Chromium-incorporated TUD-1 as a new visible light-sensitive photo-catalyst for selective oxidation of propane

摘要

Chromium was incorporated in the framework of TUD-1 mesoporous silica by a one-pot synthesis procedure,using triethanolamine as a bi-functional template.The Cr-TUD-1 catalyst was characterized by means of X-ray diffraction,high-resolution transmission electron microscopy,UV-vis and Raman spectroscopy,as well as elemental analysis and N_2 sorption measurements.The results indicate that chromium is incorporated as tetrahedrally co-ordinated Cr~(6+) in the framework of TUD-1.When tested as a catalyst for the photo-oxidation of propane,Cr-TUD-1 showed high activity and high selectivity towards acetone under visible light irradiation (lambda = 435 nm).