节点文献
碳纳米管对对硝基苯胺和N,N-二甲基苯胺的吸附
Adsorption of 4-Nitroaniline and N, N-dimethylaniline on Carbon Nanotubes
【摘要】 测定了不同温度下碳纳米管对水溶液中对硝基苯胺和N,N-二甲基苯胺的吸附等温线,探讨了其吸附热力学特性和机理.研究结果表明:在实验范围内,碳纳米管对两种化合物的吸附都能较好的符合Freundlich模型,两种物质的吸附都是放热和熵减小的自发过程;吸附过程均具有物理吸附特征.
【Abstract】 The thermodynamic characteristics and mechanism of 4-nitroaniline and N, N-dimethylaniline adsorption by carbon nanotubes were studied and the adsorption isotherm line at different temperature were determined. The results showed that the adsorption of 4-nitroaniline and N, N-dimethylaniline accorded with Freundlich model well and that the adsorption is spontaneous, exothermic and decreasing entropy process. The process is physical adsorption.
【关键词】 碳纳米管;
对硝基苯胺;
N,N-二甲基苯胺;
吸附;
机理;
热力学;
【Key words】 carbon nanotubes; 4-nitroaniline; N, N-dimethylaniline; adsorption; mechanism; thermodynamics;
【Key words】 carbon nanotubes; 4-nitroaniline; N, N-dimethylaniline; adsorption; mechanism; thermodynamics;
【基金】 上海纳米科技专项基金(0252nm011)
- 【文献出处】 华东师范大学学报(自然科学版) ,Journal of East China Normal University(Natural Science) , 编辑部邮箱 ,2005年Z1期
- 【分类号】O647.31
- 【被引频次】21
- 【下载频次】330