Details
| Original language | English |
|---|---|
| Article number | 763 |
| Journal | Nanomaterials |
| Volume | 10 |
| Issue number | 4 |
| Publication status | Published - 16 Apr 2020 |
Abstract
In our work, we employed Cs 3Bi 2I 9 as a visible-light-active photocatalyst, synthesized with a low-temperature solvothermal method. The morphological and structural properties of the as-prepared perovskite were investigated, and the results were compared to previous studies to confirm its nature and the quality of the synthesis procedure. Transient absorption spectroscopy was applied in order to investigate the generation and lifetime of photogenerated charge carriers, revealing their formation after visible light excitation. The potential photocatalytic activity of the as-prepared metal halide perovskite was applied for the removal of Rhodamine B in aqueous solution, demonstrating an excellent activity of 93% after 180 min under visible-light irradiation. The current research aims to provide insights into the design of a new visible-light-active photocatalyst, Cs 3Bi 2I 9, selected for its high application value in the field of advanced materials for light harvesting.
Keywords
- Charge carrier separation, Halide perovskite, Laser photolysis, Visible light activity
ASJC Scopus subject areas
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In: Nanomaterials, Vol. 10, No. 4, 763, 16.04.2020.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Pb-Free Cs3Bi2I9 Perovskite as a Visible-Light-Active Photocatalyst for Organic Pollutant Degradation
AU - Bresolin, Bianca Maria
AU - Günnemann, Carsten
AU - Bahnemann, Detlef W.
AU - Sillanpää, Mika
N1 - Funding information: Supplementary Materials: The following are available online at http://www.mdpi.com/2079-4991/10/4/763/s1, Figure S1: Irradiance spectrum of a Halogen lamp (3200 K) compared to the solar irradiance on a surface per unit wSuavpeplleenmgtehntwarityh Mematpehriaasliss:oTnhve isfoibllloewliignhgt raarne gaev,aFiliagbulree oSn2l:inXeR aDt pwawttwer.nmsdopf iC.csoIman/xdxBx/isI31., Figure S1: Irradiance spectrum of a Halogen lamp (3200K) compared to the solar irradiance on a surface per unit wavelength with and performer of TAS analysis, D.W.B. as supervisor and M.S. funding provider. All authors have read and agree to the published version of the manuscript. Author Contributions: B.M.B. as author of research and editor of manuscript, C.G. as editor of the manuscript Funding: This research was funded by Maa-ja vesitekniikan tuki Foundation. and performer of TAS analysis, D.B. as supervisor and M.S. funding provider. All authors have read and agree Acknowledgments: We further thank the Laboratory of Nano and Quantum Engineering (LNQE), in particular Luis Granone for performing the XRD analysis. Funding: This research was funded by Maa-ja vesitekniikan tuki Foundation. Conflicts of Interest: The authors declare no conflict of interest Acknowledgments: We further thank the Laboratory of Nano and Quantum Engineering (LNQE), in particular RLueifse Grernanceosne for performing the XRD analysis.
PY - 2020/4/16
Y1 - 2020/4/16
N2 - In our work, we employed Cs 3Bi 2I 9 as a visible-light-active photocatalyst, synthesized with a low-temperature solvothermal method. The morphological and structural properties of the as-prepared perovskite were investigated, and the results were compared to previous studies to confirm its nature and the quality of the synthesis procedure. Transient absorption spectroscopy was applied in order to investigate the generation and lifetime of photogenerated charge carriers, revealing their formation after visible light excitation. The potential photocatalytic activity of the as-prepared metal halide perovskite was applied for the removal of Rhodamine B in aqueous solution, demonstrating an excellent activity of 93% after 180 min under visible-light irradiation. The current research aims to provide insights into the design of a new visible-light-active photocatalyst, Cs 3Bi 2I 9, selected for its high application value in the field of advanced materials for light harvesting.
AB - In our work, we employed Cs 3Bi 2I 9 as a visible-light-active photocatalyst, synthesized with a low-temperature solvothermal method. The morphological and structural properties of the as-prepared perovskite were investigated, and the results were compared to previous studies to confirm its nature and the quality of the synthesis procedure. Transient absorption spectroscopy was applied in order to investigate the generation and lifetime of photogenerated charge carriers, revealing their formation after visible light excitation. The potential photocatalytic activity of the as-prepared metal halide perovskite was applied for the removal of Rhodamine B in aqueous solution, demonstrating an excellent activity of 93% after 180 min under visible-light irradiation. The current research aims to provide insights into the design of a new visible-light-active photocatalyst, Cs 3Bi 2I 9, selected for its high application value in the field of advanced materials for light harvesting.
KW - Charge carrier separation
KW - Halide perovskite
KW - Laser photolysis
KW - Visible light activity
UR - http://www.scopus.com/inward/record.url?scp=85083830949&partnerID=8YFLogxK
U2 - 10.3390/nano10040763
DO - 10.3390/nano10040763
M3 - Article
C2 - 32316119
VL - 10
JO - Nanomaterials
JF - Nanomaterials
SN - 2079-4991
IS - 4
M1 - 763
ER -