Integrated ZnO-Al2O3 nano particles as absorbent for heavy metal ions and organic impurities

Abstract

Nanotechnology is an emerging interdisciplinary technology that has been booming in many areas during recent decade. The objective of this work was to verify Activated Alumina for removal of heavy metal arsenic with designed filtration unit. Alumina and Zinc oxide nanoparticles were successfully synthesized using both sol-gel and chemical techniques. This study is mainly focused on the synthesis method of Al2O3-NPs using two different type of acids namely sulphuric acid and hydrochloric acid with the base NaOH and KOH. The water treatment filtration unit designed using AutoCAD software. The alumina is prepared to remove heavy metals, especially arsenic from drinking water in order to obtain clean water. Chemical synthesis method of ZnO-NPs was carried out using prepared sodium hydroxide and zinc nitrate heptahydrate zinc acetate. The samples were characterized by different techniques such as Fourier transform infrared spectra (FTIR) and UV-vis. The average crystallite size of synthesized alumina range from 7.1 to 28 nm.