Enhanced Adsorption of Selenium Ions from Aqueous Solution Using Iron Oxide Impregnated Carbon Nanotubes

Omer Y. Bakather, Ahmad Kayvani Fard, Ihsanullah, Majeda Khraisheh, Mustafa S. Nasser, Muataz Atieh

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The aim of this research was to investigate the potential of raw and iron oxide impregnated carbon nanotubes (CNTs) as adsorbents for the removal of selenium (Se) ions from wastewater. The original and modified CNTs with different loadings of Fe2O3 nanoparticles were characterized using high resolution transmission electron microscopy (HRTEM), scanning electron microscopy (SEM), X-ray diffractometer (XRD), Brunauer, Emmett, and Teller (BET) surface area analyzer, thermogravimetric analysis (TGA), zeta potential, and energy dispersive X-ray spectroscopy (EDS). The adsorption parameters of the selenium ions from water using raw CNTs and iron oxide impregnated carbon nanotubes (CNT-Fe2O3) were optimized. Total removal of 1 ppm Se ions from water was achieved when 25 mg of CNTs impregnated with 20 wt.% of iron oxide nanoparticles is used. Freundlich and Langmuir isotherm models were used to study the nature of the adsorption process. Pseudo-first and pseudo-second-order models were employed to study the kinetics of selenium ions adsorption onto the surface of iron oxide impregnated CNTs. Maximum adsorption capacity of the Fe2O3 impregnated CNTs, predicted by Langmuir isotherm model, was found to be 111 mg/g. This new finding might revolutionize the adsorption treatment process and application by introducing a new type of nanoadsorbent that has super adsorption capacity towards Se ions.

Original languageEnglish
Article number4323619
JournalBioinorganic Chemistry and Applications
Volume2017
DOIs
Publication statusPublished - 1 Jan 2017

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Carbon Nanotubes
Selenium
Adsorption
Ions
Nanoparticles
Isotherms
X-Ray Emission Spectrometry
ferric oxide
Water
Diffractometers
Zeta potential
Waste Water
High resolution transmission electron microscopy
Transmission Electron Microscopy
Electron Scanning Microscopy
Adsorbents
Thermogravimetric analysis
Energy dispersive spectroscopy
Wastewater
X-Rays

ASJC Scopus subject areas

  • Biochemistry
  • Organic Chemistry
  • Inorganic Chemistry

Cite this

Enhanced Adsorption of Selenium Ions from Aqueous Solution Using Iron Oxide Impregnated Carbon Nanotubes. / Bakather, Omer Y.; Kayvani Fard, Ahmad; Ihsanullah; Khraisheh, Majeda; Nasser, Mustafa S.; Atieh, Muataz.

In: Bioinorganic Chemistry and Applications, Vol. 2017, 4323619, 01.01.2017.

Research output: Contribution to journalArticle

Bakather, Omer Y. ; Kayvani Fard, Ahmad ; Ihsanullah ; Khraisheh, Majeda ; Nasser, Mustafa S. ; Atieh, Muataz. / Enhanced Adsorption of Selenium Ions from Aqueous Solution Using Iron Oxide Impregnated Carbon Nanotubes. In: Bioinorganic Chemistry and Applications. 2017 ; Vol. 2017.
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