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高等学校化学研究 ›› 2015, Vol. 31 ›› Issue (2): 298-302.doi: 10.1007/s40242-015-4275-3

• Articles • 上一篇    下一篇

Thermodynamics and Kinetics of Bacterial Cellulose Adsorbing Persistent Pollutant from Aqueous Solutions

LU Min, LÜ Xuan, XU Xiaohui, GUAN Xiaohui   

  1. School of Chemical Engineering, Northeast Dianli University, Jilin 132012, P. R. China
  • 收稿日期:2014-07-24 修回日期:2014-08-25 出版日期:2015-04-01 发布日期:2014-10-13
  • 通讯作者: LU Min E-mail:lumin19770919@163.com
  • 基金资助:

    Supported by the Natural Science Foundation of Jilin Province, China(No.20101553), the Science and Technology Research Projects of the Education Department of Jilin Province, China(No.2014-477) and the 12th Five-Year Enhancing Innovation Projects of Northeast Dianli University, China(No.2013).

Thermodynamics and Kinetics of Bacterial Cellulose Adsorbing Persistent Pollutant from Aqueous Solutions

LU Min, LÜ Xuan, XU Xiaohui, GUAN Xiaohui   

  1. School of Chemical Engineering, Northeast Dianli University, Jilin 132012, P. R. China
  • Received:2014-07-24 Revised:2014-08-25 Online:2015-04-01 Published:2014-10-13
  • Contact: LU Min E-mail:lumin19770919@163.com
  • Supported by:

    Supported by the Natural Science Foundation of Jilin Province, China(No.20101553), the Science and Technology Research Projects of the Education Department of Jilin Province, China(No.2014-477) and the 12th Five-Year Enhancing Innovation Projects of Northeast Dianli University, China(No.2013).

被引次数

1

摘要：

The adsorption capability of bacterial cellulose(BC) for anionic dye acid fuchsine was studied. Meanwhile, the processes of the adsorption were investignted and fitted by adsorption isotherm models, adsorption thermodynamics and adsorption kinetics models, respectively. The changes of BC before and after adsorbing acid fuchsine were investigated via scanning electron microscopy(SEM) and Fourier transform infrared spectroscopy(FTIR) to further explain the adsorption mechanism. The results show that acid fuchsine could be effectively adsorbed by BC. The adsorption process was fitted well by Langmuir equation and the pseudo-second order kinetics, indicating that the adsorption process was monolayer molecule adsorption with the main action of chemical adsorption. The adsorption process was spontaneous and endothermic. Glucuronic acid groups and hydroxyl groups were responsible for the adsorption of acid fuchsine on BC.

关键词: Adsorption thermodynamics, Adsorption kinetics, Persistent pollutant, Bacterial cellulose

Abstract:

The adsorption capability of bacterial cellulose(BC) for anionic dye acid fuchsine was studied. Meanwhile, the processes of the adsorption were investignted and fitted by adsorption isotherm models, adsorption thermodynamics and adsorption kinetics models, respectively. The changes of BC before and after adsorbing acid fuchsine were investigated via scanning electron microscopy(SEM) and Fourier transform infrared spectroscopy(FTIR) to further explain the adsorption mechanism. The results show that acid fuchsine could be effectively adsorbed by BC. The adsorption process was fitted well by Langmuir equation and the pseudo-second order kinetics, indicating that the adsorption process was monolayer molecule adsorption with the main action of chemical adsorption. The adsorption process was spontaneous and endothermic. Glucuronic acid groups and hydroxyl groups were responsible for the adsorption of acid fuchsine on BC.

Key words: Adsorption thermodynamics, Adsorption kinetics, Persistent pollutant, Bacterial cellulose