Removal of chromium (VI) from aqueous solution using modified CdO nanoparticles

The CdO and modified CdO nanoparticles were synthesized using hydrothermal method. The absorption spectra, crystal phase, surface morphology, particle size, and surface area of CdO and modified CdO nanoparticles were studied by UV–DRS, FT-IR, XRD, SEM, TEM, TGA, PL, and BET surface area analysis. Th...

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Bibliographic Details
Published in:Desalination and water treatment 2016-05, Vol.57 (21), p.9776-9788
Main Authors: Borhade, Ashok V., Uphade, Bhagwat K.
Format: Article
Language:English
Subjects:
Absorption spectra
Adsorbents
Adsorption
CdO nanoparticles
Chromium
Chromium (VI)
Hydrothermal synthesis
Isotherms
Modified CdO nanoparticles
Morphology
Nanoparticles
Surface area
Surface chemistry
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Summary:The CdO and modified CdO nanoparticles were synthesized using hydrothermal method. The absorption spectra, crystal phase, surface morphology, particle size, and surface area of CdO and modified CdO nanoparticles were studied by UV–DRS, FT-IR, XRD, SEM, TEM, TGA, PL, and BET surface area analysis. The present paper reports adsorption technique for the removal of chromium (VI) using CdO and modified CdO nanoparticles. The operating variables such as adsorbent dose, nature of adsorbent, adsorbate concentration, contact time, and pH were optimized. The technique was found to be highly useful and cost effective for removal of chromium (VI). The Langmuir and Freundlich models were evaluated using the experimental data and result showed that the Freundlich isotherm fit better than the Langmuir isotherm.
ISSN:1944-3986
1944-3994
1944-3986
DOI:10.1080/19443994.2015.1041051