Autor según el artículo: Tran, TV; Alsaiari, M; Harraz, FA; Nabgan, W; Nguyen, DTD; Nguyen, CV
Departamento: Enginyeria Química
Autor/es de la URV: Nabgan, Walid
Palabras clave: Zno particles Wastewater treatment Taguchi design Photocatalytic degradation Chrysanthemum spp. flower extract
Resumen: The pollution of synthetic dyes in wastewater exerts many negative impacts on the environment and human health. There is an increasing demand for the degradation of dyes, with an emphasis on photocatalysis. Here, we investigated the bio-mediated synthesis of ZnO using Chrysanthemum spp. flower extract and its utilization for the removal of methylene blue dye under sunlight irradiation. The bandgap energy of green ZnO nanoparticles was determined to be 3.0. The Taguchi L9 (34) orthogonal array design was applied to optimize the photocatalytic degradation of methylene blue dye by green ZnO particles. Four parameters, including the initial concentration (10–50 mg/L), ZnO dosage (0.33–1.0 mg), contact time (30–120 min), and pH (4–10) of the solution, were surveyed based on the Taguchi design. We found that the test result (99.0%) at 10 mg/L was almost equivalent to the predicted value (99.5%) of degradation efficiency. The reaction mechanisms shed light on the major role of reactive oxygen species (•O2−, •OH). More importantly, the green ZnO particles could be reused for at least five cycles and demonstrated high stability.
Áreas temáticas: Water science and technology Water resources Interdisciplinar Geography, planning and development Geografía Geociências Fluid flow and transfer processes Environmental sciences Engenharias iii Engenharias i Ciencias sociales Ciências ambientais Ciências agrárias i Biochemistry Aquatic science
Acceso a la licencia de uso: https://creativecommons.org/licenses/by/3.0/es/
Direcció de correo del autor: walid.nabgan@urv.cat
Identificador del autor: 0000-0001-9901-862X
Fecha de alta del registro: 2024-07-20
Versión del articulo depositado: info:eu-repo/semantics/publishedVersion
Enlace a la fuente original: https://www.mdpi.com/2073-4441/15/12/2186
URL Documento de licencia: http://repositori.urv.cat/ca/proteccio-de-dades/
Referencia al articulo segun fuente origial: Water. 15 (12):
Referencia de l'ítem segons les normes APA: Tran, TV; Alsaiari, M; Harraz, FA; Nabgan, W; Nguyen, DTD; Nguyen, CV (2023). Taguchi L9 (34) Orthogonal Array Design for Photocatalytic Degradation of Methylene Blue Dye by Green ZnO Particles Biosynthesized by Chrysanthemum spp. Flower Extract. Water, 15(12), -. DOI: 10.3390/w15122186
DOI del artículo: 10.3390/w15122186
Entidad: Universitat Rovira i Virgili
Año de publicación de la revista: 2023
Tipo de publicación: Journal Publications
Repositori URV