Journal ArticleDOI
Plasmonic-metal nanostructures for efficient conversion of solar to chemical energy
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TLDR
Plasmon-enhanced water splitting on composite photocatalysts containing semiconductor and plasmonic-metal building blocks is focused on, and recently reported plasMon-mediated photocatallytic reactions on plAsmonic nanostructures of noble metals are discussed.Abstract:
Recent years have seen a renewed interest in the harvesting and conversion of solar energy. Among various technologies, the direct conversion of solar to chemical energy using photocatalysts has received significant attention. Although heterogeneous photocatalysts are almost exclusively semiconductors, it has been demonstrated recently that plasmonic nanostructures of noble metals (mainly silver and gold) also show significant promise. Here we review recent progress in using plasmonic metallic nanostructures in the field of photocatalysis. We focus on plasmon-enhanced water splitting on composite photocatalysts containing semiconductor and plasmonic-metal building blocks, and recently reported plasmon-mediated photocatalytic reactions on plasmonic nanostructures of noble metals. We also discuss the areas where major advancements are needed to move the field of plasmon-mediated photocatalysis forward.read more
Citations
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Journal ArticleDOI
Prolonged Hot Electron Dynamics in Plasmonic‐Metal/Semiconductor Heterostructures with Implications for Solar Photocatalysis
Joseph S. DuChene,Brendan C. Sweeny,Aaron C. Johnston-Peck,Dong Su,Eric A. Stach,Wei David Wei +5 more
TL;DR: Electrochemical techniques were employed to elucidate the mechanics of plasmon-mediated electron transfer within Au/TiO2 heterostructures under visible-light (λ>515 nm) irradiation in solution, and discovered that these transferred electrons displayed excited-state lifetimes two orders of magnitude longer than those of electrons photogenerated directly within TiO2 via UV excitation.
Journal ArticleDOI
Controlling energy flow in multimetallic nanostructures for plasmonic catalysis
TL;DR: The utility of hybrid core-shell nanostructures in which a core plasmonic metal harvests visible-light photons can selectively channel that energy into catalytically active centres on the nanostructure shell is demonstrated.
Journal ArticleDOI
Plasmonic metal–semiconductor photocatalysts and photoelectrochemical cells: a review
TL;DR: The applications of plasmonic photocatalysts and photoelectrochemical cells in solar water splitting, carbon dioxide reduction and environmental pollutant decomposition are highlighted.
Journal ArticleDOI
Versatile Graphene-Promoting Photocatalytic Performance of Semiconductors: Basic Principles, Synthesis, Solar Energy Conversion, and Environmental Applications
TL;DR: Graphene-semiconductor nanocomposites, considered as a kind of most promising photocatalysts, have shown remarkable performance and drawn signifi cant attention in the fi eld of photo-driven chemical conversion using solar energy, due to the unique physicochemical properties of graphene as discussed by the authors.
Journal ArticleDOI
Hydrophobic Interactions Modulate Self-Assembly of Nanoparticles
Ana Sánchez-Iglesias,Marek Grzelczak,Marek Grzelczak,Thomas Altantzis,Bart Goris,Jorge Pérez-Juste,Sara Bals,Gustaaf Van Tendeloo,Stephen H. Donaldson,Bradley F. Chmelka,Jacob N. Israelachvili,Luis M. Liz-Marzán,Luis M. Liz-Marzán +12 more
TL;DR: A general methodology for solvent-induced, reversible self-assembly of gold nanoparticles into 3D clusters with well-controlled sizes is described and a theoretical description of the process confirmed that hydrophobic interactions are the main driving force behind nanoparticle aggregation.
References
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Journal ArticleDOI
Electrochemical Photolysis of Water at a Semiconductor Electrode
Akira Fujishima,Kenichi Honda +1 more
TL;DR: Water photolysis is investigated by exploiting the fact that water is transparent to visible light and cannot be decomposed directly, but only by radiation with wavelengths shorter than 190 nm.
Journal ArticleDOI
Probing Single Molecules and Single Nanoparticles by Surface-Enhanced Raman Scattering
Shuming Nie,Steven R. Emory +1 more
TL;DR: In this article, surface-enhanced Raman scattering was used to detect single molecules and single nanoparticles at room temperature with the use of surface enhanced Raman, and the intrinsic Raman enhancement factors were on the order of 10 14 to 10 15, much larger than the ensemble-averaged values derived from conventional measurements.
Journal ArticleDOI
The Optical Properties of Metal Nanoparticles: The Influence of Size, Shape, and Dielectric Environment
TL;DR: In this paper, the authors describe recent progress in the theory of nanoparticle optical properties, particularly methods for solving Maxwell's equations for light scattering from particles of arbitrary shape in a complex environment.
Journal ArticleDOI
Heterogeneous photocatalyst materials for water splitting
Akihiko Kudo,Yugo Miseki +1 more
TL;DR: This critical review shows the basis of photocatalytic water splitting and experimental points, and surveys heterogeneous photocatalyst materials for water splitting into H2 and O2, and H2 or O2 evolution from an aqueous solution containing a sacrificial reagent.
Journal Article
Photoelectrochemical cells : Materials for clean energy
TL;DR: In this paper, the authors look into the historical background, and present status and development prospects for photoelectrochemical cells, based on nanocrystalline materials and conducting polymer films.
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