Oxidation of carbon nanotubes using for Cu(II) adsorption from aqueous solution

Oxidation of carbon nanotubes using for Cu(II) adsorption from aqueous solution

Carbon nanotubes (CNTs) synthesized by chemical vapour deposition without using hydrogen were oxidized with 0.1 M potassium permanganate at 40oC for 2 hours and exhibited high CuII adsorption capacity from aqueous solution. X-ray diffraction (XRD), energy-dispersive X-ray spectroscopy (EDS), scannin...

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Bibliographic Details
Main Authors: Nguyen Duc Vu Quyen, Tran Ngoc Tuyen, Dinh Quang Khieu, Dang Xuan Tin, Bui Thi Hoang Diem, Nguyen Thi My Tinh, Pham Thi Ngoc Lan
Format: Article
Language:English
Published: HUJOS 2019-06-01
Series:Tạp chí Khoa học Đại học Huế: Khoa học Tự nhiên
Subjects:
oxidized carbon nanotubes
cuii adsorption capacity
cuii adsorption
potassium permanganate
oxidized cnts.
Online Access:http://jos.hueuni.edu.vn/index.php/HUJOS-NS/article/view/5216
Description
Summary:Carbon nanotubes (CNTs) synthesized by chemical vapour deposition without using hydrogen were oxidized with 0.1 M potassium permanganate at 40oC for 2 hours and exhibited high CuII adsorption capacity from aqueous solution. X-ray diffraction (XRD), energy-dispersive X-ray spectroscopy (EDS), scanning electron microscope (SEM), transmission electron microscope (TEM) and nitrogen adsorption/desorption isotherms were used to characterize the oxidized CNTs. After oxidizing, the obtained CNTs were used to remove CuII from aqueous solution. With CuII initial concentration of 20 mg.L-1, at pH of 4 and adsorbent dosage of 0.2 g.L-1, the oxidized CNTs exhibited high CuII adsorption ability with maximum adsorption capacity of 174.4 mg.g-1.
ISSN:1859-1388
2615-9678

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