【摘要】 通过测定不同温度、浓度下的吸咐速率曲线和吸咐等温线 ,研究了Mn2 +在烟草上的吸咐动力学和热力学。结果表明 ,烟草对Mn2 +的吸咐速率快 ,吸咐热效应高 ;吸咐动力学过程可由lagergren一级动力学模式较好地描述 ,且吸咐主要属内扩散控制 ;吸咐等温模型符合Lang muir等温吸咐机理。更多还原

【Abstract】 Properties of adsorption kinetcs and thermodynamics of metal manganese(Ⅱ)ion on tobacco weere studied by determining adsorption curves and adsorption isotherms on different temperature and concentrtian. The results show that adsorbing rate of tobacoo for Mn(Ⅱ)ion is fast and heat effect of adsoption is high;The process of dynamics for the adsorption can be simulated by Lagergren first order kinetic model, meanwhile, internal diffusion is the rate-controlling step; adsorption isotherm is in accordance shit Langmuir mechanism of isothermal adsorption.更多还原