Bi2WO6@carbon/Fe3O4 microspheres: Preparation, growth mechanism and application in water treatment

Ling Zhang, Wenzhong Wang, Meng Shang, Songmei Sun, Jiehui Xu

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Abstract

A novel Bi2WO6@carbon/Fe3O4 nanostructure with a thin carbon interlayer was reported. Reactive carbon interlayer was introduced as a key component for the growth of Bi2WO6 nanoplates on the magnetic Fe3O4 microsphere. After the carbon layer was oxidized by the KMnO4 in the basic solution, Bi3+ ions could be adsorbed by the as produced -COO- groups and thus Bi2WO6 nanoplates grew on the surface of the carbon/Fe3O4 microspheres preferentially. The as-prepared nanocomposite, which could be easily recovered by a magnet, exhibited high efficiency in the photocatalytic decomposition of phenol with the assistance of H2O2. The combination of photocatalyst and magnetic materials through a reactive carbon interlayer opens up a new route for the fabrication of complex and multifunctional nanostructure.

Original languageEnglish
Pages (from-to)1193-1197
Number of pages5
JournalJournal of Hazardous Materials
Volume172
Issue number2-3
DOIs
Publication statusPublished - Dec 30 2009

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All Science Journal Classification (ASJC) codes

  • Environmental Engineering
  • Environmental Chemistry
  • Waste Management and Disposal
  • Pollution
  • Health, Toxicology and Mutagenesis

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