کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4989794 | 1456932 | 2017 | 43 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A novel ultrafiltration grade nickel iron oxide doped hollow fiber mixed matrix membrane: Spinning, characterization and application in heavy metal removal
ترجمه فارسی عنوان
یک رشته اولترافیلتراسیون نیکل اکسید آهن غنی از فیبر توخالی مخلوط شده: ریسندگی، مشخص کردن و کاربرد در حذف فلزات سنگین
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کلمات کلیدی
غشای ماتریکس مخلوط، فوق العاده تصفیه الیاف توخالی، حذف فلزات سنگین، جذب،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تصفیه و جداسازی
چکیده انگلیسی
Nickel iron oxide nanoparticle incorporated hollow fiber mixed matrix membrane was prepared to achieve high throughput as well as high selectivity for heavy metals. The fibers were characterized in terms of their morphology, permeability, molecular weight cut off, zeta potential, surface roughness and adsorption capacity of various toxic heavy metal species. Scanning electron micrograph images showed that the tear drop-like pores in cross section of the fibers were changed into finger-like macropores on addition of nanoparticles. Porosity and pore size in the fibers increased with nanoparticle concentration. Membrane permeability increased almost twice by addition of 3 wt% nanoparticles compared to pure polysulfone membrane. Similar concentration of nanoparticles made the membrane more hydrophilic reducing its contact angle from 77° to 64° and at the same time, molecular weight cut off of the hollow fibers increased from 17 kDa to 34 kDa. Surface zeta potential of the fibers decreased with pH and the membrane with 3 wt% nanoparticles showed a surface potential about â16 mV at pH 9. The maximum adsorption capacity of membrane with 3 wt% nanoparticles was the highest for lead (52 mg/g) followed by copper (42 mg/g), zinc (35 mg/g) and cadmium (24 mg/g). Nickel (17.5 mg/g) and chromium (18 mg/g) had comparable adsorption capacity. Thus, the mixed matrix membrane developed in this study has significant potential in removal of heavy metals from aqueous solution.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Separation and Purification Technology - Volume 188, 29 November 2017, Pages 155-166
Journal: Separation and Purification Technology - Volume 188, 29 November 2017, Pages 155-166
نویسندگان
Mrinmoy Mondal, Madhurima Dutta, Sirshendu De,