研究了改性竹炭对钯(Ⅱ)的吸附性能及影响因素.研究表明:竹炭对钯(Ⅱ)有良好的吸附性能,平衡吸附量为18.0 mg/g；竹炭对钯的吸附动力学可用准一级动力学描述,表观吸附速率常数k298=2.39×10-4/s,表现吸附活化能Ea=40.9 kJ/mol；钯在竹炭上的吸附符合Freundlich吸附等温线；温度升高,吸附量减小,表明吸附为放热过程；测得吸附热为:△H=-39.8 kJ/mol.%Adsorption behavior and influence factors of the modified bamboo - charcoal for Pd( Ⅱ) were studied. Experimental results show that bamboo - charcoal has a good adsorption ability for Pd (Ⅱ) , adsorption capacity and adsorption rate of equilibrium are 18.0 mg/g and 96. 1% , respectively. The studying kinetics shows that the adsorption kinetics of bamboo - charcoal for Pd( II) can be described by pseu-do first -order kinetics. The adsorption apparent rate constant k is equal to 2. 39 × 10-4/s and activation energy Ea is equal to 40. 9 kJ/mol at the temperature of 298 K. Freundlich isotherm model is well o-beyed. The studying thermodynamic shows that the adsorption process of bamboo - charcoal for Pd( II) is an exothermic process. The heat of adsorption (AH) is equal to -39. 8 kj/mol.
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