Yi‐Jun Xu

ORCID: 0000-0002-2195-1695
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Research Areas
  • Advanced Photocatalysis Techniques
  • Quantum Dots Synthesis And Properties
  • Copper-based nanomaterials and applications
  • Catalytic Processes in Materials Science
  • Covalent Organic Framework Applications
  • Graphene research and applications
  • TiO2 Photocatalysis and Solar Cells
  • CO2 Reduction Techniques and Catalysts
  • Electrocatalysts for Energy Conversion
  • Nanomaterials for catalytic reactions
  • 2D Materials and Applications
  • Advanced Nanomaterials in Catalysis
  • Gas Sensing Nanomaterials and Sensors
  • ZnO doping and properties
  • Perovskite Materials and Applications
  • Semiconductor materials and devices
  • Carbon and Quantum Dots Applications
  • Ammonia Synthesis and Nitrogen Reduction
  • MXene and MAX Phase Materials
  • Metal and Thin Film Mechanics
  • Nanocluster Synthesis and Applications
  • Catalysis and Oxidation Reactions
  • Gold and Silver Nanoparticles Synthesis and Applications
  • Ga2O3 and related materials
  • Diamond and Carbon-based Materials Research

Fuzhou University
2016-2025

Chinese Academy of Sciences
2006-2025

Hunan Agricultural University
2025

Institute of Subtropical Agriculture
2025

University of Electronic Science and Technology of China
2024-2025

Soochow University
2008-2024

First Affiliated Hospital of Soochow University
2024

Suzhou Institute of Nano-tech and Nano-bionics
2015-2024

Ningbo University
2023-2024

National Kaohsiung University of Science and Technology
2022-2024

Titanium dioxide (TiO2), as an important semiconductor metal oxide, has been widely investigated in the field of photocatalysis. The properties TiO2, including its light absorption, charge transport and surface adsorption, are closely related to defect disorder, which turn plays a significant role photocatalytic performance TiO2. Among all defects identified oxygen vacancy is one most supposed be prevalent many oxides, both by theoretical calculations experimental characterizations. Here, we...

10.1039/c3nr00476g article EN Nanoscale 2013-01-01

The nanocomposites of TiO2−graphene (TiO2−GR) have been prepared via a facile hydrothermal reaction graphene oxide and TiO2 in an ethanol−water solvent. We show that such TiO2−GR nanocomposite exhibits much higher photocatalytic activity stability than bare toward the gas-phase degradation benzene, volatile aromatic pollutant air. By investigating effect different addition ratios on systematically, we find weight ratio will decrease activity. Analogous phenomenon is also observed for...

10.1021/nn1024219 article EN ACS Nano 2010-11-30

The recent progress in the synthesis, properties and photocatalytic applications of carbon quantum dots (CQDs) has been elaborately demonstrated, some perspectives on challenges opportunities for future exploration this arena are discussed.

10.1039/c6ta08660h article EN Journal of Materials Chemistry A 2017-01-01

Increasing interest has been devoted to synthesizing graphene (GR)-semiconductor nanocomposites as photocatalysts for potential applications, which is very similar its forebear carbon nanotube (CNT)-semiconductor photocatalysts. Unfortunately, a thoughtful and inevitable comparison between GR- CNT-semiconductors often neglected in literature. This situation may give incomplete or exaggerated information on the contribution role of GR enhance semiconductor photocatalytic activity, compared...

10.1021/nn202519j article EN ACS Nano 2011-08-26

We report the assembly of nanosized ZnS particles on 2D platform a graphene oxide (GO) sheet by facile two-step wet chemistry process, during which reduced (RGO, also called GR) and intimate interfacial contact between nanoparticles GR are achieved simultaneously. The ZnS-GR nanocomposites exhibit visible light photoactivity toward aerobic selective oxidation alcohols epoxidation alkenes under ambient conditions. In terms structure-photoactivity correlation analysis, we for first time...

10.1021/nn304154s article EN ACS Nano 2012-10-29

The core–shell nanocomposites of M@TiO2 (M = Au, Pd, Pt) have been synthesized successfully via a facile hydrothermal treatment TiF4 precursor and noble metal colloid particles. Their properties were determined by collection joint techniques, including scanning electron microscopy (SEM), transmission (TEM), energy-dispersive X-ray spectroscopy (EDX), diffraction spectra (XRD), ultraviolet/visible diffuse reflectance (DRS), photoluminescence (PL), spin resonance (ESR). Photocatalytic...

