Doğan Mehmet, Alkan Mahir
Department of Chemistry, Faculty of Science and Literature, Balikesir University, 10100 Balikesir, Turkey.
Chemosphere. 2003 Jan;50(4):517-28. doi: 10.1016/s0045-6535(02)00629-x.
This study examines adsorption kinetics and activation parameters of methyl violet on perlite. The effect of process parameters like contact time, concentration of dye, temperature and pH on the extent of methyl violet adsorption from solution has been investigated. Results of the kinetic studies show that the adsorption reaction is first order with respect to dye solution concentration with activation energy of 13.2 kJ mol(-1). This low activation energy value indicates that the adsorption reaction is diffusion controlled. The activation parameters using Arrhenius and Eyring equations have been calculated. Adsorption increases with increase of variables such as contact time, initial dye concentration, temperature and pH.
本研究考察了甲基紫在珍珠岩上的吸附动力学及活化参数。研究了接触时间、染料浓度、温度和pH值等工艺参数对溶液中甲基紫吸附程度的影响。动力学研究结果表明，吸附反应对染料溶液浓度为一级反应，活化能为13.2 kJ mol(-1)。这一低活化能值表明吸附反应受扩散控制。利用阿伦尼乌斯方程和艾林方程计算了活化参数。吸附量随接触时间、初始染料浓度、温度和pH值等变量的增加而增加。
