Piper betle leaves mediated synthesis of biogenic SnO2 nanoparticles for photocatalytic degradation of reactive yellow 186 dye under direct sunlight

Add time:08/22/2019    Source:sciencedirect.com

Development of benign and efficient approaches towards abatement of industrial grade toxic organic dyes from the fresh water resources is an evolving challenge. To this end, current study was focused on the removal of reactive yellow 186 dye (RY-186) dye using green synthesized SnO2 nanoparticles prepared from Piper betle leaf extract. As synthesized nanoparticles were characterized by pertinent spectroscopy and microscopy tools, which ascertained the formation of highly crystalline, spherical, and ultrafine nanoparticles of 8.4 nm diameter with tetragonal rutile structure. Nanoparticle catalyzed photolysis of RY-186 dye in presence of sunlight revealed degradation efficiency and apparent rate constant (K’app) values as 92.17% and 1.3 × 10−2 min−1, respectively. Kinetic analysis of the dye degradation process rendered manifestation of pseudo-first order kinetics. Current study demonstrated the application of biogenic SnO2 NPs as a heterogeneous catalyst towards the purification of industrially polluted water for the savage of the environment.

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