Abstract
Magnetically separable core/shell Fe3O4/ZnO heteronanostructures (MSCSFZ) were synthesized by a facile approach, and their application for enhanced solar photodegradation of RhB was studied. The formation mechanism of MSCSFZ was proposed, in which Fe3O4 nanoparticles served as a template for supporting and anchoring the ZnO crystal layer as the shells. The morphology of MSCSFZ can be varied from spherical to rice seed-like structures, and the bandgap was able to be narrowed down to 2.78 eV by controlling the core–shell ratios. As a result, the MSCSFZ exhibited excellent visible-light photocatalytic activity for degradation of rhodamine B (RhB) in aqueous solution as compared to the controlled ZnO nanoparticles. Moreover, MSCSFZ could be easily detached from RhB solution and maintained its performance after 4 cycles of usage. This work provides new insights for the design of high-efficient core/shell recyclable photocatalysts with visible light photocatalytic performance.
Highlights
Utilizing nanomaterials for water treatment technology has been considered as a potential solution for protecting and developing the environment and energy resources.[1]
Magnetically separable core/shell Fe3O4/ZnO heteronanostructures (MSCSFZ) could be detached from rhodamine B (RhB) solution and maintained its performance after 4 cycles of usage
With the rapid development of water treatment nanotechnology, semiconductor nanophotocatalysts have drawn considerable attention owing to their superior efficiency in photocatalytic degradation of stable and toxic organic pollutants in water sources.[2,3]
Summary
Utilizing nanomaterials for water treatment technology has been considered as a potential solution for protecting and developing the environment and energy resources.[1].
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