Oxygen Vacancy Engineering of Bi₄Ti₃O₁₂ Piezocatalyst Driving In Situ H₂O₂ Evolution for Self-Cycled Fenton-Like Degradation of Pollutants

Inorganic Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: March 17, 2025

In this work, we synthesized a Bi4Ti3O12 piezocatalyst with surface oxygen vacancy (BTO-Ov) to facilitate in situ hydrogen peroxide (H2O2) production and establish piezocatalytic self-cycled Fenton-like system for degradation of pollutants. Notably, the H2O2 evolution rate from BTO-Ov catalyst reaches 558.8 μmol g–1 h–1 when utilizing pure water, significantly exceeding obtained BTO (274.6 h–1). Furthermore, can be enhanced 1091.6 addition ethanol as sacrificial agent endows robust stability. (BTO-Ov/Fe0), efficiency methyl orange (MO) dye pollutant achieve 91.9% within 20 min, coupled high kinetic coefficient 0.117 min–1, indicating excellent catalytic activity. Relevant characterization results reveal that introduction improves piezoelectricity, reduces band gap BTO, enhances charge carrier transfer separation, facilitates dual-channel reaction mechanism, thereby achieving superior performance. This work not only synthesis valuable chemicals but also offers cost-effective sustainable approach wastewater purification.

Language: Английский

Piezo-promoted Fe3+/Fe2+ cycling in Bi4Ti3O12/α-FeOOH heterojunction for enhanced Fenton-like degradation of refractory organic pollutants: A sustainable strategy and mechanism insights

Journal of Water Process Engineering, Journal Year: 2025, Volume and Issue: 74, P. 107831 - 107831

Published: April 28, 2025

Language: Английский

Ultrasound-assistant activation of peroxydisulfate by BiFeO3 for highly efficient elimination of antibiotic contaminants: Synergistic piezoelectric catalysis/Fenton-like activation mechanism and toxicity assessments of intermediates

Surfaces and Interfaces, Journal Year: 2024, Volume and Issue: unknown, P. 105730 - 105730

Published: Dec. 1, 2024

Language: Английский