NDLI: Artocarpus altilis (breadfruit) skin as a potential low-cost biosorbent for the removal of crystal violet dye: equilibrium, thermodynamics and kinetics studies

Content Provider	Springer Nature Link
Author	Lim, Linda B. L. Priyantha, Namal Mansor, Nur Hakimah Mohd
Copyright Year	2014
Abstract	Artocarpus altilis (Breadfruit) skin shows great potential as an effective low-cost biosorbent for the removal of toxic crystal violet (CV) dye. Curve fitting of adsorption equilibrium data obtained under optimized conditions, followed by error analysis, for different isotherms, namely Langmuir, Freundlich, Temkin, Dubinin–Radushkevich, Redlich–Peterson, and Sips, demonstrates that the Langmuir and the Sips adsorption isotherm models show the best agreement with maximum biosorption capacities (q $_{max}$) of 145.8 and 150.1 mg g$^{−1}$, respectively, which are superior to most reported biosorbents. Breadfruit skin, whose point of zero charge is at pH 4.7, characterized by X-ray fluorescence (XRF) spectroscopy, scanning electron microscopy (SEM) and Fourier transform infra red (FTIR) spectroscopy before and after treatment of CV provides further support for adsorption. Thermodynamic studies indicate that the adsorption of CV by BS was both spontaneous and endothermic, while kinetics studies show that the sorption of CV on BS follows the pseudo-second-order kinetics with a contribution from intraparticle diffusion.
Starting Page	3239
Ending Page	3247
Page Count	9
File Format	PDF
ISSN	18666280
Journal	Environmental Earth Sciences
Volume Number	73
Issue Number	7
e-ISSN	18666299
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2014-08-24
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Artocarpus altilis Adsorption isotherm Crystal violet dye Thermodynamics Kinetics Geology Hydrology/Water Resources Geochemistry Environmental Science and Engineering Terrestrial Pollution Biogeosciences
Content Type	Text
Resource Type	Article
Subject	Global and Planetary Change Earth-Surface Processes Soil Science Environmental Chemistry Pollution Geology Water Science and Technology

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