Mesoporous silica nanoparticles with controllable morphology prepared from oil-in-water emulsions

TiO2 Nanoparticles Supported on Hierarchical Meso/Macroporous SiO2 Spheres for Photocatalytic Applications

“…Due to their buffer capacity, weak bases are preferred. For instance, basic amino acids, such as arginine or lysine, keep the reaction under weakly basic conditions leading to spherical particles with dendritic pores [18,45]. The same particles can be obtained with urea, whose thermal decomposition above 70°C maintains the solution pH between 7 and 9.5, depending on the urea concentration [46].…”

“…Hierarchically porous materials have the advantage that micro-and mesopores provide the size and shape selectivity for guest molecules, enhancing the host-guest interactions, whereas macropores favor the diffusion and accessibility of guest molecules [14]. The need for tailored porous materials for different applications has motivated the design of hierarchical meso/macroporous silica by different synthetic approaches [15]; most of them are based on the sol-gel chemistry at liquid interfaces using arrangements of amphiphilic molecules as templates [16][17][18]. Interesting examples of these materials are the so-called dendritic fibrous nanosilicas (DFNS) [19][20][21], such as KCC-1 spheres (KAUST Catalysis Center-1) that are potentially useful for solving problems in catalysis, photocatalysis, DNA adsorption, CO 2 capture, optical devices, and drug delivery [22].…”

Twisted and tubular silica structures by anionic surfactant fibers encapsulation

“…Their large surface area and pore volume have found numerous applications in separation and adsorption techniques, they can play a role as a support for catalysis, costly biomolecules and drug delivery systems, moreover they found application in sensor industry, optoelectronics and recently in metamaterials study and fabrications [1][2][3][4][5][6][7][8][9][10][11][12]. Particularly silica as an inert and cost-effective material was in the focus of interest.…”

Comprehensive understanding of the synthesis and formation mechanism of dendritic mesoporous silica nanospheres

“…. Copyright 2009 Elsevier Ltd. And TEM (d) and SEM (e) images and proposed formation mechanism (f) of mesoporous silica nanoparticles prepared by Holmberg without styrene 60. Reproduced with permission from ref 60…”