Multifunctional core-shell Pd@Cu on MoS2 as a visible light-harvesting photocatalyst for synthesis of disulfide by S S coupling

• Published in: Applied catalysis. A, General Vol. 613; pp. 118025 - 118034
• Main Authors: Yusuf, Mohammad, Song, Sehwan, Park, Sungkyun, Park, Kang Hyun
• Format: Journal Article
• Language: English
• Published: AMSTERDAM Elsevier 05.03.2021; Elsevier Science SA
• Subjects: Catalytic activity; Chemical synthesis; Chemistry; Chemistry, Physical; Coupling; Diffuse reflectance spectroscopy; Electron microscopy; Electrons; Environmental Sciences; Environmental Sciences & Ecology; Life Sciences & Biomedicine; Microscopy; Molybdenum disulfide; Nanomaterials; Nanostructure; Photocatalysis; Photocatalysts; Photoelectrons; Photoluminescence; Physical Sciences; Science & Technology; Spectrum analysis; Thiols; X ray powder diffraction; GOLD NANOPARTICLES; SELECTIVE OXIDATION; Pd nanoparticles; MoS2; SULFIDES; Multifunctional structures; Core-shell; NANOCATALYST; CATALYTIC PERFORMANCE; SS coupling; Cu nanoparticles; REDUCTION; NANOPARTICLES SYNTHESIS; Photocatalysts; CARBON-DIOXIDE; EFFICIENT; TIO2
• ISSN: 0926-860X; 1873-3875
• DOI: 10.1016/j.apcata.2021.118025

Visible light harvesting materials are considered promising cost-effective heterogenous catalysts for organic synthesis. A novel and efficient synthesis of multifunctional core-shell Pd@Cu/MoS2 nanostructures is utilized for synthesis of disulfides by S-S Coupling. The Pd@Cu core-shell was obtained by one-pot hydrothermal synthesis, and a simple method was used to load it onto the MoS2. The as-prepared materials were characterized by scanning electron microscopy, transmission electron microscopy, X-ray powder diffraction, X-ray photo-electron spectroscopy, UV-vis diffuse reflectance spectroscopy, and photoluminescence spectroscopy. The Pd@Cu/MoS2 nanostructures revealed excellent photocatalytic activity, reusability, and stability towards the oxidative coupling of mercaptans to disulfanes. The outstanding photocatalytic activity of Pd@Cu/MoS2 will enhance interest in the field of multifunctional core-shell nanomaterials as photocatalysts for a wide variety of applications.