Two major challenges facing mankind are energy shortage and environmental pollution. They seriously affect people's quality of life, and even threaten the survival and development of mankind. Semiconductor photocatalysis technology is considered to be an ideal new technology to meet two major challenges with its unique advantages in renewable energy preparation and environmental purification. Since its establishment at the end of 2008, the research group has been conducting research work around the physics of photocatalytic materials.
Main research directions:
(1) Visible light-responsive photocatalytic materials;
(2) Low-dimensional photocatalytic materials;
Summary of research works
1. Researches from Sep. 2005- Dec. 2008:
My research work mainly concerns the synthesis, structural characterization, photophysical and photocatalytic properties study of Nb-based complex metal oxides. The major goals of my research include: (i) Understanding the effect of preparation method on the photocatalytic activity; (ii) Understanding the effect of electronic structure on photocatalytic activity for organic compound decomposition under visible light irradiation; (iii) Optimizing the photocatalytic properties of AgNbO3-based materials by bulk and surface modification. The major research outcomes include:
2. Researches from Dec. 2008- 2011:
My present research interests are (1) new visible light active photocatalyst; (2) the photoelectrochemical property of photoelectrode; The major goals of my research include: (i) Some Sb-based photocatalysts were developed and investigated for the photocatalytic activity of RhB degradation, such as AgxSbyOz, N-doped ZnSbO3 and N-doped H2Sb2O6; (ii)composite photocatalysts: N-NaNbO3/C3N4 and TiO2/C3N4. (iii) Band structure and photoelectrochemical properties of some AgNbO3-based solid solution photocatalysts, such as AgNbO3-NaNbO3 and AgNbO3-SrTiO3, were observed.
3. Researches from 2012-present
Recently, I focus on understanding the photocatalytic activity of the special crystal facet. The major goals include: (i) The order of the photocatalytic activity of NaNbO3 (100), (110) and (111) crystal planes was identified. (ii) The effect of the substrates on the photocatalytic activity. For example, SrTiO3 and LaAlO3 substrate for the photocatalytic activity of SrTiO3 thin film. (iii) Investigation of anisotropy in photocatalytic activity of ZnO. ZnO (110) exhibits the highest activity among three-low indexed crystal planes. And the ZnO (001) on c-face sapphire had the higher activity due to the higher surface energy and surface conductance.
4. Researches from 2018-present
Now, we focus on the preparation, photophysical and photocatalytic properties of BiVO4 single crystal thin film. We try to understand the growth of epitaxial thin film and build the heterostructure to improve the photocatalytic performance.
Publications
2020年
1. Zhao, M.; Gu, Y.; Gao, W.; Cui, P.; Tang, H.; Wei, X.; Zhu, H.; Li, G.; Yan, S.; Zhang, X.; Zou, Z., Atom vacancies induced electron-rich surface of ultrathin Bi nanosheet for efficient electrochemical CO2 reduction. Appl. Catal. B: Environ. 2020, 266, 118625.
2. Zhang, Z.; Shi, Y.; Li, C.; Fu, Y.; Zhang, F.; Li, G., Enhanced photoluminescence emission and thermal stability in diamond-like framework contained K(Sr, Ba)BP2O8:Eu3+ red phosphors via composition modification. Journal of Luminescence 2020, 219, 116885.
3. Zhang, Y.; Li, G.*, Recent Advances of Epitaxial BiVO4 Thin Film: Preparation and Physical and Photoelectrochemical Properties. Brazilian Journal of Physics 2020, 50, (2), 185-191.
4. Yu, Q.; Zhang, F.; Li, G.*, Structure, morphology and photocatalytic performance of BiVO4 nanoislands covered with ITO thin film. Journal of Materials Science: Materials in Electronics 2020, 31, (9), 7035-7043.
5. Meng, L.; Kou, S.; Zhang, F.; Li, C.; Li, G.*, Can the phase-pure BiVO4 (010) epitaxial film be fabricated with a stoichiometric target? J Phys D Appl Phys 2020, 53, (22), 225103.
6. Kou, S.; Yu, Q.; Meng, L.; Zhang, F.; Li, G.*; Yi, Z.*, Photocatalytic activity and photocorrosion of oriented BiVO4 single crystal thin films. Catal Sci Technol 2020, 10, (15), 5091-5099.
7. Fu, Y.; Zhang, Z.; Zhang, F.; Li, C.; Liu, B.; Li, G., Electronic structure, energy transfer mechanism and thermal quenching behavior of K3YB6O12:Dy3+, Eu3+ phosphor. Opt Mater 2020, 99, 109519.
