TiO2 microspheres with cross-linked cyclodextrin coating exhibit improved stability and sustained photocatalytic degradation of bisphenol A in secondary effluent

Hierarchical bismuth vanadate/reduced graphene oxide composite photocatalyst for hydrogen evolution and bisphenol A degradation

“…Environmental Protection Agency, 29 and hence simple and energy efficient technologies for its removal from aquatic systems are highly desirable. 30,31 Herein, the synthesis of BiVO4 hierarchical nanostructures (h-BiVO4) comprising plates decorated with nanoparticles, and their integration with 2D reduced graphene oxide (RGO) by a simple hydrothermal process, is described. The h-BiVO4/RGO photocatalyst is active for the degradation of BPA to monocyclic quinones and maleic acid, and the production of H2 from water, under visible light irradiation.…”

Photocatalytic Degradation of Bisphenol A by TiO2 Mineralized Using a Polystyrene‐Peptide Template

“…For BPA degradation, the organic coating was applied to TiO 2 (CDP−TiO 2 ) to increase the utilization efficiency of photo‐generated reactive oxygen species. CDP−TiO 2 maintained the BPA removal efficiency of more than 71 % even after four 3‐h cycles, but P25−TiO 2 removed only 6.2 % of BPA [46] . The Cu, N‐co‐doped titanate nanotube was constructed by hydrothermal method and showed 1.5 times higher BPA degradation than P25−TiO 2 under visible light irradiation [47] .…”

“…CDPÀ TiO 2 maintained the BPA removal efficiency of more than 71 % even after four 3-h cycles, but P25À TiO 2 removed only 6.2 % of BPA. [46] The Cu, N-co-doped titanate nanotube was constructed by hydrothermal method and showed 1.5 times higher BPA degradation than P25À TiO 2 under visible light irradiation. [47] TiO 2 -wood charcoal composites photocatalysts (TiO 2 -WC) prepared by the dip-sol-gel method improved BPA adsorption capacity and BPA degradation activity was 1.85 times higher than that of P25À TiO 2 .…”

Zinc-doped hydroxyapatite: an UVA light photocatalyst for the removal of bisphenol A

“…The photocatalytic activity of the samples was evaluated in a batch system inside a reactor of positive irradiation geometry according to the location of the light source, 34 with 6 UVA lamps (4 W, F4T5/BLB) irradiating light at 350 nm as previously described. 35 The light intensity was measured by actinometry, according to the procedure reported by Bolton et al 36 The photon flux was 3.83 × 10 −6 Einstein per Ls, and the power was 0.05 W. A dispersion of each material and a BPA solution of 20 mg L −1 was prepared with a mass/volume ratio of 0.5 g L −1 in a quartz beaker and stirred at constant speed during the irradiation time. The reactor had a fan to heat dissipation, and the temperature reached 38 °C after 2 h. The reactive species participating in the BPA photocatalysis were studied by radical trapping experiments.…”