access icon free Facile precipitation synthesis of extraordinary visible-light-driven BiOXs photocatalyst

Bismuth halide oxide with three halogen elements (P-BiOXs) catalyst was prepared by a facile precipitation method at room temperature only for 30 min. Several measurement technologies were employed to characterise the structures and morphologies of the obtained samples. Coloured Rhodamine B (RhB), methyl orange (MO), methylene blue (MB) and colourless bisphenol A (BPA) were selected to evaluate the photocatalytic activity of the samples. The experimental results showed the P-BiOXs thin nanoplates exhibited the most excellent photocatalytic activity among the prepared samples for the degradation of MO under visible light illumination. More importantly, the catalyst P-BiOXs could effectively degradate RhB, MB and BPA. The P-BiOXs catalyst displayed good photocatalytic stability by the recycling tests. The highly efficient visible light catalytic properties of P-BiOXs could be due to the high specific surface area, enhanced light-harvesting ability, the suitable bandgap energy and the lower recombination rate of the photogenerated electrons and holes.

Inspec keywords: ultraviolet spectra; electron-hole recombination; bismuth compounds; nanostructured materials; dyes; photocatalysis; nanofabrication; energy gap; photodissociation; X-ray diffraction; visible spectra; precipitation (physical chemistry); recycling; photocatalysts

Other keywords: morphologies; BPA; photogenerated electron-hole recombination rate; temperature 293.0 K to 298.0 K; time 30.0 min; BiO; photocatalyst; bismuth halide oxide; enhanced light-harvesting ability; methyl orange; methylene blue; catalyst P-BiOXs; bandgap energy; good photocatalytic stability; visible light illumination; highly efficient visible light catalytic properties; colourless bisphenol; halogen elements catalyst; facile precipitation method; room temperature; facile precipitation synthesis

Subjects: Other methods of nanofabrication; Photocatalysis; Heterogeneous catalysis at surfaces and other surface reactions; Structure of solid clusters, nanoparticles, nanotubes and nanostructured materials; Charge carriers: generation, recombination, lifetime, and trapping (semiconductors/insulators); Recycling; Photolysis and photodissociation by IR, UV and visible radiation

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http://iet.metastore.ingenta.com/content/journals/10.1049/mnl.2020.0354
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