In:
Hue University Journal of Science: Natural Science, Hue University, Vol. 128, No. 1B ( 2019-06-06), p. 5-12
Abstract:
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.
Type of Medium:
Online Resource
ISSN:
2615-9678
,
1859-1388
DOI:
10.26459/hueuni-jns.v128i1B
DOI:
10.26459/hueuni-jns.v128i1B.5216
Language:
Unknown
Publisher:
Hue University
Publication Date:
2019