A linker-mediated self-assembly method to couple Isocharged nanostructures: Layered double hydroxide-CdS nanohybrids with high activity for visible-light-induced H2 Generation

Jang Mee Lee, Jayavant L. Gunjakar, Yeilin Ham, In Young Kim, Kazunari Domen, Seong Ju Hwang

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

The electrostatically derived self-assembly of cationic Zn-Cr-layered double hydroxide (LDH) nanosheets and cationic CdS quantum dots (QDs) with anionic linkers leads to the formation of strongly coupled Zn-Cr-LDH-CdS nanohybrids. The hybridization with Zn-Cr-LDH leads to significant enhancement of the photocatalytic activity of CdS for visible-light-induced H2 generation, a property that is attributed to the depression of electron-hole recombination. In comparison with a direct hybridization method between oppositely charged species, this linker-mediated method provides greater flexibility in controlling the chemical composition and electronic coupling of the nanohybrids. The present hybridization strategy provides a useful method not only to couple two kinds of isocharged nanostructured materials, but also to explore efficient hybrid-type photocatalysts.

Original languageEnglish
Pages (from-to)17004-17010
Number of pages7
JournalChemistry - A European Journal
Volume20
Issue number51
DOIs
Publication statusPublished - 2014 Dec 15

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Nanosheets
Photocatalysts
Nanostructured materials
Self assembly
Semiconductor quantum dots
Nanostructures
Electrons
Chemical analysis
hydroxide ion

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)
  • Organic Chemistry

Cite this

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title = "A linker-mediated self-assembly method to couple Isocharged nanostructures: Layered double hydroxide-CdS nanohybrids with high activity for visible-light-induced H2 Generation",
abstract = "The electrostatically derived self-assembly of cationic Zn-Cr-layered double hydroxide (LDH) nanosheets and cationic CdS quantum dots (QDs) with anionic linkers leads to the formation of strongly coupled Zn-Cr-LDH-CdS nanohybrids. The hybridization with Zn-Cr-LDH leads to significant enhancement of the photocatalytic activity of CdS for visible-light-induced H2 generation, a property that is attributed to the depression of electron-hole recombination. In comparison with a direct hybridization method between oppositely charged species, this linker-mediated method provides greater flexibility in controlling the chemical composition and electronic coupling of the nanohybrids. The present hybridization strategy provides a useful method not only to couple two kinds of isocharged nanostructured materials, but also to explore efficient hybrid-type photocatalysts.",
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A linker-mediated self-assembly method to couple Isocharged nanostructures : Layered double hydroxide-CdS nanohybrids with high activity for visible-light-induced H2 Generation. / Lee, Jang Mee; Gunjakar, Jayavant L.; Ham, Yeilin; Kim, In Young; Domen, Kazunari; Hwang, Seong Ju.

In: Chemistry - A European Journal, Vol. 20, No. 51, 15.12.2014, p. 17004-17010.

Research output: Contribution to journalArticle

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AU - Domen, Kazunari

AU - Hwang, Seong Ju

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