Phosphating MIL-53(Fe) as cocatalyst modified porous NiTiO3 for photocatalytic hydrogen production. (April 2022)

• Record Type: Journal Article
• Authors: Li, Hongying; Gong, Haiming; Hao, Xuqiang; Wang, Guorong; Jin, Zhiliang
• Is Part Of: Renewable energy. Volume 188(2022)
• Page Start: 132
• Page End: 144
• Publication Date: 2022-04
• Subjects: MIL-53(Fe) -- Fe2P -- NiTiO3 -- Co-catalyst -- Hydrogen evolution; Renewable energy sources -- Periodicals; Power resources -- Periodicals; Énergies renouvelables -- Périodiques; Ressources énergétiques -- Périodiques; 333.794
• DOI: 10.1016/j.renene.2022.02.009
• Languages: English
• ISSNs: 0960-1481

Abstract

Abstract: Reasonably construct a new type of NiTiO3 /Fe2 P to modify porous perovskite materials and use simple high-temperature phosphating treatments. The results showed that the optimal hydrogen production performance of NiTiO3 /Fe2 P reached 299.00 μmol in 5 h, which is 3.68 times that of pure Fe2 P. The existence of metal-organic framework materials as supporting materials facilitates the dispersed growth of NiTiO3 and Fe2 P, and avoids the aggregation of nanorods and particles. The introduction of perovskite porous nanorods is the reason for the enhanced light absorption capacity of composite materials. In addition, transition metal phosphide Fe2 P as a co-catalyst can serve as an electron trapping center to receive electrons from NiTiO3 . Photoluminescence spectroscopy and electrochemical experiments have confirmed that transition metals have good conductivity and can effectively enhance the separation and transfer of carriers. Density functional theory calculations are used to calculate the band structure and density of states of NiTiO3 and Fe2 P. In conclusion, this study provides a new idea for improving the photocatalytic activity of perovskite materials by modifying porous nanorod NiTiO3 with derivatives of MOF materials.