柠檬酸修饰柚皮对铅离子的吸附研究  

Study on Adsorption of Pb^(2+) by Naringin Modified with Citric Acid

作　　者：黄海霞[1] 董海英[1] 

机构地区：[1]绵阳师范学院化学与化学工程学院,四川绵阳621000

出　　处：《广州化工》2014年第11期117-119,150,共4页GuangZhou Chemical Industry

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.

关 键 词：柚皮 柠檬酸 吸附 铅 

分 类 号：O636.1[理学—高分子化学]