Adsorption of Cationic Dye from aqueous solution by Activated Carbon Developed from Xanthoceras Sorbifolia Bunge hull
Adosorption of basic fuchsin (BF) onto Xanthoceras Sorbifolia Bunge hull activated carbon (XSBHAC) developed by phosphoric acid activation 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.
Yinan Hao Ximing Wang Jianfang Yu Dayan Ma Xueqi Li
Inner mongolia Agricultural University,College of Material Science and Art Design,Hohhot 010018,PR China
国际会议
桂林
英文
1-8
2010-11-16（万方平台首次上网日期，不代表论文的发表时间）