4.6 Article

Au-Deposited Ce0.5Zr0.5O2 Nanostructures for Photocatalytic H2 Production under Visible Light

Related references

Note: Only part of the references are listed.
Article Chemistry, Physical

A S-scheme heterojunction of Co9S8 decorated TiO2 for enhanced photocatalytic H2 evolution

Wenqian Huang et al.

Summary: This study fabricated a Co9S8/TiO2 heterojunction photocatalyst to optimize light absorption, charge carrier separation, and surface reaction efficiency, and demonstrated superior H2 evolution performance and stability.

JOURNAL OF ALLOYS AND COMPOUNDS (2023)

Article Chemistry, Applied

Noble Metals (Ag, Au, Pd and Pt) Decorated ZnBiVO4 Nanostructures for Enhanced Photocatalytic H2 Production

Ghada K. Alqurashi et al.

Summary: This study successfully synthesized nanosized ZnBiVO4 semiconductor and utilized it for photocatalytic hydrogen production under visible light irradiation. The deposition of noble metals (Ag, Au, Pd, and Pt) on the surface of ZnBiVO4 significantly enhanced the photocatalytic hydrogen production efficiency. Among them, Pt-decorated samples exhibited the highest photocatalytic hydrogen production performance. Thorough material characterization experiments revealed the mechanism of Pt's role.

TOPICS IN CATALYSIS (2023)

Article Materials Science, Multidisciplinary

S-scheme heterojunction in photocatalytic hydrogen production

Teng Li et al.

JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY (2023)

Article Chemistry, Multidisciplinary

Nanocomposites with ZrO2@S-Doped g-C3N4 as an Enhanced Binder-Free Sensor: Synthesis and Characterization

Nigussie Alebachew et al.

Summary: This study presents new electrocatalyst materials, semiconductor nanocomposites made from active ZrO2@S-doped g-C3N4, which are capable of detecting and reducing environmental pollutants. The synthesized samples were characterized using various techniques including electrochemical impedance spectroscopy, Mott-Schottky measurements, X-ray diffraction, high-resolution scanning electron microscopy, and high-resolution X-ray photoelectron spectroscopy. The inclusion of ZrO2 on S-doped g-C3N4 enhanced the electron transport mechanism and resulted in an ideal platform for detecting 4-nitrophenol in water. The modified electrode exhibited good electrocatalytic activity and high sensitivity in the detection of 4-nitrophenol, making it a superior electrochemical sensor.

ACS OMEGA (2023)

Article Energy & Fuels

Pt-Ag/Ag3PO4-WO3 nanocomposites for photocatalytic H2 production from bioethanol

Ahmed Hussain Jawhari et al.

Summary: Crystalline Ag3PO4 and WO3 nanofibers were synthesized by microwave and electrospinning methods. Ag3PO4/WO3 nanocomposite heterostructures were obtained using different compositions of WO3 nanofibers (5, 10, and 15 wt%), which showed excellent visible light photo catalytic activity. Pt-Ag metal nanoparticles were biogenically synthesized using Salvia officinalis extract to decorate Ag3PO4-WO3 composites, leading to enhanced photocatalytic performance for hydrogen production.
Article Engineering, Environmental

PtOx deposited Fe3O4-ZnO/TiO2 nanocomposites for photocatalytic H2 production under visible light

Shaeel Ahmed Althabaiti et al.

Summary: TiO2 nanotubes, Fe3O4-ZnO, and nanocomposites of Fe3O4-ZnO and TiO2 were synthesized by varying the amount of Fe3O4-ZnO. PtOx nanoparticles were then decorated onto the surface of the nanocomposites using a green synthesis method. The synthesized samples were characterized through various spectroscopy and microscopy techniques, revealing strong interaction between Fe3O4-ZnO and TiO2 nanotubes. Deposition of PtOx resulted in a decrease in the bandgap, and Fe3O4-ZnO/TiO2 nanocomposites exhibited higher surface area and pore volume compared to Fe3O4-ZnO sample. The presence of PtOx species inhibited the recombination of e-/h+ pairs, leading to improved photocatalytic H2 production.

JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING (2023)

Article Biochemistry & Molecular Biology

Optimizing the shape anisotropy of gold nanoparticles for enhanced light harvesting and photocatalytic applications

Jibin Antony et al.

Summary: By optimizing the shape of gold nanoparticles, the light harvesting capabilities of hybrid nanoparticles can be enhanced, leading to improved solar energy conversion efficiency.

PHOTOCHEMICAL & PHOTOBIOLOGICAL SCIENCES (2023)

Article Chemistry, Physical

Ethanol gas sensing mechanisms of p-type NiO at room temperature

Javier Bartolome et al.

Summary: Conductometric gas sensors based on metal oxide semiconductors often require high temperature operation, but this study focuses on room temperature operation of p-type NiO ceramic samples in response to ethanol. An anomalous response with fast response and recovery times is observed when the samples are synthesized at different temperatures, and a model is proposed to explain this unexpected resistance decrease upon ethanol exposure. This model could potentially lead to the development of fast sensors operating at room temperature for other MOS systems.

