NANOTECHNOLOGY FOR DRINKING WATER PURIFICATION

摘要

Nanoparticles have been demonstrated to have useful absorption and catalytic activities but it is difficult to take advantage of these properties in the real world due to their small size. For example, in a water treatment column, they can simply suspend and flow away with the water or clog any filter that might be used to keep them in place. In fluidized catalytic beds they tend to escape from a reactor along with the fluidizing gases. In this paper, readily-prepared spherical aggregates of nanoparticles will be reported as a practical solution for the combination of nanoparticle reactivity with physical properties that are useful for industrial and water-purification processes.