Improved photocatalytic activity of TiO2 modified with unique O–Zn–Cl surface species

Significant effects of mixed cations on the morphology and photochemical activities of alkali–metal-antimony (Na,K)Sb3O7

“…It has been reported that the luminescence lifetime of TiO 2 is usually within a few nanoseconds. [39][40][41] In contrast, (Na 1−x K x ) Sb 3 O 7 (x = 0, 0.1, 0.2, 0.3) has an absolute long excited state lifetime at the microsecond scale (Table 2). This indicates that the photo-induced hole/electron recombination efficiency in (Na 1−x K x )Sb 3 O 7 (x = 0, 0.1, 0.2, 0.3) is fully delayed, resulting in greatly improved photocatalytic efficiency.…”

Photocatalytic Degradation of Textile dye Orange-122 Via Electrospray Mass Spectrometry

“…However, it was possible to observe that the position of the peaks in Figure 7 remains unchanged, as do the lattice parameters and cell volume (Table 5) when compared with TiO2. Thus, it can be concluded that the Zn 2+ ions are not doped in the interstices of the TiO2 lattice, possibly because they are highly dispersed in the material [17]. Point of zero charge Table 6.…”

Síntese e caracterização de catalisadores Zn/TiO2 pelo método de impregnação para aplicação em fotodegradação de corantes têxteis

“…catalisadores apresentaram picos relacionados à presença de fase cristalina de TiO2 na forma rutila, não evidenciando outras fases cristalinas, como anatase e brookita. Foi possível observar também pela figura, que as posições dos picos permaneceram inalteradas, mesmo com o acréscimo na carga metálica de zinco, essa semelhança entre os picos pode ser explicado caso os íons de Zn 2+ não estejam dopados na rede de TiO2, possivelmente por estarem altamente dispersos no material (YAN et al, 2016).…”