Effect of Strontium Substitution on the Tribocatalytic Performance of Barium Titanate

Siyu Liu; Yaodong Yang; Yongming Hu; Wei-Feng Rao

doi:10.3390/ma16083160

Effect of Strontium Substitution on the Tribocatalytic Performance of Barium Titanate

Materials (Basel). 2023 Apr 17;16(8):3160. doi: 10.3390/ma16083160.

Authors

Siyu Liu¹, Yaodong Yang¹, Yongming Hu², Wei-Feng Rao¹

Affiliations

¹ Faculty of Mechanical Engineering, Shandong Institute of Mechanical Design and Research, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China.
² Hubei Key Laboratory of Ferro- and Piezoelectric Materials and Devices, Faculty of Physics & Electronic Science, Hubei University, Wuhan 430062, China.

Abstract

This study investigates the impact of Sr doping on the tribocatalytic performance of BaTiO₃ in degrading organic pollutants. Ba_1-xSr_xTiO₃ (x = 0-0.3) nanopowders are synthesized and their tribocatalytic performance evaluated. By doping Sr into BaTiO₃, the tribocatalytic performance was enhanced, resulting in an approximately 35% improvement in the degradation efficiency of Rhodamine B using Ba_0.8Sr_0.2TiO₃. Factors such as the friction contact area, stirring speed, and materials of the friction pairs also influenced the dye degradation. Electrochemical impedance spectroscopy revealed that Sr doping improved BaTiO₃'s charge transfer efficiency, thereby boosting its tribocatalytic performance. These findings indicate potential applications for Ba_1-xSr_xTiO₃ in dye degradation processes.

Keywords: barium strontium titanate; dye degradation; friction; substitution; tribocatalysis.

Abstract

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