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Mussel-directed synthesis of nitrogen-doped anatase TiO2
Xie, J.; Xie, H.; Su, B.-L.; Cheng, Y.; Du, X.; Zeng, H.; Wang, M.; Wang, W.; Wang, H.; Fu, Z. (2016). Mussel-directed synthesis of nitrogen-doped anatase TiO2. Angew. Chem. 55(9): 3031-3035. https://dx.doi.org/10.1002/anie.201509906
In: Angewandte Chemie. Wiley: Weinheim. ISSN 1433-7851; e-ISSN 1521-3773
Peer reviewed article  
Beschikbaar in  Auteurs 
Author keywords
    ambient temperature; bioprocess-inspired synthesis; intracellularproteins; natural organisms; nitrogen-doped TiO2
Auteurs  Top 
  • Xie, J.
  • Xie, H.
  • Su, B.-L.
  • Cheng, Y.
  • Du, X.
  • Zeng, H.
  • Wang, M.
  • Wang, W.
  • Wang, H.
  • Fu, Z.
Abstract
    Structure-forming processes leading to biominerals are well worth learning in pursuit of new synthetic techniques. Strategies that attempt to mimic nature in vitro cannot replace an entire complex natural organism, requiring ingenuity beyond chemists' hands. A “bioprocess-inspired synthesis” is demonstrated for fabrication of N-doped TiO2 materials at ambient temperature by direct implantation of precursor into living mussels. The amorphous precursor transforms into N-doped anatase TiO2 with a hierarchical nanostructure. Synthetic TiO2 exhibits high phase stability and enhanced visible-light photocatalytic activity as a result of modifications to its band gap during in vivo mineralization. Intracellular proteins were found to be involved in TiO2 mineralization. Our findings may inspire material production by new synthetic techniques, especially under environmentally benign conditions.
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