Synthesis and Activity of Plasmonic Photocatalysts

Lou, Zaizhu; Wang, Zeyan; Huang, Baibiao; Dai, Ying

doi:10.1002/cctc.201402261

Cited by 100 publications

(92 citation statements)

References 165 publications

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“…The intragap states present in black TiO 2 play a key role in promoting both DET and PRET mechanisms, as recently demonstrated by Naldoni et al [92]. Enhancement by SPR has been adopted in many application fields of photocatalysis [93], including mineralization of organic pollutants and H 2 generation. Priebe et al demonstrated how various parameters affect the performance of plasmonic Au/TiO 2 materials in H 2 production from aqueous MeOH solution under visible light [94].…”

Section: Increasing Activity Under Visible Light: Self-doping Vs Surfmentioning

confidence: 93%

H2 production by photocatalytic reforming of oxygenated compounds using TiO2-based materials

Montini

Monai

Beltram

et al. 2016

Materials Science in Semiconductor Processing

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Section: Increasing Activity Under Visible Light: Self-doping Vs Surfmentioning

confidence: 93%

H2 production by photocatalytic reforming of oxygenated compounds using TiO2-based materials

Montini

Monai

Beltram

et al. 2016

Materials Science in Semiconductor Processing

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“…Possible alternatives might be Cu-and Al-based plasmonic photocatalysts. Also nonmetal-based plasmonic photocatalysts, as reviewed in [205], might set the path for low-cost materials as effective photocatalysts. It has to be pointed out that photocatalytic stability is considered one main challenge for efficient photocatalysts and is investigated by various research groups besides the targeted high enhancements in photocatalytic activity.…”

Section: Discussionmentioning

confidence: 99%

Surface Plasmon-Assisted Solar Energy Conversion

Dodekatos

Schünemann

Tüysüz

2015

Topics in Current Chemistry

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The utilization of localized surface plasmon resonance (LSPR) from plasmonic noble metals in combination with semiconductors promises great improvements for visible light-driven photocatalysis, in particular for energy conversion. This review summarizes the basic principles of plasmonic photocatalysis, giving a comprehensive overview about the proposed mechanisms for enhancing the performance of photocatalytically active semiconductors with plasmonic devices and their applications for surface plasmon-assisted solar energy conversion. The main focus is on gold and, to a lesser extent, silver nanoparticles in combination with titania as semiconductor and their usage as active plasmonic photocatalysts. Recent advances in water splitting, hydrogen generation with sacrificial organic compounds, and CO2 reduction to hydrocarbons for solar fuel production are highlighted. Finally, further improvements for plasmonic photocatalysts, regarding performance, stability, and economic feasibility, are discussed for surface plasmon-assisted solar energy conversion.

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“…If the produced composite incorporates into an appropriate matrix like SBA15, much more active sites can be exposed originating from the decreased particle size and a large amount of pollutant molecules tend to gather around active sites as a result of the strengthened adsorption ability from support, further benefiting photocatalytic processes [19][20][21][22]. The deposition of noble metal nanoparticles on surface of semiconductors is another efficient manner to promote photocatalytic efficiency through the formation of schottky junction at the metalsemiconductor interfaces and the LSPR effect by metallic noble elements [23][24][25]. The former is able to induce the directional migration of electrons and hereby causes the separation of charge carriers [26,27].…”

Section: Introductionmentioning

confidence: 99%

Fabrication, characterization, and visible-light photocatalytic performance of ternary plasmonic composites

Chang

Sun

Wang

et al. 2016

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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h i g h l i g h t s• W-Ti-SBA15 composites with low TiO 2 /SiO 2 mass ratios and their Agcontained analogs were fabricated.• These composites showed enhanced photocatalytic performance in comparison to those with high TiO 2 /SiO 2 mass ratios.• Photocatalysis mechanism of these Ag-W-Ti-SBA15 plasmonic composites was proposed. t r a c tA group of mesoporous WO 3 -TiO 2 -contained SBA15 composites (W-Ti-SBA15) and their Ag-contained plasmonic analogs were fabricated and then systematically characterized by a collection of analytical techniques. Original mesoporous structures with highly ordered channels were well-maintained and WO 3 -TiO 2 could form spherical clusters that were gradually reduced in size accompanying with the decrease of TiO 2 /SiO 2 mass ratios. Deposited Ag species were confirmed as zero-valence Ag by X-ray photoelectron spectroscopy analysis and exerted almost no effect on the morphology, microstructure, and textural but optical property, by which the visible-light harvesting ability of composites was remarkably strengthened owing to the localized surface plasmonic resonance (LSPR) induced by the metallic Ag. Under visible-light irradiation, W-Ti-SBA15 composites showed satisfactory photocatalytic performance that could be further enhanced by using their Ag-contained ternary plasmonic analogs. The enhancement of photocatalytic efficiency was mainly attributed to the favorable mesoporous morphology, the suitable band alignment, and the LSPR effect. Eventually, a possible photocatalysis mechanism was primarily proposed on the base of reactive radical species trapping experiments.

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Synthesis and Activity of Plasmonic Photocatalysts

Cited by 100 publications

References 165 publications

H2 production by photocatalytic reforming of oxygenated compounds using TiO2-based materials

H2 production by photocatalytic reforming of oxygenated compounds using TiO2-based materials

Surface Plasmon-Assisted Solar Energy Conversion

Fabrication, characterization, and visible-light photocatalytic performance of ternary plasmonic composites

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