Molecular design of benzothiadiazole-based dyes for working with carbon nanotube photocatalysts

Yutaka Takaguchi, Hideaki Miyake, Takumi Izawa, Daiki Miyamoto, Ryohei Sagawa, Tomoyuki Tajima

Research output: Contribution to journalArticle

Abstract

A donor–acceptor–donor (D–A–D) dye consisting of ferrocene units (donors) and a benzothiadiazole unit (acceptor) was synthesized to use the photosensitizer for hydrogen evolution reaction (HER) from water within semiconducting single-walled carbon nanotube (s-SWCNT). The dye was easily encapsulated into s-SWCNT by a solution method to form dye-encapsulated s-SWCNTs (dye@SWCNTs). Subsequently, physical modification of dye@SWCNTs by a fullerodendron gave dye@SWCNT/fullerodendron nanohybrids having dye/s-SWCNT/C 60 coaxial heterojunction. Interestingly, dye@SWCNT/fullerodendron nanohybrids act as the photosensitizer for HER in the presence of sacrificial donor, electron relay, and co-catalyst due to the mobile carrier generation upon photoexcitation of the dye molecules.

Original languageEnglish
JournalPhosphorus, Sulfur and Silicon and the Related Elements
DOIs
Publication statusPublished - Jan 1 2019

Keywords

  • Benzothiadiazole
  • carbon nanotube
  • photosensitizer
  • thiocarbonyl
  • water splitting

ASJC Scopus subject areas

  • Biochemistry
  • Organic Chemistry
  • Inorganic Chemistry

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