Mesoporous titania: From synthesis to application

The Influence of Acids on Tuning the Pore Size of Mesoporous TiO2 Templated by Non‐Ionic Block Copolymers

“…This shows that the crystal phase of the calcined samples is not influenced by the variation in pH in the acidic range examined in this work. Besides, the pure anatase phase suggests negligible effect of Cl -, NO 3 -and ClO 4 -anions on the TiO 2 phase formation even though these species are known to stabilize rutile and brookite. [16][17][18] The SAXRD of TiO 2 and TiO 2 HA1M ( Figure 1B) shows a broad intense peak centered at 1.5°.…”

“…[2] Therefore, the development of a facile route to obtain mesoporous TiO 2 with tailored pore size as easy as silica is required for its future applicability. [3] Similar to the synthesis of mesoporous silica, the most applied pathway for the synthesis of mesoporous TiO 2 is the soft-template approach. [3] This method usually undergoes a coassembly process of the titanium precursor with the surfactant template.…”

“…[3] Similar to the synthesis of mesoporous silica, the most applied pathway for the synthesis of mesoporous TiO 2 is the soft-template approach. [3] This method usually undergoes a coassembly process of the titanium precursor with the surfactant template. Non-ionic block copolymer templates have been increasingly used for this purpose as they lead to more robust structure, larger pores, easier control over the wall thickness and higher reproducibility than the ionic surfactants.…”

“…[4][5][6][7][8] It is widely accepted that the pore size of mesoporous TiO 2 depends on the hydrophobic volume of the surfactant templates. [3,9] The strong effect of inorganic anions on the structure of porous materials template by non-ionic block copolymers has been already investigated. [10][11][12][13] However, the attention has been limited to the impact of such interaction on the order of the mesostructure of single crystal and polycrystalline silica materials.…”

Thermally induced anchoring of a zinc-carboxyphenylporphyrin on rutile TiO2 (110)

“…Both are crucial for molecular electronics, catalysis, and photovoltaics. [4][5][6][7][8][9] The properties of the molecule and their interaction with the surface can be tuned with functional chemical groups. Especially important are the so-called anchoring groups that show a strong adsorption to the substrate and are used for the immobilization of molecules on surfaces, which is essential for stable interfaces.…”