Silver-Decorated TiO2 Inverse Opal Structure for Visible Light-Induced Photocatalytic Degradation of Organic Pollutants and Hydrogen Evolution
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Silver-Decorated TiO2 Inverse Opal Structure for Visible Light-Induced Photocatalytic Degradation of Organic Pollutants and Hydrogen Evolution. / Temerov, Filipp; Pham, Khai; Juuti, Paxton; Mäkelä, Jyrki M.; Grachova, Elena V.; Kumar, Santosh; Eslava, Salvador; Saarinen, Jarkko J.
In: ACS Applied Materials & Interfaces, Vol. 12, No. 37, 16.09.2020, p. 41200-41210.Research output: Contribution to journal › Article › Scientific › peer-review
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TY - JOUR
T1 - Silver-Decorated TiO2 Inverse Opal Structure for Visible Light-Induced Photocatalytic Degradation of Organic Pollutants and Hydrogen Evolution
AU - Temerov, Filipp
AU - Pham, Khai
AU - Juuti, Paxton
AU - Mäkelä, Jyrki M.
AU - Grachova, Elena V.
AU - Kumar, Santosh
AU - Eslava, Salvador
AU - Saarinen, Jarkko J.
N1 - EXT="Saarinen, Jarkko J."
PY - 2020/9/16
Y1 - 2020/9/16
N2 - TiO2 inverse opal (TIO) structures were prepared by the conventional wet chemical method, resulting in well-formed structures for photocatalytic activity. The obtained structures were functionalized with liquid flame spray-deposited silver nanoparticles (AgNPs). The nanocomposites of TIO and AgNPs were extensively characterized by various spectroscopies such as UV, Raman, X-ray diffraction, energy-dispersive spectroscopy, and X-ray photoelectron spectroscopy combined with microscopic methods such as scanning electron microscopy, transmission electron microscopy (TEM), and high-resolution TEM. The characterization confirmed that high-quality heterostructures had been fabricated with evenly and uniformly distributed AgNPs. Fabrication of anatase TiO2 was confirmed, and formation of AgNPs was verified with surface plasmon resonant properties. The photocatalytic activity results measured in the gas phase showed that deposition of AgNPs increases photocatalytic activity both under UVA and visible light excitation; moreover, enhanced hydrogen evolution was demonstrated under visible light.
AB - TiO2 inverse opal (TIO) structures were prepared by the conventional wet chemical method, resulting in well-formed structures for photocatalytic activity. The obtained structures were functionalized with liquid flame spray-deposited silver nanoparticles (AgNPs). The nanocomposites of TIO and AgNPs were extensively characterized by various spectroscopies such as UV, Raman, X-ray diffraction, energy-dispersive spectroscopy, and X-ray photoelectron spectroscopy combined with microscopic methods such as scanning electron microscopy, transmission electron microscopy (TEM), and high-resolution TEM. The characterization confirmed that high-quality heterostructures had been fabricated with evenly and uniformly distributed AgNPs. Fabrication of anatase TiO2 was confirmed, and formation of AgNPs was verified with surface plasmon resonant properties. The photocatalytic activity results measured in the gas phase showed that deposition of AgNPs increases photocatalytic activity both under UVA and visible light excitation; moreover, enhanced hydrogen evolution was demonstrated under visible light.
KW - hydrogen evolution
KW - liquid flame spray
KW - photocatalysis
KW - silver nanoparticles
KW - TiO2 inverse opal
U2 - 10.1021/acsami.0c08624
DO - 10.1021/acsami.0c08624
M3 - Article
VL - 12
SP - 41200
EP - 41210
JO - ACS Applied Materials & Interfaces
JF - ACS Applied Materials & Interfaces
SN - 1944-8244
IS - 37
ER -