竹炭对铜(Ⅱ)离子的吸附性能研究

Adsorption Properties of Bamboo Charcoal on Copper(II) Ion

研究了竹炭粒径和用量、吸附时间、温度以及铜(Ⅱ)离子初始浓度等因素对铜(Ⅱ)离子吸附效果的影响。结果表明:竹炭对铜(Ⅱ)离子吸附率随其粒径的减小而增大,而随其用量的增加而增大;铜(Ⅱ)离子初始浓度增大,竹炭对其离子吸附率减小;竹炭对铜(Ⅱ)离子的吸附可在2h达到平衡,最佳吸附温度为30℃。竹炭对铜(Ⅱ)离子具有较好的吸附效果,是较为理想的吸附铜离子的材料。

The effects of some factors such as particle size, the amount of bamboo charcoal, absorbing time, temperature, initial concentration of copper （ Ⅱ ） ion on the removing of copper （Ⅱ） ion are investigated in this paper, The results show that the adsorbing rate increases with the reduction of bamboo charcoal particle size and decreases with added amount of bamboo charcoal. With increased initial concentration of copper （ Ⅱ ） ion, the adsorbing rate falls. The adsorption reaches equilibrium in 2 hours and 30℃ is the best absorbing temperature. The investigations shows that the bamboo charcoal enjoys high adsorption capacities and excellent removing effects for copper （ Ⅱ ） ion and therefore can be used as an ideal absorptive material for the removing of copper （ Ⅱ ） ion.