Affiliation:
1. Centre for Nano and Material Sciences JAIN (Deemed to be University) Jain Global Campus, Kanakapura road Bangalore 562112 India
2. Department of Chemistry Education Chungbuk National University Cheongju 28644 Republic of Korea
3. Department of Chemistry Indian Institute of Technology Bombay Mumbai 400076 India
Abstract
The sustainable and environmentally benign biogenic synthesis of manganese‐oxide nanoparticles (MnO2 NPs) in a single crystalline δ‐phase and its subsequent synthetic utility have been described. The synthesized δ‐MnO2 NPs were characterized using scanning electron microscopy (SEM), energy dispersive X‐ray (EDX), and X‐ray diffraction (XRD) analysis techniques. The detailed analysis envisages the reduction of Mn(VII) to Mn(IV) was facilitated by various phytochemicals present in the aq. mango leaves extract, avoiding the use of external ligand source. The synthesized δ‐MnO2 NPs were perceived in a single delta (δ) monoclinic crystalline phase, wherein a spherical agglomerated morphology was displayed with a particle size of <5 nm. Further, the utility of newly developed δ‐MnO2 NPs was showcased for alpha‐keto‐alkylation and quinoline synthesis via hydrogen autotransfer and the acceptorless dehydrogenative coupling strategy. Moreover, a series of control experiments, mechanistic elucidation, catalyst recyclability, and a dye removal study were demonstrated.
Funder
Science and Engineering Research Board
Subject
Inorganic Chemistry,General Chemistry
Cited by
4 articles.
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