APPLIED SURFACE SCIENCE (2022)

Article Chemistry, Physical

Ag/Ce0.5Zr0.5O2 nanofibers: Visible light photocatalysts for degradation of p-nitrophenol

Katabathini Narasimharao et al.

Summary: Ag deposited Ce0.5Zr0.5O2 nanofibers (CeZr-NF) were successfully synthesized and displayed excellent photocatalytic activity for degradation of p-nitrophenol (p-NP) under visible irradiation. The highest degradation efficiency of 96% was observed with acidic p-NP solution and 0.2 g of 1.5 wt.% Ag loaded CeZr-NF sample in 90 min. The significant enhancement in degradation efficiency of CeZr nanofibers after Ag deposition is attributed to the combination effects of low band gap energy, large pore size, high photocurrent density, and slow e --h+ recombination.

MOLECULAR CATALYSIS (2022)

Article Chemistry, Physical

Synthesis of Narrow-Band-Gap GaN:ZnO Solid Solution for Photocatalytic Overall Water Splitting

Kaiwei Liu et al.

Summary: The synthesis of narrow-band-gap GaN:ZnO solid solution was achieved in this study, demonstrating its potential application in visible-light-driven water splitting.

ACS CATALYSIS (2022)

Article Chemistry, Physical

W-N Bonds Precisely Boost Z-Scheme Interfacial Charge Transfer in g-C3N4/WO3 Heterojunctions for Enhanced Photocatalytic H2 Evolution

Rongchen Shen et al.

Summary: Precise electron transfer in Z-scheme heterojunctions has been a challenge, but a new strategy of chemically bonding the valence band site of g-C3N4 with the conduction band site of WO3 shows promising results in boosting photocatalytic hydrogen generation.

ACS CATALYSIS (2022)

Article Chemistry, Physical

Oxidative dehydrogenation of ethanol on gold: Combination of kinetic experiments and computation approach to unravel the reaction mechanism

Erfan Behravesh et al.

Summary: The study combined experiments, DFT calculations, and kinetic modeling to elucidate the mechanism and kinetics of ethanol oxidative dehydrogenation to acetaldehyde on gold catalysts, indicating the key role of ethanol-mediated oxygen activation in the reaction.

JOURNAL OF CATALYSIS (2021)

Article Chemistry, Physical

Enhancing the photocatalytic hydrogen production of the ZnO-TiO2 heterojunction by supporting nanoscale Au islands

David Ramirez-Ortega et al.

Summary: Loading Au on the ZnO-TiO2 heterojunction enhanced its photocatalytic hydrogen production ability, with the maximum hydrogen production rate observed at 2-wt.% Au content. This improvement is associated with the synergistic interaction between the ZnO-TiO2 heterojunction and Au islands.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (2021)

Article Green & Sustainable Science & Technology

Plasmonic Au-based junctions onto TiO2, gC3N4, and TiO2-gC3N4 systems for photocatalytic hydrogen production: Fundamentals and challenges

Pablo Jimenez-Calvo et al.

Summary: Solar energy and photocatalysis are key players in the energy transition, with hydrogen emerging as an ideal solar fuel due to its simplicity in the water-splitting reaction. However, the challenge lies in finding a single catalyst with sufficient conversion efficiency. The development of multi-phase composites, plasmonic Schottky junctions, and Z-scheme heterojunctions are promising approaches to enhancing hydrogen production.

RENEWABLE & SUSTAINABLE ENERGY REVIEWS (2021)

Article Chemistry, Multidisciplinary

Seeded Growth of Au@CuxO Core-Shell Mesoporous Nanospheres and Their Photocatalytic Properties

Gongguo Zhang et al.

Summary: A facile synthesis method of Au@CuxO core-shell mesoporous nanospheres with tunable size was reported. The nanospheres showed higher adsorption ability, enhanced activity, and excellent stability in photocatalytic degradation under visible light irradiation, demonstrating potential applications in water treatment.

FRONTIERS IN CHEMISTRY (2021)

Article Chemistry, Multidisciplinary

Single-Molecule Colocalization of Redox Reactions on Semiconductor Photocatalysts Connects Surface Heterogeneity and Charge-Carrier Separation in Bismuth Oxybromide

Meikun Shen et al.

Summary: The study investigates the photocatalytic oxidation and reduction reactions of bismuth oxybromide nanoplates using single-molecule fluorescence imaging, revealing two distinct photochemical behaviors within the same batch of samples. The results suggest that defect-free regions promote the colocalization of electrons and holes, while defects selectively extract one carrier type by trapping either electrons or holes.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2021)

Article Engineering, Environmental

Interface control and catalytic performances of Au-NiSx heterostructures

Yuepeng Lv et al.

CHEMICAL ENGINEERING JOURNAL (2020)

Article Physics, Multidisciplinary

Au/Cu2O core/shell nanostructures with efficient photoresponses

Gul Naz et al.

