Oxygen Vacancy Engineering of Bi4Ti3O12 Piezocatalyst Driving In Situ H2O2 Evolution for Self-Cycled Fenton-Like Degradation of Pollutants DOI
Xiaojuan Qiu, Aize Hao, Shanshan Hu

и другие.

Inorganic Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Март 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.

Язык: Английский

Oxygen Vacancy Engineering of Bi4Ti3O12 Piezocatalyst Driving In Situ H2O2 Evolution for Self-Cycled Fenton-Like Degradation of Pollutants DOI
Xiaojuan Qiu, Aize Hao, Shanshan Hu

и другие.

Inorganic Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Март 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.

Язык: Английский

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