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In Situ Generation of H2O2 over MoOx Decorated on Cu2O@CuO Core-Shell Particle Nanoarchitectonics for Boosting Photocatalytic Oxidative Desulfurization.
Zhao, Xinyu; Xie, Suting; Wang, Dongxiao; Niu, Hao; Yang, Huawei; Yang, Lixia; Bai, Liangjiu; Wei, Donglei; Chen, Hou.
Afiliación
  • Zhao X; School of Chemistry and Materials Science, Ludong University, Yantai 264025, P. R. China.
  • Xie S; School of Chemistry and Materials Science, Ludong University, Yantai 264025, P. R. China.
  • Wang D; School of Chemistry and Materials Science, Ludong University, Yantai 264025, P. R. China.
  • Niu H; School of Chemistry and Materials Science, Ludong University, Yantai 264025, P. R. China.
  • Yang H; School of Chemistry and Materials Science, Ludong University, Yantai 264025, P. R. China.
  • Yang L; School of Chemistry and Materials Science, Ludong University, Yantai 264025, P. R. China.
  • Bai L; School of Chemistry and Materials Science, Ludong University, Yantai 264025, P. R. China.
  • Wei D; School of Chemistry and Materials Science, Ludong University, Yantai 264025, P. R. China.
  • Chen H; School of Chemistry and Materials Science, Ludong University, Yantai 264025, P. R. China.
ACS Appl Mater Interfaces ; 16(5): 5957-5964, 2024 Feb 07.
Article en En | MEDLINE | ID: mdl-38285625
ABSTRACT
Photocatalytic oxidation desulfurization (PODS) has emerged as a promising, ecofriendly alternative to traditional, energy-intensive fuel desulfurization methods. Nevertheless, its progress is still hindered due to the slow sulfide oxidation kinetics in the current catalytic systems. Herein, we present a MoOx decorated on a Cu2O@CuO core-shell catalyst, which enables a new, efficient PODS pathway by in situ generation of hydrogen peroxide (H2O2) with saturated moist air as the oxidant source. The photocatalyst delivers remarkable specific activity in oxidizing dibenzothiophene (DBT), achieving a superior rate of 7.8 mmol g-1 h-1, while maintaining a consistent performance across consecutive reuses. Experimental investigations reveal that H2O2 is produced through the two-electron oxygen reduction reaction (ORR), and both H2O2 and the hydroxyl radicals (•OH) generated from it act as the primary reactive species responsible for sulfide oxidation. Importantly, our catalyst accomplishes complete PODS of real diesel fuel, underscoring an appealing industrial prospect for our photocatalyst.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: ACS Appl Mater Interfaces Asunto de la revista: BIOTECNOLOGIA / ENGENHARIA BIOMEDICA Año: 2024 Tipo del documento: Article Pais de publicación: Estados Unidos
Texto completo
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XML
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: ACS Appl Mater Interfaces Asunto de la revista: BIOTECNOLOGIA / ENGENHARIA BIOMEDICA Año: 2024 Tipo del documento: Article Pais de publicación: Estados Unidos