Direct conversion of Bi nanospheres into 3D flower-like BiOBr nanoarchitectures with enhanced photocatalytic properties

Highly efficient photocatalytic degradation of methyl orange and Rhodamine B by hierarchical BiOBr microspheres

“…tion molecules in solution [18,29,30], this allows more efficient transport for the reactant molecules to the active sites so that to separate and transfer of photoinduced electrons and holes to the surface efficiently thus facilitate the degradation of MO and RhB dyes [14]; Based on the analysis above, it can be concluded that the efficient photocatalytic activities of BiOBr microsphere could be due to synergistic effects, including the porous microspheres structure, its narrow band gap, large specific surface area and particle size.…”

BiOBr photocatalysts with tunable exposing proportion of {001} facets: Combustion synthesis, characterization, and high visible-light photocatalytic properties

“…In recent years, bismuth oxybromide (BiOBr) has received much attention due to its potential photocatalytic abilities under visible light [9]. BiOBr is of tetragonal structure that consists of tetragonal [Bi 2 O 2 ] positively charged slabs, which are interleaved by double slabs of bromine atoms to form [Br-Bi-O-Bi-Br] layers along the c-axis [10]. The self-built electric field between [Bi 2 O 2 ] and Br slabs would effectively separate the photoinduced electron-hole pairs, thus transfer the electrons and holes to the surface of BiOBr, which would enhance the photocatalytic activity [11].…”

“…Up to now, various BiOBr micro/nano-structures, including nanoparticles, nanotubes and nanobelts, nanoplates, and microsheets, have been successfully fabricated by means of the microemulsion, solvothermal, and sol-gel methods. For instance, Xiong has demonstrated for the first time the direct conversion of metallic Bi nanospheres into threedimensional (3D) flower-like BiOBr nanoarchitectures at room temperature [10]. Xu and co-workers successfully prepared two-dimensional and three-dimensional BiOBr via the facile co-precipitation methods with Bi(NO 3 ) 3 Á 5H 2 O as the Bi source [12].…”

Controllable in situ synthesis of BiOBrxI1−x solid solution on reduced graphene oxide with enhanced visible light photocatalytic performance

“…Numerous semiconductors with narrow band gap have recently been studied as visible light harvesting photocatalysts. Up to date, some strategies have been carried out, which includes the controlling synthesis of BiOX with specic morphology and structure, [12][13][14][15][16] constructing BiOX-based composites with other semiconductors (such as TiO 2 , 17 ZnO, 18 27 ) and doping with metal atoms [28][29][30][31][32] (such as Ag, Al, Fe, Ti, Mn). [4][5][6][7][8] All of the BiOX crystallize in the tetragonal matlockite structure comprising of [Bi 2 O 2 ] 2+ slabs interleaved by double slabs of halogen atoms.…”