Green and facile sol-gel synthesis of the mesoporous SiO₂-TiO₂ catalyst by four different activation modes.

ABSTRACT: The most environmentally friendly protocol for obtaining mesoporous SiO₂-TiO₂ catalysts has been sought. Water has been employed as a green solvent, the energy input has been minimized, and three further principles (1, 3, and 12) of Green Chemistry have been considered. Four different modes for promoting the reaction have been comparatively evaluated, namely near-infrared and microwave electromagnetic irradiations, ultrasound, and traditional mantle heating. Brunauer-Emmett-Teller (BET) analyses of the catalysts produced revealed that the non-conventional activation modes afforded both large surface areas (335-441 m² g^-1) and smaller crystal sizes (7.2-15.3 nm) than the mantle heating process. These modes also generated the catalysts in shorter r

SUBMITTER: Perez H 

PROVIDER: S-EPMC9057439 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature