The synthesis, characterization and photocatalytic activity of V(V), Pb(II), Ag(I) and Co(II)-doped Bi2O3

Monoclinic α-Bi2O3 photocatalyst for efficient removal of gaseous NO and HCHO under visible light irradiation

“…Bismuth oxide (Bi 2 O 3 ) with four main crystallographic polymorphs denoted by ␣-, ␤-, ␥-, and ␦-Bi 2 O 3 is a p-type semiconductors. Bi 2 O 3 has been widely used in a variety of areas, such as sensor technology, optical coatings and electrochromic materials due to its high refractive index, dielectric permittivity, marked photoconductivity, as well as photoluminescence (PL) [26][27][28][29][30][31][32][33][34][35][36]. Furthermore, it has attracted extensively interests for water decomposition and organic photocatalytic degradation under visible light illumination due to its narrow band gap about 2.8 eV [28][29][30][31] .…”

“…Bi 2 O 3 has been widely used in a variety of areas, such as sensor technology, optical coatings and electrochromic materials due to its high refractive index, dielectric permittivity, marked photoconductivity, as well as photoluminescence (PL) [26][27][28][29][30][31][32][33][34][35][36]. Furthermore, it has attracted extensively interests for water decomposition and organic photocatalytic degradation under visible light illumination due to its narrow band gap about 2.8 eV [28][29][30][31] . Many methods have been developed to prepare different Bi 2 O 3 structures, such as hierarchical nanostructures, nanowires, sub-micrometer rods, rippled Bi 2 O 3 nanobelts, mesoporous films, and so on [26][27][28][29]33,36].…”

Bismuth‐Containing SBA‐15 Mesoporous Silica Catalysts for Solvent‐Free Liquid‐Phase Oxidation of Cyclohexane by Molecular Oxygen

“…In Bi 2 O 3 , where there is full connectivity of BiÀOÀBi linkages, the LMCT shifts to lower wavelength (ca. 400 nm) [16]. These results indicate that there is no bismuth oxide in the Bi/SBA-15 samples and that Bi-atoms enter the framework of Bi/ SBA-15.…”

Study on the photocatalytic activity of K2La2Ti3O10 doped with vanadium (V)

“…More significantly, K 2 La 2 Ti 3 O 10 has a lot of derivatives by the replacement of elements of the layer with other elements to show some photo response under visible light irradiation. Inspite of the fact that the transition metal vanadium (V) [22][23][24] has the possibility to change the energy gap of semiconductor and make it respond to visible light, we have not found any report on K 2 La 2 Ti 3 O 10 photocatalyst doped with vanadium (V) under visible light irradiation.…”