Abstract
A hollow carbon-modified Fe3O4 (H-C-Fe3O4) has been fabricated by a one-step and template-free solvothermal method with ethanol as the solvent. The catalytic activity of H-C-Fe3O4(ethanol) is investigated for solvent-free aerobic oxidation of benzyl alcohol to benzaldehyde with O2. It is found that H-C-Fe3O4(ethanol) offer a superior benzaldehyde yield and selectivity. The good catalytic performance of H-C-Fe3O4(ethanol) benefits from the rich interfaces between the carbon and Fe3O4, plus the interspace voids introduced by its hollow structure. Besides, the target H-C-Fe3O4(ethanol) can be facilely recycled with a magnet and exhibits good potential for catalyst reuse.
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