Improved structural stability of titanium-doped β-Bi2O3 during visible-light-activated photocatalytic processes

Fabrication and photocatalytic property of α-Bi2O3 nanoparticles by femtosecond laser ablation in liquid

“…It is known that, if the grain sizes of photocatalyst are reduced from micro-size to nano-size, the catalytic activities can be dramatically increased, which is owing to the larger surface-to-volume ratio and more defects of nano-size materials [7][8][9]. Generally, anionic dye of indigo carmine is readily adsorbed by oxides due to the plenty of positively charged defects on their surfaces [31]. As a result, the indigo carmine solution became pale and the ␣-Bi 2 O 3 nanoparticles turned light green when the photocatalytic system was kept in the dark for 60 min.…”

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

“…6), indicating that the as-prepared monoclinic ␣-Bi 2 O 3 can utilize visible light effectively. Additionally, the intrinsic polarizabilities induced by Bi 6s2 lone electron pairs in the monoclinic ␣-Bi 2 O 3 are favorable for the separation of photogenerated electron-hole pairs and the transfer of these charge carriers, as well as their wide delocalized bands is beneficial to the diffusion of photogenerated charge carriers [41].…”

Generation and photocatalytic activities of Bi@Bi2O3 microspheres

“…The efficiency of photodegradation by Bi 2 O 3 catalysts needs to be further improved. It has been demonstrated that coupled semiconductor or doped semiconductor [15,[18][19][20][21][22][23][24] photocatalysts can have increased photocatalytic efficiency because of the increased charge separation. Liu and co-workers reported that coupling CeO 2 with Bi 2 O 3 in a nanocomposite could significantly enhance the catalytic activity for the degradation of RhB, compared with pure Bi 2 O 3 or CeO 2 powders.…”