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Sonocatalytic Activity of Porous Carbonaceous Materials for the Selective Oxidation of 4-Hydroxy-3,5-dimethoxybenzyl Alcohol

2024-03-28

Abstract

Selective oxidation, which is crucial in diverse chemical industries, transforms harmful chemicals into valuable compounds. Heterogeneous sonocatalysis, an emerging sustainable approach, urges in-depth exploration. In this work, we investigated N-doped or non-doped carbonaceous materials as alternatives to scarce, economically sensitive metal-based catalysts.

Having synthesized diverse carbons using a hard-template technique, we subjected them to sonication at frequencies of 22, 100, 500, and 800 kHz with a 50% amplitude. Sonochemical reaction catalytic tests considerably increased the catalytic activity of C-meso (non-doped mesoporous carbon material).

The scavenger test showed a radical formation when this catalyst was used. N-doped carbons did not show adequate and consistent sonoactivity for the selective oxidation of 4-Hydroxy-3,5 dimethoxybenzyl alcohol in comparison with control conditions without sonication, which might be associated with an acid – base interaction between the catalysts and the substrate and sonoactivity prohibition by piridinic nitrogen in N-doped catalysts.
 

Acknowledgments

We would like to express our sincere appreciation to the National Science Center (NCN), Poland, for their generous support under the research project OPUS 20 No. 2020/39/B/ST5/00076

https://​pho​to​-cata​ly​sis​.org/​p​r​o​j​e​c​t​s​/​n​a​n​o​e​n​g​i​n​e​e​r​i​n​g​-​o​f​-​m​u​l​t​i​c​o​m​p​o​n​e​n​t​-​m​e​t​a​l​-​f​r​e​e​-​c​a​r​b​o​n​a​c​e​o​u​s​-​m​a​t​e​r​i​a​l​s​-​f​o​r​-​b​i​o-oil

Sonocatalytic Activity of Porous Carbonaceous Materials for the Selective Oxidation of 4-Hydroxy-3,5-dimethoxybenzyl Alcohol

by Behdokht Hashemi Hosseini, Rafael L. Oliveira, Dariusz Łomot, Olga Chernyayeva, Juan C. Colmenares Quintero. Molecules 2024, 29(7), 1436;


DOI: 10.3390/molecules29071436


First published: March 2024
 

Article link (OPEN ACCESS!):

https://​doi​.org/​10​.​3390​/​m​o​l​e​c​u​l​e​s​29071436

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