Efficient hydrogen production over MOFs (ZIF-67) and g-C3N4 boosted with MoS2 nanoparticles. (19th July 2018)

• Record Type: Journal Article
• Authors: Wang, Zejin; Jin, Zhiliang; Wang, Guorong; Ma, Bingzhen
• Is Part Of: International journal of hydrogen energy. Volume 43:Number 29(2018)
• Page Start: 13039
• Page End: 13050
• Publication Date: 2018-07-19
• Subjects: g-C3N4/MOF/MoS2 photocatalyst -- ZIF-67 -- Hydrogen production -- MoS2 nanoparticles -- MOFs; Hydrogen as fuel -- Periodicals; Hydrogène (Combustible) -- Périodiques; Hydrogen as fuel; Periodicals; 665.81
• DOI: 10.1016/j.ijhydene.2018.05.099
• Languages: English
• ISSNs: 0360-3199

Abstract

Abstract: MOFs (ZIF-67) and g-C3 N4 catalyst-modified MoS2 nanoparticles are prepared by means of doping g-C3 N4 in the process of ZIF-67 formation and then introducing MoS2 nanoparticles on the surface of collaborative structure between MOFs and g-C3 N4 . The MOFs (ZIF-67) and g-C3 N4 catalyst-modified MoS2 photocatalyst exhibits efficient hydrogen production with about 321 μmol under visible light irradiation in 4 h, which is almost about 30 times higher than that of over the pure g-C3 N4 photocatalyst. A series of characterization studies such as SEM, XRD, TEM, EDX, XPS, UV–vis DRS, FTIR, transient fluorescence and electro-chemistry show that the novel structure of g-C3 N4 and MOF is formed, the more active sites appears and the efficiency of photo-generated charge separation is improved. MoS2, as a narrow band semiconductor, is grafted on the surface of g-C3 N4 /MOF, which could effectively harvest visible light and swift charge separation. The results are well mutual corroboration with each other. In addition, a eosin Y-sensitized reaction mechanism is introduced. Highlights: MOFs (ZIF-67) and g-C3 N4 catalyst-modified MoS2 nanoparticles are successfully prepared. Electronic transmission efficiency is improved by metal frame structure. The MOFs (ZIF-67) and g-C3 N4 catalyst-modified MoS2 photocatayst exhibits efficient hydrogen production.