Amino and thiol modified magnetic multi-walled carbon nanotubes for the simultaneous removal of lead, zinc, and phenol from aqueous solutions

Amino and thiol modified magnetic multi-walled carbon nanotubes for the simultaneous removal of... Article history: The novel functionalization of multi-walled carbon nanotubes (MWCNTs) was synthesized by reac- Received 30 November 2015 ting trimethoxysilylpropanethiol (MPTs), hydrazine, ammonium ferrous sulfate, and ammonium ferric Received in revised form 5 February 2016 sulfate in sequence as efficient ways to introduce Fe O , amino and thiol groups onto the nanotubes 3 4 Accepted 5 February 2016 sidewalls. The magnetic MWCNTs composite material (N H –SH–Fe O /o-MWCNTs) was characterized 2 4 3 4 Available online 9 February 2016 by transmission electron microscopy, field emission scanning electron microscopy, X-ray diffraction, thermo-gravimetric analysis, x-ray photoelectron spectroscopy, Fourier transformation infrared spec- Keywords: troscopy and magnetization curve. The results revealed that MPTs and hydrazine were coated on the Multi-walled nanotube surface of N H –SH–Fe O /o-MWCNTs. A series of batch adsorption experiments were conducted to 2 4 3 4 Adsorption study the experimental conditions, such as pH, contact time, initial concentrations and temperatures, Thermodynamics which affected the adsorption process. The adsorption experiment results showed that the maxi- Dynamics mum equilibrium adsorption capacity of N H –SH–Fe O /o-MWCNTs for lead, zinc and phenol was 2 4 3 4 195.81 mg/g, 169.89 mg/g and 38.97 mg/g at pH 6, respectively. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Applied Surface Science Elsevier

Amino and thiol modified magnetic multi-walled carbon nanotubes for the simultaneous removal of lead, zinc, and phenol from aqueous solutions

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Publisher
Elsevier
Copyright
Copyright © 2016 Elsevier B.V.
ISSN
0169-4332
eISSN
1873-5584
D.O.I.
10.1016/j.apsusc.2016.02.067
Publisher site
See Article on Publisher Site

Abstract

Article history: The novel functionalization of multi-walled carbon nanotubes (MWCNTs) was synthesized by reac- Received 30 November 2015 ting trimethoxysilylpropanethiol (MPTs), hydrazine, ammonium ferrous sulfate, and ammonium ferric Received in revised form 5 February 2016 sulfate in sequence as efficient ways to introduce Fe O , amino and thiol groups onto the nanotubes 3 4 Accepted 5 February 2016 sidewalls. The magnetic MWCNTs composite material (N H –SH–Fe O /o-MWCNTs) was characterized 2 4 3 4 Available online 9 February 2016 by transmission electron microscopy, field emission scanning electron microscopy, X-ray diffraction, thermo-gravimetric analysis, x-ray photoelectron spectroscopy, Fourier transformation infrared spec- Keywords: troscopy and magnetization curve. The results revealed that MPTs and hydrazine were coated on the Multi-walled nanotube surface of N H –SH–Fe O /o-MWCNTs. A series of batch adsorption experiments were conducted to 2 4 3 4 Adsorption study the experimental conditions, such as pH, contact time, initial concentrations and temperatures, Thermodynamics which affected the adsorption process. The adsorption experiment results showed that the maxi- Dynamics mum equilibrium adsorption capacity of N H –SH–Fe O /o-MWCNTs for lead, zinc and phenol was 2 4 3 4 195.81 mg/g, 169.89 mg/g and 38.97 mg/g at pH 6, respectively.

Journal

Applied Surface ScienceElsevier

Published: Apr 30, 2016

References

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