The Investigation of Ability to Degradation and Removal of Various Dyes Using Silver Colloidal Nanoparticles

Colors are one of the most important pollutants of water, and only one entry into the water can significantly reduce the quality of water. In addition, due to the synthetic origin and the presence of complex molecules in the structure of colors, the purification process is sometimes accompanied by some problems. Colloidal nanoparticles play an important role in technology, especially in the manufacture of glass and ceramics, and are used as a suitable method for cleaning pollutants in water and wastewater. In this study, a chemical regeneration method was used to synthesize colloidal silver nanoparticles. Then, to evaluate the efficiency of synthetic silver nanoparticles, several solutions of dye and pigments such as sulfur, azo, reactive, cationic and anionic dyes were prepared and synthetic material was used for degradation of different colors. Finally, the effect of this colloidal nanoparticle on each of them was studied and compared. The results showed that silver colloidal nanoparticles have the ability to degradation and removal of methyl orange and methyl red dyes from aqueous samples, and these nanoparticles can be used for treatment the water and wastewater containing these dyes.