Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7719343 | International Journal of Hydrogen Energy | 2014 | 6 Pages |
Abstract
A novel perovskite intercalated nanomaterial HLaNb2O7/(Pt, TiO2) is fabricated by successive intercalated reaction of HLaNb2O7 with [Pt(NH3)4]Cl2 aqueous solution, n-C6H13NH2/C2H5OH organic solution and acidic TiO2 colloid solution, followed by ultraviolet light irradiation. The gallery height and the band gap energy of HLaNb2O7/(Pt, TiO2) is less than 0.6Â nm and 3.14Â eV, respectively. The photocatalytic activity of HLaNb2O7/TiO2 is superior to that of unsupported TiO2 and is enhanced by the co-incorporation of Pt. The photocatalytic hydrogen evolution based on HLaNb2O7/(Pt, TiO2) is 240Â cm3Â hâ1Â gâ1 using methanol as a sacrificial agent under irradiation with wavelength more than 290Â nm from a 100-W mercury lamp. High photocatalytic activity of HLaNb2O7/(Pt, TiO2) may be due to the host with rare earth La element and perovskite structure, the quantum size effect of intercalated semiconductor and the coupling effect between host and guest.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Electrochemistry
Authors
Leqing Fan, Yuelin Wei, Yinghan Cheng, Yunfang Huang, Sancun Hao, Jihuai Wu,