Nano-Magnetic NiFe2O4 and Its Photocatalytic Oxidation of Vanillyl Alcohol—Synthesis, Characterization, and Application in the Valorization of Lignin

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Al-Hunaiti, A.; Ghazzy, A.; Sweidan, N.; Mohaidat, Q.; Bsoul, I.; Mahmood, S.; Hussein, T. Nano-Magnetic NiFe2O4 and Its Photocatalytic Oxidation of Vanillyl Alcohol—Synthesis, Characterization, and Application in the Valorization of Lignin. Nanomaterials 2021, 11, 1010.

Title: Nano-Magnetic NiFe2O4 and Its Photocatalytic Oxidation of Vanillyl Alcohol—Synthesis, Characterization, and Application in the Valorization of Lignin
Author: Al-Hunaiti, Afnan; Ghazzy, Asma; Sweidan, Nuha; Mohaidat, Qassem; Bsoul, Ibrahim; Mahmood, Sami; Hussein, Tareq
Publisher: Multidisciplinary Digital Publishing Institute
Date: 2021-04-15
URI: http://hdl.handle.net/10138/329334
Abstract: Here, we report on a phyto-mediated bimetallic (NiFe<sub>2</sub>O<sub>4</sub>) preparation using a <i>Boswellia carterii</i> extract, which was characterized by XRD, FT-IR, TGA, electron microscopy, magnetic spectroscopy, and Mössbauer spectroscopy measurements. The prepared nano-catalysts were tested for oxidation of lignin monomer molecules—vanillyl alcohol and cinnamyl alcohol. In comparison with previously reported methods, the nano NiFe<sub>2</sub>O<sub>4</sub> catalysts showed high photocatalytic activity and selectivity, under visible light irradiation with a nitroxy radical initiator (2,2,6,6-tetramethylpiperidinyloxy or 2,2,6,6-tetramethylpiperidine 1-oxyl; TEMPO) at room temperature and aerobic conditions. The multifold advantages of the catalyst both in terms of reduced catalyst loading and ambient temperature conditions were manifested by higher conversion of the starting material.


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