Universidad Autónoma del Carmen, UNACAR
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funding vehicle for: Removal of nonylphenol polyethylene glycol (Npeg) with au-tio2 catalysts: Kinetic and initial transformation path

Consejo Nacional de Ciencia y Tecnología, CONACYT: 169404
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funding vehicle for: Removal of nonylphenol polyethylene glycol (Npeg) with au-tio2 catalysts: Kinetic and initial transformation path

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Universidad Autónoma de Nuevo León, UANL
type: Relationship
type: BFO_0000020
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type: Grant
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funding vehicle for: Removal of nonylphenol polyethylene glycol (Npeg) with au-tio2 catalysts: Kinetic and initial transformation path

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RDF description of Removal of nonylphenol polyethylene glycol (Npeg) with au-tio2 catalysts: Kinetic and initial transformation path - http://orbis.uaslp.mx/vivo/individual/scopus6489
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date: 2026-08-25T05:41:10
publisher: vivo
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Catalysts
publication venue for: Removal of nonylphenol polyethylene glycol (Npeg) with au-tio2 catalysts: Kinetic and initial transformation path
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Removal of nonylphenol polyethylene glycol (Npeg) with au-tio2 catalysts: Kinetic and initial transformation path
type: Generically Dependent Continuant
type: Article
page start: 1
artnum: 1205
estado: published
abstract: The purpose of this study was to evaluate the efficiency of the Au-TiO2 catalyst in the degradation of nonylphenol polyethylene glycol (NPEG). In the first part of the study, the catalyst was synthesized and characterized. Initially, the catalyst (TiO2 Degussa P-25) was doped with gold precursor salts (HAuCl4) at different concentrations (5, 10, and 15%25) and the photodeposition method with UV light. It was determined by diffuse reflectance (DF) and scanning electron microscopy (SEM) that the photodeposition method was effective for the inclusion of gold particles on the surface. The catalyst band gap showed a reduction to 2.9 e.v (compared to TiO2 Degussa P-25), and it was observed that the gold-doped catalyst showed absorption in the visible light range 500 to 600 nm. The percentage of deposited gold was determined by energy dispersive spectroscopy (EDS). In the second part of the study, various NPEG degradation experiments were performed; with the catalyst that showed the best conversion percentages of NPEG, the experimental data were analyzed using UV-Vis spectrophotometry and TOC (total organic carbon). With these results, a carbon-based mass balance and reaction kinetics were generated using the Langmuir–Hinshelwood (L–H) heterogeneous catalysis model. For the estimation of the kinetic constants, the non-linear regression of the Levenger–Marquardt algorithm was used. With these results, kinetic models of the degradation of the molecule and the generation and consumption of organic intermediate products (OIPs) were generated. © 2020 by the authors. Licensee MDPI, Basel, Switzerland.
has funding vehicle: Universidad Autónoma de Nuevo León, UANL
origen: scopus
type: Information Content Entity
has funding vehicle: Universidad Autónoma del Carmen, UNACAR
type: Continuant
accesstype: All Open Access, Gold, Green
related by: authorship_42189
most specific type: Document
related by: authorship_42192
doi: 10.3390/catal10101205
date time value: article date 6490
crisid: 6490
related by: authorship_42193
has funding vehicle: Consejo Nacional de Ciencia y Tecnología, CONACYT: 169404
type: Entity
issue: 10
has publication venue: Catalysts
volume: 10
related by: authorship_42194
freetext keyword: Ethoxylated alkylphenols; Gold titanium catalyst; Photocatalytic degradation
page end: 12
related by: authorship_42195
type: Document
most specific type: Article
type: Thing
related by: authorship_42190
e iscopus: 2-s2.0-85092741845
related by: authorship_42191