NOVEL APPROACH OF IMINO FUNCTIONALIZED SILVER NANOPARTICLES AS ANTIFUNGAL AGENT AND ADSORPTION OF Pb (II) ION FROM INDUSTRIAL EFFLUENTS

Abstract

The Schiff base named N-(2-hydroxylbenzylidene)-2-amino pyridine [HBAP] is formed from condensation of equimolar (1:1) quantity of salicylaldehyde and 2- amino pyridine in alcoholic medium. The prepared Schiff base was characterized by elemental analysis, FTIR, UV-VIS and NMR studies. Synthesis of silver nanoparticles followed by trapping of silver nanoparticles with above mentioned Schiff base and characterized by SEM, FTIR, UV-VIS and NMR. Antifungal activity of test compounds was assessed against fungal such as Aspergillus niger, Aspergillus nidulans and Candida albicans by paper disc method at room temperature and results were compared with clotrimazole. The antifungal study revealed that silver nanoparticle coated with Schiff base showed excellent activity against A. niger, A. nidulans, and C. albicans. With the development of nanotechnology, silver nanoparticle anchored with Schiff base was used as adsorbent with sugarcane baggase as a solid phase and used in removal of heavy metal from industrial effluent. The metal ion was analyzed by AAS (Atomic absorption spectroscopy). The effects of several parameters that affect the adsorption of the metal ion including initial metal ion concentration, contact time, Schiff base weight and pH were examined.