Photocatalytic Activity of NaNbO₃ Thin Films

Abstract

NaNbO(3) thin films prepared by the sol-gel method had homogeneous microstructure with an average grain size of 15-25 nm and exhibited photoinduced hydrophilic conversion under UV irradiation. However, the films had little photocatalytic oxidation activity under UV irradiation. This is the first observation that NaNbO(3) undergoes photoinduced hydrophilicity under UV irradiation.

Preparation and photocatalytic activity of triangular pyramid NaNbO 3

“…NaNbO 3 has an orthorhombic symmetry at room temperature with lattice constants a o = 5.569 Å, b o = 5.505 Å, c o = 15.523 Å, and we also can calculate the pseudocubic lattice parameters of NaNbO 3 to a c = 3.881 Å, b c = 3.915 Å, c c = 3.915, and ␣ c = 90.67 • [7,8]. As a photocatalyst, it has the extensive potential applications in solar fuel production and organic pollutant removal [9][10][11][12][13][14][15][16]. Many methods were proposed to improve the activity, such as making solid solution and composites, preparing the nanostructured samples [12,17,18].…”

Electrospun tungsten trioxide nanofibers decorated with palladium oxide nanoparticles exhibiting enhanced photocatalytic activity

“…3,4 The semiconducting metal oxides such as TiO 2 , WO 3 , ZnO and Fe 2 O 3 have been explored as photocatalytic nanomaterials. 5,6 Among those metal oxides, much effort has been devoted to TiO 2 based photocatalysts due to its excellent photoactivity and high stability, 7,8 however, its wide bandgap (3.2 eV) limits its applicability as the catalytic activity can be activated by only UV light.…”

Fabrication of hydrophilic S/In2O3 core–shell nanocomposite for enhancement of photocatalytic performance under visible light irradiation

“…Now it has become a hot spot in many research fields all over the world [8,9]. However, the common photocatalysts (TiO 2 [10], ZnO [11], NaNbO 3 [12], etc. [13][14][15]) have such drawbacks as low quantum efficiency, rapid recombination of photogenerated carriers and narrow optical response, which greatly limit their applications in the treatment of organic pollutants [5][6][7].…”