419 2011 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synthesis and characterization of a carbon nanotube/polymer nanocomposite membrane for water treatment
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تصفیه و جداسازی
پیش نمایش صفحه اول مقاله
Synthesis and characterization of a carbon nanotube/polymer nanocomposite membrane for water treatment
چکیده انگلیسی

Multi-wall carbon nanotube (MWCNT)/aromatic polyamide (PA) nanocomposite membranes were synthesized by a polymer grafting process. Surface morphology, roughness, and mechanical strength of the resultant nanocomposite membranes were characterized by scanning electron microscopy (SEM), atomic force microscopy (AFM), and micro-strain analysis, respectively. SEM and AFM images showed that MWCNTs were well dispersed in the PA matrix. Measurements of mechanical properties of this composite showed increasing membrane strength with increasing MWCNT content with monotonic increases in Young's modulus, toughness, and tensile strength. The addition of MWCNTs also improved the rejection of both salt and organic matter relative to the 10% PA membrane base case. The nanocomposite membrane synthesized with 15 mg/g MWCNT in a 10% PA casting solution rejected NaCl and humic acid by factors of 3.17 and 1.67 respectively relative to the PA membrane without MWCNTs, while membrane permeability decreased by 6.5%.

Research highlights
► Multi-wall carbon nanotube (MWCNTs)/aromatic polyamide (PA) nanocomposite membranes by polymer grafting.
► SEM, AFM, FTIR and mechanical for membrane characterization.
► RO performance by permeability of ultrapure water and rejection of salts.
► Humic acid for water treatment.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Desalination - Volume 272, Issues 1–3, 3 May 2011, Pages 46–50
نویسندگان
, , , ,