Solvothermal synthesis of BiOBr thin film and its photocatalytic performance

Photocatalytic properties of hierarchical BiOXs obtained via an ethanol-assisted solvothermal process

“…The band gaps of the samples could be deduced from plots ( Fig. 4b) of (αhν) 1/2 versus energy (hν), and were calculated to be 3.24, 2.70 and 1.79 eV for BiOCl, BiOBr and BiOI, respectively, which are consistent with those reported previously (Liu et al, 2014;Su et al, 2014;Hu et al, 2014). According to Fig.…”

Deposition of BiOBr thin films by thermal evaporation and evaluation of its photocatalytic activity

“…4). The BiOBr thin film exhibited strong absorption at wavelength around below 420 nm, which represents an energy band gap value of 2.96 eV, which is comparable with those of BiOBr thin film reported previously [22].…”

“…From the different compounds of the family BiOX, the bromide oxyhalide BiOBr exhibits the higher activity in aqueous media due to an appropriate energy band gap value to adsorb an important portion of solar radiation [15]. It must be noted that films of BiOBr systems were previously obtained by solvothermal method by hydrolysis route [22]. In this work, BiOBr thin films with a controlled thickness of 300 nm were successfully obtained by thermal evaporation deposition following a similar procedure used to the deposition of thin films of ␥-Bi 2 MoO 6 photocatalyst [23].…”

The {0 0 1} facets-dependent superior photocatalytic activities of BiOCl nanosheets under visible light irradiation

“…The morphologies of BiOCl nanosheets have been widely reported [20,21]. The formation of these nanosheets may result from their laminar atomic structures.…”