多壁碳纳米管对含洛克沙胂废水的吸附试验  

Adsorption of Multi-walled Carbon Nanotubes on Wastewater Containing Roxarsone

作　　者：荣义娟 章菲菲[1] 朱佳俊 孙维维 郑雯文 RONG Yi-juan;ZHANG Fei-fei;ZHU Jia-jun;SUN Wei-wei;ZHENG Wen-wen(School of Civil and Environmental Engineering,Anhui Xinhua University,Hefei 230088,China)

机构地区：[1]安徽新华学院土木与环境工程学院

出　　处：《兰州工业学院学报》2019年第6期85-89,共5页Journal of Lanzhou Institute of Technology

基　　金：国家级大学生创新训练项目(201812216038);安徽新华学院校级一般科研项目(2016zr012)

摘　　要：试验分析了壁碳纳米管对废水中的洛克沙胂的吸附作用.结果表明:随着吸附剂多壁碳纳米管质量的不断增加,总吸附能力变大,而单位质量多壁碳纳米管吸附的洛克沙胂质量降低;多壁碳纳米管对洛克沙胂的吸附动力学符合假二级动力学模型,相关系数R2可达1.000;吸附热力学可由Freundlich等温线吸附模型来表达,多壁碳纳米管吸附洛克沙胂的能力与温度成反比关系,即吸附是放热过程.In this experiment,the adsorption of multi-walled carbon nanotubes on roxarsone in wastewater is studied.The results shows that as the mass of multi-walled carbon nanotubes increases,the total adsorption capacity gets bigger,while the mass of adsorbed roxarsone by unit mass of multi-walled carbon nanotubes decreases.The adsorption kinetics of multi-walled carbon nanotubes on Roxarsone is in accordance with the pseudo second-order kinetic model,and the correlation coefficient R 2 can reach 1.000.The adsorption isotherms can be well described by Freundlich isotherm adsorption model.The adsorption ability of roxarsone on multi-walled carbon nanotubes is inversely proportional to temperature.That is to say the adsorption is the process of exothermic.

关 键 词：洛克沙胂 多壁碳纳米管 吸附 动力学 热力学 

分 类 号：X703[环境科学与工程—环境工程]