Nanocarboneous materials in water: Interaction of nanocarbon(60) with soil and organic pollutants

[摘要] The property of nanosized colloidal C 60 (nano-C 60 ) suspensions prepared by ultra sonication method was examined for electrochemical properties and stability under different physiochemical conditions. Adsorption experiments of such materials to Lula soil and other two types of sediments were evaluated to investigate the interaction of nano-C 60 colloidal particles with soil organic carbon. Transport of nano-C 60 in porous media was examined in column tests at different ionic strength and flow rates. Interactions of nano-C 60 with two model organic pollutants 2,2',5,5'-polychlorinated biphenyl and phenantherene were studied by batch adsorption-desorption experiments and facilitated column transport experiments. It was found that the sorption of nanoparticles to different porous media and sorption of organic pollutants to nanoparticles can be modeled by a linear sorption isotherm and nano-C 60 can serve as carrier for the organic compounds, leading to further migration of these hydrophobic organic pollutants.

[发布机构] Rice University

[效力级别] science