Effect of surface hydrophobicity of TiO2-pillared clay on adsorption and photocatalysis of gaseous molecules in air

Synthesis and photocatalytic performances of the TiO2 pillared montmorillonite

“…9(A) and (B). All isotherms, except that of Na-Mt and TiP2-Mt-900, seem to be of the characteristic type IV of solids including both micro and mesopores (BDDT classification) [34,35]. Moreover, the desorption branch of all prepared samples shows an inflection "knee" at about 0.45-0.5P/P 0 , which has been observed for many different types of layered materials when using nitrogen as the adsorbent gas (nitrogen boils at P/P 0 0.42) [36].…”

Adsorption and degradation of model volatile organic compounds by a combined titania–montmorillonite–silica photocatalyst

“…In addition, the adsorption and condensation properties of the supports greatly depend on their surface hydrophilic-hydrophobic properties [22]. TiO 2 pil-lared clay prefers to enrich and photocatalytically degrade organics with high hydrophobicity in water and air due to its hydrophobic interlayer surface [23,24]. While the surface of SiO 2 exhibits hydrophilic nature originated from the surface hydroxyl groups [25].…”

Study on the preparation and characterization of a titanium-pillared clay-supported CrCe catalyst and its application to the degradation of a low concentration of chlorobenzene

“…Ti-PILC as introduced in this study needs to have the following characteristics: (1) a large specific surface area and uniform pore size; (2) interlayer titanium dioxide primarily in the form of pillars bonded to the tetrahedral sheets in the clay and (3) a strong solid acidity. There are potential broad applications of Ti-PILC as a selective solid catalyst and an adsorbent in the petrochemical industry, fine chemicals industry, environmental protection field and other fields (Long et al, 2001;Ooka et al, 2004;Jagtap and Ramaswamy, 2006). For example, Ti-PILC has shown excellent performance in the selective catalytic reduction of NO x , which requires a relatively low temperature (Long et al, 2001).…”