三组分复合材料对镍离子(Ⅱ)的吸附研究  

Study on the adsorption of Ni^(2+) on three-component composite

作　　者：籍向东 先建宸 包盼丽 岳国仁 曹成 贾淑娟[1] Ji Xiangdong;Xian Jianchen;Bao Panli;Yue Guoren;Cao Cheng;Jia Shujuan(Hexi university,College of Chemistry and Chemical Engineering,Key Laboratory of Hexi Corridor Resources Utilization of Gansu,Zhangye 734000;Kaiyuan Bio-Tech Development Center,Hexi University,Zhangye 734000)

机构地区：[1]河西学院化学化工学院甘肃省河西走廊特色资源利用重点实验室,张掖734000 [2]河西学院甘肃省凯源生物技术开发中心,张掖734000

出　　处：《化工新型材料》2022年第7期78-81,86,共5页New Chemical Materials

基　　金：国家自然科学基金(21761011);大学生创新创业训练计划项目(201810740001);甘肃省高等学校科研资助项目(2018A-088)。

摘　　要：通过配位聚合的方式制备了一种新型的三组分复合材料(SC-GO-PANI),通过扫描电镜(SEM)等技术手段对结构进行了表征,并研究了吸附Ni^(2+)离子的性能。同时,系统考察了吸附剂用量、pH、初始浓度和共存阴离子对吸附性能的影响。结果表明:该材料具有交联的网状空间结构和相对较大的比表面积。在298K下,吸附去除率最高可达96.71%,达到国标饮用水标准。此外,对Ni^(2+)离子的吸附符合准二级动力学模型,属于单分子化学吸附,吸附等温线可用Freundlich方程描述。A new three-component composite material(SC-GO-PANI) was prepared by coordination polymerization.The structure was characterized by scanning electron microscopy(SEM) and other technical methods,and studied the adsorption performance for Ni^(2+) ions.At the same time,the influence of the amount of adsorbent,pH,initial concentration and coexisting anions on the adsorption performance was examined.The results shown that the material had cross-linked network space structure and relatively large specific surface area.At 298 K,the adsorption removal rate can reach up to 96.71%,reaching the national standard for drinking water.In addition,the adsorption of Ni^(2+) ions conformed to the quasi-second-order kinetic model and belonged to single-molecule chemical adsorption.The adsorption isotherm can be described by Freundlich equation.

关 键 词：聚苯胺 氧化石墨烯 纤维素磺酸盐 镍离子 吸附 

分 类 号：TQ129[化学工程—无机化工]