Single-Particle Fluorescence Spectroscopy for Elucidating Charge Transfer and Catalytic Mechanisms on Nanophotocatalysts

ACS Nano, Journal Year: 2024, Volume and Issue: 18(44), P. 30247 - 30268

Published: Oct. 24, 2024

Photocatalysis is a cost-effective approach to producing renewable energy. A thorough comprehension of carrier separation at the micronano level crucial for enhancing photochemical conversion capabilities photocatalysts. However, heterogeneity photocatalyst nanoparticles and complex charge migration processes limit profound understanding photocatalytic reaction mechanisms. By establishing precise interrelationship between microscopic properties photophysical behaviors photocatalysts, single-particle fluorescence spectroscopy can elucidate catalytic mechanism photocatalysts in situ, which provides perspectives improving efficiency. This Review primarily focuses on basic principles advantages its progress study plasmonic semiconductor photocatalysis, especially emphasizing importance mechanism, offers scientific guidance designing efficient systems. Finally, we summarize forecast future development prospects technology, insights into technological upgrading.

Language: Английский

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Size Inhomogeneity Facilitates Exciton Dissociation in Carbon Dots

Nano Letters, Journal Year: 2025, Volume and Issue: 25(6), P. 2554 - 2560

Published: Jan. 31, 2025

Organic carbon dots (CDs) exhibit tunable electronic structures and exceptional optical properties, supporting both exciton- charge-driven applications. However, the mechanisms underlying this dual functionality are poorly understood. This study establishes role of size inhomogeneity in exciton dissociation for first time. Two distinct CD types were identified, each class with a deviation. Intradot relaxation within same type CDs composes fast (∼1 ps) slow (∼tens picoseconds) component among size-deviated subpopulations. Interdot transfer between two occurs time scale 4.4 ps but is evident only when higher-energy states excited. It also facilitates dissociation, generating nearly free carriers, confirmed by EPR spectra (g-value = 2.005). These findings highlight critical energy level alignment selective excitation mediating providing key insights optimizing light emission conversion

Language: Английский

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Constructing a stable CdS/Nb2O5 Z-scheme heterojunction for efficient photocatalytic conversion of CO2

Molecular Catalysis, Journal Year: 2025, Volume and Issue: 576, P. 114930 - 114930

Published: Feb. 21, 2025

Language: Английский

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Advanced TiO2-Based Photocatalytic Systems for Water Splitting: Comprehensive Review from Fundamentals to Manufacturing

Molecules, Journal Year: 2025, Volume and Issue: 30(5), P. 1127 - 1127

Published: Feb. 28, 2025

The global imperative for clean energy solutions has positioned photocatalytic water splitting as a promising pathway sustainable hydrogen production. This review comprehensively analyzes recent advances in TiO2-based systems, focusing on materials engineering, source effects, and scale-up strategies. We recognize the advancements nanoscale architectural design, engineered heterojunction of catalysts, cocatalyst integration, which have significantly enhanced efficiency. Particular emphasis is placed crucial role chemistry system performance, analyzing how different sources-from wastewater to seawater-impact evolution rates stability. Additionally, addresses key challenges scaling up these including optimization reactor light distribution, mass transfer. Recent developments artificial intelligence-driven discovery process are discussed, along with emerging opportunities bio-hybrid systems CO2 reduction coupling. Through critical analysis, we identify fundamental propose strategic research directions advancing technology toward practical implementation. work will provide comprehensive framework exploring advanced composite developing efficient scalable multifunctional simultaneous

Language: Английский

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Visible-light-driven photodegradation of Pt-derivative anticancer drug carboplatin over La-Fe-modified SrTiO3 with simultaneous doping and enhanced Pt-photodeposited catalyst

Journal of Water Process Engineering, Journal Year: 2025, Volume and Issue: 71, P. 107387 - 107387

Published: March 1, 2025

Language: Английский

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Continuous Hydrogen Production from Sunrise to Sunset: Advancing Photocatalytic Stability Via Interface-Engineered Nanocomposite Tris-S-Triazine G-C3n4/Znin2s4 Heterostructure

Published: Jan. 1, 2025

Language: Английский

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Unveiling the Photocatalytic Potential of BiAgOS Solid Solution for Hydrogen Evolution Reaction

Nanomaterials, Journal Year: 2024, Volume and Issue: 14(23), P. 1869 - 1869

Published: Nov. 22, 2024

The growing emphasis on green energy has spurred momentum in research and development within the field of photocatalytic materials, particularly for hydrogen production. Among most abundant oxides Earth, oxychalcogenides stand out their cost-effectiveness ease synthesis. In this context, we present an investigation potential use BiAgOS as efficient photocatalyst generation. Utilizing density functional theory ab initio molecular dynamics (AIMD) simulations, computed its physical properties assessed performance. Specifically, using Heyd-Scuseria-Ernzerhof corrections, our calculations yielded appropriate electronic gap ~1.47 eV necessary driving water-splitting reaction. Additionally, obtained a very high optical absorption coefficient ~5 × 10

Language: Английский

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Nanocatalysis in Cathode Pre-lithiation for Lithium-ion Battery: Progress and Challenges

Nanoscale, Journal Year: 2024, Volume and Issue: 16(46), P. 21294 - 21308

Published: Jan. 1, 2024

This review focuses on nanocatalysis in cathode pre-lithiation, summarizes recent progress versatile nanocatalysts for efficient pre-lithiation additive decomposition and highlights future challenges directions commercialization.

Language: Английский

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