A5021612181- Advanced Photocatalysis Techniques
- Quantum Dots Synthesis And Properties
- Chalcogenide Semiconductor Thin Films
- Copper-based nanomaterials and applications
- CO2 Reduction Techniques and Catalysts
- Catalytic Processes in Materials Science
- Perovskite Materials and Applications
- Electrocatalysts for Energy Conversion
- Catalysts for Methane Reforming
- Sulfur-Based Synthesis Techniques
- Catalysis and Oxidation Reactions
- Carbon dioxide utilization in catalysis
- Metalloenzymes and iron-sulfur proteins
- Advanced Materials Characterization Techniques
- Advanced Nanomaterials in Catalysis
- Catalysis and Hydrodesulfurization Studies
- Catalysis for Biomass Conversion
- Ionic liquids properties and applications
- Advanced battery technologies research
- ZnO doping and properties
Qilu University of Technology
2021-2024
Zhengzhou University of Light Industry
2024
Shandong Academy of Sciences
2021-2023
Technical Institute of Physics and Chemistry
2014-2022
Chinese Academy of Sciences
2015-2021
University of Chinese Academy of Sciences
2014-2019
Quantum dots (QDs) offer new and versatile ways to harvest light energy. However, there are few examples involving the utilization of QDs in organic synthesis. Visible-light irradiation CdSe was found result virtually quantitative coupling a variety thiols give disulfides H2 without need for sacrificial reagents or external oxidants. The addition small amounts nickel(II) salts dramatically improved efficiency conversion through facilitating formation hydrogen atoms, thereby leading faster...
Colloidal quantum dots (QDs) have demonstrated great promise in artificial photosynthesis. However, the ultrasmall size hinders its controllable and effective interaction with cocatalysts. To improve poor interparticle electronic communication between free QD cocatalyst, we design here a self-assembled architecture of nanoparticles, QDs Pt simply jointed together by molecular polyacrylate to greatly enhance rate efficiency interfacial electron transfer (ET). The enhanced is confirmed...
A facile aqueous approach is developed to synthesize heterostructured CdSe/CdS QDs for advanced hydrogen photosynthesis.
We describe a simple, efficient and stable mercaptoacetic acid-engineered CdSe quantum dot photocathode for hydrogen generation by water-splitting from neutral water.
Inspired by green plants, artificial photosynthesis has become one of the most attractive approaches toward carbon dioxide (CO2 ) valorization. Semiconductor quantum dots (QDs) or dot-in-rod (DIR) nano-heterostructures have gained substantial research interest in multielectron photoredox reactions. However, fast electron-hole recombination sluggish hole transfer and utilization remains unsatisfactory for their potential applications. Here, first application a well-designed ZnSe/CdS...
Colloidal quantum dots (QDs) consisting of precious-metal-free elements show attractive potentials towards solar-driven CO2 reduction. However, the inhibition hydrogen (H2 ) production in aqueous solution remains a challenge. Here, we describe first example carbon-carbon (C-C) coupling reaction to block competing H2 evolution photocatalytic reduction water. In specific system taking ZnSe QDs as photocatalysts, introduction furfural can significantly suppress leading CO with rate ≈5.3 mmol...
Abstract Semiconducting quantum dots (QDs) have recently triggered a huge interest in constructing efficient hydrogen production systems. It is well established that large fraction of surface atoms QDs need ligands to stabilize and avoid them from aggregating. However, the influence property on photocatalysis rather elusive. Here, regulation CdSe investigated by sulfide ions (S 2− ) for photocatalytic evolution. Structural spectroscopic study shows with gradual addition S , first grows into...
Hollow spheres are one of the most promising micro-/nanostructures because their unique performance in diverse applications. Templates, surfactants, and structure-directing agents often used to control sizes morphologies hollow spheres. In this Article, we describe a simple method based on visible light catalysis for preparing nanospheres from CdE (E = Te, Se, S) quantum dots (QDs) nickel (Ni2+) salts aqueous media. contrast well-developed traditional approaches, QDs formed situ by...
Solar H2 evolution of CdSe QDs can be significantly enhanced simply by introducing a suitable hole-accepting-ligand for achieving efficient hole extraction and transfer at the nanoscale interfaces, which opens an effective pathway dissociation excitons to generate long-lived charge separation, thus improving solar-to-fuel conversion efficiency.
