Enhancing photocatalytic hydrogen evolution by intramolecular energy transfer in naphthalimide conjugated porphyrins

Govardhana Babu Bodedla, Lingling Li, Yuanyuan Che, Yijiao Jiang, Jun Huang, Jianzhang Zhao, Xunjin ZHU*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)

Abstract

Three new isomeric naphthalimide conjugated porphyrins, ZnT(p-NI)PP, ZnT(m-NI)PP and ZnT(o-NI)PP are developed for photocatalytic H2 production. The para-substituted isomer, ZnT(p-NI)PP delivered a much higher H2 production rate (ηH2) of 973 μmol g-1 h-1 compared to that of meta- and ortho-substituted isomers, ZnT(m-NI)PP (597 μmol g-1 h-1) and ZnT(o-NI)PP (54 μmol g-1 h-1), respectively. The ZnTPP produced ηH2 of 7 μmol g-1 h-1, which is 200 times lower than the ZnT(p-NI)PP. The highest ηH2 of ZnT(p-NI)PP among the isomers could be attributed to the most efficient intramolecular energy transfer from the naphthalimide to the porphyrin ring which further enhanced the electron transfer from the photo-excited porphyrin moiety to the Pt co-catalyst.

Original languageEnglish
Pages (from-to)11614-11617
Number of pages4
JournalChemical Communications
Volume54
Issue number82
DOIs
Publication statusPublished - 2018

Scopus Subject Areas

  • Catalysis
  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Chemistry(all)
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

Fingerprint

Dive into the research topics of 'Enhancing photocatalytic hydrogen evolution by intramolecular energy transfer in naphthalimide conjugated porphyrins'. Together they form a unique fingerprint.

Cite this