Aloe vera-derived graphene-coupled phenosafranin photocatalyst for generation and regeneration of ammonia and NADH by mimicking natural photosynthetic route

Photochem Photobiol. 2024 Jan-Feb;100(1):41-51. doi: 10.1111/php.13831. Epub 2023 Jul 17.


Aloe vera-derived graphene (ADG) coupled system photocatalyst, mimicking natural photosynthesis, is one of the most promising ways for converting solar energy into ammonia (NH3 ) and nicotinamide adenine dinucleotide (NADH) that have been widely used to make the numerous chemicals such as fertilizer and fuel. In this study, we report the synthesis of the aloe vera-derived graphene-coupled phenosafranin (ADGCP) acting as a highly efficient photocatalyst for the generation of NH3 and regeneration of NADH from nitrogen (N2 ) and oxidized form of nicotinamide adenine dinucleotide (NAD+ ). The results show a benchmark instance for mimicking natural photosynthesis activity as well as the practical applications for the solar-driven selective formation of NH3 and the regeneration of NADH by using the newly designed photocatalyst.

Keywords: NADH regeneration; aloe vera-derived graphene; aloe vera-derived graphene-coupled phenosafranin; nitrogen conversion; photocatalysis.

MeSH terms

  • Aloe* / metabolism
  • Ammonia
  • Graphite*
  • NAD / metabolism
  • Phenazines*
  • Photosynthesis


  • NAD
  • Ammonia
  • phenosafranine
  • Graphite
  • Phenazines