Magnetic Ti-containing phenylene-based mesoporous organosilica: A powerful nanocatalyst with high recoverability
作者： Masoumeh Shaker , Dawood Elhamifar
DOI: 10.1016/J.COLSURFA.2020.125603
关键词:
摘要: Abstract In this study, preparation, characterization and catalytic application of a novel core-shell structured magnetic Ti-loaded phenylene-based nanoporous organosilica (Mag@Ti-NOS) nanocomposite are developed. The Mag@Ti-NOS was synthesized via cetyltrimethylammonium bromide (CTAB) directed co-condensation tetramethoxysilane (TMOS), tetrabutyl orthotitanate (TBOT) 1,4-bis(triethoxysilyl)benzene (BTEB) over Mag@SiO2 under alkaline conditions. This characterized by using FT-IR, EDX, PXRD, VSM, SEM, TEM, XPS, ICP TGA techniques. These analyses showed structure with high chemical thermal stability for the designed material. employed as an effective, powerful recyclable catalyst in synthesis tetrahydrobenzo[b]pyrans H2O at 50 °C ultrasonic recovered reused several times without significant decrease efficiency stability. analyzed PXRD SEM to study its during reaction process.
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