Fabrication of BiOCl/BiOBr hybrid nanosheets with enhanced superoxide radical dominating visible light driven photocatalytic activity

Effects of Surface Terminations of 2D Bi2WO6 on Photocatalytic Hydrogen Evolution from Water Splitting

“…A tunable electronic structure and corresponding properties are thus expected. 32,35 In Cl/Br-containing 2D Bi 2 WO 6 nanosheets, the stable WO 6 structure and configurations of bilayer Bi atoms layers are still well maintained (Figure 2k,l). This may imply that the outermost surface O atoms from Bi 2 O 2 terminations are partly replaced by Cl/Br atoms.…”

Recent advances in bismuth oxyhalide photocatalysts for degradation of organic pollutants in wastewater

“…Due to the structure similarity of BiOCl and BiOBr, one-step hydrothermal or solvothermal method was used to prepare BiOCl/BiOBr heterojunction, and the morphology and the ratio of BiOCl/BiOBr are the main factors for deciding the photocatalytic activity. In this field, Cui et al 126 synthesized BiOCl nanoparticles on BiOBr nanosheets via hydrothermal method, and the BiOBr/BiOCl hybrid nanosheets with the weight ratio of 10 : 1 exhibited the best photocatalytic activity for degradation of Rh B. Under the assistance of ethylene glycol (EG), Zhang et al 127 prepared nanosheet-assembled BiOCl/BiOBr microspheres ( Fig.…”

The synthesis of a BiOClxBr1−x nanostructure photocatalyst with high surface area for the enhanced visible-light photocatalytic reduction of Cr(vi)

“…Numerous new visible light-driven photocatalysts have been developed, among which BiOBr is one of the most promising candidates. BiOBr has an indirect narrow band gap of 2.80 eV and a layered structure with interlaced, positively charged [Bi 2 O 2 ] 2+ slabs and negatively charged double [Br] slices, [22][23][24] enabling it not only to absorb visible light but also to separate photogenerated carriers using an internal electric eld. 25 However, the photocatalytic activity of BiOBr is still not efficient enough for practical applications.…”