Journal of Inorganic Materials ›› 2022, Vol. 37 ›› Issue (1): 45-50.DOI: 10.15541/jim20210127

• TOPICAL SECTION: Green Conversion of CO2 (Contributing Editor: OUYANG Shuxin, WANG Wenzhong) • Previous Articles     Next Articles

Iron-doping Enhanced Basic Nickel Carbonate for Moisture Resistance and Catalytic Performance of Ozone Decomposition

LI Bangxin1,2(), ZHANG Qian2(), XIAO Jie2, XIAO Wenyan2, ZHOU Ying1,2   

  1. 1. The Center of New Energy Materials and Technology, School of Materials Science and Engineering, Southwest Petroleum University, Chengdu 610500, China
    2. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, China
  • Received:2021-03-04 Revised:2021-05-01 Published:2022-01-20 Online:2021-05-25
  • Contact: ZHANG Qian, associate professor. E-mail: zhangqian@swpu.edu.cn
  • About author:LI Bangxin(1995-), male, Master candidate. E-mail: 1449569638@qq.com
  • Supported by:
    Science and Technology Major Projects Sichuan(2020ZDZX0008);Key R&D Program of Sichuan(2021YFSY0046)

Abstract:

Ozone pollution is taking more dominant position in China than PM2.5, traditional ozonolysis catalytic materials have limited performance in humid conditions. In this study, an iron-doped basic nickel carbonate catalyst (NiCH-Fe) was successfully fabricated via a facile hydrothermal method, which could stably decompose 2.14 μg/L ozone at 60% relative humidity for 12 h with nearly 100% removal ratio. The result of the Quartz Crystal Microbalance test showed that the water molecules adsorbed on the surface of NiCH-Fe were significantly reduced as compared with that adsorbed on pure NiCH, which were favorable for the competitive adsorption of ozone. Density functional theory results proved that Fe atoms were new sites instead of Ni atoms and had stronger adsorption capacity for ozone molecules. In addition, the XPS results demonstrated that the iron atoms serving as active sites were substantially stable in the reaction. Therefore, material doped with Fe provided excellent moisture resistance and long-term stability. This work provides an effective technical method for the development of materials with high moisture resistance ability for efficient ozone catalytic decomposition.

Key words: basic nickel carbonate, doping, ozone decomposition, moisture resistance

CLC Number: