4.6 Article

Atmosphere-Dependent Electron Relaxation of the Ag-Decorated TiO2 and the Relations with Photocatalytic Properties

Related references

Note: Only part of the references are listed.
Article Nanoscience & Nanotechnology

Heteroatom Modified TiO2/Graphene Aerogel Composites by Electron Beam Irradiation in Supercapacitors

Shaqi Fu et al.

Summary: Heteroatom doping is used to generate oxygen vacancies and enhance the electrochemical properties of materials, but achieving simultaneous defect generation is challenging. In this study, TiO2 quantum dots/graphene aerogel composites were synthesized via a hydrothermal method and successfully doped with N and S atoms using electron beam irradiation. The introduced defects and heteroatom doping improved the electrochemical performance, particularly in the NT-NSG-140 sample irradiated at 140 kGy. This work provides a simple and environmentally friendly method for designing high-performance materials with heteroatoms.

ACS APPLIED NANO MATERIALS (2023)

Article Chemistry, Physical

A light-heat synergism in the sub-bandgap photocatalytic response of pristine TiO2: a study of in situ diffusion reflectance and conductance

Zhizhou Wu et al.

Summary: The present research investigates the sub-bandgap light photocatalytic response of pristine TiO2 materials and reveals the mechanism behind it. The study demonstrates that sub-bandgap light can promote the generation of electrons and holes through synergistic effects and explains the relationship between photocatalytic activity and temperature and photon energy.

PHYSICAL CHEMISTRY CHEMICAL PHYSICS (2022)

Article Chemistry, Physical

Plasmon-assisted facile selective gaseous isopropanol dehydrogenation over Ag nanocubes

Liuyang Li et al.

Summary: The study focuses on the dehydrogenation of isopropanol over monodisperse Ag nanocubes, revealing that light illumination can enhance the reaction efficiency without compromising selectivity. Factors such as reaction temperatures, light wavelengths, light intensities, and nanocube sizes are investigated to understand their influence on catalytic yields. Plasmonic non-thermal effect is found to have a low contribution to the light-induced increase in catalytic activity.

CATALYSIS SCIENCE & TECHNOLOGY (2022)

Article Multidisciplinary Sciences

Insight into the transient inactivation effect on Au/TiO2 catalyst by in-situ DRIFT and UV-vis spectroscopy

Xianwei Wang et al.

Summary: In the CO oxidation reaction over Au/TiO2, a transient inactivation effect caused by structural change of Au/TiO2 is observed, which is affected by the ratio of CO and O-2 concentrations. The electronic properties of Au particles also change during the unstable state.

NATURE COMMUNICATIONS (2022)

Review Chemistry, Multidisciplinary

Synthesis, modification and application of titanium dioxide nanoparticles: a review

Jinqi Wang et al.

Summary: This article mainly discusses the aspects of TiO2-modified nanoparticles including synthetic methods, modifications, and applications, which are of great significance for improving the performance of TiO2.

NANOSCALE (2022)

Article Chemistry, Multidisciplinary

A photoelectrochemical sensor for glutathione based on Bi2S3-modified TiO2 nanotube arrays

Mengyan Wang et al.

Summary: A novel photoelectrochemical sensor based on Bi2S3-modified TiO2 nanotube arrays was developed for the determination of glutathione. The sensor exhibited enhanced light absorption efficiency and accelerated charge transfer. It showed a sensitive response to glutathione under visible light excitation and specific bias voltage. The sensor demonstrated good stability and reproducibility, and successfully measured glutathione in actual samples.

NEW JOURNAL OF CHEMISTRY (2022)

Article Nanoscience & Nanotechnology

Highly Efficient Plasmon Induced Hot-Electron Transfer at Ag/TiO2 Interface

Jia Song et al.

Summary: This study demonstrates the high quantum efficiency of plasmonic hot-electron transfer from silver nanoparticles to TiO2 films under specific excitation conditions. The results suggest that decreasing particle sizes can enhance the efficiency of hot-electron transfer.

ACS PHOTONICS (2021)

Review Environmental Sciences

Recent progress on Ag/TiO2 photocatalysts: photocatalytic and bactericidal behaviors

Hanane Chakhtouna et al.

Summary: Doping silver nanoparticles into titanium dioxide semiconductor is an effective strategy to enhance its photocatalytic activity, prevent recombination of electron/hole pairs, and improve bactericidal performance.

ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH (2021)

Article Chemistry, Physical

The effect of Cu dopants on electron transfer to O2 and the connection with acetone photocatalytic oxidations over nano-TiO2

Baoshun Liu et al.

Summary: The study demonstrates that Cu dopants can promote electron transfer from TiO2 to oxygen, reduce the apparent activation energy of photocatalysis, alter the photocatalytic pathway. The different chemical environment of the Cu sites compared to pure TiO2 surfaces is responsible for the decrease in the E-app of photocatalysis.

PHYSICAL CHEMISTRY CHEMICAL PHYSICS (2021)

Article Chemistry, Multidisciplinary

Direct Observation of a Plasmon-Induced Hot Electron Flow in a Multimetallic Nanostructure

Lars van Turnhout et al.

NANO LETTERS (2020)

Review Chemistry, Physical

Photocatalysis with Reduced TiO2: From Black TiO2 to Cocatalyst-Free Hydrogen Production

Alberto Naldoni et al.

ACS CATALYSIS (2019)

Review Chemistry, Multidisciplinary

A critical review on TiO2 based photocatalytic CO2 reduction system: Strategies to improve efficiency

Nasir Shehzad et al.

JOURNAL OF CO2 UTILIZATION (2018)

Article Chemistry, Multidisciplinary

Positioning the Water Oxidation Reaction Sites in Plasmonic Photocatalysts

Shengyang Wang et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2017)

Review Chemistry, Physical

Surface modification and enhanced photocatalytic CO2 reduction performance of TiO2: a review

Jingxiang Low et al.

APPLIED SURFACE SCIENCE (2017)

Article Chemistry, Physical

Semiconductor Photocatalysts for Non-oxidative Coupling, Dry Reforming and Steam Reforming of Methane

Katsuya Shimura et al.

CATALYSIS SURVEYS FROM ASIA (2014)

Review Chemistry, Multidisciplinary

Understanding TiO2 Photocatalysis: Mechanisms and Materials

Jenny Schneider et al.

CHEMICAL REVIEWS (2014)

Article Engineering, Environmental

Sodium-Promoted Pd/TiO2 for Catalytic Oxidation of Formaldehyde at Ambient Temperature

Changbin Zhang et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2014)

Article Chemistry, Multidisciplinary

Mesoporous Au/TiO2 nanocomposites with enhanced photocatalytic activity

Hexing Li et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2007)

Review Green & Sustainable Science & Technology

A review and recent developments in photocatalytic water-splitting using TiO2 for hydrogen production

Meng Ni et al.

RENEWABLE & SUSTAINABLE ENERGY REVIEWS (2007)

Article Chemistry, Physical

Harvesting infrared photons with tricarbocyanine dye clusters

Kensuke Takechi et al.

JOURNAL OF PHYSICAL CHEMISTRY B (2006)

Article Chemistry, Physical

Combination effect of activated carbon with TiO2 for the photodegradation of binary pollutants at typical indoor air level

CH Ao et al.

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY (2004)

Article Environmental Sciences

The enhancement of photodegradation efficiency using Pt-TiO2 catalyst

FB Li et al.

CHEMOSPHERE (2002)