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2018 Volume 9 Issue 3

Adsorption of Orange G Dye from Aqueous Solutions Using Magnesium Oxide Nanoparticles


Amir Fahdil, Dawood AL-Niaimi, Abdulilah.Ahmed Olaiwy
Abstract
Magnesium Oxide (MnO₂) nanoparticles were synthesized by Hydrothermal method. The synthesized samples were characterized using FT-IR, X-ray diffraction, AFM, and SEM. The adsorption of Orange G dye from aqueous solution onto MnO₂ as an adsorbent by batch method, under various experimental conditions including exposure time, MnO₂ dosage, pH, temperature, and initial Orange G dye concentration was investigated. Adsorption isotherms were used to test the adsorption data for Langmuir, Freundlich, Dubinin and Temkin as it was fit to Langmuir isotherm and type S according to Gilles’ classification. Thermodynamic functions’ data such as ΔH°, ΔG°, and ΔS° of the adsorption process were calculated, which showed that the adsorption endothermic process and the value of ΔG° was negative. This indicate that the adsorption happened spontaneously. The value of ΔS° is positive, which means the movement of dye molecules is unrestricted. Kinetic data were fit to pseudo-second order model.

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JOURNAL OF BIOCHEMICAL TECHNOLOGY
JOURNAL OF BIOCHEMICAL TECHNOLOGY
Journal of Biochemical Technology is a double-blind peer reviewed International Journal published by the Sevas Publishing on behalf of the Biochemical Technology Society, a Registered Charity Organization from India

AREA OF INTEREST
AREA OF INTEREST
new advances in enzymatic and protein mechanims; applied molecular genetics and biotechnology; genomics and proteomics; metabolic; medical, environmental, food and agro biotechnology.

FOCUS AND SCOPE
FOCUS AND SCOPE
Journal Of Biochemical Technology Provides A Medium For The Rapid Publication Of Full-Length Articles, Mini-Reviews Of New And Emerging Products And Short Communications On All Aspects Of ...

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This journal provides immediate open access to its content on the principle that making research freely available to the public supports a greater global exchange of knowledge. Keywords include, Biochemical Research: Endo/exocytosis, Trafficking, Membrane Biology, Cell Migration, Cell-Matrix Organelle Biogenesis, Cytoskeleton Proteolysis, Cell Death, Cell Cycle, Cancer, Cell Growth/Death, Differentiation, Drug Targets, Gene Therapy, Models of Disease, Proteomics, Stem Cells, Bioenergetics, Mitochondria, Free Radicals, Redox Signaling, Ion Transport/Channels, Oxidative