Hierarchical heterostructures of p-type bismuth oxychloride nanosheets on n-type zinc ferrite electrospun nanofibers with enhanced visible-light photocatalytic activities and magnetic separation properties.

Author(s) Sun, Y.; Shao, C.; Li, X.; Guo, X.; Zhou, X.; Li, X.; Liu, Y.
Journal J Colloid Interface Sci
Date Published 2018 Apr 15

P-type bismuth oxychloride (p-BiOCl) nanosheets were uniformly grown on n-type zinc ferrite (n-ZnFeO) electrospun nanofibers via a solvothermal technique to form hierarchical heterostructures of p-BiOCl/n-ZnFeO (p-BiOCl/n-ZnFeO H-Hs). The density and loading amounts of the BiOCl nanosheets with exposed {0 0 1} facets were easily controlled by adjusting the reactant concentration in the solvothermal process. The p-BiOCl/n-ZnFeO H-Hs exhibited enhanced visible-light photocatalytic activities for the degradation of Rhodamine B (RhB). The apparent first-order rate of the p-BiOCl/n-ZnFeO H-Hs and its normalized constant were about 12.6- and 8-fold higher than pure ZnFeO nanofibers. This suggests that both the improved charge separation efficiency from the uniform p-n heterojunctions and the enlarged active surface sites from the hierarchical structures increase the photocatalytic performances. Furthermore, the p-BiOCl/n-ZnFeO H-Hs could be efficiently separated from the solution with an external magnetic field via the ferromagnetic behavior of ZnFeO nanofibers. The magnetic p-BiOCl/n-ZnFeO H-Hs with enhanced visible-light photocatalytic performances might have potential applications in water treatment.

DOI 10.1016/j.jcis.2018.01.033
ISSN 1095-7103
Citation J Colloid Interface Sci. 2018;516:110120.

Related Applications, Forms & Industries