An enhanced system of modified zinc oxide nanoparticles for the effective removal of dyes from wastewater

摘要

An enhanced system of modified zinc oxide nanoparticles for the effective removal of dyes from wastewater, comprising:a magnetic stirrer to stir 2 M NaOH solution, dripped into a 1 M ZnSO4 solution, stirring the resulting solution for 12 hours;a filtration unit for separating white precipitation;a continuous kiln with the filtration unit for drying the washed precipitation at 100oC; where 0,5 mol/l glycine solution is added to the produced ZnO nanoparticles for surface modification at pH 6; anda vacuum chamber for vacuum drying of separated and washed ZnO nanoparticles at room temperature.