Enhancing CO<sub>2</sub> photoreduction over ZIF-based reticular materials by morphology control of Au plasmonic nanoparticles

Becerra, Jorge; Gopalakrishnan, Vishnu Nair; Quach, Toan-Anh; Do, Trong‐On

doi:10.1039/d1se01890f

Cited by 12 publications

(12 citation statements)

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“…[75] Furthermore, the measured apparent quantum yield (AQY) at 420 nm was calculated to be around 3.7 %, which is a promising value reported in the literature so far. [30,75] The efficient separation of electron-hole pairs for the nanocomposites was investigated by photocurrent experiments as shown in Figure 6A. Both samples (i. e., Au-20/ZIF and Au-40/ ZIF) exhibited a quick response to the light, but the photocurrent of Au-40/ZIF was slightly higher than that of Au-20/ZIF, suggesting that Au-40/ZIF has more efficient separation of the photogenerated electron-hole pairs.…”

Section: Chemsuschemmentioning

confidence: 63%

“…The functionalization of Au PNPs has been widely studied in the past for a wide range of materials and applications. [31,39] One of the most common capping agents adopted to stabilize Au PNPs is polyvinyl pyrrolidone (PVP) due to its stability and facile synthesis. [48] The interaction between Au and PVP is mainly governed by van der Waals interactions, which decreases the injection of electrons into the semiconductor material during the photocatalytic reaction.…”

Section: Resultsmentioning

confidence: 99%

“…The functionalization of Au PNPs has been widely studied in the past for a wide range of materials and applications [31,39] . One of the most common capping agents adopted to stabilize Au PNPs is polyvinyl pyrrolidone (PVP) due to its stability and facile synthesis [48] .…”

Section: Resultsmentioning

confidence: 99%

“…[35][36][37] Recently, numerous efforts have demonstrated that localized surface plasmon resonance (LSPR) can enable plasmonic metal nanoparticles (PNPs) to harvest visible light for photocatalytic CO 2 reduction. [10,38,39] Gold nanoparticles have mainly been investigated to facilitate photocatalytic CO 2 reduction in the visible light region. [30,31,40,41] The coupling between plasmonic Au NPs and ZIF-67 is expected to greatly enhance the photocatalytic performance during CO 2 reduction.…”

Section: Introductionmentioning

confidence: 99%

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Chemically Bonded Plasmonic Triazole‐Functionalized Au/Zeolitic Imidazole Framework (ZIF‐67) for Enhanced CO₂ Photoreduction

et al. 2022

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The design of functionalized metallic nanoparticles is considered an emerging technique to ensure the interaction between metal and semiconductor material. In the literature, this interface interaction is mainly governed by electrostatic or van der Waals forces, limiting the injection of electrons under light irradiation. To enhance the transfer of electrons between two compounds, close contact or chemical bonding at the interface is required. Herein, a new approach was reported for the synthesis of chemically bonded plasmonic Au NPs/ZIF-67 nanocomposites. The structure of ZIF-67 was grown on the surface of functionalized plasmonic Au NPs using 1H-1,2,4-triazole-3thiol as the capping agent, which acted as both stabilizer of Au nanoparticles and a molecular linker for ZIF-67 formation. As a result, the synthesized material exhibited outstanding photocatalytic CO 2 reduction with a methanol production rate of 2.70 mmol h À 1 g À 1 cat under sunlight irradiation. This work emphasizes that the diligent use of capping agents, with suitable functional groups, could facilitate the formation of intimate heterostructure for enhanced photocatalytic CO 2 reduction.

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Section: Chemsuschemmentioning

confidence: 63%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Chemically Bonded Plasmonic Triazole‐Functionalized Au/Zeolitic Imidazole Framework (ZIF‐67) for Enhanced CO₂ Photoreduction

et al. 2022

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“…Plasmonic metal nanoparticles with high light absorptivity have been shown to represent a new class of photocatalysts with features that differ dramatically from those of typical semiconductor photocatalysts. Plasmonic nanoparticles have unique optical, electrical, and thermal properties [99][100][101][102][103][104][105][106][107]. In this section, we focused on plasmonic photocatalysts for the photoreduction of CO 2 to methanol.…”

Section: Photocatalysts With Plasmonic Propertiesmentioning

confidence: 99%

Recent Advances of Photocatalytic Hydrogenation of CO2 to Methanol

2022

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Constantly increasing hydrocarbon fuel combustion along with high levels of carbon dioxide emissions has given rise to a global energy crisis and environmental alterations. Photocatalysis is an effective technique for addressing this energy and environmental crisis. Clean and renewable solar energy is a very favourable path for photocatalytic CO2 reduction to value-added products to tackle problems of energy and the environment. The synthesis of various products such as CH4, CH3OH, CO, EtOH, etc., has been expanded through the photocatalytic reduction of CO2. Among these products, methanol is one of the most important and highly versatile chemicals widely used in industry and in day-to-day life. This review emphasizes the recent progress of photocatalytic CO2 hydrogenation to CH3OH. In particular, Metal organic frameworks (MOFs), mixed-metal oxide, carbon, TiO2 and plasmonic-based nanomaterials are discussed for the photocatalytic reduction of CO2 to methanol. Finally, a summary and perspectives on this emerging field are provided.

