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Open AccessArticle

Influence of MoS2 on Activity and Stability of Carbon Nitride in Photocatalytic Hydrogen Production

1
Leibniz Institute for Catalysis at the University of Rostock, Albert-Einstein-Str. 29a, 18059 Rostock, Germany
2
Department of Chemistry, Technical University Berlin, Hardenbergstr. 40, 10623 Berlin, Germany
*
Authors to whom correspondence should be addressed.
Catalysts 2019, 9(8), 695; https://doi.org/10.3390/catal9080695
Received: 9 July 2019 / Revised: 14 August 2019 / Accepted: 15 August 2019 / Published: 17 August 2019
(This article belongs to the Special Issue Catalysts for Solar Fuels)
MoS2/C3N4 (MS-CN) composite photocatalysts have been synthesized by three different methods, i.e., in situ-photodeposition, sonochemical, and thermal decomposition. The crystal structure, optical properties, chemical composition, microstructure, and electron transfer properties were investigated by X-ray diffraction, UV-vis diffuse reflectance spectroyscopy, X-ray photoelectron spectroscopy, electron microscopy, photoluminescence, and in situ electron paramagnetic resonance spectroscopy. During photodeposition, the 2H MoS2 phase was formed upon reduction of [MoS4]2− by photogenerated conduction band electrons and then deposited on the surface of CN. A thin crystalline layer of 2H MoS2 formed an intimate interfacial contact with CN that favors charge separation and enhances the photocatalytic activity. The 2H MS-CN phase showed the highest photocatalytic H2 evolution rate (2342 μmol h−1 g−1, 25 mg catalyst/reaction) under UV-vis light irradiation in the presence of lactic acid as sacrificial reagent and Pt as cocatalyst. View Full-Text
Keywords: MoS2; C3N4; composite catalysts; photocatalytic hydrogen production; charge separation and transfer MoS2; C3N4; composite catalysts; photocatalytic hydrogen production; charge separation and transfer
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MDPI and ACS Style

Sivasankaran, R.P.; Rockstroh, N.; Kreyenschulte, C.R.; Bartling, S.; Lund, H.; Acharjya, A.; Junge, H.; Thomas, A.; Brückner, A. Influence of MoS2 on Activity and Stability of Carbon Nitride in Photocatalytic Hydrogen Production. Catalysts 2019, 9, 695. https://doi.org/10.3390/catal9080695

AMA Style

Sivasankaran RP, Rockstroh N, Kreyenschulte CR, Bartling S, Lund H, Acharjya A, Junge H, Thomas A, Brückner A. Influence of MoS2 on Activity and Stability of Carbon Nitride in Photocatalytic Hydrogen Production. Catalysts. 2019; 9(8):695. https://doi.org/10.3390/catal9080695

Chicago/Turabian Style

Sivasankaran, Ramesh P.; Rockstroh, Nils; Kreyenschulte, Carsten R.; Bartling, Stephan; Lund, Henrik; Acharjya, Amitava; Junge, Henrik; Thomas, Arne; Brückner, Angelika. 2019. "Influence of MoS2 on Activity and Stability of Carbon Nitride in Photocatalytic Hydrogen Production" Catalysts 9, no. 8: 695. https://doi.org/10.3390/catal9080695

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