Novel highly-active Ag/Bi dual nanoparticles-decorated BiOBr photocatalyst for efficient degradation of ibuprofen

Studies on the Application of PGM Nanocatalysts from Spent Automotive Converters for Degradation of Ibuprofen in Aqueous Solutions

“…It appears that the Pt/Fe/Pd@TiO 2 catalyst synthesized in this work, derived from the hydrometallurgical treatment of SACs, reaches 88% IB conversion in 5 min and 92% in 60 min, comparable to other efficient nanocatalysts such as MgFe 2 O 4 or magnetic Pd@Fe 3 O 4 . Photocatalysis 222 nm, 0.03 g TiO 2 , pH 5.0 100% in 5 min [23] Co-P 800/PMS 10 mg/dm 3 IB, 2 mM PMS, 0.1 g/dm 3 catalyst, <23 • C, pH 7.6 90% in 120 min [24] BiOBr Photocatalytic degradation-simulated solar light irradiation, 20 mg/dm 3 IB, 0.5 g/dm 3 BiOBr 100% in 20 min [25] MgFe 2 O 4 Fenton-catalyst, 0.5 g/dm 3 catalyst, 20 mmol/dm 3 H 2 O 2, 10 mg/dm 3 IB, pH 6.0 100% in 40 min [33] Ag/Bi-BiOBr Photocatalytic degradation-simulated solar light irradiation, 20 mg/dm 3 IB, 30 mg/100 cm 3 Ag/Bi-BiOBr 92.3% in 60 min [37] MnCo 2 O 4 @FCNTs Catalytic oxidation, 25.0 ± 0.2 • C, 10 mg/dm 3 IB, pH 3-9 >90% in 10 min [38] ZnO UV light irradiation 254 nm, 25 • C, 20 mg/dm 3 IB 60% in 60 min [39] Biogenic Pt-NPs, Pd-NPs Anaerobic conditions, 1 mg of the metallic cell NPs (25% of total mass composed by metal), 1 mg/dm 3 IB, pH 5.3 0% [40] FCNT-functionalized multi-walled carbon nanotubes, Co-P 800-Co-doped carbon matrix, PMSperoxymonosulphate activator.…”

Bi nanosphere-decorated oxygen-vacancy BiOBr hollow microspheres with exposed (110) facets to enhance the photocatalytic performance for the degradation of azo dyes

“…[19][20][21][22] As a new class of layered materials, BiOBr has been reported as a promising photocatalyst owing to its remarkable properties, including exceptional electronic and optical properties, cost effectiveness, non-toxicity, photostability, and appropriate energy band positions. 23,24 One important characteristic of BiOBr is that the interaction of the van der Waals forces ensures positively charged [Bi 2 O 2 ] 2+ slabs can be interleaved with double slabs of Br À , which is conducive to the formation of a self-built internal static electric field perpendicular to each layer. 25,26 The layered structure could accelerate the separation of photogenerated electron-hole pairs, and can allow a variety of active species to intercalate into the interlaminar zone, being based on the weak interlayer interaction of van der Waals forces.…”