کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7043553 | 1456913 | 2018 | 32 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Flexible design of carbon nanotubes grown on carbon nanofibers by PECVD for enhanced Cr(VI) adsorption capacity
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تصفیه و جداسازی
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
A novel strategy of growing carbon nanotubes (CNTs) vertically and uniformly on the surface of carbon nanofibers (CNFs) via plasma enhanced chemical vapor deposition (PECVD) was proposed to prepare a kind of CNFs-CNTs adsorption materials. The CNFs-CNTs (398.127â¯m2â¯gâ1) obtained a 33 times increased specific surface area as compared to CNFs (12.986â¯m2â¯gâ1). CNFs-CNTs showed remarkable adsorption capacity toward Cr(VI) in water (150â¯mgâ¯gâ1 after an hour adsorption and 227â¯mgâ¯gâ1 at equilibrium) due to the fascinating surface area. The effects of operating conditions including pH value, absorbing time, amounts of the adsorbents and initial concentration on Cr(VI) removal properties are evaluated. Besides, the nanocomposites exhibited excellent recyclability for adsorbing Cr(VI) that as slightly as â¼5% adsorption capacity was reduced after 3 adsorption cycles.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Separation and Purification Technology - Volume 207, 22 December 2018, Pages 406-415
Journal: Separation and Purification Technology - Volume 207, 22 December 2018, Pages 406-415
نویسندگان
Lei Chen, Nana Chen, Haiming Wu, Wenxiao Li, Zhou Fang, Zhiwei Xu, Xiaoming Qian,