Hongguang Zhang

ORCID: 0000-0003-0341-9707
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Research Areas
  • Advanced Photocatalysis Techniques
  • Luminescence Properties of Advanced Materials
  • TiO2 Photocatalysis and Solar Cells
  • Minerals Flotation and Separation Techniques
  • nanoparticles nucleation surface interactions
  • Gas Sensing Nanomaterials and Sensors
  • Quantum Dots Synthesis And Properties
  • Iron oxide chemistry and applications
  • ZnO doping and properties
  • Nanocluster Synthesis and Applications
  • Gold and Silver Nanoparticles Synthesis and Applications
  • Catalytic Processes in Materials Science
  • Characterization and Applications of Magnetic Nanoparticles
  • Molecular Sensors and Ion Detection
  • Surface Modification and Superhydrophobicity
  • Advanced Nanomaterials in Catalysis
  • Fluid Dynamics and Heat Transfer
  • Multiferroics and related materials
  • Covalent Organic Framework Applications
  • Sulfur Compounds in Biology
  • Perovskite Materials and Applications
  • Superconductivity in MgB2 and Alloys
  • CO2 Reduction Techniques and Catalysts
  • Micro and Nano Robotics
  • Inorganic Fluorides and Related Compounds

University of Calgary
2023-2025

Qiqihar Medical University
2018-2025

Beijing University of Chemical Technology
2018-2024

Nanjing University of Posts and Telecommunications
2014-2024

Tianjin Municipal Research Institute for Family Planning
2018-2024

Tianjin University
2023-2024

Czech Academy of Sciences, Institute of Geology
2024

Northeast Forestry University
2023

Guangxi University
2023

Tang Hospital
2022

Numerous experiments have shown that bulk nanobubble suspensions are often characterized by a high magnitude of zeta potential. However, the underlying physical mechanism how nanobubbles can stably exist has remained unclear so far. In this paper, based on theoretical analysis, we report stability for charged nanobubbles. The strong affinity negative charges interface causes charge enrichment, and resulting electric field energy gives rise to local minimum free cost bubble formation, leading...

10.1039/d0sm00116c article EN Soft Matter 2020-01-01

Solar-driven CO2 reduction to value-added C2 chemicals is thermodynamically challenging due multiple complicated steps. The design of active sites and structures for photocatalysts necessary improve solar energy efficiency. In this work, atomically dispersed Ru-O in RuxIn2-xO3 are constructed by interior lattice anchoring Ru. This results the dynamic reconstruction Ruδ+-O/Ru0-O upon photoexcitation, which facilitates activation, *CO intermediates adsorption, C-C coupling as demonstrated...

10.1038/s41467-025-55885-z article EN cc-by-nc-nd Nature Communications 2025-01-09

Most evidences regarding ambient PM2.5 or PM10 (particulate matter of median aerodynamic diameter ≤2.5 μm ≤10 μm) and preterm birth (PTB) come from western countries which has relatively low PM pollution exposure, the results are still inconsistent. This study aims to examine whether exposure high concentrations was associated with PTB (<37 weeks) near term (37-38 weeks).We established a cohort 1,280,524 singleton pregnancies who delivered Dec 1st, 2013 Nov 30th, 2014 matched their home...

10.1016/j.envint.2018.10.025 article EN cc-by-nc-nd Environment International 2018-10-21

Artificially added or undesired organic and inorganic contaminants in solution that are interfacially active always tend to be adsorbed at the gas-liquid interface of micro- nano-bubbles, affecting stability tiny bubbles. In this work, by using molecular dynamics simulations we study how surfactant-like molecules, with their amphiphilic character, affect dissolution existing bulk nanobubbles under low gas supersaturation environments. We find that, depending on concentration dissolved...

10.1039/d2cp00283c article EN Physical Chemistry Chemical Physics 2022-01-01

The MD and CFD indicate that the lateral solutal Marangoni force originating from an asymmetric distribution of dissolved gas causes bubbles oscillation self-pinning effect.

10.1039/d3sm01646c article EN cc-by Soft Matter 2024-01-01

Abstract Poly(heptazine imide) (PHI), an emerging substitute for g‐C 3 N 4 (CN), is a good candidate towards photocatalytic CO 2 reduction, while it still suffers from weak charge separation and low efficiency of electron‐induced reduction reaction. Herein, ultrathin PHI nanosheets are synthesized through molten salt method with CN precursors, subsequently functionalized by assembling cobalt phthalocyanine (CoPc) aggregates via π–π interaction. The optimized CoPc/PHI heterojunction achieves...

10.1002/aenm.202405622 article EN Advanced Energy Materials 2025-02-27

Electric field-induced transient pore formation (reversible electroporation) in the bilayer membrane of synthetic large unilamellar vesicles (LUV) is used as a novel method for preparation angstrom size quantum dots indirect band gap semiconductor AgBr. With Ag+ ions encapsulated 178 nm diameter LUVs dioleoylphosphatidylcholine (DOPC) and Br- placed bulk medium, reaction + → AgBr subsequent clustering product are initiated by application 500 μs long high-voltage (E = 6 kV/cm) electric square...

10.1021/ja000073i article EN Journal of the American Chemical Society 2000-06-23

The precise determination of the line tension sessile droplets still represents a major challenge. At present, estimates from contact angle measurements can differ by 4–5 orders magnitude. Here we show that pinning effect droplet caused substrate inhomogeneities influences apparent droplet, affecting via corrected Young's equation. We introduce contribution effects into Gibbs free energy differential and derive modified version Using classical density functional theory, isolate force...

10.1021/acs.jpcc.8b03588 article EN The Journal of Physical Chemistry C 2018-07-10

The relationship between local structure of Eu<sup>3+</sup> ions and luminescence properties were discussed through site-selective spectroscopy at 10 K.

10.1039/c5ra07525d article EN RSC Advances 2015-01-01

Bubbles show size-dependent wetting behaviors and contact angles for small bubbles are no longer supplementary to those of droplets.

10.1039/c8nr08929a article EN Nanoscale 2019-01-01

The structures and UV absorption spectra of (AgBr)n clusters (n = 1−9) are investigated in both the gas phase a dielectric medium. were determined at B3P86 level using moderate size basis set with full geometry optimization. For n 1−6, extensive searches potential energy surface yielded only one minimum, while larger displayed two or more minima. Qualitative aspects major band also explored. Experimentally, as grow from monomers to systems, this initially shifts blue then red. Our...

10.1021/jp000099w article EN The Journal of Physical Chemistry A 2000-06-10

Through employing molecular dynamics, in this work, we study how a two-component surfactant mixture cooperatively reduces the interfacial tension of flat vapor-liquid interface. Our simulation results show that presence given insoluble surfactant, adding secondary would either further reduce tension, indicating positive synergistic effect, or increase instead, negative effect. The synergism lowering surface is found to depend strongly on structure complementary effect between different...

10.1021/acs.langmuir.3c01565 article EN Langmuir 2023-08-09

Surface nanobubbles have been presumed to lead the experimental observation that liquid boiling often occurs at a much lower supersaturation than expected, yet no qualitative theory exists explain how they participate in process. Here, we report through simple theoretical analysis on metastable nucleate liquid-to-vapor transition by serving as an intermediate phase. The appearance of inhibits shrink bubble nucleus and changes nucleation into multistep We show three possible mechanisms for...

10.1021/acs.langmuir.8b03290 article EN Langmuir 2018-11-01
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