| 米糠对苯胺的吸附行为及机理 |
| |
| 引用本文： | 李芳郴,戴友芝,罗岳平,游志敏. 米糠对苯胺的吸附行为及机理[J]. 过程工程学报, 2009, 9(2): 274-278 |
| |
| 作者姓名： | 李芳郴 戴友芝 罗岳平 游志敏 |
| |
| 作者单位： | 湘潭大学化工学院,湖南,湘潭,411105;湖南省环境监测中心站,湖南,长沙,410004 |
| |
| 摘 要： | 通过静态吸附实验，研究了米糠粒径、投加量、pH、温度等对米糠吸附苯胺效果的影响，从热力学和动力学方面对吸附过程进行了分析，并通过红外光谱探讨了吸附机理. 结果表明，在所研究的条件范围内，米糠对苯胺的吸附能力随着米糠粒径的增大而变小，随着温度的升高而增大，酸性条件有利于吸附进行；在303 K的中性环境下，饱和吸附量qmax可达1.34 mg/g. 米糠对苯胺的吸附遵循Langmuir等温线，吸附过程是自发进行的吸热反应，符合拟二级动力学反应控制的化学吸附过程，存在一定量的氢键吸附.
|
| 关 键 词： | 米糠 吸附 苯胺 动力学 热力学 机理 |
| 收稿时间： | 2008-12-04 |
| 修稿时间： | 2009-01-13 |
Adsorption Behavior and Mechanism of Aniline on Rice Bran |
| |
| LI Fang-chen,DAI You-zhi,LUO Yue-ping,YOU Zhi-min. Adsorption Behavior and Mechanism of Aniline on Rice Bran[J]. Chinese Journal of Process Engineering, 2009, 9(2): 274-278 |
| |
| Authors: | LI Fang-chen DAI You-zhi LUO Yue-ping YOU Zhi-min |
| |
| Affiliation: | Department of Environmental Science and Engineering, Xiangtan UniversityDepartment of Environmental Science and Engineering, Xiangtan University, XiangtanHunan Environmental Monitoring StationDepartment of Environmental Engineering, Xiangtan University |
| |
| Abstract: | The effects of particle size,biosorbent dosage,pH and temperature on biosorption capacity were studied with static experiments,and the adsorption process was analyzed in thermodynamics and kinetics,and the adsorption mechanism analyzed by infrared spectroscopy.The results showed that in the studied condition range,the initial adsorption rate increased with decrease in the rice bran particle size and increased with increasing temperature.Acidic conditions were conducive to adsorption.At 303 K and in neutral ... |
| |
| Keywords: | rice bran adsorption aniline kinetics thermodynamic mechanism |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《过程工程学报》浏览原始摘要信息 |
|
点击此处可从《过程工程学报》下载全文 |
|
