High-performance bioassisted nanophotocatalyst for hydrogen production

Shankar Balasubramanian, Peng Wang, Richard D Schaller, Tijana Rajh, Elena A. Rozhkova

Research output: Contribution to journalArticle

40 Citations (Scopus)

Abstract

Nanophotocatalysis is one of the potentially efficient ways of capturing and storing solar energy. Biological energy systems that are intrinsically nanoscaled can be employed as building blocks for engineering nanobio-photocatalysts with tunable properties. Here, we report upon the application of light harvesting proton pump bacteriorhodopsin (bR) assembled on Pt/TiO2 nanocatalyst for visible light-driven hydrogen generation. The hybrid system produces 5275 μmole of H2 (μmole protein)-1 h-1 at pH 7 in the presence of methanol as a sacrificial electron donor under white light. Photoelectrochemical and transient absorption studies indicate efficient charge transfer between bR protein molecules and TiO2 nanoparticles.

Original languageEnglish
Pages (from-to)3365-3371
Number of pages7
JournalNano Letters
Volume13
Issue number7
DOIs
Publication statusPublished - Jul 10 2013

Fingerprint

hydrogen production
Hydrogen production
Bacteriorhodopsins
proteins
Proteins
Proton Pumps
solar energy
Photocatalysts
Hybrid systems
Solar energy
Methanol
Charge transfer
Hydrogen
Protons
methyl alcohol
charge transfer
Pumps
engineering
pumps
Nanoparticles

Keywords

  • bacteriorhodopsin
  • energy
  • Nanobiohybrid
  • protons photoreduction
  • Pt/TiO

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Mechanical Engineering

Cite this

Balasubramanian, S., Wang, P., Schaller, R. D., Rajh, T., & Rozhkova, E. A. (2013). High-performance bioassisted nanophotocatalyst for hydrogen production. Nano Letters, 13(7), 3365-3371. https://doi.org/10.1021/nl4016655

High-performance bioassisted nanophotocatalyst for hydrogen production. / Balasubramanian, Shankar; Wang, Peng; Schaller, Richard D; Rajh, Tijana; Rozhkova, Elena A.

In: Nano Letters, Vol. 13, No. 7, 10.07.2013, p. 3365-3371.

Research output: Contribution to journalArticle

Balasubramanian, S, Wang, P, Schaller, RD, Rajh, T & Rozhkova, EA 2013, 'High-performance bioassisted nanophotocatalyst for hydrogen production', Nano Letters, vol. 13, no. 7, pp. 3365-3371. https://doi.org/10.1021/nl4016655
Balasubramanian, Shankar ; Wang, Peng ; Schaller, Richard D ; Rajh, Tijana ; Rozhkova, Elena A. / High-performance bioassisted nanophotocatalyst for hydrogen production. In: Nano Letters. 2013 ; Vol. 13, No. 7. pp. 3365-3371.
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