CHINESE JOURNAL OF PHYSICS (2019)

Article Nanoscience & Nanotechnology

CeO2 Nanoparticle Morphologies and Their Corresponding Crystalline Planes for the Photocatalytic Degradation of Organic Pollutants

Rafael A. C. Amoresi et al.

ACS APPLIED NANO MATERIALS (2019)

Article Chemistry, Multidisciplinary

Hot carriers in action: multimodal photocatalysis on Au@SnO2 core-shell nanoparticles

Xiaoqi Fu et al.

NANOSCALE (2019)

Article Chemistry, Multidisciplinary

Effect of platinum dispersion on photocatalytic performance of Pt-TiO2

Lili Hou et al.

JOURNAL OF NANOPARTICLE RESEARCH (2018)

Editorial Material Chemistry, Physical

How To Correctly Determine the Band Gap Energy of Modified Semiconductor Photocatalysts Based on UV-Vis Spectra

Patrycja Makula et al.

JOURNAL OF PHYSICAL CHEMISTRY LETTERS (2018)

Article Nanoscience & Nanotechnology

Hybrid structures based on gold nanoparticles and semiconductor quantum dots for biosensor applications

Margarita Kurochkina et al.

NANOTECHNOLOGY SCIENCE AND APPLICATIONS (2018)

Article Chemistry, Physical

Influence of agglomeration and aggregation on the photocatalytic activity of TiO2 nanoparticles

Francesco Pellegrino et al.

APPLIED CATALYSIS B-ENVIRONMENTAL (2017)

Article Chemistry, Physical

Total oxidation of ethanol over Au/Ce0.5Zr0.5O2 cordierite monolithic catalysts

Pavel Topka et al.

APPLIED CATALYSIS A-GENERAL (2016)

Article Chemistry, Physical

Photocatalytic H2 production from ethanol(aq) solutions: The effect of intermediate products

A. C. Sola et al.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (2016)

Article Nanoscience & Nanotechnology

Influence of crystal structure of nanosized ZrO2 on photocatalytic degradation of methyl orange

Sulaiman N. Basahel et al.

NANOSCALE RESEARCH LETTERS (2015)

Article Chemistry, Multidisciplinary

Green synthesis of Au nanoparticles using potato extract: stability and growth mechanism

D. N. Castillo-Lopez et al.

JOURNAL OF NANOPARTICLE RESEARCH (2014)

Article Chemistry, Physical

CeO2-ZrO2-promoted CuO/ZnO catalyst for methanol steam reforming

Lei Zhang et al.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (2013)

Article Materials Science, Multidisciplinary

ZrO2/CeO2 nanocomposite: Two step synthesis, microstructure, and visible-light photocatalytic activity

Xiaoqing Wang et al.

MATERIALS LETTERS (2013)

Article Multidisciplinary Sciences

Influence of the layer thickness in plasmonic gold nanoparticles produced by thermal evaporation

D. Gaspar et al.

SCIENTIFIC REPORTS (2013)

Review Chemistry, Multidisciplinary

Localized Surface Plasmon Resonance Sensors

Kathryn M. Mayer et al.

CHEMICAL REVIEWS (2011)

Article Chemistry, Multidisciplinary

Selective oxidation of sacrificial ethanol over TiO2-based photocatalysts during water splitting

Haiqiang Lu et al.

ENERGY & ENVIRONMENTAL SCIENCE (2011)

Article Chemistry, Physical

Tunable Localized Plasmon Transducers Prepared by Thermal Dewetting of Percolated Evaporated Gold Films

Alexander B. Tesler et al.

JOURNAL OF PHYSICAL CHEMISTRY C (2011)

Article Chemistry, Physical

Doped nanosized ceria solid solutions for low temperature soot oxidation: Zirconium versus lanthanum promoters

Lakshmi Katta et al.

APPLIED CATALYSIS B-ENVIRONMENTAL (2010)

Article Chemistry, Physical

Structural Characteristics and Catalytic Activity of Nanocrystalline Ceria-Praseodymia Solid Solutions

Benjaram M. Reddy et al.

JOURNAL OF PHYSICAL CHEMISTRY C (2009)

Article Engineering, Environmental

Effect of metal doping into Ce0.5Zr0.5O2 on photocatalytic activity of TiO2/Ce0.45Zr0.45M0.1Ox(M = Y, La, Mn)

Zhong Jun Bo et al.

JOURNAL OF HAZARDOUS MATERIALS (2007)

Review Chemistry, Applied

Physisorption hysteresis loops and the characterization of nanoporous materials

KSW Sing et al.

ADSORPTION SCIENCE & TECHNOLOGY (2004)

Article Chemistry, Physical

Synthesis and characterization of copper-stabilized zirconia as an anode material for SOFC

MK Dongare et al.

SOLID STATE IONICS (2002)

Article Chemistry, Physical

Alternative methods for the preparation of gold nanoparticles supported on TiO2

R Zanella et al.

JOURNAL OF PHYSICAL CHEMISTRY B (2002)

Review Chemistry, Physical

Catalysis of gold nanoparticles deposited on metal oxides

M Haruta

CATTECH (2002)