2019年
1. Zhang, Z. Z.; Zhang, F.; Li, G. Q.; Zhang, J.; Zhang, W. F., Red-emitting phosphor series: Ca9Y(PO4)7(1-x)(VO4)7x:Eu3+ (x = 0 − 1) with improved luminescence thermal stability by anionic polyhedron substitution. Journal of Materials Science: Materials in Electronics 2019, 30, (9), 8838-8846.
2. Yu, Q.; Li, G.*; Zhang, F., Enhanced photocatalytic activity and charge transfer of a TiO2/BiVO4 nanostructured composite. Catal Sci Technol 2019, 9, 5333.
3. Li, G.; Yang, Z.; Zhang, X.; Li, G.; Sun, X.; Zhang, W., Origin of Resistance Switching and Regulation of the Resistance Stability by the Interface State Density on the Pt/Nb:SrTiO3 Interface. physica status solidi (a) 2019, 216, (18), 1900125.
4. Li, G.*; Shen, Q.; Yang, Z.; Kou, S.; Zhang, F.; Zhang, W.; Guo, H.; Du, Y.*, Photocatalytic behaviors of epitaxial BiVO4 (010) thin films. Appl. Catal. B: Environ. 2019, 248, 115-119.
5. Guan, Z.; Pan, J.; Li, Q.; Li, G.; Yang, J., Boosting Visible-Light Photocatalytic Hydrogen Evolution with an Efficient CuInS2/ZnIn2S4 2D/2D Heterojunction. ACS Sustainable Chemistry & Engineering 2019, 7, (8), 7736-7742.
2018年
1. Zhang, K. H. L.; Li, G.; Spurgeon, S. R.; Wang, L.; Yan, P.; Wang, Z.; Gu, M.; Varga, T.; Bowden, M. E.; Zhu, Z.; Wang, C.; Du, Y., Creation and Ordering of Oxygen Vacancies at WO3-delta and Perovskite Interfaces. ACS Appl. Mater. Interfaces 2018, 10, (20), 17480-17486.
2. Wang, S.; Sun, X.; Li, G. H.; Jia, C.; Li, G. Q.; Zhang, W., Study on the Multi-level Resistance-Switching Memory and Memory-State-Dependent Photovoltage in Pt/Nd:SrTiO3 Junctions. Nanoscale Res. Lett. 2018, 13, (1), 18.
3. Sun, X.-W.; Jia, C.-H.; Liu, X.-S.; Li, G.-Q.; Zhang, W.-F., Bias polarity-dependent unipolar switching behavior in NiO/SrTiO3 stacked layer. Chinese Physics B 2018, 27, (4), 047304.
4. Pan, H.; Wang, B.; Zhang, F.; Zhang, W.; Li, G.*, Preparation and Physical and Photocatalytic Activity of a New Niobate Oxide Material Containing NbO4 Tetrahedra. Int. J. Photoenergy 2018, 2018, 8516356.
5. Li, G.*; Kou, S.; Zhang, F.; Zhang, W.; Guo, H.*, Target stoichiometry and growth temperature impact on properties of BiVO4 (010) epitaxial thin films. CrystEngComm 2018, 20, 6950.
6. Guan, Z.; Xu, Z.; Li, Q.; Wang, P.; Li, G.; Yang, J., AgIn5S8 nanoparticles anchored on 2D layered ZnIn2S4 to form OD/2D heterojunction for enhanced visible-light photocatalytic hydrogen evolution. Appl. Catal. B: Environ. 2018, 227, 512-518.
7. Guan, Z.; Wang, P.; Li, Q.; Li, G.; Yang, J., Constructing a ZnIn2S4 nanoparticle/MoS2-RGO nanosheet 0D/2D heterojunction for significantly enhanced visible-light photocatalytic H2 production. Dalton Trans. 2018, 47, (19), 6800-6807.
8. Chen, H.; Zhang, F.; Zhang, W.; Du, Y.; Li, G.*, Negative impact of surface Ti3+ defects on the photocatalytic hydrogen evolution activity of SrTiO3. Appl Phys Lett 2018, 112, (1), 013901.
9. Chen, H.; Zhang, F.; Sun, X.; Zhang, W.; Li, G.*, Effect of reaction atmosphere on photodeposition of Pt nanoparticles and photocatalytic hydrogen evolution from SrTiO3 suspension system. Int. J. Hydrogen Energ. 2018, 43, (10), 5331-5336.
