In situ biosynthesis of palladium nanoparticles on banana leaves extract-coated graphitic carbon nitride: An efficient and reusable heterogeneous catalyst for organic transformations and antimicrobial agent

Fecha de publicación: 01/05/2024
Fuente: Asqueous Extraction Byproducts
Abstract
In the present work, palladium nanoparticles embedded on banana leaves extract-modified graphitic carbon nitride [PdNPs@g-C3N4-BLE] was biogenically synthesized in a facile 3-step reaction in a clean and sustainable manner. In situ reduction of Pd(II) to Pd(0) was accomplished by the action of active phytochemicals present in the banana leaves extract as capping, reducing, and stabilizing agents. Therefore, the aforementioned synthesis of catalyst does not need toxic reagents, harsh conditions, and additional reductants. The structure and composition of the PdNPs@g-C3N4-BLE nanocatalyst were examined in detail through several spectroscopic and microscopic techniques. The PdNPs@g-C3N4-BLE nanocatalyst exhibited good catalytic activity in Suzuki–Miyaura cross-coupling and aryl halide cyanation reactions by giving high turnover numbers (TONs) and turnover frequencies (TOFs). The outstanding advantages of using the PdNPs@g-C3N4-BLE nanocatalyst are mild reaction conditions, short reaction time, heterogeneous nature, excellent yields, easy work-up procedure, and recyclability without any significant loss of catalytic activity. Additionally, the PdNPs@g-C3N4-BLE nanocatalyst showed remarkable antibacterial activity against gram-negative bacteria Escherichia coli and gram-positive bacteria Bacillus subtilis.