Photocatalytic degradation of methylene blue on nitrogen doped layered perovskites, CsM2Nb3O10 (M=Ba and Sr)

Perovskite-structured CaTiO3 coupled with g-C3N4 as a heterojunction photocatalyst for organic pollutant degradation

“…The enhanced photocatalytic activity has been attributed to the exact positions of energy band offsets of the coupled materials, which facilitates the photogenerated charge transfer and effectively suppresses their recombination. Moreover, perovskite materials are also potential candidates for environmental remediation applications and are well-explored in the literature [ 32 – 33 ]. Xian and coworkers have studied the photocatalytic degradation of MO under simulated solar light irradiation in BaTiO 3 –g-C 3 N 4 composites with an efficient charge separation of photogenerated charge carriers at the interfaces [ 30 ].…”

Significant Role of Perovskite Materials for Degradation of Organic Pollutants

“…Similarly, another DJ phase material such means Dion-Jacobsen (DJ) as CsM 2 Nb 3 O 10 (M = Ba and Sr) and also doped with nitrogen used for photocatalysts for degradation of methylene blue [155]. Zhu et al prepared tantalum-based {111}-layered type of perovskite material such as Ba 5 Ta 4 O 15 from hydrothermal method, which has been frequently employed for the controlled shape like hexagonal structure with nanosheets and used as photocatalyst for photodegradation of rhodamine B and gaseous formaldehyde [156]. Pola et al synthesized a layered-type perovskite material constructed on A I A II Ti 2 O 6 (A I = Na or Ag or Cu and A II = La) structure for the photodegradation of several organic pollutants and industrial wastewater under visible-light-driven [157][158][159][160][161][162].…”

UVA- and visible-light-driven photocatalytic activity of three-layer perovskite Dion-Jacobson phase CsBa2M3O10 (M=Ta, Nb) and oxynitride crystals in the removal of caffeine from model wastewater

“…Among other photocatalysts, ZnO [16,25] and perovskites have also been widely applied. In addition to water splitting [26,27] and solar cells [27,28], perovskites were also applied successfully in wastewater treatment process for the removal of organic pollutants [27,[29][30][31]. The main advantages of perovskites are their electronic structure and broad spectrum of solar light absorption from the visible to near-infrared region [27].…”

“…The main advantages of perovskites are their electronic structure and broad spectrum of solar light absorption from the visible to near-infrared region [27]. Doping of perovskites, especially by nitrogen, creates oxygen vacancies that act as traps for photogenerated electrons, leading to a reduction in recombination of photogenerated electron-hole pairs [30].…”