Study of g-C3N4/BTO composite photocatalyst with ferroelectric polarization under ultrasound
Source abstract
Abstract
Herein, g-C3N4/BTO composite photocatalyst were prepared using melamine, Bi2O3, TiO2, NaCl, and KCl as starting raw materials, and the effect of ferroelectric polarization on photocatalytic properties of g-C3N4/BTO was also investigated. With the increase in the molar percentage of doped BTO samples, the number of square sheet structures has significantly increased, and the tetragonal lamellar structure of BTO samples has further grown, then the wafer size has significantly increased. The degradation performance only degraded less than 20% of RhB under 100 min at the visible light without ultrasound, while, due to the fact that the electric field formed by piezoelectric material is much larger than the defect electric field, which promotes the separation and transmission of carriers, the sample exhibits excellent piezoelectric synergistic photocatalytic effect under ultrasound, especially, g-C3N4/BTO-4 sample can degrade 88.3% of RhB under ultrasound and light conditions within 30 min, demonstrating the potential and huge application of piezoelectric photocatalytic materials
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Research context
OpenAlex topics: Advanced Photocatalysis Techniques · Perovskite Materials and Applications · Gas Sensing Nanomaterials and Sensors
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References (16)
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