One-pot synthesis of peroxo-titania nanopowder and dual photochemical oxidation in aqueous methanol solution.
作者： Muthukonda Venkatakrishnan Shankar , Tetsuya Kako , Defa Wang , Jinhua Ye , None
DOI: 10.1016/J.JCIS.2008.11.019
关键词: Inorganic chemistry 、 Oxygen evolution 、 Aldehyde 、 Sol-gel 、 Aqueous solution 、 Formaldehyde 、 Photocatalysis 、 Chemistry 、 Methanol 、 Titanium oxide
摘要: Abstract A sol–gel hydrothermal method was developed to synthesize peroxo-titania powders and their photooxidation performances were conducted in aqueous methanol solution under visible light irradiation. Three kinds of using TiO 2 H O containing precursor sol with different dispersion mediums such as NH 3 aq NaOH aq, or pure water. Peroxo-titania powder prepared showed highest activity. Moreover, we found unique photofunctional properties: together formaldehyde production, the photo-excited electron also triggers oxygen evolution, although by (Degussa P-25) photocatalysis evolution observed from same solution.
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