Kinetics and Equilibrium Isotherms on Methyl Violet Adsorption by Arundo Donax Root Activated Carbon

Author

Zhang, Chenglu ; Li, Yan ; Zhang, Jian ; Li, Cong

Author_Institution

Sch. of Environ. Sci. & Eng., Shandong Univ., Jinan, China

fYear

2009

fDate

11-13 June 2009

Firstpage

1

Lastpage

4

Abstract

Arundo donax root was used to prepare activated carbon by H₃PO₄ activation for the removal of methyl violet (MV). The activated carbon has a micro-mesoporous structure with BET surface area 1392 m²/g. Pseudo-second-order model could predict the adsorption kinetics for the entire process. The sorption involved several stages and the actual rate controlling step was film diffusion for the whole process. The equilibrium data were better represented by Freundlich model than Langmuir model. The adsorption of methyl violet onto Arundo donax root activated carbon was spontaneous and endothermic.

Keywords

Langmuir-Blodgett films; adsorption; biochemistry; diffusion; hydrogen compounds; mesoporous materials; reaction kinetics; Arundo donax root; BET surface area; Freundlich model; H₃PO₄; Langmuir model; activated carbon; adsorption kinetics; endothermic reaction; equilibrium isotherms; film diffusion; methyl violet adsorption; micromesoporous structure; pseudo-second-order model; Absorption; Furnaces; Heat transfer; Kinetic theory; Lakes; Land surface temperature; Organic materials; Predictive models; Pulp and paper industry; Soil;

fLanguage

English

Publisher

ieee

Conference_Titel

Bioinformatics and Biomedical Engineering , 2009. ICBBE 2009. 3rd International Conference on

Conference_Location

Beijing

Print_ISBN

978-1-4244-2901-1

Electronic_ISBN

978-1-4244-2902-8

Type

conf

DOI

10.1109/ICBBE.2009.5163004

Filename

5163004