Areli J. Hernandez-Guzman
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Areli J. Hernandez-Guzman has a total of 10 co-authors. Here are the top co-authors by number of shared publications:
- Alejandro Vega-Rios
Centro de Investigación en Materiales Avanzados, SC, Miguel de Cervantes #120, Chihuahua 31136, Chihuahua, Mexico
1 shared publication - Daniel M. Paredes-Molina
Dirección de Investigación Aplicada y Desarrollo, Centro de Innovación Aplicada en Tecnologías Competitivas, Calle Omega 201, León 37545, Guanajuato, Mexico
1 shared publication - Erick Roberto Bandala
NanRenewables LLC, 100 Seapoint Blv. Bldg 5, Savannah, GA 31404, USA
1 shared publication - Fabricio G. Mendez-Landin
Unidad Profesional Interdisciplinaria de Ingenierías Campus Guanajuato, Instituto Politécnico Nacional, Avenida Mineral de Valenciana 200 Col. Fraccionamiento Industrial Puerto Interior, Silao de la Victoria 36275, Guanajuato, Mexico
1 shared publication - Marilia Guillén
Laboratorio de Cristalografía, Departamento de Química, Universidad de Los Andes, Mérida 5101, Venezuela
1 shared publication - Martin Pacheco-Álvarez
Departamento de Química-DCNE, Universidad de Guanajuato, Cerro de la Venada s/n, Pueblito de Rocha, Guanajuato 36040, Guanajuato, Mexico
1 shared publication
Latest Publications
- Open Access
Structure–Dispersion–Performance Relationship in Fe-Functionalized Silicon Oxide for Enhanced Degradation of Recalcitrant Azo Dyes
Recalcitrant azo dyes in textile wastewater are a significant environmental concern due to their persistence and potential impacts on human and ecosystem health. Heterogeneous Fenton-like processes offer a promising approach for their removal, although catalyst performance depends strongly on the physicochemical characteristics of the active material. This study investigated Fe-functionalized silicon oxide (Fe-SiO) catalysts for sodium percarbonate (SPC)-activated removal of Reactive Orange 84 (RO84). The catalysts were prepared using silicon oxide supports with and without thermochemical pretreatment and different amounts of Fe during synthesis. Their structural, morphological, and elemental characteristics were evaluated by transmission electron microscopy (TEM), X-ray diffraction (XRD), and energy-dispersive X-ray spectroscopy (EDS), complemented by textural analysis. Increasing the amount of Fe used during synthesis shifted removal from adsorption-influenced to oxidation-associated, as reflected in the kinetic behavior. Thermochemical pretreatment promoted more homogeneous Fe dispersion and reduced aggregation in the S2 series, consistent with its higher catalytic response under several evaluated conditions. The PFO model empirically described the observed removal kinetics. Overall, the Fe-SiO materials showed potential for SPC-assisted RO84 removal under the evaluated conditions.
Open AccessStructure–Dispersion–Performance Relationship in Fe-Functionalized Silicon Oxide for Enhanced Degradation of Recalcitrant Azo Dyes
Recalcitrant azo dyes in textile wastewater are a significant environmental concern due to their persistence and potential impacts on human and ecosystem health. Heterogeneous Fenton-like processes offer a promising approach for their removal, although catalyst performance depends strongly on the physicochemical characteristics of the active material. This study investigated Fe-functionalized silicon oxide (Fe-SiO) catalysts for sodium percarbonate (SPC)-activated removal of Reactive Orange 84 (RO84). The catalysts were prepared using silicon oxide supports with and without thermochemical pretreatment and different amounts of Fe during synthesis. Their structural, morphological, and elemental characteristics were evaluated by transmission electron microscopy (TEM), X-ray diffraction (XRD), and energy-dispersive X-ray spectroscopy (EDS), complemented by textural analysis. Increasing the amount of Fe used during synthesis shifted removal from adsorption-influenced to oxidation-associated, as reflected in the kinetic behavior. Thermochemical pretreatment promoted more homogeneous Fe dispersion and reduced aggregation in the S2 series, consistent with its higher catalytic response under several evaluated conditions. The PFO model empirically described the observed removal kinetics. Overall, the Fe-SiO materials showed potential for SPC-assisted RO84 removal under the evaluated conditions.