BiOI/BiVO4 p⿿n heterojunction with enhanced photocatalytic activity under visible-light irradiation

Hydrothermal synthesis of BiOBr and BiOBr/CNT composites, their photocatalytic activity and the importance of early Bi6O6(OH)3(NO3)3·1.5H2O formation

“…Several classes of visible light photocatalyst are being investigated and modified [17,30,[33][34][35][36][37], but bismuth oxyhalides, (BiOX, X = Cl, Br, I), due to their unique layered structure [38,39], suitable band gap values, and stability [40,41] has shown promising visible light response [28,42]. They have relative stability under UV/visible light irradiation, show visible light active response and superior performance compared to Evonik Aeroxide P25 (titania) under UV irradiation [31,43].…”

Fabrication of Co3+ and B co-doping BiVO4 with improved photocatalytic performance for organic degradation

“…All the as-prepared samples exhibited typical peaks of monoclinic BiVO4 (JCPDS cards No. 75-1866) [2,5]. Although some studies in the literature have reported that Co(NO3)2 can be transformed into Co3O4 during the calcination process [11], no Co3O4 peaks were found in XRD analysis, which might be attributed to the low Co content.…”

“…As one of the non-titania visible-light-driven photocatalysts, BiVO4 has recently attracted considerable attention, as it is commonly used as a photocatalyst in water splitting and oxidative decomposition of organic pollutants under visible-light irradiation [1][2][3][4][5]. It has been found that the photocatalytic activity of BiVO4 is determined by its crystal phase.…”

Semicondutores Heteroestruturados: Uma Abordagem Sobre Os Principais Desafios Para a Obtenção E Aplicação Em Processos Fotoquímicos Ambientais E Energéticos

“…Entretanto, é preciso ressaltar que as respostas das bactérias ao tratamento fotocatalítico em amostras reais de água diferem consideravelmente daquelas em amostras de água em testes laboratoriais. 114 Acredita-se que tratamentos preliminares podem ser necessários, pois a presença de íons inorgânicos dissolvidos em sólidos suspensos e compostos orgânicos (principalmente substâncias húmicas) tem influência na eficiência do tratamento. 107 Assim, para viabilizar essa tecnologia é fundamental a busca constante por melhores fotocalisadores, visando principalmente um melhor aproveitamento da luz solar.…”