Adsorption of roxarsone from aqueous solution onto multiwalled carbon nanotubes

Author

Jiang-Lin, Hu ; Zi-Lin, Tong ; Zhen-Hu, Hu ; Ke, Li

Author_Institution

Sch. of Civil Eng., Hefei Univ. of Technol., Hefei, China

fYear

2011

fDate

15-17 July 2011

Firstpage

5539

Lastpage

5541

Abstract

Roxarsone is an organic arsenic compound existing extensively in animal wastewater, while multiwalled carbon nanotubes (MWCNTs) is a good adsorbent for the removal of trace organic pollutants from aqueous solution. In this study, the effect of various experimental parameters, such as adsorbent content, initial pH, ionic strength and temperature was investigated using batch adsorption experiment. The results show that MWCNTs is an effective adsorbent for the removal of roxarsone from aqueous solution. The maximum adsorption capacity is 9.355 mg/g at 20°C. The adsorption of roxarsone from aqueous solution onto MWCNTs was spontaneous, exothermic, and followed Freundlich isotherms.

Keywords

adsorption; carbon nanotubes; organic compounds; pH; wastewater; C; Freundlich isotherms; adsorbent content; adsorption capacity; animal wastewater; aqueous solution; initial pH; ionic strength; multiwalled carbon nanotubes; organic arsenic compound; roxarsone; trace organic pollutants; Animals; Aquaculture; Carbon dioxide; Carbon nanotubes; Facsimile; Joints; Nanomaterials; adsorption; multiwalled carbon nanotubes (MWCNTs); roxarsone; thermodynamics;

fLanguage

English

Publisher

ieee

Conference_Titel

Mechanic Automation and Control Engineering (MACE), 2011 Second International Conference on

Conference_Location

Hohhot

Print_ISBN

978-1-4244-9436-1

Type

conf

DOI

10.1109/MACE.2011.5988280

Filename

5988280