Title of article
Rice Bran as a Sorbent for Malonic Acid From Aqueous Solution
Author/Authors
Samadani Langeroodi, Narges Chemistry Department - Science Faculty - Golestan University, Gorgan , Jodaian, Vida Chemistry Department - Science Faculty - Islamshahr branch, Islamic azad university , Mehrani. Sepideh Chemistry Department - Science Faculty - Golestan University, Gorgan
Pages
9
From page
75
To page
83
Abstract
The adsorption of malonic acid on the rice bran was studied under various conditions such as temperature, contact time, adsorbent dose and concentration of adsorbate. Batch adsorption experiments were conducted and the result showed that the adsorption was dependent on all these parameters. The adsorption process obeys the Langmuir and Freundlich adsorption isotherms. The adsorption capacity was found to be 1.24 mg/g. The Sorption of malonic acid on the rice bran was rapid during the first 20 minutes and the equilibrium was found to be attained within 50 minutes. Negative values of Gibbُ s free energy change (ΔG°), show that the adsorption was feasible and spontaneous and negative values of enthalpy change (ΔH°), confirm exothermic adsorption. Adsorption of malonic acid on the rice bran was characterized by Fourier transform infrared (FT-IR) spectroscopy.
Keywords
rice bran , Adsorption isotherms , Thermodynamics , Kinetics , FT-IR
Serial Year
2014
Record number
2494106
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