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Centros activos ricos en electrones y pobres en electrones inducidos por acoplamiento de interfaz para mejorar la

Ruya Chen¹, Dongchen Lv², Jiayi Gao¹

¹Zhejiang Key Laboratory of Solid Waste Pollution Control and Resource Utilization, School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, China.

Journal of colloid and interface science

|August 22, 2025

Resumen

Este estudio introduce un nuevo compuesto Fe2O3/Co3O4 para combatir la contaminación del agua por antibióticos. El material utiliza un campo eléctrico interno para activar el peroximonosulfato (PMS) para la eliminación eficiente de ofloxacina.

Área de la Ciencia:

Ciencias del medio ambiente
Ciencias de los materiales
Química

Sus antecedentes:

La contaminación del agua con antibióticos plantea un importante desafío para el medio ambiente y la salud.
Las técnicas efectivas de saneamiento son cruciales para abordar este problema.
El desarrollo de materiales avanzados para la degradación de contaminantes es un área de investigación clave.

Objetivo del estudio:

Fabricar un compuesto de Fe2O3/Co3O4 con un campo eléctrico interno para mejorar la remediación de contaminantes.
Investigar el mecanismo de activación del peroximonosulfato (PMS) impulsado por el campo eléctrico interno.
Evaluar la eficacia del compuesto en la eliminación de la loxacina de las aguas residuales.

Principales métodos:

Fabricación de compuestos de Fe2O3/Co3O4 mediante un método sencillo.
Caracterización de las propiedades del compuesto, centrándose en el campo eléctrico interno.
Utilizando el compuesto en un sistema impulsado por PMS para degradar la ofloxacina.
Prueba del rendimiento en un microrreactor para el tratamiento de aguas residuales.

Principales resultados:

El campo eléctrico interno en Fe2O3/Co3O4 facilitó la transferencia de carga y el transporte de electrones.
Se formaron regiones distintas ricas en electrones y deficientes en electrones, lo que permitió la oxidación de PMS a SO5•− y 1O2.
El sistema Fe2O3/Co3O4-PMS demostró una excelente eficacia en la eliminación de la loxacina.
Se observó un rendimiento satisfactorio en el tratamiento de aguas residuales que contienenloxacina utilizando un microrreactor.

Conclusiones:

El campo eléctrico interno mejora significativamente la activación de PMS para la degradación de antibióticos.
El compuesto Fe2O3/Co3O4 tiene un gran potencial para la remediación de aguas residuales.
Esta investigación proporciona información valiosa sobre el papel de los campos eléctricos internos en los procesos catalíticos.

Palabras clave:

Mecanismo de activación El antibiótico Campo eléctrico interno Vía no radical Peroximonosulfato y sus derivados

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