An integrated approach to develop a compositehybrid material made of titanium dioxide functionalized withan organic conjugated phenol (DIOL) and silver NPs suitablefor the selective oxidation of water soluble aromatic alcoholsto aldehydes in water under UV irradiation and very mild conditions was used.The 86% selectivity observed for the Rutile/DIOL/Ag compositeis, to the best of our knowledge, the highest thus far reportedfor partial oxidation of aromatic alcohols to aldehydesin water suspensions of titanium dioxide.The method is general as it relies on the concomitant easieradsorption of the aromatic alcohol and more facile release ofthe aldehyde, coupled to fast interfacial electron transfer dueto the conjugated DIOL acting as a molecular electron bridgecovalently bound to both silver NPs and titanium dioxide.Modification of the shuttle molecule as well as utilization ofother metal NPs could potentially open the route to optimizationof the selective conversion for several other photocatalyticredox reactions mediated by similar advanced titanium dioxide-based composites.
|Titolo della pubblicazione ospite||Book of Abstracts of International summer workshop Nanoscience meets Metrology: size and shape engineering of nanoparticles towards improved technologies for energy, environment and health|
|Numero di pagine||1|
|Stato di pubblicazione||Published - 2015|
Palmisano, L., Parrino, F., & Loddo, V. (2015). TiO2 based Inorganic-Organic Hybrid Photocatalysts for Highly Selective Alcohol Partial Oxidation. In Book of Abstracts of International summer workshop Nanoscience meets Metrology: size and shape engineering of nanoparticles towards improved technologies for energy, environment and health (pagg. 108-108)