Details
| Original language | English |
|---|---|
| Article number | e202400661 |
| Journal | CHEMCATCHEM |
| Volume | 16 |
| Issue number | 22 |
| Early online date | 13 Aug 2024 |
| Publication status | Published - 25 Nov 2024 |
Abstract
In micellar catalysis, one uses aggregates formed by surfactants as nanoreactors for performing chemical reactions. A special class of tailor-made surfactants containing catalytically active sites opens new perspectives in micellar catalysis. Little is known about the combination of such surfactants with photocatalysis. Molecular semiconductors are presented, which simultaneously have amphiphilic properties and are made of a hydrophilic fullerenol head group attached to dye molecules as the hydrophobic entity. The first generation of those surfactants produces reactive oxygen species (ROS) when exposed to light in the UV/Vis range. The concept of the current paper is that one can drive the photocatalytic process also using low-energy photons in the near-infrared region. For this purpose, NIR-active dye molecules were selected and attached to the fullerenol head. It is shown that a fullerenol - aminostilbene compound representing the second generation of semiconductor surfactants fulfills all requirements. It forms aggregates in water that are catalytically active. Moreover, two-photon experiments with λ=780 nm were performed, indicating successful ROS production and, thus, photocatalytic activity.
Keywords
- Micellar catalysis, Molecular semiconductors, Photocatalysis, Reactive oxygen species, Surfactants
ASJC Scopus subject areas
- Chemical Engineering(all)
- Catalysis
- Chemistry(all)
- Physical and Theoretical Chemistry
- Chemistry(all)
- Organic Chemistry
- Chemistry(all)
- Inorganic Chemistry
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In: CHEMCATCHEM, Vol. 16, No. 22, e202400661, 25.11.2024.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Micellar (Photo−)Catalysis Driven by IR-Active Semiconductor Surfactants
AU - Polarz, Sebastian
AU - Jaschke, Marian
AU - Siroky, Stephan
AU - Kalies, Stefan
AU - Weber, Nils
AU - Heisterkamp, Alexander
N1 - Publisher Copyright: © 2024 The Authors. ChemCatChem published by Wiley-VCH GmbH.
PY - 2024/11/25
Y1 - 2024/11/25
N2 - In micellar catalysis, one uses aggregates formed by surfactants as nanoreactors for performing chemical reactions. A special class of tailor-made surfactants containing catalytically active sites opens new perspectives in micellar catalysis. Little is known about the combination of such surfactants with photocatalysis. Molecular semiconductors are presented, which simultaneously have amphiphilic properties and are made of a hydrophilic fullerenol head group attached to dye molecules as the hydrophobic entity. The first generation of those surfactants produces reactive oxygen species (ROS) when exposed to light in the UV/Vis range. The concept of the current paper is that one can drive the photocatalytic process also using low-energy photons in the near-infrared region. For this purpose, NIR-active dye molecules were selected and attached to the fullerenol head. It is shown that a fullerenol - aminostilbene compound representing the second generation of semiconductor surfactants fulfills all requirements. It forms aggregates in water that are catalytically active. Moreover, two-photon experiments with λ=780 nm were performed, indicating successful ROS production and, thus, photocatalytic activity.
AB - In micellar catalysis, one uses aggregates formed by surfactants as nanoreactors for performing chemical reactions. A special class of tailor-made surfactants containing catalytically active sites opens new perspectives in micellar catalysis. Little is known about the combination of such surfactants with photocatalysis. Molecular semiconductors are presented, which simultaneously have amphiphilic properties and are made of a hydrophilic fullerenol head group attached to dye molecules as the hydrophobic entity. The first generation of those surfactants produces reactive oxygen species (ROS) when exposed to light in the UV/Vis range. The concept of the current paper is that one can drive the photocatalytic process also using low-energy photons in the near-infrared region. For this purpose, NIR-active dye molecules were selected and attached to the fullerenol head. It is shown that a fullerenol - aminostilbene compound representing the second generation of semiconductor surfactants fulfills all requirements. It forms aggregates in water that are catalytically active. Moreover, two-photon experiments with λ=780 nm were performed, indicating successful ROS production and, thus, photocatalytic activity.
KW - Micellar catalysis
KW - Molecular semiconductors
KW - Photocatalysis
KW - Reactive oxygen species
KW - Surfactants
UR - http://www.scopus.com/inward/record.url?scp=85206577728&partnerID=8YFLogxK
U2 - 10.1002/cctc.202400661
DO - 10.1002/cctc.202400661
M3 - Article
AN - SCOPUS:85206577728
VL - 16
JO - CHEMCATCHEM
JF - CHEMCATCHEM
SN - 1867-3880
IS - 22
M1 - e202400661
ER -