A high-efficiency photocatalyst, flaky anatase@natural rutile composite using one-step microwave hydrothermal synthesis

Tuning the selectivity of visible light-driven hydroxylation of benzene to phenol by using Cu, Fe and V oxides supported on N-doped TiO2

“…38,39 Peaks at 409 and 431 nm can be assigned to emission originating from intra-band gap energy states related to oxygen vacancies or nitrogen sites, according to the relevant literature. [40][41][42] Notably, the signal at 409 nm is also consistent with band-toband emission of the TiO 2 rutile phase, 43 which is present in traces according to WAXD analysis. All of the mixed oxide catalytic systems show lower emission with respect to the N-TiO 2 sample, thus indicating lower charge recombination possibly due to interfacial electron transfer between the component oxides, resulting in improved spatial charge separation and longer lifetime of the photogenerated charges.…”

Ag Decoration and SnO2 Coupling Modified Anatase/Rutile Mixed Crystal TiO2 Composite Photocatalyst for Enhancement of Photocatalytic Degradation towards Tetracycline Hydrochloride

“…The XRD patterns of samples are shown in Figure 1 . In the pattern of pure TiO 2 , the peaks at 25.3°, 37.9° and 48.1° correspond to the (101), (004) and (200) crystal planes of anatase, and the peaks at 27.4°, 36.1° and 54.3° are indexed to the (110), (101) and (211) crystal planes of rutile, indicating that pure TiO 2 consists of anatase and rutile and shows mixed crystal structure [ 24 , 26 , 27 , 28 ]. The mass fractions of anatase and rutile are 23.8% and 76.2%, respectively.…”

“…In addition to coupling with other semiconductor materials, TiO 2 with different crystal structures to form mix crystal heterojunctions is also conducive to the transfer of photogenerated charges, showing higher photocatalytic activity than a single crystal structure [ 24 , 25 , 26 ]. Based on these advantages, anatase/rutile mixed crystal TiO 2 was prepared by the sol-gel method and modified by Ag decoration and SnO 2 coupling to fabricate Ag@SnO 2 /anatase/rutile composite photocatalyst in the present work.…”