The above hypothesis is rarely investigated in niobates
, which is one kind of photocatalyst for water splitting and organic degradation, such as NaNb[O.sub.3], Sr[Nb.sub.2][O.sub.6], and [Cs.sub.2][Nb.sub.4][O.sub.11] [8-15].
Pechini, "Method of preparing lead and alkaline titanates and niobates
and coating method using the same to form a capacitor," US Patent 3330697, 1967.
Synthesis and dielectric properties of modified solid solutions of sodium-potassium niobates
. Fizika Tverdogo Tela, 2012, 54, 934-936 (in Russian, English translation in Physics of the Solid State, 2012, 54, 994-996).
Pechini, Method of preparing lead and alkaline earth titanates and niobates
and coating method using the same to form a capacitor, US Patent, 1967.
These barium niobates
may be used to function as sensors, actuators, detectors, filters, resonators, and so forth through special layout arrangements.
Pullar, "The synthesis, properties, and applications of columbite niobates
([M.sup.2+][Nb.sub.2][O.sub.6]): a critical review," Journal of the American Ceramic Society, vol.
Simply stated, layered oxides are any oxygen-containing layered material such as, cuprates, titanates, phosphonates, niobates
, or silicates.
These methods can be also extended to other layered oxide systems, such as layered niobates
and titanates, (H|Ca.sub.2~|Nb.sub.3~|O.sub.20~, |Na.sub.2~|Ti.sub.3~|O.sub.7~, |Na.sub.2~|Ti.sub.4~|O.sub.9~ and other conductive polymers such as polyaniline and polypyrrole.
Nam, "Neutron diffraction and FT-Raman study of ion-exchangeable layered titanates and niobates
," Chemistry of Materials, vol.
have gained scientific and technological interest due to their properties as a piezoelectric, nontoxic, pyroelectric, photocatalytic material among others, and their wide range of possible applications [1, 2].