Toluene Decompositions over Al-W-incorporated Mesoporous Titanosilicates Photocatalysts
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DOI: 10.5012/BKCS.2009.30.1.107
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摘要: This study investigated the decomposition activities of toluene on 10 mol% Al-W-incorporated mesoporous titano (15 mol %) silicates. The mesopore sizes observed in transmission electron microscopy images ranged from 2.0 to 5.0 nm, and pores were irregular addition Al or W ions, but changed regular hexagonal forms with simultaneous additions W. X-ray photon spectroscopy results showed a shift special peak for Ti2p Al-incorporated titanosilicates stronger binding energy compared those titanosilicates. Three O1s peaks spectra coexisted samples at 530.5 531.7, 533, 533.7eV, which assigned Ti-Os TiO2 Ti2O3, Si-O SiO2 Al-O Al2O3, respectively. molecules desorbed lower temperatures over W-incorporated titanosilicates, amounts also small; however, adsorbed much more toluene, particular Al7.5-W2.5-Ti15-Si75. photocatalytic was enhanced Al7.5-W2.5-Ti15-Si75 than Al- only.
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