Surface stoichiometry of QDs is a sensitive parameter affecting the photocatalytic activity H<sub>2</sub> evolution.
Abstract The catalytic nature of semiconducting quantum dots (QDs) for photocatalytic hydrogen (H 2 ) evolution can be thoroughly aroused, not because coupling with external cocatalysts, but through partially covering controlled amount ZnS shell on the surface. Specifically, CdSe QDs, an optimal coverage (≈46%), produce H gas a constant rate ≈306.3 ± 21.1 µmol mg −1 h during 40 h, thereby giving turnover number ≈(4.4 0.3) × 10 5 , which is ≈110‐fold to that unmodified QDs under identical...
Abstract Quantum dots (QDs) offer new and versatile ways to harvest light energy. However, there are few examples involving the utilization of QDs in organic synthesis. Visible‐light irradiation CdSe was found result virtually quantitative coupling a variety thiols give disulfides H 2 without need for sacrificial reagents or external oxidants. The addition small amounts nickel(II) salts dramatically improved efficiency conversion through facilitating formation hydrogen atoms, thereby leading...
Abstract Unlike their bulk counterpart, Cu x In y S quantum dots (QDs) prepared by an aqueous synthetic approach, show promising activity for photocatalytic hydrogen evolution, which is competitive with the state‐of‐the‐art Cd chalcogen QDs. Moreover, as‐prepared QDs In‐rich composition much better efficiency than stoichiometric ones (Cu/In=1:1).
X-ray transient absorption spectroscopy (XTA) and optical (OTA) were used to probe the Co(I) intermediate generated in situ from an aqueous photocatalytic hydrogen evolution system, with [RuII(bpy)3]Cl2·6H2O as photosensitizer, ascorbic acid/ascorbate electron donor, Co-polypyridyl complex ([CoII(DPA-Bpy)Cl]Cl) precatalyst. Upon exposure light, XTA measured at Co K-edge visualizes grow decay of intermediate, reveals its Co–N bond contraction 0.09 ± 0.03 Å. Density functional theory (DFT)...
Remarkable enhancement of photocatalytic hydrogen evolution from quantum dots by introducing buffer layer between the InP core and ZnS shell.
CO 2 electroreduction and 5-hydroxymethylfurfural electrooxidation were coupled together over Cu base nanoflower catalyst faradaic efficiency of FDCA C H 4 reached to 96.6% 74.5% respectively at a cell voltage 2.75 V.
Due to their enhanced light harvesting, favored interfacial charge transfer and excellent proton reduction activity, hybrid photocatalysts of metallic 1T-MoS2 nanosheets inorganic-ligand stabilized CdSe/ZnS QDs obtained via a self-assembly approach can produce H2 gas with rate ∼155 ± 3.5 μmol h-1 mg-1 under visible-light irradiation (λ = 410 nm), the most exceptional performance solar evolution using MoS2 as cocatalyst known date.
CdS and CdS/ZnS colloidal nanocrystals (NCs) capped with inorganic sulfide (S<sup>2−</sup>) ligands were directly synthesized no aid of organic in water.
The InP-based quantum dots (QDs) have attracted much attention in the field of photocatalytic H
The catalytic activity of CdSe QDs could be enhanced more than 150-fold by forming self-assembled clusters with ZnSe made<italic>ex situ</italic>.
Semiconductive photocatalytic materials have received increasing attention recently due to their ability transform solar energy into chemical fuels and photodegrade a wide range of pollutants. Among them, cadmium sulfide (CdS) nanoparticles been extensively studied as semiconductive photocatalysts in previous studies on hydrogen generation environmental purification suitable bandgap sensitive light response. However, the practical applications CdS are limited by its low charge separation,...
Abstract Colloidal quantum dots (QDs) consisting of precious‐metal‐free elements show attractive potentials towards solar‐driven CO 2 reduction. However, the inhibition hydrogen (H ) production in aqueous solution remains a challenge. Here, we describe first example carbon–carbon (C−C) coupling reaction to block competing H evolution photocatalytic reduction water. In specific system taking ZnSe QDs as photocatalysts, introduction furfural can significantly suppress leading with rate ≈5.3...