Login / Signup

Chemical Engineering of Photoactivity in Heterometallic Titanium-Organic Frameworks by Metal Doping.

Javier Castells-GilNatalia M PadialNeyvis Almora-BarriosJosep AlberoA Rabdel Ruiz-SalvadorJavier González PlatasHermenegildo GarcíaCarlos Martí-Gastaldo
Published in: Angewandte Chemie (International ed. in English) (2018)
We report a new family of titanium-organic frameworks that enlarges the limited number of crystalline, porous materials available for this metal. They are chemically robust and can be prepared as single crystals at multi-gram scale from multiple precursors. Their heterometallic structure enables engineering of their photoactivity by metal doping rather than by linker functionalization. Compared to other methodologies based on the post-synthetic metallation of MOFs, our approach is well-fitted for controlling the positioning of dopants at an atomic level to gain more precise control over the band-gap and electronic properties of the porous solid. Changes in the band-gap are also rationalized with computational modelling and experimentally confirmed by photocatalytic H2 production.
Keyphrases
  • metal organic framework
  • highly efficient
  • room temperature
  • water soluble
  • transition metal
  • multidrug resistant
  • electron microscopy