APPLICATIONS OF METALS AND SEMICONDUCTORS NANOPARTICLES

Nanoparticles are materials that are considered to have the dimension ranging from 1-100nm. The word nano originates from the Greek language meaning “Darf” as the word implies it connotes very small dimension. Nanoparticles can be classified base on their origin, these materials could be engineered, incidental or natural occurring. Engineered nanoparticles are the once that are produced through a chemical or physical process, while incidental nanoparticles are exhaust from machine, vehicles, and industries, the natural occurring nanoparticles are fund existing in nature, for example, dust particles.

PHOTOCATALYSIS AS A VIABLE MEANS OF DEGRADING AZO DYES

The presence of synthetic chemicals and man-made activities has constituted a major source of water and land pollution, the contamination of biosphere have become a great concern to environmentalist, scientists, and the whole humanity. These pollutants are destroying the aesthetic value of the environment and causing the earth to be unfit or inhabitable to man.