摘要
利用柚子皮纤维素为载体制成一种新型吸附剂季铵盐纤维素,对苯胺进行静态吸附,探讨了其吸附机理。结果表明:合成的季铵盐纤维素对苯胺有较好的吸附效果,吸附平衡遵守Langmuire和Freundlich方程,吸附剂对苯胺的吸附速率符合拟二级反应动力学,吸附反应的吉布斯函数变、焓变、熵变均为负值,说明该吸附反应属于自发进行的放热反应,反应容易进行,并很快达到吸附平衡。
A novel kind of adsorbent, quaternary ammonium cellulose, was prepared using shaddock skin as a carrier. The static adsorption of aniline on quaternary ammonium cellulose was studied. The adsorption mechanism was discussed. The results showed that the resulted quaternary ammonium cellulose had favorable adsorption efficiency for aniline and the adsorption equilibrium matched Langmuire and Freundlich equations. The adsorption rate of aniline on the adsorbent accorded with the pseudo-second order reaction kinetics. The variables of Gibbs function, enthalpy and entropy were negative, indicating that the adsorption reaction was a spontaneous exothermic process. The reaction started easily and reached the adsorption equilibrium quickly.
出处
《合成纤维工业》
CAS
CSCD
北大核心
2009年第1期22-25,共4页
China Synthetic Fiber Industry
基金
国家高技术研究发展计划(863)项目(2004AA649370)
国家杰出青年科学基金项目(50425927
50225926)
湖南省自然科学基金项目(07JJ6013)
关键词
柚子皮季胺盐纤维素改性纤维素苯胺废水吸附性能
shaddock skin
quaternary ammonium cellulose
modified cellulose
aniline wastewater
adsorption property
