【摘要】 活性炭是一种优良的吸附剂,具有高比表面积、大孔容、高吸附容量等特性。以松塔基为原料,采用不同的活化炭化条件制得一系列活性炭材料,并采用静态法研究了所制备的各种炭材料对锌离子的吸附性,并选出吸附最好的活性炭采用单一变量法对其进行了吸附锌离子的最优条件的探究。结果表明,由松塔制备的活性炭具有较高使用价值,对Zn2+吸附效果最佳的AC-400-3,吸附量达到42.95mg/g;吸附容量随温度升高而增大,pH值对吸附过程有很大的影响,pH=6~7时吸附容量最高;经过测试,材料具有优良的重复使用性能。更多还原

【Abstract】 Activated carbon is a good adsorbent,which having a high specific surface area,pore volume,high adsorption capacity and other characteristics.In this research,a series of activated carbon materials have been prepared under different carbonization conditions using bio-based materials pine cone as the raw material.At the same time,the absorption properties of various carbon materials towards zinc ion have been studied with the static method.Then chosen the best one,and explored the optimal conditions for the adsorption of zinc ions with thesimple variablemethod.The results showed that the adsorption result of AC-400-3towards Zn2+is the best.And the corresponding capacity is 42.95mg/g.In addition,the adsorption capacity increases with the increasing of temperature and pH value has a great influence on the absorption process,and when the pH is 6~7,the absorption capacity is highest.In adition,the material has excellent reuse property after being tested.更多还原