Investigation of methylene blue adsorption in wastewater using nano-zeolite modified with copper

In this study, the adsorption of methylene blue (MB) dye using the nano-zeolite modified with copper (Cu–zeolite) was investigated. The modified zeolite was characterized by scanning electron microscopy, Fourier transform infrared spectroscopy, X-ray powder diffraction and transmission electron micr...

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Bibliographic Details
Published in:Desalination and water treatment 2017-08, Vol.85, p.206-214
Main Authors: Salimi, Farhad, Eskandari, Mehran, Karami, Changiz
Format: Article
Language:English
Subjects:
Adsorption
Colored water
Methylene blue
Modified nano-zeolite with copper
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Summary:In this study, the adsorption of methylene blue (MB) dye using the nano-zeolite modified with copper (Cu–zeolite) was investigated. The modified zeolite was characterized by scanning electron microscopy, Fourier transform infrared spectroscopy, X-ray powder diffraction and transmission electron microscopy. Moreover, the effect of experimental parameters such as pH, contact time and initial concentration on adsorption of dye was studied. Results indicated that the optimum conditions for maximum adsorption of 20 mg/L MB were 30 min contact time, pH = 7 and 8 g/L adsorbent; the remaining MB in the solution was 1.75%. The equilibrium data were found to be well represented by Langmuir isotherm equation and the adsorption process was described by pseudo-second-order kinetic model for MB.
ISSN:1944-3986
DOI:10.5004/dwt.2017.21248