Adsorption of arsenic (III) by a novel adsorbent prepared from Ocimum sanctum

Abstract

An economic novel alternative choice for chemical and physical methods for nanoparticles synthesis is green method. Green nano zinc adsorbent (ZnO-NPs-AS-Os) embedded with activated silica is synthesized from the aqueous leaf extract of Ocimum sanctum using Zinc acetate dihydrate and sodium hydroxide. The phytoconstituents present in the leaf extract is responsible for the formation, capping and stabilization of adsorbent (ZnO-NPs-AS-Os). The adsorbent is characterized by SEM for its morphology, XRD for its crystallinity, EDAX for its elemental constitution and FT- IR for phytocostituents present. The results confirmed the formed nano needle shaped adsorbent of 200nm is effective in removing As(III) ions from aqueous solution.