NDLI: Adsorption of diethyl and dibutyl phthalates onto activated carbon produced from Albizia julibrissin pods: kinetics and isotherms

Content Provider	Springer Nature Link
Author	Trari, M. Nouri, L. Bouhamidi, Y. Kaouah, F. Boumaza, S.
Copyright Year	2016
Abstract	The adsorption behavior study of diethyl and dibutyl phthalates was investigated onto a new activated carbon prepared from an abundant biomass “Albizia julibrissin pods,” treated chemically by H$_{3}$PO$_{4}$. A series of experiments were conducted in a batch system to estimate the effect of operating conditions such as the adsorbent nature, the dose of adsorbent, the contact time, the initial concentration and the temperature on the adsorption efficiency. The optimum operating conditions were found to be 0.1 and 0.05 g of adsorbent for diethyl and dibutyl phthalates, respectively, at 30 min equilibrium time, 150 mg g$^{−1}$ and 293 K. The adsorption isotherms for both phthalates were fit at different temperatures using the nonlinear regression of Langmuir, Freundlich, Dubinin–Radushkevich and Redlich–Peterson. The pseudo-first order, pseudo-second order by nonlinear regression and intraparticle diffusion models were used to describe the adsorption kinetic. The results show that the intraparticle diffusion model is not the limiting step governing the adsorption mechanism. The structural and textural characteristics of adsorbent surface were investigated. FTIR analysis of unloaded and phthalates-loaded adsorbent revealed that the aliphatic groups attached to phthalate esters are involved in adsorption mechanism.
Starting Page	271
Ending Page	284
Page Count	14
File Format	PDF
ISSN	17351472
Journal	International Journal of Environmental Science & Technology
Volume Number	14
Issue Number	2
e-ISSN	17352630
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2016-10-15
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Equilibrium modeling Ecotoxicology Dibutyl phthalate Albizia julibrissin pods activated carbon Water Management Adsorption mechanism Waste Water Technology Aquatic Pollution Environment Water Pollution Control Environmental Chemistry Diethyl phthalate Environmental Science and Engineering Soil Science & Conservation
Content Type	Text
Resource Type	Article
Subject	Environmental Chemistry Environmental Engineering Agricultural and Biological Sciences

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