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Published on: April 15, 2013
Aqueous adsorption and removal of organic contaminants by carbon nanotubes
Jin-Gang Yu1, Xiu-Hui Zhao2, Hua Yang2
1College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan 410083, China; College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan 410082, China; Key Laboratory of Resources Chemistry of Nonferrous Metals, Ministry of Education, Central South University, Changsha, Hunan 410083, China.
Abstract:
Organic contaminants have become one of the most serious environmental problems, and the removal of organic contaminants (e.g., dyes, pesticides, and pharmaceuticals/drugs) and common industrial organic wastes (e.g., phenols and aromatic amines) from aqueous solutions is of special concern because they are recalcitrant and persistent in the environment. In recent years, carbon nanotubes (CNTs) have been gradually applied to the removal of organic contaminants from wastewater through adsorption processes. This paper reviews recent progress (145 studies published from 2010 to 2013) in the application of CNTs and their composites for the removal of toxic organic pollutants from contaminated water. The paper discusses removal efficiencies and adsorption mechanisms as well as thermodynamics and reaction kinetics. CNTs are predicted to have considerable prospects for wider application to wastewater treatment in the future.
