"caffeine Doping" of Carbon/Nitrogen-Based Organic Catalysts: Caffeine as a Supramolecular Edge Modifier for the Synthesis of Photoactive Carbon Nitride Tubes

Thomas Jordan, Nina Fechler, Jingsan Xu, Thomas J.K. Brenner, Markus Antonietti, Menny Shalom

Research output: Contribution to journalArticlepeer-review

70 Scopus citations

Abstract

An alternative method for the structure tuning of carbon nitride materials by using a supramolecular approach in combination with caffeine as lining-agent is described. The self-assembly of the precursor complex consisting of melamine and cyanuric acid can be controlled by this doping molecule in terms of morphology, electronic, and photophysical properties. Caffeine is proposed to insert as an edge-molecule eventually leading to hollow tube-like carbon nitride structures with improved efficiency of charge formation. Compared to the bulk carbon nitride, the caffeine-doped analogue possesses a higher photocatalytic activity for the degradation of rhodamine B dye. Furthermore, this approach is also shown to be suitable for the modification of carbon nitride electrodes.

Original languageEnglish
Pages (from-to)2826-2830
Number of pages5
JournalChemCatChem
Volume7
Issue number18
DOIs
StatePublished - 1 Sep 2015
Externally publishedYes

Keywords

  • caffeine
  • carbon nitride
  • films
  • photocatalysis
  • supramolecular chemistry

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