Journal
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
Volume 148, Issue -, Pages 265-275Publisher
ELSEVIER
DOI: 10.1016/j.ijbiomac.2020.01.107
Keywords
Hibiscus Rosasinensis L.; Biowaste; Pd NPs@Fe3O4-lignin; Suzuki-Miyaura; Cr(VI) reduction
Funding
- Iranian Nano Council
- University of Qom
- RUDN University Program 5-100
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Hibiscus Rosasinensis L extract mediated biosynthesis of Pd nanoparticles (NPs) and their deposition on the magnetic calcium lignosulfonate (MCaLig), as a simple and eco-friendly process for the preparation of Pd NPs@Fe3O4 lignin, is reported. The Pd NPs@Fe3O4-lignin was characterized by TEM, XRD, EDS, FE-SEM, Fr-IR, VSM, and UV-Vis. The magnetic NPs were employed as exceptional catalysts in the catalytic reduction of Cr(VI) and Suzuki-Miyaura reaction between PhB(OH)(2) and substituted aryl halides in EtOH:H2O as well as under ligand free conditions in the presence of K2CO3 with satisfactory product yields. Regeneration of the Pd NPs@Fe3O4-lignin was carried out by a magnet after the preparation of biphenyls. Catalytic efficiency retention was achieved after seven cycles. (C) 2020 Elsevier B.V. All rights reserved.
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