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化学改性橘子皮对Pb~(2+)的吸附性能

Keywords: 化学改性橘子皮,Pb2+,吸附动力学,吸附等温线

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Abstract:

研究了经化学改性的橘子皮吸附剂对Pb2+的吸附性能.考察了溶液pH值、吸附时间及Pb2+初始质量浓度对该吸附剂吸附性能的影响.结果表明,吸附过程可以很好地用准二级动力学方程描述,吸附等温线用Langmuir方程拟合效果优于Freundlich方程.pH4.5,30℃时最大吸附容量为146.4mg/g.经改性的橘子皮可重复使用5次以上.

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