Aerosol-assisted synthesis of hierarchical porous titanosilicate molecular sieve as catalysts for cyclohexene epoxidation

Evaporation‐Induced Self‐Assembly Method Route to TiO2−SiO2 Catalysts with Hierarchical Pores and Their Oximation of Ketones and Aldehydes

“…In addition, some tailed absorption peak centered between 270 and 300 nm can be obviously observed, which can be attributed to titanium species with higher coordination state, such as octahedral coordination, low polymerization titanium species formed locally due to water coordination [41] or small nano-sized TiO 2 particles undetected by XRD patterns. [18] No anatase or bulk TiO 2 particles for all the prepared samples can be formed owing to no obvious absorption peak centered above 400 nm, [42] which was consistent with XRD patterns.…”

“…have been applied for the materials preparation with hierarchical pores. [17][18][19][20] TiO 2 À SiO 2 catalysts with micro/mesoporous or flower-shaped core-shell structures can be successfully prepared for the epoxidation, where the epoxy yield can increase from 20 to 50 %. [21][22][23] However, the preparation process is complicated resulting in the poor repeatability for the catalyst acquisition with stable catalytic performance.…”

Hollow zeolite microspheres as a nest for enzymes: a new route to hybrid heterogeneous catalysts

“…The method is based on the aerosol-assisted [40][41][42] assembly of TS-1 nanocrystals to form hollow zeolite microspheres with a hierarchical porosity and high epoxidation activity in water-based media. Hierarchical zeolites [43][44][45][46][47][48][49][50] have already been identied as possible candidates for enzyme immobilization 51,52 but never exploited in chemo-enzymatic catalysis. The presented aerosol method allows preparing hierarchical hollow zeolite structures using an easy, continuous, and scalable aerosol process.…”

Synthesis of mesoporous silicate molecular sieves by the aerosol-assisted method for loading and release of drug

“…Aerosol-assisted synthesis is expected to solve these problems in traditional methods. The synthesis process is as follows: silicon source, mesoporous template agent, water and ethanol are mixed to form the solution, the aerosol spray is formed by an aerosol generator, and dried by a tube heating furnace [31][32][33][34][35][36]. The pore template agent forms micelles and self-assembles with the silicon species to form the mesoporous structure.…”