Chemical Research in Chinese Universities ›› 2022, Vol. 38 ›› Issue (6): 1553-1560.doi: 10.1007/s40242-022-2129-3

• Articles • Previous Articles    

A Multifunctional {P2Mo5}-based Hybrid Applying to Catalysis, Electrocatalysis and Dye Adsorption

LIU Xiaodong, WANG Xiangchen, XU Na, ZHANG Zhong, LI Xiaohui, LIU Guocheng, WANG Xiuli   

  1. Liaoning Professional Technology Innovation Center of Liaoning Province for Conversion Materials of Solar Cell, College of Chemistry and Materials Engineering, Bohai University, Jinzhou 121013, P. R. China
  • Received:2022-04-07 Online:2022-12-01 Published:2022-12-06
  • Contact: WANG Xiuli E-mail:wangxiuli@bhu.edu.cn
  • Supported by:
    This work was supported by the National Natural Science Foundation of China(Nos. 21971024, 21671025, 22101030), the Liaoning Revitalization Talents Program, China(No.XLYC190211), the Doctoral Scientific Research Foundation of Liaoning Province, China(No.2021-BS-255), and the Doctoral Scientific Research Foundation of Bohai University, China(No.0520bs022).

Abstract: As a common environmental pollutant, thioether can cause serious environmental pollution, so selective oxidation of thioether has become one of the current research hotspots. In this paper, an inorganic-organic hybrid based on a Standberg-type polyoxometalate,[Hbiz]5[HP2Mo5O23]·5H2O(1)(biz=benzimidazole), was obtained by adjusting pH under hydrothermal conditions. The structure was characterized by infrared spectroscopy, thermogravimetric analysis, and single-crystal X-ray diffraction. Compound 1 can be used as an excellent catalyst for the oxidation of thioanisole. The experimental results showed that thioanisole could be catalytically oxidized to methyl phenyl sulfoxide by compound 1 as a catalyst within 40 min. The conversion rate and selectivity reached 99%. Compound 1 had good cycling stability as a heterogeneous catalyst. In addition, the electrocatalytic reduction of H2O2 and Cr2O72‒ for hybrid 1 was preliminarily investigated. In addition, the adsorption performance of hybrid 1 on cationic dye crystal violet and methylene blue was tested, and the adsorption efficiencies can reach 98.5% and 86.3%, respectively.

Key words: Polyoxometalate, Catalysis, Electrocatalysis, Dye adsorption