title: Room temperature, template-free synthesis of BiOI hierarchical structures: visible-light photocatalytic and electrochemical hydrogen storage properties.
abstract: Three-dimensional (3D) flower-like BiOI hierarchical structures have been successfully synthesized by a solution route at room temperature. The obtained sample was systematically studied by powder X-ray diffraction (XRD), field-emission scanning electron microscopy (FESEM) and transmission electron microscopy (TEM). It is noteworthy that no surfactant or assisted reagent was needed during the formation of this uniform flower-like structure. It was proposed that primary nanoflakes of Bi-EtOH complexes were initially formed in the solution, and then anisotropic growth led to the development of 3D flowerlike structures. In addition, the photocatalytic property of the sample under visible-light was investigated with three types of dye: heteropolyaromatic (Methylene Blue (MB)), azoic (Methyl Orange (MO)) and phenol (rhodamine B (RhB)). High photocatalytic activity was observed for the phenol dye RhB. The electrochemical hydrogen storage properties were also investigated.
authors.affiliation: State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, Jilin, China.
authors.forename: Yongqian
authors.initials: Y
authors.lastname: Lei
authors.forename: Guanhua
authors.initials: G
authors.lastname: Wang
authors.forename: Shuyan
authors.initials: S
authors.lastname: Song
authors.forename: Weiqiang
authors.initials: W
authors.lastname: Fan
authors.forename: Min
authors.initials: M
authors.lastname: Pang
authors.forename: Jinkui
authors.initials: J
authors.lastname: Tang
authors.forename: Hongjie
authors.initials: H
authors.lastname: Zhang