Synthesis of mixed phase anatase-TiO2(B) by a simple wet chemical method

Synthesis-Dependent Oxidation State of Platinum on TiO2 and Their Influences on the Solar Simulated Photocatalytic Hydrogen Production from Water

“…We utilized Raman spectroscopy as a more sensitive technique to confirm the presence of these phases in bare TiO 2 and Pt–TiO 2 composite materials as shown in Figure A. The bare TiO 2 shows bands at 141 cm –1 (E g ), 193 cm –1 (E g ), 393 cm –1 (B 1g ), 513 cm –1 (A 1g ), 519 cm –1 (B 1g ), and 636 cm –1 (E g ) attributed to the anatase phase. ,, After the formation of Pt–TiO 2 , all of the Pt–TiO 2 composites show Raman features of anatase phase TiO 2 only, and this supports the XRD results. The absence of peaks due to Pt species may be due to their very small size and high dispersion in the composites.…”

“…Photocatalytic hydrogen evolution reactions were carried out in a quartz reactor as described previously by us. ,, Typically, a known amount of the photocatalyst was suspended in a solution of H 2 O (1 g/L) and methanol (molar ratio of [H 2 O]/[CH 3 OH] = 8). The suspension was degassed for 30 min with high-purity argon prior to irradiation.…”

Synthesis and characterization of mixed phase anatase TiO2 and sodium-doped TiO2(B) thin films by low pressure chemical vapour deposition (LPCVD)

“…A number of research reports have indicated improved efficiencies of mixed-phase anatase and TiO 2 (B) over single phase material (either anatase or TiO 2 (B)) for the case of a number of photocatalyst reactions including: methyl orange degradation, 17 sulforhodamine B degradation, 16 methylene blue degradation, 44 active yellow XRG dye degradation, 45 nitrate reduction 15 and the water splitting reaction. 46 As far as we are aware, there have been no reports of the application of mixed-phase materials in self-cleaning glass, however such materials could in principle lead to improved photocatalytic efficiencies. Furthermore, TiO 2 (B) nanocrystalline thin films have been fabricated using spin-dip coating onto conductive glass substrates for use as a replacement for graphite anodes in lithium ion batteries.…”

Titanium Dioxide-Based Nanomaterials for Photocatalytic Fuel Generations

“…Besides the anatase–rutile phase junction structure, many researchers found that the interface between TiO 2 (B) and anatase could also facilitate the separation of photogenerated charges and improve the photocatalytic activity. − Lin and co-workers synthesized a bicrystalline structure consisting of TiO 2 (B) nanotubes and anatase nanoparticles, which exhibited a much higher H 2 production activity as compared to P25. , The authors indicated that the close contact between TiO 2 (B) and anatase is beneficial for the improvement of the photocatalytic activity due to efficient charge separation. Li et al synthesized an anatase/TiO 2 (B) core–shell nanofiber and found that this catalyst performed better than either the individual anatase or the TiO 2 (B) .…”