Green synthesis of silver‐doped metal hexacyanoferrates nanostructures for efficient cleanup of endocrine‐disrupting pesticides

Abstract

Herein, inexpensive and eco‐friendly approach for the green synthesis of silver‐doped metal hexacyanoferrates (Ag@MHCFs) nanocomposite using green tea extract has been reported. Silver‐doped MHCF nanocatalysts were used to photo‐degradation endocrine disruptor pesticides, namely endosulfan (ES) and atrazine (AT), from water under direct Sunlight. Spectroscopic and electron microscopic techniques confirmed the successful synthesis of nanomaterials. Ag@FeHCF observed maximum degradation efficiency due to their high surface area (89.3 m2g−1), significant zeta potential (−43.4 mV), lower band gap (1.5 eV), and low photoluminescence intensity as compared to other Ag doped MHCFs. Best degradation results showed with concentration amount (5 mg L−1), dose (20 mg of ES; 15 mg of AT), at neutral pH under sunlight irradiation. Degradation up to 98% for ES and 96% for AT was reported. The degradation ensued by Langmuir adsorption and first‐order kinetics. GC–MS analysis showed the degradation of pesticides into CO2, H2O, and harmless minor metabolites under Sunlight. Ag@FeHCF have indicated high reusability (n = 10), ensuring their charge separation, stability, and sustainability. Ag@MHCF nanoparticles may show as substitute catalysts for industrial use with a fervent scope.