Journal of Radioanalytical and Nuclear Chemistry

, Volume 299, Issue 3, pp 1155–1163

Removal, recovery and enrichment of metals from aqueous solutions using carbon nanotubes

  • Jin-Gang Yu
  • Xiu-Hui Zhao
  • Lin-Yan Yu
  • Fei-Peng Jiao
  • Jian-Hui Jiang
  • Xiao-Qing Chen
Article

DOI: 10.1007/s10967-013-2818-y

Cite this article as:
Yu, J., Zhao, X., Yu, L. et al. J Radioanal Nucl Chem (2014) 299: 1155. doi:10.1007/s10967-013-2818-y

Abstract

Environmental pollution caused by toxic metals (heavy metals, radioactive metals, etc.) is one of the major global issues, thus removal of toxic metals from contaminated water seems to be particularly important. On the other hand, the recovery and enrichment of metals, especially noble metals, from waste water is also crucial. To address these issues, nanotechnology plays an essential role in environmental monitoring and pollution control. To remove metals from contaminated water, or enrich metals from waste water, carbon nanotubes (CNTs) and their composites have attracted great attention due to their excellent adsorption performance. The removal efficiency for metal ions by CNTs was observed aroud 10–80 %, which could be improved to approach 100 % by selectively functionalizing CNTs with organic ligands. Herein, we review the applications of CNTs in treatment of toxic metal-containing wastewater for environmental monitoring and metals recovery. Due to their higher sensitivity and selectivity towards the enrichment of metals or detection of toxic metal pollution of the environment, and the latest research progress of using CNT composites for metal treatment is also discussed.

Keywords

AdsorptionCarbon nanotubesDetectionEnrichmentMetalsRemoval

Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2013

Authors and Affiliations

  • Jin-Gang Yu
    • 1
    • 2
    • 3
  • Xiu-Hui Zhao
    • 2
    • 3
  • Lin-Yan Yu
    • 2
    • 3
  • Fei-Peng Jiao
    • 2
    • 3
  • Jian-Hui Jiang
    • 1
  • Xiao-Qing Chen
    • 2
    • 3
  1. 1.College of Chemistry and Chemical EngineeringHunan UniversityChangshaChina
  2. 2.College of Chemistry and Chemical EngineeringCentral South UniversityChangshaChina
  3. 3.Key Laboratory of Resources Chemistry of Nonferrous MetalsMinistry of Education (Central South University)ChangshaChina