Piezoelectric Catalytic Degradation of Organic Dyestuff by Ca2+ Doped Ferroelectric BaTiO3 Nanoparticles

WU Hongju; WU Shenglin; CHANG Junyao

doi:10.19554/j.cnki.1001-3563.2026.19.003

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Packaging Engineering ›› 2026, Vol. 47 ›› Issue (19) : 22-28. DOI: 10.19554/j.cnki.1001-3563.2026.19.003

Advanced Materials

Piezoelectric Catalytic Degradation of Organic Dyestuff by Ca²⁺Doped Ferroelectric BaTiO₃ Nanoparticles

WU Hongju^1,*, WU Shenglin², CHANG Junyao¹

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Abstract

The work aims to utilize the unique piezoelectric catalytic properties of ferroelectric materials based on the piezoelectric effect to improve the low efficiency of piezoelectric catalytic degradation of organic dyes in printing and dyeing wastewater by ferroelectric barium titanate (BT) particles. Ca²⁺-doped nano-BT, namely calcium barium titanate Ba_1-_xCa_xTiO₃ (BCT) (x was the amount of substance, measured in moles), was prepared by the sol-gel method. The effects of Ca²⁺ doping amount and calcination temperature on the structure of BCT and its piezoelectric catalytic degradation performance for organic dyes were investigated. BCT synthesized at a calcination temperature of 700 °C with a Ca²⁺ doping amount of 0.10 exhibited the optimal degradation efficiency for Rhodamine B (RhB) dye (94.35%), while BCT synthesized at 700 °C with a Ca²⁺ doping amount of 0.20 showed the best degradation performance for Methyl Orange (MO) dye. The nano-BCT piezoelectric catalyst designed and synthesized in this work exhibits excellent degradation effects on RhB and MO, and is expected to be applied in the degradation of organic dyes.

Key words

nanoparticles / degradation properties / barium calcium titanate / rhodamine B / methyl orange / piezoelectric catalysis

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WU Hongju, WU Shenglin, CHANG Junyao. Piezoelectric Catalytic Degradation of Organic Dyestuff by Ca²⁺Doped Ferroelectric BaTiO₃ Nanoparticles[J]. Packaging Engineering. 2026, 47(19): 22-28 https://doi.org/10.19554/j.cnki.1001-3563.2026.19.003

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