Xueqian Yan

ORCID: 0000-0002-2254-3642
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Research Areas
  • Gas Sensing Nanomaterials and Sensors
  • Analytical Chemistry and Sensors
  • Advanced Chemical Sensor Technologies
  • Microbial Fuel Cells and Bioremediation
  • Advanced Photocatalysis Techniques
  • Adsorption and biosorption for pollutant removal
  • Wastewater Treatment and Nitrogen Removal
  • Advanced Mathematical Physics Problems
  • Advanced Mathematical Modeling in Engineering
  • Nonlinear Partial Differential Equations
  • Anaerobic Digestion and Biogas Production
  • Phosphorus and nutrient management
  • Nonlinear Differential Equations Analysis
  • Quantum Dots Synthesis And Properties
  • Mine drainage and remediation techniques
  • Advanced oxidation water treatment
  • Fractional Differential Equations Solutions
  • Membrane Separation Technologies
  • Heavy metals in environment
  • ZnO doping and properties
  • 2D Materials and Applications
  • Microbial Community Ecology and Physiology
  • Gold and Silver Nanoparticles Synthesis and Applications
  • Advanced Nanomaterials in Catalysis
  • Nonlinear Waves and Solitons

Hebei University of Science and Technology
2024

Northwestern Polytechnical University
2020-2022

Yunnan Normal University
2021-2022

Liaoning Normal University
2022

An ultrasensitive Ag-deposited TiO2 flower-like nanomaterial (FLNM) surface-enhanced Raman scattering (SERS)-active substrate is synthesized via a hydrothermal method, and Ag nanoparticles (NPs) are deposited through electron beam evaporation. Malachite green (MG), which widely used in aquaculture, employed to assess the (SERS) properties of TiO2/Ag FLNMs. They exhibit ultrasensitivity (limit detection (LOD) MG reaches 4.47 × 10-16 M) high reproducibility (relative standard deviations (RSDs)...

10.1021/acsomega.1c04082 article EN cc-by-nc-nd ACS Omega 2021-10-11

Abstract For real-application gas sensors, high performances (response, selectivity, response/recovery time and stability) are demanded. An effective strategy is applying nanomaterials in sensors. In this study, the anatase TiO 2 flower-like (FLNMs) prepared through a one-step hydrothermal method which exhibit high-performance toward acetone vapor. FLNMs sensors property characterized at optimal working temperature of 330 °C with selectivity (acetone), response ( S = 33.72 250 ppm acetone),...

10.1186/s11671-022-03721-4 article EN cc-by Nanoscale Research Letters 2022-09-02

Abstract Hybrid CdS/MoS 2 with branch and leaf shaped structures are successfully synthesized by hydrothermal method. It is applied to detect volatile organic compounds, a basic source of indoor air pollution deleterious effects on the human health. The sensor based displays an outstanding response alcohols among numerous gases. Their 100 ppm ethanol isopropanol reaches 56 94, respectively. Benefiting from dendrite-like biomimetic structure synergy effect CdS MoS , exhibits higher than...

10.1186/s11671-021-03647-3 article EN cc-by Nanoscale Research Letters 2022-01-06

Cadmium sulfide micrometer hollow spheres (CdS MHs) were fabricated by a hydrothermal method. The performance of the CdS MHs sensor was evaluated detecting volatile organic compounds such as methanol, ethanol, 1-propanol, isopropanol, n-butanol, iso-butyl alcohol, iso-amyl acetone, and xylene. It found that optimum working temperature is 190 °C. response can reach 27.4–100 ppm ethanol 84.55–100 isopropanol. Comparing to pure 5 isopropanol (iso-amyl alcohol) with mixture 50 acetone or...

10.1021/acsomega.1c06211 article EN cc-by-nc-nd ACS Omega 2021-12-28

Lead halide perovskites have drawn extensive attention on account of their fundamental role in the field photoelectric detection. Nevertheless, existence toxic lead ions and instability lead-based greatly hamper applications mass production commercialization. Herein, a hybrid photodetector based lead-free inorganic perovskite nanoflake (Cs3Sb2Br9 NF)/monoradicular CdSe nanobelt (NB) has been successfully prepared. The nanostructures promote effective separation electron–hole pairs, thus...

10.1021/acsanm.2c03863 article EN ACS Applied Nano Materials 2022-11-06

In this paper, we investigate the existence of nontrivial solutions for nonlinear Klein–Gordon equations coupled with Born–Infeld theory critical Sobolev exponents by variational methods.

10.4171/pm/2116 article EN cc-by Portugaliae Mathematica 2024-01-04

This paper is concerned with the existence of ground state solutions for p-fractional Choquard-Kirchhoff equations involving electromagnetic fields and critical nonlinearity.Under assumptions on nonlinear term, by applying method Nehari manifold, we obtain that equation possesses a solution.

10.4236/oalib.1108837 article EN OALib 2022-01-01
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