摘要
以柚皮为原料,制备了四种吸附剂,结果表明同一条件下柠檬酸修饰的柚皮吸附剂(SOP)对Pb2+的吸附效果最好,对SOP进行单因素实验,研究了吸附时间、Pb2+初始浓度、吸附剂用量对吸附性能的影响,分析了吸附过程的动力学和等温吸附规律,结果表明,SOP对铅离子的吸附符合二级吸附动力学模型,吸附等温线与Langmuir方程具有很好的拟合性。
Four kinds of adsorbent were prepared using naringin as a raw material.The result showed that under the same condition , naringin adsorbent modified with citric acid ( SOP ) had the best adsorption effect.Single factor experiments on the adsorption of Pb^ 2+by SOP were carried out.Various factors such as adsorption time , the amount of adsorbent and initial concentration of Pb ^2 +were investigated.The kinetic and adsorption isotherm were also studied.The results showed that the adsorption of Pb ^2+by SOP complied with second adsorption kinetics , and its adsorption isotherm corresponded to the form of Langmuir isotherm.
出处
《广州化工》
CAS
2014年第11期117-119,150,共4页
GuangZhou Chemical Industry
关键词
柚皮
柠檬酸
吸附
铅
naringin
citric acid
adsorption
lead