溶液pH值对不同粒径蛭石吸附Cu^(2+)、Pb^(2+)的影响

Effect of pH Value on Cu^(2+)、Pb^(2+) Adsorption Properties of Veimiculites with Different Particle Size

研究了蛭石对重金属离子的吸附,并初步探讨了不同粒径的蛭石吸附Cu2+、Pb2+的pH值影响范围。结果表明:pH值是影响蛭石吸附重金属离子的一个重要因素,且蛭石的粒径越小,其pH值的影响范围越大,对于Cu2+的吸附效果明显高于Pb2+。

The ranges of pH value affecting the adsorption property of vermiculites with different particle size on Cu^2＋ ,Pb^2＋ are discussed in this paper. The results show that pH value is a primary effective factor influencing the adsorption property of vermiculite on the heavy metal ions, the range of pH value affecting the adsorption become greater along with the decrease of the particle size of the vermiculite, the adsorption property of vermiculite on Cu^2＋ is superior to one on Pb^2＋.