NDLI: Rapid adsorption of cobalt (II) by 3-aminopropyltriethoxysilane modified halloysite nanotubes

Content Provider	Springer Nature Link
Author	Wang, Xin Chen, Yuantao Zhang, Wei He, Wenfang Wang, Jian Chen, Biqing
Copyright Year	2016
Abstract	The adsorption of cobalt (II) by 3-aminopropyltriethoxysilane (APTS) modified halloysite nanotubes (HNTs) was studied. The modified halloysite was characterized by Fourier transform infrared spectroscopy (FT-IR), X-Ray diffraction (XRD) and thermogravimetry (TG). In addition, a batch method was used to study the adsorption behavior and the mechanism of removal Co (II) by modified HNTs; the effective factors influencing the adsorption process including adsorbent concentration, contact time, initial pH, temperature and the initial concentration of Co (II) have been investigated. The results showed that the APTS was successfully grafted on the HNTs surface. The modified HNTs exhibited rapid adsorption speed, which reached the adsorption equilibrium within 30 min. The adsorption capacity of the adsorbent increased significantly with the increase of pH. The adsorption data of Co (II) on the modified HNTs are well consistent with the Langmuir model and the pseudo-second-order kinetic model.
Starting Page	3504
Ending Page	3510
Page Count	7
File Format	PDF
ISSN	02561115
Journal	Korean Journal of Chemical Engineering
Volume Number	33
Issue Number	12
e-ISSN	19757220
Language	English
Publisher	Springer US
Publisher Date	2016-11-07
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Halloysite Nanotube 3-Aminopropyltriethoxysilane Modification Cobalt Adsorption Industrial Chemistry/Chemical Engineering Catalysis Materials Science Biotechnology
Content Type	Text
Resource Type	Article
Subject	Chemistry Chemical Engineering

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