10.1021/jp2009989 article EN The Journal of Physical Chemistry C 2011-04-21

A carbon nanotubes (CNT)/TiO2 nanocomposite photocatalyst has been prepared by a simple impregnation method, which is used, for the first time, gas-phase degradation of benzene. It found that as-prepared CNT/TiO2 exhibits an enhanced photocatalytic activity benzene degradation, as compared with over commerical titania (Degussa P25). similar phenomenon also liquid-phase methyl orange. The characterization photocatalysts series joint techniques, including X-ray diffraction, transmission...

10.1021/jp909855p article EN The Journal of Physical Chemistry C 2010-01-22

Heterogeneous photocatalysis is a promising strategy for addressing the worldwide environmental pollution and energy shortage issues. However, unlike TiO2 with good photostability, intrinsic drawback of photoinduced decomposition, i.e., photocorrosion, semiconductors significantly challenges durable photocatalysis. In this review, photocorrosion mechanisms typical different characterization methods proposed monitoring process semiconductor-based composite photocatalysts are elaborated....

10.1021/acscatal.9b00313 article EN ACS Catalysis 2019-04-11

Photocatalytic conversion of diluted CO2 into solar fuel is highly appealing yet still in its infancy. Herein, we demonstrate the metal-node-dependent performance for photoreduction by constructing Ni metal-organic framework (MOF) monolayers (Ni MOLs). In (10 %), MOLs exhibit a highest apparent quantum yield 1.96 % with CO selectivity 96.8 %, which not only exceeds reported systems but also superior to most catalysts pure . Whereas isostructural Co almost inactive , indicating dependent on...

10.1002/anie.201811545 article EN Angewandte Chemie International Edition 2018-11-07

Coupling ZnO with carbon materials using a suitable integration method to form ZnO–carbon composites has been established as promising strategy ameliorate the photocatalytic performance of semiconductor ZnO. In this perspective article, we describe recent advances and current status enhancing activity anti-photocorrosion by coupling versatile materials, e.g., C60, nanotube, graphene other materials. The primary roles in boosting photoactivity photostability have outlined illustrated some...

10.1039/c4cp02189d article EN Physical Chemistry Chemical Physics 2014-07-02

A simple, low‐temperature synthesis approach is reported for planting CdS‐sensitized 1D ZnO nanorod arrays on the 2D graphene (GR) sheet to obtain ternary hierarchical nanostructures, during which oxide (GO) as precursor of GR acts a flexible substrate formation arrays. The CdS‐1D ZnO‐2D hybrids can serve an efficient visible‐light‐driven photocatalyst selective organic transformations. fast electron transport nanorods, well‐known electronic conductivity GR, intense visible‐light absorption...

10.1002/adfm.201402443 article EN Advanced Functional Materials 2014-10-13

Abstract At present, the technological groundwork of atomically thin two-dimensional (2D) hetero-layered structures realized by successive film epitaxial growth is in principle constrained lattice matching prerequisite as well low yield and expensive production. Here, we artificially coordinate ultrathin 2D metal chalcogenides via a highly scalable self-surface charge exfoliation electrostatic coupling approach. Specifically, bulk are spontaneously exfoliated into layers...

10.1038/ncomms14224 article EN cc-by Nature Communications 2017-02-01

10.1016/j.apsusc.2015.03.050 article EN Applied Surface Science 2015-03-25

We report a simple and general approach to improve the transfer efficiency of photogenerated charge carriers across interface between graphene (GR) semiconductor CdS by introducing small amount metal ions (Ca2+, Cr3+, Mn2+, Fe2+, Co2+, Ni2+, Cu2+, Zn2+) as "mediator" into their interfacial layer matrix, while intimate contact GR is maintained. This strategy can not only significantly visible-light-driven photoactivity GR–CdS composites for targeting selective photoredox reaction, including...

10.1021/nn405242t article EN ACS Nano 2013-12-04

One-dimensional (1D) CdS@TiO₂ core-shell nanocomposites (CSNs) have been successfully synthesized via a two-step solvothermal method. The structure and properties of 1D (CdS@TiO₂ CSNs) characterized by series techniques, including X-ray diffraction (XRD), ultraviolet-visible-light (UV-vis) diffuse reflectance spectra (DRS), field-emission scanning electron microscopy (FESEM), photoluminescence (PL), spin resonance (ESR) spectroscopy. results demonstrate that is formed coating TiO₂ onto the...

10.1021/am302074p article EN ACS Applied Materials & Interfaces 2012-11-06
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