Band structure and photocatalytic properties of perovskite-type compound Ca2NiWO6 for water splitting

Synthesis of nanometer-size Bi3TaO7 and its visible-light photocatalytic activity for the degradation of a 4BS dye

“…7. It is well known that PL can evaluate the photocatalytic activity of semiconductor samples [30][31][32][33][34].…”

Crystal growth and structural investigation of A2BReO6 (A=Sr, Ba; B=Li, Na)

“…Many different synthetic routes have been used for the preparation of perovskite oxides, including the traditional ceramic method [6][7][8], chimie douce [9], combustion methods [10], and low-temperature methods [11], which include hydrothermal synthesis [12], sol gel method [13], metathesis [14], and flux growth [15]. The latter approach has been used extensively by our research group to grow single crystals of double perovskites containing late transition metals, such as Ln 2 NaRuO 6 (Ln ¼ La, Pr, Nd) [16], Ln 2 LiIrO 6 (Ln ¼ La, Pr, Nd, Sm, Eu) [17], Ba 2 MOsO 6 (M ¼ Li, Na) [18], Sr 2 NiOsO 6 [19], Ca 2 NiOsO 6 [19], Ln 2 NaOsO 6 (Ln ¼ La, Pr, Nd) [20], and Ln 2 LiOsO 6 (Ln ¼ La, Pr, Nd, Sm) [21] from molten hydroxide fluxes.…”

Crystal growth of La2NaTaO6: A new monoclinically distorted double perovskite

“…When two different atoms, B and B 0 , are placed on the B sublattice with 1:1 ordering, the unit cell doubles to yield the A 2 BB 0 O 6 double perovskite structure. Compounds that adopt such structure possess various properties, such as proton conductivity [26], large dielectric constants [15,27], long-range magnetic order [2,17,18,20,[28][29][30], ionic conductivity [14] and photocatalytic ability [3,4,6,11,13].…”

“…Complex tantalum oxides have been of interest for their photocatalytic activity [1][2][3][4][5][6][7][8][9][10][11][12][13], ferroelectric behavior [2,14] and their dielectric properties [15]. Advances in these areas have provided the driving force behind the search for new ternary and quaternary compounds via traditional synthetic routes.…”

“…Since the first report on the photocatalytic activity of TiO 2 by Honda and Fujishima [16] many researchers have investigated early transition metal oxides, including many tantalates [1,3,4,6,[8][9][10][11][12][13], for their photocatalytic properties. Furthermore, in such oxides, it is believed that the presence of corner-sharing octahedral units, such as TiO 6 , NbO 6 , and TaO 6 [8,9] contribute to the photocatalytic behavior.…”