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Article

Oxidative Bio-Desulfurization by Nanostructured Peroxidase Mediator System

1
Department of Biological and Ecological Sciences, University of Tuscia, Via S. Camillo de Lellis snc, 01100 Viterbo, Italy
2
Department of Physical and Chemical Sciences, University of L’Aquila, Via Vetoio I, Coppito, 67100 L’Aquila, Italy
*
Authors to whom correspondence should be addressed.
Catalysts 2020, 10(3), 313; https://doi.org/10.3390/catal10030313
Received: 21 February 2020 / Revised: 5 March 2020 / Accepted: 6 March 2020 / Published: 9 March 2020
(This article belongs to the Special Issue State of the Art and Future Trends in Nanostructured Biocatalysis)
Bio-desulfurization is an efficient technology for removing recalcitrant sulfur derivatives from liquid fuel oil in environmentally friendly experimental conditions. In this context, the development of heterogeneous bio-nanocatalysts is of great relevance to improve the performance of the process. Here we report that lignin nanoparticles functionalized with concanavalin A are a renewable and efficient platform for the layer-by-layer immobilization of horseradish peroxidase. The novel bio-nanocatalysts were applied for the oxidation of dibenzothiophene as a well-recognized model of the recalcitrant sulfur derivative. The reactions were performed with hydrogen peroxide as a green primary oxidant in the biphasic system PBS/n-hexane at 45 °C and room pressure, the highest conversion of the substrate occurring in the presence of cationic polyelectrolyte layer and hydroxy-benzotriazole as a low molecular weight redox mediator. The catalytic activity was retained for more transformations highlighting the beneficial effect of the support in the reusability of the heterogeneous system. View Full-Text
Keywords: oxidative bio-desulfurization; lignin nanoparticles; horseradish peroxidase; dibenzothiophene oxidative bio-desulfurization; lignin nanoparticles; horseradish peroxidase; dibenzothiophene
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MDPI and ACS Style

Capecchi, E.; Piccinino, D.; Bizzarri, B.M.; Botta, L.; Crucianelli, M.; Saladino, R. Oxidative Bio-Desulfurization by Nanostructured Peroxidase Mediator System. Catalysts 2020, 10, 313. https://doi.org/10.3390/catal10030313

AMA Style

Capecchi E, Piccinino D, Bizzarri BM, Botta L, Crucianelli M, Saladino R. Oxidative Bio-Desulfurization by Nanostructured Peroxidase Mediator System. Catalysts. 2020; 10(3):313. https://doi.org/10.3390/catal10030313

Chicago/Turabian Style

Capecchi, Eliana; Piccinino, Davide; Bizzarri, Bruno M.; Botta, Lorenzo; Crucianelli, Marcello; Saladino, Raffaele. 2020. "Oxidative Bio-Desulfurization by Nanostructured Peroxidase Mediator System" Catalysts 10, no. 3: 313. https://doi.org/10.3390/catal10030313

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