Fluorescence of pyrene in sol-gel silica derived from triethoxysilane

Synthesis of Hierarchically Porous Hydrogen Silsesquioxane Monoliths and Embedding of Metal Nanoparticles by On‐Site Reduction

“…The weight gain is attributed to the thermal oxidation of Si–H to Si–O–Si and Si–OH 24. This thermal decomposition temperature of Si–H moiety in HY210 is comparable to the thermal behavior reported for HSQ xerogels reported previously 16, 17. It can be concluded from TG‐DTA analysis that the Si–H moiety present in HY210 is stable up to 350 °C.…”

“…This restricts the sol‐gel route for HSQ to neutral of weakly acidic paths. Thus, only a few sol‐gel‐derived HSQ products have been reported in the form of film 16. Recently, the group of Ozin has made a considerable progress for the preparation of periodically mesoporous particles from triethoxysilane 17.…”

Photochemistry of azobenzene in sol–gel systems

“…In order to verify the surface effect, surface modified xerogels were prepared from the mixture of MTEOS and TEOS because the introduction of alkyl groups decreases the surface silanol groups of xerogels [22,25,26]. Fig.…”

Optimisation of sol-gel-derived silica films for optical oxygen sensing

“…In order to enhance the hydrophobicity, films were fabricated, as described in Section 2, from a 1 : 1 mixture of TEOS and HTEOS(triethoxysilane). HTEOS is a modified precursor which serves to remove the surface silanol (Si-OH) groups, and replace them with Si-H and Si-R groups which have a poor afinity for water [7]. The quenching response of an R = 2 TEOS/HTEOS film in water is shown in Fig.…”