Nanoassembly of perovskite-based photocatalysts in a nanoconfined system for photocatalytic H2 production under visible light

Md Moniruddin; Branden Meusling; Robin Dupre; Dominick J. Casadonte; Nurxat Nuraje

doi:10.1016/j.mcat.2019.110719

Nanoassembly of perovskite-based photocatalysts in a nanoconfined system for photocatalytic H₂ production under visible light

Md Moniruddin, Branden Meusling, Robin Dupre, Dominick J. Casadonte, Nurxat Nuraje

Chemistry and Biochemistry

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

This study reports the polymer-inorganic nanofibers directed nanoassembly of SrTiO₃ and its crystal growth behavior in a polymeric nanoconfined system with two synthesis variables, including precursor concentrations and calcination temperatures. The synthesis variables were also optimized to get nanoassembled SrTiO₃ in terms of photocatalytic H₂ evolution. Using the optimized nanoassembled SrTiO₃ as a platform, CdS/SrTiO₃ and CdS/Au/SrTiO₃ heterostructures were fabricated to investigate the nanofiber directed SrTiO₃ nanoassembly effect on the photoactivity of these heterostructures under visible light. The nanoassembled SrTiO₃-based heterostructures demonstrate an increased photocatalytic H₂ evolution rate compared to their respective unassembled heterostructures due to the advantageous interparticle nanoassembly which facilitates faster electron transport and better photoexcited charge separation. Photocatalyst heterostructure nanoassembly is one potential method of enhancing charge separation in photocatalysis.

Original language	English
Article number	110719
Journal	Molecular Catalysis
Volume	483
DOIs	https://doi.org/10.1016/j.mcat.2019.110719
State	Published - Mar 2020

Keywords

CdS/Au/SrTiO
Nanoassembled SrTiO
Photocatalytic hydrogen production
Visible light

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10.1016/j.mcat.2019.110719

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title = "Nanoassembly of perovskite-based photocatalysts in a nanoconfined system for photocatalytic H2 production under visible light",

abstract = "This study reports the polymer-inorganic nanofibers directed nanoassembly of SrTiO3 and its crystal growth behavior in a polymeric nanoconfined system with two synthesis variables, including precursor concentrations and calcination temperatures. The synthesis variables were also optimized to get nanoassembled SrTiO3 in terms of photocatalytic H2 evolution. Using the optimized nanoassembled SrTiO3 as a platform, CdS/SrTiO3 and CdS/Au/SrTiO3 heterostructures were fabricated to investigate the nanofiber directed SrTiO3 nanoassembly effect on the photoactivity of these heterostructures under visible light. The nanoassembled SrTiO3-based heterostructures demonstrate an increased photocatalytic H2 evolution rate compared to their respective unassembled heterostructures due to the advantageous interparticle nanoassembly which facilitates faster electron transport and better photoexcited charge separation. Photocatalyst heterostructure nanoassembly is one potential method of enhancing charge separation in photocatalysis.",

keywords = "CdS/Au/SrTiO, Nanoassembled SrTiO, Photocatalytic hydrogen production, Visible light",

author = "Md Moniruddin and Branden Meusling and Robin Dupre and Casadonte, {Dominick J.} and Nurxat Nuraje",

note = "Funding Information: This work was supported by ACS PRF (57095-DNI7). Authors gratefully acknowledge Texas Tech University for the support of this work. The authors also greatly acknowledge the assistance of Dr. Bo Zhao, Dr. Juliusz Warzywoda, and Dr. Daniel Unruh for materials characterization. The authors also acknowledge the assistance of Amanda Miller and Donald Ramirez for the optical spectroscopy measurements. Publisher Copyright: {\textcopyright} 2019 Elsevier B.V.",

year = "2020",

month = mar,

doi = "10.1016/j.mcat.2019.110719",

language = "English",

volume = "483",

journal = "Molecular Catalysis",

issn = "2468-8231",

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AU - Moniruddin, Md

AU - Meusling, Branden

AU - Dupre, Robin

AU - Casadonte, Dominick J.

AU - Nuraje, Nurxat

N1 - Funding Information: This work was supported by ACS PRF (57095-DNI7). Authors gratefully acknowledge Texas Tech University for the support of this work. The authors also greatly acknowledge the assistance of Dr. Bo Zhao, Dr. Juliusz Warzywoda, and Dr. Daniel Unruh for materials characterization. The authors also acknowledge the assistance of Amanda Miller and Donald Ramirez for the optical spectroscopy measurements. Publisher Copyright: © 2019 Elsevier B.V.

PY - 2020/3

Y1 - 2020/3

N2 - This study reports the polymer-inorganic nanofibers directed nanoassembly of SrTiO3 and its crystal growth behavior in a polymeric nanoconfined system with two synthesis variables, including precursor concentrations and calcination temperatures. The synthesis variables were also optimized to get nanoassembled SrTiO3 in terms of photocatalytic H2 evolution. Using the optimized nanoassembled SrTiO3 as a platform, CdS/SrTiO3 and CdS/Au/SrTiO3 heterostructures were fabricated to investigate the nanofiber directed SrTiO3 nanoassembly effect on the photoactivity of these heterostructures under visible light. The nanoassembled SrTiO3-based heterostructures demonstrate an increased photocatalytic H2 evolution rate compared to their respective unassembled heterostructures due to the advantageous interparticle nanoassembly which facilitates faster electron transport and better photoexcited charge separation. Photocatalyst heterostructure nanoassembly is one potential method of enhancing charge separation in photocatalysis.

AB - This study reports the polymer-inorganic nanofibers directed nanoassembly of SrTiO3 and its crystal growth behavior in a polymeric nanoconfined system with two synthesis variables, including precursor concentrations and calcination temperatures. The synthesis variables were also optimized to get nanoassembled SrTiO3 in terms of photocatalytic H2 evolution. Using the optimized nanoassembled SrTiO3 as a platform, CdS/SrTiO3 and CdS/Au/SrTiO3 heterostructures were fabricated to investigate the nanofiber directed SrTiO3 nanoassembly effect on the photoactivity of these heterostructures under visible light. The nanoassembled SrTiO3-based heterostructures demonstrate an increased photocatalytic H2 evolution rate compared to their respective unassembled heterostructures due to the advantageous interparticle nanoassembly which facilitates faster electron transport and better photoexcited charge separation. Photocatalyst heterostructure nanoassembly is one potential method of enhancing charge separation in photocatalysis.

KW - CdS/Au/SrTiO

KW - Nanoassembled SrTiO

KW - Photocatalytic hydrogen production

KW - Visible light

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DO - 10.1016/j.mcat.2019.110719

M3 - Article

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SN - 2468-8231

VL - 483

JO - Molecular Catalysis

JF - Molecular Catalysis

M1 - 110719

ER -

Nanoassembly of perovskite-based photocatalysts in a nanoconfined system for photocatalytic H₂ production under visible light

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