Modeling and optimization of a photocatalytic process: Degradation of endocrine disruptor compounds by Ag/ZnO

Jasso-Salcedo, Alma Berenice; Hoppe, Sandrine; Pla, Fernand; Escobar-Barrios, Vladimir Alonso; Camargo, Mauricio; Meimaroglou, Dimitrios

doi:10.1016/j.cherd.2017.10.012

Cited by 18 publications

(6 citation statements)

References 49 publications

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“…This work aimed to understand and improve the photocatalytic efficiency of ZnO over the photodegradation, in batch and continuous systems, of water contaminants, particularly endocrine disrupting compounds such as BPA. It is part of a wider study made of three complementary steps related to: the synthesis of Ag/ZnO nanoparticles, their immobilization inside of a cross‐linked PAA matrix, and the evaluation and the optimization of the photocatalytic activity of the obtained Ag/ZnO‐PAA composite …”

Section: Discussionmentioning

confidence: 99%

Surface modification and immobilization in poly(acrylic acid) of Ag/ZnO for photocatalytic degradation of endocrine‐disrupting compounds

Jasso-Salcedo

Meimaroglou

Hoppe

et al. 2016

J of Applied Polymer Sci

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Silver‐modified ZnO particles (Ag/ZnO) are effective catalysts for the photodegradation of water pollutants such as bisphenol‐A. However, until now, their use in continuous processes was back‐drawn because of difficulties associated with their recovery. To overcome this problem, the present work aimed at immobilizing Ag/ZnO in cross‐linked poly(acrylic acid) ‐PAA‐. Ag/ZnO was first silanized using (3‐glycidyloxypropyl)trimethoxysilane and thoroughly dispersed in a water‐acrylic acid solution. The suspension was then submitted to radical polymerization in presence of a cross‐linker (N,N′‐Methylenebisacrylamide). The resulting composites were characterized in terms of chemical structure, morphology, crystallinity, thermal properties, and photostability. Their analyses showed that the silanized particles were chemically anchored to PAA and homogeneously distributed in the matrix. UV‐assisted photocatalysis of bisphenol‐A aqueous solutions showed that immobilized Ag/ZnO can achieve photodegradation performances comparable to pure Ag/ZnO and allows its use in successive cycles and, consequently, in continuous processes. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 43528.

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Section: Discussionmentioning

confidence: 99%

Surface modification and immobilization in poly(acrylic acid) of Ag/ZnO for photocatalytic degradation of endocrine‐disrupting compounds

Jasso-Salcedo

Meimaroglou

Hoppe

et al. 2016

J of Applied Polymer Sci

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“…The typical input feed-forward multilayer ANN (MLP) was combined with a training algorithm for ANN modeling at this level. MLPs are straightforward universal approximators and are frequently considered for modeling physicochemical processes (Jasso-Salcedo et al, 2017;Moghri et al, 2017).…”

Section: Artificial Neural Network Modelingmentioning

confidence: 99%

Waste valorization as low-cost media engineering for auxin production from the newly isolated Streptomyces rubrogriseus AW22: Model development

Alloun

Berkani²,

Benaissa³

et al. 2023

Chemosphere

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“…This is not a trivial problem in photocatalysis and artificial neural network tools (ANNs) do not demand of academic expertise for a fast implementation; for example, in the industry sector. The reader can consult [3] for the approach that Meimaroglou and collaborators follow to assess ZnO photocatalyst structure-photocatalytic performance associations toward the maximization of the photocatalytic efficiency. The first two challenges are addressed in the present chapter.…”

Section: Zinc Oxidementioning

confidence: 99%

“…Furthermore, 1%Ag/ZnO-PD11,1 photocatalytic activity is 370% faster than ZnO attributed to the photoexcited electron trapping in the metallic primary (e À /h + pair) and secondary active species (free radicals, i.e., • OH) for the oxidation of bisphenol-A. The effect of pH, photocatalyst dosage, and bisphenol-A concentration on the kinetic rate constant were also studied extensively and reported [3].…”

Section: Zno Modification By Inorganic Molecules: Silvermentioning

confidence: 99%

Modified Metallic Oxides for Efficient Photocatalysis

Escobar-Barrios¹,

Rodríguez²,

Rincón³

et al. 2019

Photocatalysts - Applications and Attributes

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The aim of the chapter is to present modified materials like alternatives for conventional photocatalyst such as titanium dioxide. Discussion about silver/graphene nanoparticlesmodified zinc oxide for the degradation of pollutants like triclosan or bisphenol A, both considered as endocrine disruptors, which affect the hormonal development of humans, is presented. The best conditions to obtain the highest photodegradation degree are established. In addition, the bismuth oxychloride has gained attention during the last 5 years for photocatalysis. In accordance, the obtained results for phenol photodegradation, using such oxychloride, are also presented. In the chapter, the characterization of photocatalyst is reported along with the proposal for mechanisms of action for the modified ZnO photocatalyst and the bismuth oxychloride.

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Modeling and optimization of a photocatalytic process: Degradation of endocrine disruptor compounds by Ag/ZnO

Cited by 18 publications

References 49 publications

Surface modification and immobilization in poly(acrylic acid) of Ag/ZnO for photocatalytic degradation of endocrine‐disrupting compounds

Surface modification and immobilization in poly(acrylic acid) of Ag/ZnO for photocatalytic degradation of endocrine‐disrupting compounds

Waste valorization as low-cost media engineering for auxin production from the newly isolated Streptomyces rubrogriseus AW22: Model development

Modified Metallic Oxides for Efficient Photocatalysis

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