Modeling and Thermodynamics of Methylene Blue and Acid Blue 80 Adsorption onto Potato Residue Based Activated Carbon |
| |
| Authors: | LIU Yani LUO Xinsheng ZHANG Zhe ZHOU Pengxin YANG Zhiwang |
| |
| Institution: | 1. College of Science, Gansu Agricultural University, Lanzhou 730070, P. R. China;
2. Key Laboratory of Eco-environment-related Polymer Materials, Ministry of Education, Key Laboratory of Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, P. R. China |
| |
| Abstract: | A study was made on the adsorption kinetics and thermodynamics of methylene blue(MB) and acid blue 80(AB80) onto powder of activated carbon(PAC) prepared by chemical method from dry potato residue(DPR). The PAC was characterized by N2 adsorption-desorption isotherms analysis and scanning electron microscopy. The ma- ximum adsorption capacities of PAC for MB and AB80 at 303 K are 532.19 and 156.22 mg/g, respectively. The results indicate that the adsorption kinetics of the selected dyes on PAC is well-described by the pseudo-second order model. And their thermodynamic data were analyzed via the isotherms of Langmuir, Freundlich, Redlich-Peterson, Toth and Sips, and the thermodynamic parameters were calculated. The results show that PAC is a fast and effective adsorbent for removing the cationic dyes from aqueous solutions. |
| |
| Keywords: | Adsorption Activated carbon Methylene blue Acid blue 80 |
| 本文献已被 万方数据 等数据库收录！ |
| 点击此处可从《高等学校化学研究》浏览原始摘要信息 |
| 点击此处可从《高等学校化学研究》下载免费的PDF全文 |
|
