Synthesis and crystal structure of a novel layered barium antimonate Ba2Sb7O13(OH) with mixed-valence antimony

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

“…The references have reported the band electronic structures of antimonite oxides. For example, Geng et al 23 have calculated the band electronic structures of Ba 2 Sb 7 O 13 (OH) using density functional theory (DFT) calculations. The results show that the conduction band (CB) electronic components are mainly unoccupied by Sb-5p states, while the valence band (VB) is ascribed to O-2p states.…”

“…20,21 Sb doping in TiO 2 lattices can show mixed valences of Sb 3+ and Sb 5+ , 21,22 thus delaying the recombination of photo-generated charges. 21 Although in the past years, several studies have reported antimonate oxides with both +3 and +5 valence states, such as Ba 2 Sb 7 O 13 (OH), 23 Sb 2 O 4 , 24 (Sb 1−x Pb x ) 2 (Mn 1−y Sb y )O 4 , 25 NaSb 3 O 7 , 26 LaSb 5 O 12 , 27 Sr 1.36 Sb 2 O 6 , 12 etc., antimonate oxides coexisting with Sb 5+ and Sb 3+ in the same crystal structure and their applications are still worth studying.…”