02212nas a2200253   4500008004100000022001400041245010300055210006900158260007400227300000900301490000800310520132200318653001201640653001101652653000901663653002701672653002001699653001601719100002401735700002401759700002101783700002401804856013001828       2014                        eng d  a0049-697900aEnhanced mineralization of gaseous organic pollutant by photo-oxidation using Au-Doped TiO2/MCM-410 aEnhanced mineralization of gaseous organic pollutant by photooxi  aVAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDSbSPRINGERcFEB  a18470 v2253 a<p>The synthesis, characterization, and photocatalytic evaluation of titania-loaded MCM-41 with and without Au doping are reported in the present study. The samples were characterized by powder XRD, TEM, low temperature N-2 adsorption/desorption, UV-Vis, and FTIR. UV-induced vapor-phase photo-oxidation of acetone was used as a probe reaction to study the role of Au in mineralization of volatile organic compounds (VOCs), viz. acetone at different concentrations. The doping of Au in titania-loaded MCM-41 resulted in the decrease of BET surface area, total pore volume, and average pore size. UV-Vis diffuse reflectance spectra of Au-doped titania-loaded MCM-41 showed the red shift in their absorption bands compared to titania-loaded MCM-41. The activity of mineralization of acetone by photocatalysis for 2 % Au-doped titania-loaded MCM-41 was found to be similar to 1.6 times higher than titania-loaded MCM-41. The presence of cocatalytic nanosized gold might be responsible for their enhanced activity on account of the delayed recombination of electron/hole pair. Although, almost complete mineralization of acetone was observed irrespective of the initial concentration of acetone in air (up to 3.72 mol%) by all the catalysts, 2 wt.% Au-doped titania-loaded MCM-41 has shown the most enhanced activity.</p>10aAcetone10aDoping10aGold10aMineralization of VOCs10aPhoto-oxidation10aTiO2/MCM-411 aTangale, Nilesh, P.1 aBelhekar, Anuja, A.1 aKale, Kishor, B.1 aAwate, Shobhana, V.  uhttps://library.ncl.res.in/content/enhanced-mineralization-gaseous-organic-pollutant-photo-oxidation-using-au-doped-tio2mcm-0