Metal nanoparticles in photocatalysis: Advances and challenges

Nasrallah, Houssein; Douma, Fatima; Hamoud, Houeida Issa; El‐Roz, Mohamad

doi:10.1016/b978-0-12-823007-7.00019-5

Cited by 5 publications

(3 citation statements)

References 95 publications

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“…Metal‐based NPs can be used in photo(electro)catalytic transformations as light absorbers (out of the scope of this review), [ 132 ] catalysts or photocatalysts (i.e., the NPs are able to both absorb light and drive the catalytic process). [ 133 ] In photo(electro)catalytic systems, the charge will be provided by the light absorbing unit upon light‐driven charge separation. This is a complex process that starts with the excitation of one electron from the highest occupied level (HOMO for molecules, valence band for semiconductors) to the lowest unoccupied one (LUMO for molecules, conduction band for semiconductors).…”

Section: Nps Surface‐functionalization In Photo(electro)catalysismentioning

confidence: 99%

Surface‐Functionalized Nanoparticles as Catalysts for Artificial Photosynthesis

Martí

Mallón

Romero

et al. 2023

Advanced Energy Materials

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Analogously to enzymatic catalysis, where the active metal sites and their environment are controlled by protein residues, the catalytic properties of metal nanoparticles (NPs) can be tuned by carefully selecting their surface-coordinated species. In artificial photosynthesis, surface-functionalization emerged in the last decade, grounded on the development of reliable methods for tailored synthesis, advanced characterization and theoretical modeling of metal NPs, altogether with the aim of transferring to the nanoscale the mechanistic knowledge acquired from molecular complexes. Metal NPs surface-functionalization modulates the energetics of key catalytic intermediates, introduces second coordination sphere effects, influences the catalyst-electrolyte interface, and determines the metal NPs surface coverage and, accordingly, the number of accessible active sites. In photoactivated systems, metal NPs surface-functionalization may play a key role in modulating the charge transfers and recombination processes between the light absorber and the active sites and in the light absorber itself. Thus, after a presentation of the most relevant synthetic methods to produce well-defined surface-functionalized metal NPs, a critical analysis of why the above effects are the cornerstone in enhancing their catalytic performance in the key processes of artificial photosynthesis, namely the oxygen evolution reaction, the hydrogen evolution reaction, and the CO 2 reduction reaction, is given.

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Section: Nps Surface‐functionalization In Photo(electro)catalysismentioning

confidence: 99%

Surface‐Functionalized Nanoparticles as Catalysts for Artificial Photosynthesis

Martí

Mallón

Romero

et al. 2023

Advanced Energy Materials

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“…Through the Schottky junction at the MNPs-MOF interface, photogenerated electrons in the conduction band (CB) of MOFs can transfer to MNPs as co-catalysts, improving the photocatalytic performance of MNPs@MOFs nanocomposite. 37,44,45,47,[50][51][52][53] Sahoo et al successfully synthesized a series of ternary Ag@Ag 3 VO 4 / ZnCr LDH plasmonic photocatalysts using an in situ hydrothermal followed by a co-precipitation method. The Ag 3 VO 4 nanoparticles self-assemble on the brucite surface of the LDH material, resulting in a partial reduction of Ag + to Ag.…”

Section: Introductionmentioning

confidence: 99%

Ag@MUT-16 nanocomposite as a Fenton-like and plasmonic photocatalyst for degradation of Quinoline Yellow under visible light

Ghasemzadeh,

Akhbari,

Kawata

2024

Dalton Trans.

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“…However, the use of noble metal nanoparticles as co-catalysts changes the adsorption properties and transfers the hydrogen evolution reaction from the semiconductor's surface to the surface of the nanoparticles. 26 In this way, the production of H 2 and O 2 is spatially separated. These aspects lead to the application of noble metal nanoparticles as an eagerly selected approach for increasing the efficiency of H 2 production, which is explored up-to-date.…”

Section: Introductionmentioning

confidence: 99%