Low cost synthesis of ZnO nano-particles, and characterization study for the device of water disinfection

摘要

The most fascinating trouble in this world is the water because water is the most central asset of human society. Several research groups across the world are working on it to solve the water problems particularly water impurities like organic, inorganic, and biological. Wastewater treatment industrials with nanomaterials are vital and extensive devices using the field of nanoscience and nanotechnology. Presently offered technologies are very effective for water treatment, but their costs are too high and have time overwhelming process. Hence, the synthesis of zinc oxide (ZnO) nanoparticles is proposed with help of co-precipitation method with no surfactant due to low cost and fast process for water disinfection/treatment. The antibacterial mechanism of ZnO nanoparticles is due to the nanoparticles size effect. The photocatalytic production of H_2O_2 is accountable for antimicrobial action of ZnO, and antibacterial activity may be existed by both Zn~(+2) ion and ZnO nanoparticles. XRD, SEM and EDS of ZnO nanoparticles were used to evaluate shape-size, morphology of particles and element constituent. The ZnO nanoparticles at nanoscale may be useful for antibacterial behavior on a huge spectrum of bacteria that is found in water impurities.