Jump to main content
Jump to site search

Issue 13, 2012
Previous Article Next Article

Controllable synthesis of hollow/flower-like BiOI microspheres and highly efficient adsorption and photocatalytic activity

Author affiliations

Abstract

Hollow/flower-like BiOI microspheres have been prepared through a facile precipitation route in a water–ethanol mixed solution with the assistance of PVP and citric acid (CA) at low temperature (70 °C). The obtained products were characterized by a range of methods such as XRD, FESEM, TEM, UV-vis, DRS, PL and nitrogen sorption. A three-stage growth mechanism of such hierarchical hollow/flower-like microstructures has been proposed by observing the XRD analysis and FESEM of the intermediate products at different reaction times. Interestingly, the structure of BiOI from hollow to flower-like could be obtained by only adjusting the different amounts of reagents in the reaction system. The photocatalytic activities of the hollow/flower-like microspheres were evaluated by the degradation of RhB under visible-light irradiation, compared with the nanoplate sample and P25. Although the hollow BiOI microspheres had a higher specific surface area, the flower-like BiOI microspheres exhibited much higher adsorption and photocatalytic activities than the former. This controllable morphology method and particular properties of BiOI hierarchical microstructures could be used to synthesize bismuth-based semiconductors or other structure-controllable materials and to explore remarkable potential applications of their photocatalytic degradation ability.

Graphical abstract: Controllable synthesis of hollow/flower-like BiOI microspheres and highly efficient adsorption and photocatalytic activity

Back to tab navigation

Supplementary files

Publication details

The article was received on 17 Jan 2012, accepted on 27 Mar 2012 and first published on 27 Mar 2012


Article type: Paper
DOI: 10.1039/C2CE25087J
Citation: CrystEngComm, 2012,14, 4384-4390
  •   Request permissions

    Controllable synthesis of hollow/flower-like BiOI microspheres and highly efficient adsorption and photocatalytic activity

    K. Ren, K. Zhang, J. Liu, H. Luo, Y. Huang and X. Yu, CrystEngComm, 2012, 14, 4384
    DOI: 10.1039/C2CE25087J

Search articles by author

Spotlight

Advertisements