Efficient degradation of atrazine by BiOBr/UiO-66 composite photocatalyst under visible light irradiation: Environmental factors, mechanisms and degradation pathways

Complete removal of phenolic contaminants from bismuth-modified TiO2 single-crystal photocatalysts

“…is used as phenol solution, the degradation rate of phenol only decreases by ~1.5%. Similar results (~1.4%) are obtained when using tap water (Cl -, SO4 2-, Ca 2+ , K + , Mg 2+ , Na + , organic substances including chlorinated disinfection byproducts) as the phenol solution [34]. Even when using river water (natural organic matters, bacteria, mineral substance, etc.)…”

“…(4) Therefore, h + will be consumed by HCO3  and SO4 2-during the pollutant degradation process. As such, the as-synthesized Bi-SCTiO2 still exhibits a stronger resistance to HCO3  or SO4 2  than previous works [34,35], indicating significant inorganic ions resistance.…”

“…The effect of pH on the degradation of phenol was investigated because changes in pH can affect the charges of Bi-SCTiO2 and pollutants [34,35], leading to dissimilar degradation rates of phenol. Figure 4(a) indicates that the adsorption capacity remains unchanged whether under acidic or basic conditions, i.e.…”

“…It has been proven that the addition of inorganic ions has a negative effect on the photocatalytic performance of TiO2 for the removal of pollutants [34,35]. Under the presence of inorganic cations (e.g., CaCl2, NaCl, or KCl salts), the almost complete removal (> 98%) of phenol was still achieved over Bi-SCTiO2 after 120 min under simulated sunlight irradiation, suggesting that the common inorganic cations have no evident impact on the degradation of phenol (Fig.…”

Highly efficient heterogeneous photo-Fenton BiOCl/MIL-100(Fe) nanoscaled hybrid catalysts prepared by green one-step coprecipitation for degradation of organic contaminants

“…For example, in one study, BiOBr/NH 2 -MIL-125(Ti) composites and BiOBr/UiO-66 were prepared to degrade RhB and atrazine, respectively, under visible light. 32,33 In another study, BiOBr/MIL-53(Fe) hybrid photocatalysts prepared via coprecipitation were used to decompose rhodamine B (RhB) and carbamazepine. All the hybrids exhibited better catalytic performance than the pristine BiOBr.…”