Journal
DESALINATION AND WATER TREATMENT
Volume 57, Issue 23, Pages 10646-10654Publisher
DESALINATION PUBL
DOI: 10.1080/19443994.2015.1040849
Keywords
Methyl orange; Adsorption; Zirconium-immobilized bentonite; Isotherm
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Zirconium-immobilized bentonite was prepared by hydrothermal reaction, and characterized by scanning electronic microscope (SEM) and X-ray diffraction (XRD) techniques. Removal of methyl orange (MO) from aqueous solutions with zirconium-immobilized bentonite was investigated by a batch method. These factors including adsorbent dosage, pH value of MO solution, and contact time were evaluated. Adsorption equilibrium was achieved at 60min or so. The experimental isotherm data were described by the Langmuir isotherm model. The maximum adsorption capacity obtained from the Langmuir isotherm model was 44.13mg/g at 298K and natural pH value. An increase in temperature reduced the adsorption of MO while the increasing amount of zirconium enhanced the adsorption of MO onto Zr-immobilized bentonite. 1M HCl was identified as the best eluent.
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