Temperature-dependent phase transformation of TiO2 nanoparticles synthesized by sol-gel method

Mo doped TiO2: impact on oxygen vacancies, anatase phase stability and photocatalytic activity

“…coatings [8,9]. The most commonly existing crystalline polymorphs of TiO 2 are anatase, rutile and brookite [10][11][12]. Anatase is accepted to be the more active phase of TiO 2 and is preferred by the ceramic industries to fabricate light active antimicrobial indoor building materials such as ceramics, glass, tiles and sanitary surfaces [13,14].…”

“…TiO 2 anatase is mainly fabricated at low calcination temperatures (∼500°C) to prevent the anatase to rutile phase transition (ART) [15][16][17], which produces the less photo-active rutile phase. The photo-activity of anatase arises from its appropriate band edge positions, electron affinity, ionisation potential, and the long lifetime of charge carriers [10,12,18]. Moreover, transient photo-conductance analysis has revealed that the electron-hole recombination phenomena in anatase (101) phase is much slower compared to rutile (110), which is credited in part to the indirect band gap of anatase [11,19].The unit cells of anatase and rutile phases are composed of TiO 6 octahedra with titanium atoms at the centre and oxygen atoms at the vertices [20].…”

Physico‐mechanical, thermal, and ultraviolet light barrier properties of collagen hydrolysate films from leather solid wastes incorporated with nano TiO2

“…TiO 2 NPs was synthesized room temperature via sol‐gel method. Gel preparation, drying, and calcination are three main steps of this method . Initially, 50 mL of 2‐isopropanol was added to the flask as the solvent of titanium (IV) isopropoxide.…”

“…Gel preparation, drying, and calcination are three main steps of this method. [43,44] Initially, 50 mL of 2-isopropanol was added to the flask as the solvent of titanium (IV) isopropoxide. Then, 4.56 mL of glacial acetic acid by dropping funnel with constant stirring in order to accelerate polymerization.…”

Effect of microwave power irradiation on TiO2 nano-structures and binder free paste screen printed dye sensitized solar cells

“…For the preparation of TiO 2 nanostructures, a variety of synthesis methods such as hydrothermal, solvothermal, sol-gel, direct oxidation, chemical vapor deposition, electro deposition, sonochemical, and the microwave method have been used [13][14][15][16][17][18][19][20]. The preferred nanostructure are one dimensional nanostructures such as nanorods, nanowires and nanotubes as they offer a unidirectional electrical path ways for photogenerated electrons through the cell.…”