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Bifunctional Au@UiO‐67‐bpy‐Cu Plasmonic Nanostructures for the Solar‐Driven CO₂ Reduction to Methanol

Cepero‐Rodríguez,

Sousa‐Castillo,

Besteiro

et al. 2024

Advanced Energy Materials

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Photocatalytic CO2 reduction is gaining more interest as a sustainable route to produce methanol, a key starting material in the synthesis of many chemicals and a potential energy carrier. Here, metal‐organic frameworks (MOFs) are used as platforms to integrate plasmonic Au nanospheres and Cu active centers in joint bifunctional hybrid photocatalysts. The methodology followed in obtaining stable Au@UiO‐67‐bpy‐Cu MOFs is based on synthesizing Au@UiO‐67‐bypiridine (bpy) MOFs through a core‐shell procedure, and then modifying them with Cu ions after their coordination with the bpy ligands. This gains the final structure regular coverage of active metal centers that can be excited by the interaction with the plasmonic nanospheres. In the absence of Au, the system demonstrates selectivity toward the formation of methanol under hole scavenger‐free conditions owing to the excitation of the bpy‐Cu complex with visible light. The obtained yield duplicates upon Au nanospheres incorporation as a result of the injection of hot electrons, excited by surface‐mediated intraband processes, to the bpy‐Cu states, thus increasing their CO2 reduction efficiency. Additionally, the catalytic activity remains stable during four consecutive cycles.

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Enhancing CO₂ photoreduction over ZIF-based reticular materials by morphology control of Au plasmonic nanoparticles

Abstract: Zeolitic imidazolate frameworks (ZIFs) are promising photocatalysts for CO2 reduction due to their proper energy band structure and crystalline properties. However, CO2 conversion is still low due to the serious...

Cited by 12 publications

References 48 publications

Chemically Bonded Plasmonic Triazole‐Functionalized Au/Zeolitic Imidazole Framework (ZIF‐67) for Enhanced CO₂ Photoreduction

Chemically Bonded Plasmonic Triazole‐Functionalized Au/Zeolitic Imidazole Framework (ZIF‐67) for Enhanced CO₂ Photoreduction

Recent Advances of Photocatalytic Hydrogenation of CO2 to Methanol

Bifunctional Au@UiO‐67‐bpy‐Cu Plasmonic Nanostructures for the Solar‐Driven CO₂ Reduction to Methanol

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Enhancing CO2 photoreduction over ZIF-based reticular materials by morphology control of Au plasmonic nanoparticles

Abstract: Zeolitic imidazolate frameworks (ZIFs) are promising photocatalysts for CO2 reduction due to their proper energy band structure and crystalline properties. However, CO2 conversion is still low due to the serious...

Cited by 12 publications

References 48 publications

Chemically Bonded Plasmonic Triazole‐Functionalized Au/Zeolitic Imidazole Framework (ZIF‐67) for Enhanced CO2 Photoreduction

Chemically Bonded Plasmonic Triazole‐Functionalized Au/Zeolitic Imidazole Framework (ZIF‐67) for Enhanced CO2 Photoreduction

Recent Advances of Photocatalytic Hydrogenation of CO2 to Methanol

Bifunctional Au@UiO‐67‐bpy‐Cu Plasmonic Nanostructures for the Solar‐Driven CO2 Reduction to Methanol

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Product

Resources

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Enhancing CO₂ photoreduction over ZIF-based reticular materials by morphology control of Au plasmonic nanoparticles

Chemically Bonded Plasmonic Triazole‐Functionalized Au/Zeolitic Imidazole Framework (ZIF‐67) for Enhanced CO₂ Photoreduction

Chemically Bonded Plasmonic Triazole‐Functionalized Au/Zeolitic Imidazole Framework (ZIF‐67) for Enhanced CO₂ Photoreduction

Bifunctional Au@UiO‐67‐bpy‐Cu Plasmonic Nanostructures for the Solar‐Driven CO₂ Reduction to Methanol