کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8015707 | 1517176 | 2018 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Fabrication of porous and magnetic Fe/FeNX fibers by electro-blown spinning method for efficient adsorption of Cr (VI) ions
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
A novel porous and magnetic Fe/FeNX composite fibers for Cr (VI) ions adsorbent were prepared by electro-blown spinning technology coupled with high temperature nitrided way. The X-ray Diffraction (XRD) and Differential Scanning Calorimetry-Thermo Gravimetric Analyzer (DSC-TGA) revealed metallic iron and FeNX mainly existed in these fibers. Furthermore, the effect of spinning voltage, air pressure and solution concentration on the morphology for the as-spun fibers were investigated. Meanwhile, the effect of calcination temperature on morphology and structure, crystalline property and hysteresis loop also were discussed. The obtained fibers had a uniform morphology and structure, and a high specific surface area (151â¯m2â¯gâ1) during the calcination temperature of 800â¯Â°C. The Fe/FeNX fibers showed effective sorption affinity for Cr (VI) ions, achieving maximum adsorption capacities of 79.21â¯mg/g at 25â¯Â°C. It mainly was ascribed to the existence of metallic iron in the obtained fibers. Meanwhile, the FeNX contents in the fibers were extremely beneficial to the adsorbent recovery.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Letters - Volume 212, 1 February 2018, Pages 235-238
Journal: Materials Letters - Volume 212, 1 February 2018, Pages 235-238
نویسندگان
Yaofang Zhang, Lu Gao, Nanping Deng, Ming Ya, Hongsheng He, Weimin Kang, Bowen Cheng,