A review on recent advances in the design and structure-activity correlation of TiO2-based photocatalysts for solar hydrogen production

Energy Advances, Journal Year: 2024, Volume and Issue: 3(7), P. 1472 - 1504

Published: Jan. 1, 2024

The recent progress in visible light driven photocatalysis by describing the integration of TiO 2 with variety materials, and how it helps tailoring electronic, structural optical properties towards improved solar H production activity.

Language: Английский

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Photothermal Material‐Based Solar‐Driven Cogeneration of Water and Electricity: An Efficient and Promising Technology

Small, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 19, 2025

Abstract With the increasing demand for fresh‐water and electricity in modern society, various technologies are being explored to obtain electricity. Due advances materials science, solar‐driven interfacial evaporation (SDIE) systems have attracted widespread attention because they require only solar energy, possess a high rate little pollution. The researchers combined energy harvesting measures into system output electricity, further improving utilization. However, more in‐depth research review remain on using SDIE efficient water‐electricity cogeneration. Therefore, mechanisms of different photothermal that utilize produce thermal first summarized this paper. Subsequently, mechanism application thermal, mechanical, chemical, electrical power cogeneration discussed. Concurrently, vital mathematical equations widely used simulation methods performance evaluation practical applications presented. design operation based analyzed summarized. Based understanding these aspects, future development direction is proposed address problems faced basic applications.

Language: Английский

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Role of Metal Cocatalysts in the Photocatalytic Production of Hydrogen from Water Revisited

Energy & Fuels, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 29, 2025

The use of photocatalysts to promote the production molecular hydrogen from water, following so-called water splitting reaction, continues be a promising route for green fuels. basis this photocatalysis is photoexcitation electrons valence band semiconductors their conduction band, which they can transferred chemical reactants, protons in case reduction reaction. mechanism by such process takes place has been studied extensively using titanium oxide, simple material that fulfills most requirements splitting. However, with TiO2 tends highly inefficient; cocatalyst, commonly late transition metal (Au, Pt) nanoparticle form, needs added facilitate H2. widely believed help scavenging excited semiconductor order prevent recombination accompanying hole formed step cancels initial photon absorption and competes photolytic reduction. Here we review analyze argue an alternative explanation, role atomic atoms produced proton on surface instead. First, summarize what known about electronic structure these how levels need line up feasible. Next, current understanding dynamics steps associated photons, de-excitation via electron–hole pair fluorescence decay, transitions lead reduction, contrast those rates required produce hydrogen. section addresses changes introduced addition comparatively evaluating its as either electron scavenger or promoter atoms. A discussion viable mechanisms latter pathway included. Finally, briefly mention other aspects photocatalysis, including possible promotion H2 visible light resonant excitation plasmon Au nanoparticles, single-metal atom catalysts yolk–shell nanostructures, organic molecules. We end brief personal perspective generality concepts Critical Review.

Language: Английский

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Strategic integration of phase ratio optimization and thin film approach on Degussa P25 for synergistic enhancement of solar photocatalytic hydrogen evolution

Optical Materials, Journal Year: 2025, Volume and Issue: 160, P. 116782 - 116782

Published: Feb. 6, 2025

Language: Английский

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Silver-modified Bi2WO6 nanosheets for efficient hydrogen production via piezo-photo-catalysis

Surfaces and Interfaces, Journal Year: 2025, Volume and Issue: unknown, P. 106263 - 106263

Published: March 1, 2025

Language: Английский

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Smart membranes - Shaping next generation of membrane materials: A review

Sustainable materials and technologies, Journal Year: 2025, Volume and Issue: unknown, P. e01423 - e01423

Published: May 1, 2025

Language: Английский

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α-Ag2WO4/g-C3N4: investigation of the synthesis medium on composite properties and H2 evolution under simulated sunlight

Environmental Research, Journal Year: 2025, Volume and Issue: unknown, P. 121514 - 121514

Published: April 1, 2025

Language: Английский

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Enabling high-efficiency plasmon-induced visible-light-driven reduction of hexavalent chromium with Au-TiO2/Shewanella biohybrid

Applied Surface Science, Journal Year: 2024, Volume and Issue: 684, P. 161822 - 161822

Published: Nov. 17, 2024

Language: Английский

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Impact of Au on the transition temperature and photocatalytic activity of TiO2

Journal of Photochemistry and Photobiology A Chemistry, Journal Year: 2024, Volume and Issue: 456, P. 115848 - 115848

Published: June 20, 2024

The effect of gold (Au) addition on the anatase to rutile transition temperature (ART) titanium dioxide (TiO2) is investigated. Concentrations 2 %, 4 8 % and 16 mol. Au have been synthesised via a sol–gel technique calcined at various temperatures (500–900 °C). inclusion improves ART 700 °C, maintaining 44.5 content for Au. Density functional theory studies indicated that in phase results considerable lattice distortions, while 4d states occupied Ti 3d orbitals contribute valence-conduction band energy gap upon doping. However, no sign substitution was observed experimental analysis. Instead, we demonstrate actual structure well described by nanoparticles deposited present detailed DFT description gold-modified (1 0 1). All Au-TiO2 samples exhibit reduced photocatalytic degradation properties compared control TiO2 500 °C. after calcining 600 °C increases activity from 49 61 an optimal concentration Au-TiO2. modification titania with does push higher. this comes cost 1,4-dioxane degradation, unmodified sample having better overall activity.

Language: Английский

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Anchoring AuCu alloy nanoparticles on TiO2 nanosheets: exploiting synergistic effects and directed electron transfer for enhanced photocatalytic H2 evolution

Ceramics International, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 1, 2024

Language: Английский

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