TiO2 Processed by pressurized hot solvents as a novel photocatalyst for photocatalytic reduction of carbon dioxide

Photocatalytic Oxidation of Methyl Tert-Butyl Ether in Presence of Various Phase Compositions of TiO2

“…On the other hand, the presence of brookite phase beside anatase led to an increase of TOC removal. The increase in photocatalytic activity can be explained by formation of heterojunction between anatase and brookite phase, as was mentioned earlier [13,14]. TEM image confirmed clusters of very fine particles, which is the benefit of processing by pressurized hot fluids ( Figure 4c) [15].…”

Photocatalytic CO2 Reduction on TiO2‐Based Materials under Controlled Reaction Conditions: Systematic Insights from a Literature Study

“…used P25 and pure anatase TiO 2 from a sol‐gel auto‐ignited method suspended in an aqueous NaOH solution (0.2 mol L −1 ) and identified CH 3 OH, HCHO and CH 4 (in descending order of yields) as products for both materials. Reli et al . synthesized anatase‐brookite composites using a modified sol‐gel process including processing with pressurized hot solvents and compared them to P25 in aqueous NaOH solution (0.2 mol L −1 ) as the reduction medium.…”

“…They concluded that the combination of anatase with brookite has a better efficiency towards CH 4 production, whereas P25 produces more H 2 . This enhanced CH 4 formation was attributed to the better efficiency of brookite compared to rutile, the larger surface area of anatase/brookite composite and the photoinduced electron transfer from the CB of brookite to the CB of anatase …”

“…Xiong et al [29] used P25 and pure anatase TiO 2 from as ol-gel auto-ignited methods uspended in an aqueous NaOH solution (0.2 mol L À1 )a nd identifiedC H 3 OH, HCHO and CH 4 (in descending order of yields) as products for both materials. Reli et al [30] synthesized anatase-brookite compositesu sing am odified sol-gel process including processing with pressurized hot solvents and compared them to P25 in aqueous NaOH solution (0.2 mol L À1 )a st he reduction medium. They concluded that the combination of anatase with brookite has ab etter efficiency towards CH 4 production,w hereas P25 produces more H 2 .T his enhanced CH 4 formation was attributed to the better efficiency of brookite compared to rutile, the larger surfacearea of anatase/brookite composite and the photoinduced electron transfer from the CB of brookite to the CB of anatase.…”

“…They concluded that the combination of anatase with brookite has ab etter efficiency towards CH 4 production,w hereas P25 produces more H 2 .T his enhanced CH 4 formation was attributed to the better efficiency of brookite compared to rutile, the larger surfacearea of anatase/brookite composite and the photoinduced electron transfer from the CB of brookite to the CB of anatase. [30] As in the case of gas-solid reactions, structural order seems advantageous. For instance, in reference [31],a natase TiO 2 nanoparticles synthesized in an autoclave were comparedt o TiO 2 nanotubes synthesized from P25.…”