TiO2 mesocrystals composited with gold nanorods for highly efficient visible-NIR-photocatalytic hydrogen production

Highly Efficient Degradation of Tobacco Specific N‐Nitrosamines by TiO2 Mesocrystals with Robust and Tailored Microporous Structure

“…Mesocrystals also permit the advantages of single crystals as well as large surface area, making them more promising in the applications of catalysis, sensing and energy storage and conversion . In our and other group's previous work, TiO 2 mesocrystals with different phase and morphology were synthesized, which exhibited superior performance in energy storage and conversion, sensing and photocatalysis . However, TiO 2 mesocrystals with tunable microporous structure have not been reported, which could be a robust structure allowing promising application in catalysis.…”

“…[3][4][5][6][7][8] In our and other group's previous work, TiO 2 mesocrystals with different phase and morphology were synthesized, which exhibited superior performance in energy storage and conversion, sensing and photocatalysis. [8][9][10][11][12][13][14][15][16][17][18] However, TiO 2 mesocrystals with tunable microporous structure have not been reported, which could be a robust structure allowing promising application in catalysis.…”

Facet Effects of Ag3PO4 on Charge‐Carrier Dynamics: Trade‐Off Between Photocatalytic Activity and Charge‐Carrier Lifetime

“…To investigate the underlying mechanisms of the facet and the structural effects on photocatalytic activities, single‐particle photoluminescence (PL) microscopy was used to monitor the PL properties of Ag 3 PO 4 . This method can clearly visualize the local active site on the single particle and hidden photocatalytic mechanisms, which are not accessible through ensemble‐averaged photocatalytic experiments . Figures a–c show the representative PL lifetime images of Ag 3 PO 4 mixed facets, tetrahedron, and cube, and additional results can be found in Figures S6 and S7.…”

“…local active site on the single particle and hidden photocatalytic mechanisms, which are not accessible through ensembleaveragedp hotocatalytic experiments. [11] Figures 3a-c show the representative PL lifetime images of Ag 3 PO 4 mixed facets, tetrahedron, and cube, and additional results can be found in Figures S6 and S7. Interestingly, there were common characteristics between the lifetimea nd energy of Ag 3 PO 4 single-particle PL;a st he PL energy increases (i.e.,b lueshifted emission spectra), the PL lifetime becomes shorter.A ss hown in Figure 4, the maximums of the PL spectra with short (t < 0.2 ns) and long lifetime( 2.5 ns < t < 5.0 ns) were approximately 460 and 750 nm, respectively.C onsidering the band-gap energy of Ag 3 PO 4 (approximately 2.6 eV,T able S1), the former represents band-edge emission, andt he latter represents NIR emission, which is presumably induced by the relaxation of charge-trapping states.…”

Oxygen‐Deficient Dumbbell‐Shaped Anatase TiO2−x Mesocrystals with Nearly 100 % Exposed {101} Facets: Synthesis, Growth Mechanism, and Photocatalytic Performance

“…[34][35][36][37][38][39] These unique ordered superstructures of TiO 2 have been demonstrated to exhibit effective conduction pathways and considerably long-life chargesi nt he bulk, andc an display noticeably enhanced photoconductivity and photoreactivity. [38,[40][41][42][43] It is noteworthy that anatase TiO 2 mesocrystals with ap latelet-like shape were first synthesized from NH 4 TiOF 3 mesocrystals by at opotactic transformation process. [34] Since then, rapidlyi ncreasing attention has been directed toward developing anatase mesocrystals with controlled morphologies as well as to investigating their photocatalytic properties.…”