Title :
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
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;
Conference_Titel :
Mechanic Automation and Control Engineering (MACE), 2011 Second International Conference on
Conference_Location :
Hohhot
Print_ISBN :
978-1-4244-9436-1
DOI :
10.1109/MACE.2011.5988280
