Chem. J. Chinese Universities ›› 2021, Vol. 42 ›› Issue (12): 3561.doi: 10.7503/cjcu20210542

• Inorganic Chemistry • Previous Articles     Next Articles

Effect of Zn2+ Substituting Ga3+ on Structure and Photocatalytic Properties of Wurtzite β-CuGa1-xZnxO2 with Unequal Doping

YAO Mingcai1,2, YANG Qiang1, MENG Jian1, LIU Xiaojuan1,2()   

  1. 1.State Key Laboratory of Rare Earth Resource Utilization,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun 130022,China
    2.College of Applied Chemistry and Engineering,University of Science and Technology of China,Hefei 230026,China
  • Received:2021-07-30 Online:2021-12-10 Published:2021-09-23
  • Contact: LIU Xiaojuan E-mail:lxjuan@ciac.ac.cn
  • Supported by:
    the Natural Science Foundation of Jilin Province, China(20190201106JC);the China Academy of Engineering Physics?NSAF Joint Fund of National Natural Science Foundation of China(U2130114)

Abstract:

Functional ceramic material with unequal doping of Zn2+ at the Ga-site, β-CuGa1-xZnxO2, were synthesized via ion exchange method. Firstly, the crystal structure of the material was investigated by means of X-ray diffraction(XRD) and transmission electron microscopy(TEM). Furthermore, the thermal stability of the material was studied by in?situ high temperature X-ray diffraction(HT-XRD) and synchronous thermal analyzer(TG-DSC). Next, the optical properties of the material were assessed by UV-Vis diffuse scattering spectroscopy(UV-Vis DRS) and first principles calculations. Then, the effect of the introduction of Zn2+ at the Ga-site on the performance of the ceramic was evaluated by the degradation reaction of methyl orange(MO). The results showed that the introduction of Zn2+ is unfavorable to the degradation reaction. Finally, the degradation mechanism was investigated by photoluminescence spectroscopy(PL). In summary, based on the above experimental results, another possible method to improve the properties of β-CuGaO2 is proposed.

Key words: β-CuGa1-xZnxO2, Non-equivalent doping, Photo-catalytic degradation

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