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Article

Synthesis and Characterization of Novel Phyto-Mediated Catalyst, and Its Application for a Selective Oxidation of (VAL) into Vanillin under Visible Light

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Department of Chemistry, The University of Jordan, Amman 11942, Jordan
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Department of Physics, Yarmouk University, Irbid 21163, Jordan
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Department of Physics, Al al-Bayt University, Mafraq 13040, Jordan
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Department of Physics, The University of Jordan, Amman 11942, Jordan
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Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824, USA
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Institute for Atmospheric and Earth System Research (INAR), University of Helsinki, PL 64, UHEL, FI-00014 Helsinki, Finland
*
Authors to whom correspondence should be addressed.
Catalysts 2020, 10(8), 839; https://doi.org/10.3390/catal10080839
Received: 4 July 2020 / Revised: 18 July 2020 / Accepted: 21 July 2020 / Published: 24 July 2020
(This article belongs to the Special Issue Advanced Nanomaterials - Synthesis and Applications in Catalysis)
Here, we report an efficient and highly selective oxidation of lignin model substrate using phyto-mediated ZnFe2O4 nanoparticle using Boswellia carterii extract. The nanocatalyst with an average size of 8 nm showed excellent photocatalytic activity of the synthesized carbonyl containing products under visible light irradiation. The catalytic activity and selectivity towards oxidation of vanillyl alcohol to vanillin with selectivity up to 99% at conversion over 98% and turn-over frequency values up to 1600 h−1 were obtained in the presence of H2O2 and base. The cubic spinel nano-ZnFe2O4 catalyst was characterized by powder-XRD, FESEM, HR-TEM and Mössbauer analysis. The demonstrated catalyst was robust and stable under the reaction conditions. Furthermore, it was easy to be separated from the reaction mixture and be reused for subsequent reactions up to 5 times without significant reactivity or selectivity loss. View Full-Text
Keywords: lignin; hydrogen peroxide; vanillyl alcohol; oxidation; nanoparticle; green catalyst; selective; visible light lignin; hydrogen peroxide; vanillyl alcohol; oxidation; nanoparticle; green catalyst; selective; visible light
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MDPI and ACS Style

Al-Hunaiti, A.; Mohaidat, Q.; Bsoul, I.; Mahmood, S.; Taher, D.; Hussein, T. Synthesis and Characterization of Novel Phyto-Mediated Catalyst, and Its Application for a Selective Oxidation of (VAL) into Vanillin under Visible Light. Catalysts 2020, 10, 839. https://doi.org/10.3390/catal10080839

AMA Style

Al-Hunaiti A, Mohaidat Q, Bsoul I, Mahmood S, Taher D, Hussein T. Synthesis and Characterization of Novel Phyto-Mediated Catalyst, and Its Application for a Selective Oxidation of (VAL) into Vanillin under Visible Light. Catalysts. 2020; 10(8):839. https://doi.org/10.3390/catal10080839

Chicago/Turabian Style

Al-Hunaiti, Afnan, Qassem Mohaidat, Ibrahim Bsoul, Sami Mahmood, Deeb Taher, and Tareq Hussein. 2020. "Synthesis and Characterization of Novel Phyto-Mediated Catalyst, and Its Application for a Selective Oxidation of (VAL) into Vanillin under Visible Light" Catalysts 10, no. 8: 839. https://doi.org/10.3390/catal10080839

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