Adsorption of Bisphenol-A by Eucalyptus bark/magnetite composite: Modeling the effect of some independent parameters by multiple linear regression

作者：Balci Behzat^*; Erkurt Fatma Elcin

来源：Adsorption Science and Technology, 2017, 35(3-4): 339-356.

DOI：10.1177/0263617416676819

• Eucalyptus camaldulensis
• magnetite
• Bisphenol-A
• adsorption
• multiple linear regression

In the present study, Eucalyptus camaldulensis bark/magnetite composite was used for potential application as a low-cost adsorbent for the removal Bisphenol-A. The effects of various independent parameters, contact time, initial Bisphenol-A concentration, temperature, pH, and Eucalyptus camaldulensis bark/magnetite composite dosage on adsorption were investigated. It was found that the adsorption capacity of Eucalyptus camaldulensis bark/magnetite composite increases with the increasing of Bisphenol-A concentration, temperature, and decreasing dosage of Eucalyptus camaldulensis bark/magnetite composite. The adsorption capacity was found to be 290.6mg/g with 0.1 g Eucalyptus camaldulensis bark/magnetite composite at pH 7 and 50 degrees C The Freundlich isotherm model described the adsorption process better (R-2=0.998) than the Langmuir, Dubinin-Radushkevich, Jovanovic, and Vieth-Sladek isotherm models. According to multiple linear regression analysis, Eucalyptus camaldulensis bark/magnetite composite dosage is the most effective parameter on adsorption capacity at equilibrium and independent variables accounted for 79.4% of the total variability of equilibrium adsorption capacity of Eucalyptus camaldulensis bark/magnetite composite.

• 出版日期2017-5