A5114889089- Gold and Silver Nanoparticles Synthesis and Applications
- MXene and MAX Phase Materials
- 2D Materials and Applications
- Nanocluster Synthesis and Applications
- Graphene research and applications
- Advanced Photocatalysis Techniques
- Biosensors and Analytical Detection
- ZnO doping and properties
- Nanomaterials for catalytic reactions
- Quantum Dots Synthesis And Properties
- Advanced biosensing and bioanalysis techniques
- Perovskite Materials and Applications
- Copper-based nanomaterials and applications
- Catalytic Processes in Materials Science
- Advancements in Battery Materials
- Advanced Nanomaterials in Catalysis
- Iron oxide chemistry and applications
- Gas Sensing Nanomaterials and Sensors
- Electrocatalysts for Energy Conversion
- Protein Interaction Studies and Fluorescence Analysis
- Aquatic Ecosystems and Phytoplankton Dynamics
- Laser-Ablation Synthesis of Nanoparticles
- Supercapacitor Materials and Fabrication
- Surface Modification and Superhydrophobicity
- Plasmonic and Surface Plasmon Research
Nanjing University
2024-2025
State Key Laboratory of Pollution Control and Resource Reuse
2024-2025
Institute of Intelligent Machines
2012-2024
Chinese Academy of Sciences
2012-2024
Anhui Normal University
2015-2024
Hefei Institutes of Physical Science
2022-2024
Lanzhou University
2024
Hefei Institute of Technology Innovation
2023-2024
Taiyuan University of Technology
2023
Binzhou University
2010-2021
We perform a comprehensive first-principles study of the electronic properties phosphorene nanoribbons, phosphorus nanotubes, multilayer sheets, and heterobilayers two-dimensional (2D) transition-metal dichalcogenide (TMDC) monolayer. The tensile strain electric-field effects on low-dimensional nanostructures are also investigated. Our calculations show that bare zigzag nanoribbons (z-PNRs) metals regardless ribbon width, whereas armchair (a-PNRs) semiconductors with indirect bandgaps...
We have performed a comprehensive first-principles study of the electronic and magnetic properties two-dimensional (2D) transition-metal dichalcogenide (TMD) heterobilayers MX2/MoS2 (M = Mo, Cr, W, Fe, V; X S, Se). For M W; X=S, Se, all show semiconducting characteristics with an indirect bandgap exception WSe2/MoS2 heterobilayer which retains direct-band-gap character constituent monolayer. exhibit metallic characters. Particular attention this has been focused on engineering TMD materials...
We have performed a systematic first-principles study of the effect tensile strains on electronic properties early transition-metal dichalcogenide (TMDC) monolayers MX2 (M = Sc, Ti, Zr, Hf, Ta, Cr; X S, Se, and Te). Our density-functional theory (DFT) calculations suggest that strain can significantly affect many TMDCs in general bandgap particular. For group IVB (TiX2, ZrX2, HfX2), increases with strain, but for ZrX2 HfX2 (X=S, Se), starts to decrease at 6% 8%. group-VB (TaX2), either...
Developing highly efficient sorbent materials for CO2 separation and capture from gas mixture is most important reducing impact of on the environment. On basis density functional theory calculations with dispersion correction, we show that hexagonal boron nitride sheet (h-BN), when under an external electric field, can become effective capture. In absent molecules are physisorbed h-BN sheet. Under adsorption monolayer be strongly strengthened. Compared to CO2, H2, N2, CH4, CO, or H2O notably...
We have studied structural, electronic, and magnetic properties of the graphene-like ZnO monolayer doped with nonmetal species using first-principles calculations. Particular attention has been placed on one or two oxygen atoms per supercell substituted by carbon, boron, nitrogen atoms. find that atom a carbon boron is ferromagnetic (FM) half metal (HM), while FM semiconductor. Upon vary, depending distance between impurities. Two neighboring in form dimer pairs, which convert into an n-type...
Two-dimensional (2D) semiconductors with direct and modest bandgap ultrahigh carrier mobility are highly desired functional materials for nanoelectronic applications. Herein, we predict that monolayer CaP3 is a new 2D material possesses not only of 1.15 eV (based on HSE06 computation), also very high electron up to 19930 cm2 V-1 s-1, comparable phosphorene. More remarkably, contrary the bilayer phosphorene which dramatically reduced compared its counterpart, even higher (22380 s-1) than...
