NDLI: Adsorption of Alizarin Red S onto Biosorbent of Lantana camara: Kinetic, Equilibrium Modeling and Thermodynamic Studies

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Proceedings of the National Academy of Sciences, India Section A: Physical Sciences : Volume 84, Issue 3, September 2014

Proceedings of the National Academy of Sciences, India Section A: Physical Sciences : Volume 84, Issue 2, June 2014

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Adsorption of Alizarin Red S onto Biosorbent of Lantana camara: Kinetic, Equilibrium Modeling and Thermodynamic Studies

Content Provider	Springer Nature Link
Author	Gautam, Pavan K. Gautam, Ravindra K. Pandey, J. D. Chattopadhyaya, M. C.
Copyright Year	2014
Abstract	Adsorption of an anthraquinone dye Alizarin Red S onto biosorbent of Lantana camara has been studied on aqueous solutions. The batch adsorption experiments were conducted using simulated aqueous solutions and the effects of initial dye concentration, pH of solution, contact time and temperature were investigated. The prepared biosorbent was characterized using FTIR, SEM, elemental analysis and through the determination of pH$_{zpc}$. The equilibrium data were modeled with Langmuir and Freundlich isotherms. Freundlich model fitted very well with the equilibrium adsorption data and this provided evidence of multilayer adsorption of the dye molecules onto the active sites on the biosorbent. The kinetic studies revealed that the process was quite rapid and more than 90 % of equilibrium capacity was achieved within 80 min. The rates of adsorption were found to confirm to the pseudo-second-order kinetics with good correlations (R $^{ 2 }$ > 0.99). The thermodynamic studies showed that the Alizarin Red S-biosorbent system is spontaneous, exothermic and favourable in nature.
Starting Page	495
Ending Page	504
Page Count	10
File Format	PDF
ISSN	03698203
Journal	Proceedings of the National Academy of Sciences, India Section A: Physical Sciences
Volume Number	84
Issue Number	4
e-ISSN	22501762
Language	English
Publisher	Springer India
Publisher Date	2014-10-05
Publisher Place	India
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Applied and Technical Physics Alizarin Red S Freundlich Adsorption Atomic, Molecular, Optical and Plasma Physics Lantana camara Quantum Physics Kinetics Physics
Content Type	Text
Resource Type	Article
Subject	Physics and Astronomy Biochemistry, Genetics and Molecular Biology

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Adsorption of Alizarin Red S onto Biosorbent of Lantana camara: Kinetic, Equilibrium Modeling and Thermodynamic Studies

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Adsorption of Alizarin Red S onto Biosorbent of Lantana camara: Kinetic, Equilibrium Modeling and Thermodynamic Studies