Integrating surface plasmon resonance and slow photon effects in nanoporous anodic alumina photonic crystals for photocatalysis
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2019
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Royal Society of Chemistry (RSC)
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This study explores the potential of gold-coated titania-functionalized nanoporous anodic alumina distributed Bragg reflectors (Au-TiO2-NAA-DBRs) as platforms to enhance photocatalytic reactions by integrating “slow photons” and surface plasmon resonance (SPR). The photocatalytic degradation rate of methylene blue – a model organic compound with a well-defined absorption band in the visible spectral region – by these composite photonic crystals (PCs) upon visible-NIR light irradiation is used as an indicator to identify coupling effects between the “slow photon” effect and SPR. Our study demonstrates that the photocatalytic enhancement in Au-TiO2-NAA-DBRs is strongly associated with “slow photon” effect, while the contribution of SPR to the overall photocatalytic enhancement is weak due to the localized generation of surface plasmons on the top surface of the composite PC structure. Photocatalytic enhancement is optimal when the characteristic photonic stopband of these PCs partially o...verlaps with the absorption band of methylene blue, which results in edges being positioned away from the absorption maximum of the organic dye. The overall photocatalytic degradation for methylene blue is also correlated to the type of noble metal coating and the geometric features of the PC structures. These results establish a rationale for further development of noble metal-coated NAA-based hybrid plasmonic–photonic crystal photocatalyst platforms to optimally integrate “slow photons” and SPR for enhancing the efficiency of photocatalytic reactions and other light harvesting applications.
Source:
Catalysis Science & Technology, 2019, 9, 12, 3158-3176Publisher:
- Royal Society of Chemistry (RSC)
Funding / projects:
- Australian Research Council (ARC) - CE140100003
- School of Chemical Engineering, the University of Adelaide (UoA)
- Institute for Photonics and Advanced Sensing (IPAS)
- ARC Centre of Excellence for Nanoscale BioPhotonics (CNBP)
Note:
- The peer-reviewed version: http://cer.ihtm.bg.ac.rs/handle/123456789/3008
DOI: 10.1039/C9CY00627C
ISSN: 2044-4753; 2044-4761
WoS: 000471908600012
Scopus: 2-s2.0-85067701454
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IHTMTY - JOUR AU - Lim, Siew Yee AU - Law, Cheryl Suwen AU - Liu, Lina AU - Marković, Marijana AU - Abell, Andrew D. AU - Santos, Abel PY - 2019 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/3007 AB - This study explores the potential of gold-coated titania-functionalized nanoporous anodic alumina distributed Bragg reflectors (Au-TiO2-NAA-DBRs) as platforms to enhance photocatalytic reactions by integrating “slow photons” and surface plasmon resonance (SPR). The photocatalytic degradation rate of methylene blue – a model organic compound with a well-defined absorption band in the visible spectral region – by these composite photonic crystals (PCs) upon visible-NIR light irradiation is used as an indicator to identify coupling effects between the “slow photon” effect and SPR. Our study demonstrates that the photocatalytic enhancement in Au-TiO2-NAA-DBRs is strongly associated with “slow photon” effect, while the contribution of SPR to the overall photocatalytic enhancement is weak due to the localized generation of surface plasmons on the top surface of the composite PC structure. Photocatalytic enhancement is optimal when the characteristic photonic stopband of these PCs partially overlaps with the absorption band of methylene blue, which results in edges being positioned away from the absorption maximum of the organic dye. The overall photocatalytic degradation for methylene blue is also correlated to the type of noble metal coating and the geometric features of the PC structures. These results establish a rationale for further development of noble metal-coated NAA-based hybrid plasmonic–photonic crystal photocatalyst platforms to optimally integrate “slow photons” and SPR for enhancing the efficiency of photocatalytic reactions and other light harvesting applications. PB - Royal Society of Chemistry (RSC) T2 - Catalysis Science & Technology T1 - Integrating surface plasmon resonance and slow photon effects in nanoporous anodic alumina photonic crystals for photocatalysis VL - 9 IS - 12 SP - 3158 EP - 3176 DO - 10.1039/C9CY00627C ER -
@article{ author = "Lim, Siew Yee and Law, Cheryl Suwen and Liu, Lina and Marković, Marijana and Abell, Andrew D. and Santos, Abel", year = "2019", abstract = "This study explores the potential of gold-coated titania-functionalized nanoporous anodic alumina distributed Bragg reflectors (Au-TiO2-NAA-DBRs) as platforms to enhance photocatalytic reactions by integrating “slow photons” and surface plasmon resonance (SPR). The photocatalytic degradation rate of methylene blue – a model organic compound with a well-defined absorption band in the visible spectral region – by these composite photonic crystals (PCs) upon visible-NIR light irradiation is used as an indicator to identify coupling effects between the “slow photon” effect and SPR. Our study demonstrates that the photocatalytic enhancement in Au-TiO2-NAA-DBRs is strongly associated with “slow photon” effect, while the contribution of SPR to the overall photocatalytic enhancement is weak due to the localized generation of surface plasmons on the top surface of the composite PC structure. Photocatalytic enhancement is optimal when the characteristic photonic stopband of these PCs partially overlaps with the absorption band of methylene blue, which results in edges being positioned away from the absorption maximum of the organic dye. The overall photocatalytic degradation for methylene blue is also correlated to the type of noble metal coating and the geometric features of the PC structures. These results establish a rationale for further development of noble metal-coated NAA-based hybrid plasmonic–photonic crystal photocatalyst platforms to optimally integrate “slow photons” and SPR for enhancing the efficiency of photocatalytic reactions and other light harvesting applications.", publisher = "Royal Society of Chemistry (RSC)", journal = "Catalysis Science & Technology", title = "Integrating surface plasmon resonance and slow photon effects in nanoporous anodic alumina photonic crystals for photocatalysis", volume = "9", number = "12", pages = "3158-3176", doi = "10.1039/C9CY00627C" }
Lim, S. Y., Law, C. S., Liu, L., Marković, M., Abell, A. D.,& Santos, A.. (2019). Integrating surface plasmon resonance and slow photon effects in nanoporous anodic alumina photonic crystals for photocatalysis. in Catalysis Science & Technology Royal Society of Chemistry (RSC)., 9(12), 3158-3176. https://doi.org/10.1039/C9CY00627C
Lim SY, Law CS, Liu L, Marković M, Abell AD, Santos A. Integrating surface plasmon resonance and slow photon effects in nanoporous anodic alumina photonic crystals for photocatalysis. in Catalysis Science & Technology. 2019;9(12):3158-3176. doi:10.1039/C9CY00627C .
Lim, Siew Yee, Law, Cheryl Suwen, Liu, Lina, Marković, Marijana, Abell, Andrew D., Santos, Abel, "Integrating surface plasmon resonance and slow photon effects in nanoporous anodic alumina photonic crystals for photocatalysis" in Catalysis Science & Technology, 9, no. 12 (2019):3158-3176, https://doi.org/10.1039/C9CY00627C . .