Journal
JOURNAL OF PHYSICAL CHEMISTRY C
Volume 112, Issue 33, Pages 12728-12735Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jp8035617
Keywords
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Funding
- College Natural Science Foundation of Anhui Province [KJ2008B168, KJ 2008B167]
- NSFC [20701002]
- Education Department of Anhui Province [2006KJ006TD]
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This study presents a novel method for the preparation of Fe3O4/MS (M = Zn, Cd, Hg, Pb, Co, and Ni) nanocomposites via a sonochemical aqueous route. This method is mild, convenient, cheap, and efficient. A creditable synthetic mechanism for the formation of the nanocomposites has been proposed. It can be found that the concentration of TAA plays an important role in the controlling of the size and density of the nanoparticles immobilized on the surface of the magnetic microspheres. Fe3O4/ZnS and Fe3O/CdS nanocomposites display fluorescence and exhibit ferromagnetic behavior at room temperature. Photocatalytic activity studies demonstrate that the former ones have highly photocatalytic activity toward the photodegradation of eosin Y in aqueous solution. The catalytic efficiency only decreased by 5% when cyclic time was up to 15 cycles, which means that as-prepared Fe3O4/ZnS nanocomposites have promising applications not only in biomedical fields but also in organic synthesis or wastewater treatment as recyclable photocatalysts. Furthermore, this method can be extended to the synthesis of other magnetic nanocomposites.
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