All-organic Z-scheme photoreduction of CO2 with water as the donor of electrons 
and protons

Mazzanti, Stefano; Cao, Shaowen; ten Brummelhuis, Katharina; Völkel, Antje; Khamrai, Jagadish; Sharapa, Dmitry I.; Youk, Sol; Heil, Tobias; Tarakina, Nadezda V.; Strauß, Volker; Ghosh, Indrajit; König, Burkhard; Oschatz, Martin; Antonietti, Markus; Savateev, Aleksandr

doi:10.1016/j.apcatb.2020.119773

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All-organic Z-scheme photoreduction of CO₂ with water as the donor of electrons and protons

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Mazzanti, Stefano
Aleksandr Savateev, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

/persons/resource/persons230732

Cao, Shaowen
Markus Antonietti, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

/persons/resource/persons121707

ten Brummelhuis, Katharina
Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

/persons/resource/persons121975

Völkel, Antje
Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

/persons/resource/persons252484

Youk, Sol
Martin Oschatz, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

/persons/resource/persons206227

Heil, Tobias
Nadezda V. Tarakina, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

/persons/resource/persons212917

Tarakina, Nadezda V.
Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

/persons/resource/persons229032

Strauß, Volker
Volker Strauß, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

/persons/resource/persons200485

Oschatz, Martin
Martin Oschatz, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

/persons/resource/persons1057

Antonietti, Markus
Markus Antonietti, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

/persons/resource/persons188005

Savateev, Aleksandr
Aleksandr Savateev, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

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Citation

Mazzanti, S., Cao, S., ten Brummelhuis, K., Völkel, A., Khamrai, J., Sharapa, D. I., et al. (2021). All-organic Z-scheme photoreduction of CO₂ with water as the donor of electrons and protons. Applied Catalysis B: Environmental, 285: 119773. doi:10.1016/j.apcatb.2020.119773.

Cite as: https://hdl.handle.net/21.11116/0000-0007-AC04-3

Abstract

Carbon nitrides and flavins are two classes of easy accessible transition metal-free, photoactive materials. Their photocatalytic efficiency to enable a variety of chemical reactions is well documented. Here, we report on their combination in one photocatalytic system by designing biomimetic non-spherical core-shell architectures comprising micro-sized crystals of flavins decorated by potassium poly(heptazine imide) nanoparticles on the surface. The designed non-spherical core-shell composites are tested in the photocatalytic CO₂ reduction to CH₄, MeOH, EtOH and CO using water vapor as a donor of electrons and protons at the gas-solid interface. The forged Z-scheme heterojunction between these two materials allows increasing of their photocatalytic performance. Whereby excited states lifetimes are extended by interface charge recombination and photoredox processes are boosted because of an overall wider band gap.