Ultrasonic Treatment of Activated Carbon Used in Adsorption of Basic Fuchsin

Abstract:

Xanthoceras Sorbifolia Bunge hull activated carbon (XSBHAC) developed by phosphoric acid activation for removing basic fuchsin (BF) has been investigated. Experiments were carried out as function of contact time, pH (4-10) and temperature (303,313 and 323K). Adsorption isotherms were modeled with the Langmuir and Freundlich isotherms. The data fitted well with the Langmuir isotherm. The Langmuir monolayer saturation capacities of BF adsorbed onto activated carbon were 351.35, 354.96 and 355.94 mg/g at 303,313, and 323 K, respectively.The kinetic models were also studied .The rates of adsorption were found to conform to the pseudo-second-order kinetics with good correlation.Using the equilibrium concentration contents obtained at different temperatures, various thermodynamic parameters,such as △G,△H and △S, have been calculated. The thermodynamics parameters of system indicated spontaneous and endothermic process. Key words: Xanthoceras sorbifolia bunge hull;biosorption; basic fuchsin

• Periodical: Materials Science Forum (Volumes 704-705)
• Pages: 486-491
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.704-705.486
• Online since: December 2011
• Authors: Yi Nan Hao, Xi Ming Wang, Li Jun Ding, Da Yan Ma
• Keywords: Basic Fuchsin, Biosorption, Xanthoceras sorbifolia Bunge Hull

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