We perform a comprehensive first-principles study of the electronic properties van der Waals (vdW) trilayers <italic>via</italic> intercalating two-dimensional (2D) monolayer (ML = BN, MoSe<sub>2</sub>, WS<sub>2</sub>, or WSe<sub>2</sub>) between MoS<sub>2</sub> bilayer to form various MoS<sub>2</sub>/ML/MoS<sub>2</sub> sandwich trilayers.
Bifunctional Au-loaded Fe3O4@C composite microspheres were controllably synthesized by coating of Au nanoparticles (NPs) on the surface poly(diallyldimethylammonium chloride) (PDDA) functionalized microspheres. The amount loading can be effectively tuned altering feeding amounts solution NPs or further growth. obtained exhibit both superior surface-enhanced Raman scattering (SERS) sensitivity and catalytic degradation activity for organic dyes. SERS signal intensity methylene blue (MB)...
A template-free solvothermal combined with precursor thermal transformation method has been developed for the preparation of flower-like Fe3O4 nanostructured hollow microspheres. The reaction mechanism and self-assembly evolution process were studied, it was found that synthetic conditions such as time, urea concentration non-aqueous media are all crucial formation hierarchical precursors. microspheres obtained by calcining in Ar gas exhibit superparamagnetic behavior show relative high...
We report the study correlating shape, surface plasmon resonance (SPR), and surface-enhanced Raman scattering (SERS) of gold nanorods (NRs) in dilute colloids. A series NRs with various aspect ratios was prepared via an improved seed-mediated technique. Increasing ratio finely tunes position longitudinal mode a wide spectral range. This shape-dependent SPR behavior simulated by Gans theory discrete dipole approximation method. The subtle influence on SERS then demonstrated gradually tuning...
This paper reports a simple, sonochemical, surfactant-free synthesis of three-dimensional (3D) silver microflowers with high yield and good size distribution at ambient temperature. The shape, surface structure (controlled roughness the topography) Ag could be tuned by controlling experimental parameters. special structural features nanoscale corrugations 3D make significant contribution to sensitivity SERS Rhodamine 6G (R6G) 4-mercaptobenzoic acid (MBA) molecules. rougher display higher...
We report a giant photothermal effect arising from quantum confinement in two-dimensional nanomaterials. ZrNCl ultrathin nanosheets with less than four monolayers of graphene-like nanomaterial successfully generated synergetic effects larger relaxation energy photon-generated electrons and intensified vibration surface bonds, offering predominantly an enhancement the electron–phonon interaction to maximized extent. As result, they could generate heat flow reaching ultrahigh value 5.25 W/g...
A comprehensive first-principles study of the electronic properties twisted 2D transition metal dichalcogenide (TMDC) heterobilayers MX<sub>2</sub>/MoS<sub>2</sub>(M = Mo, Cr, W; X S, Se) with different rotation angles has been performed.
Highly ordered silver nanodishes which consist of nanorings and a film were fabricated as surface-enhanced Raman scattering (SERS) substrates. Numerical simulation reveals the bottom can dramatically enhance local electromagnetic (EM) field in ring cavity, due to plasmonic interaction between film. results show that produce about sevenfold stronger signal than alone, accordance with theoretical simulation. The detection limit for Rhodamine 6G (R6G) order 10−12 M average relative standard...
The development of new carbon materials with novel properties and excellent applications is essential urgent in many fields, such as potassium-ion batteries (PIBs). In this study, a family 30 two-dimensional biphenylene allotropes (2D-BCAs) have been systematically extended theory. energies these are slightly higher than that graphene, which can be well described by quantitative energy equation. 2D-BCAs show high synthesizability consistent the experimental network via "HF-zipping"...
Here demonstrated a facile one-pot hydrothermal method for the controlled synthesis of porous Au–Fe<sub>3</sub>O<sub>4</sub> hybrid hollow spheres. The obtained spheres exhibit superior SERS sensitivity and excellent catalytic activity.
Magnetic–plasmonic nanospindles serve as SERS substrates with controllable aggregation due to steady enrichment of mass molecules nearby abundant hot spots.
Bioinspired ribbed hair arrays have been fabricated by colloidal lithography and plasma etching. After fluorination, the with remarkable superhydrophobicity can present self cleaning performance a large loading capacity.