Oxidative Photodecarboxylation of .ALPHA.-Hydroxycarboxylic Acid Derivatives with FSM-16 under Visible Light Irradiation of Fluorescent Lamp

Retracted Article: Vibrational evidence for the “missing link” in structural kinship between kanemite and FSM-16 mesoporous silica

“…In particular, FSM-16 solids were found to possess higher thermal and hydrothermal stability than MCM-41 ones, and it was speculated that the effect is related to a higher degree of condensation within the pore walls of the former. 4,5 Also, comparison of photocatalytic activity of FSM-16 and MCM-41 in several organic transformations demonstrated superiority of the kanemitederived mesoporous silica [5][6][7] . Nevertheless, for nearly quarter of a century that elapsed from the discovery of FSM-16, the structural studies of these materials, carried out with a number of techniques such as XRD (including time-resolved technique), TEM, EXAFS, or 29 Si MAS NMR, did not find any trace of order within the FSM-16 silica walls, that might point to a structural kinship between the parent layered silicate and the resulting mesoporous solid.…”

Photodecomposition of Chloroform Catalyzed by Unmodified MCM‐41 Mesoporous Silica

“…Mesoporous silica has been widely used as a support for a variety of catalysts (1)(2)(3)(4); catalytic activity most often being achieved either by adsorbing a catalytic species on the silica surface (5)(6)(7)(8) or by incorporating one or more metal oxides during the synthesis of the mesoporous silica (9)(10)(11). Mesoporous silica has also been extensively used for photocatalytic reactions (12,13), in some cases unmodified, except for activation at high temperature (14)(15)(16)(17)(18)(19)(20)(21), but quite often by supporting the actual catalytic species (22)(23)(24)(25)(26) or by modifying the silica matrix (27,28).…”