Výsledky vyhledávání - "Wahiba Najjar"

Effect of Ce and Mn co-doping on photocatalytic performance of sol-gel TiO2

Autor: Imen Tbessi, Elies Molins, Sami Sayadi, Mónica Benito, Azza Touati, Wahiba Najjar, Jordi LIorca

Publikováno v: Recercat. Dipósit de la Recerca de Catalunya
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Universitat Politècnica de Catalunya (UPC)

Co-doped titanium dioxide was synthesized by doping with manganese (Mn) and cerium (Ce) through a sol-gel method for the degradation of diclofenac (DCF). The synthesized products were successfully characterized by X-ray diffraction (XRD), Raman spect

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c6bb87fbfb18c3381733e87797ecaa96
https://doi.org/10.1016/j.solidstatesciences.2018.12.004

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Silver and manganese co-doped titanium oxide aerogel for effective diclofenac degradation under UV-A light irradiation

Autor: Jordi Llorca, Wahiba Najjar, Sami Sayadi, Imen Tbessi, Elies Molins, Mónica Benito

The photodegradation of diclofenac from aqueous medium under UV-A light condition has been essayed using co-doped with manganese and silver TiO2 photocatalysts. X-ray diffraction, Raman spectroscopy, Scanning electron microscopy, Transmission electro

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::83ca1a2873b9ea373cf638262657a509
https://hdl.handle.net/2117/125814

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Photocatalytic degradation of bisphenol A in the presence of Ce–ZnO: Evolution of kinetics, toxicity and photodegradation mechanism

Autor: Olfa Bechambi, Lobna Jlaiel, Sami Sayadi, Wahiba Najjar

Publikováno v: Materials Chemistry and Physics. 173:95-105

Ce–ZnO (2 mol %) and undoped ZnO catalysts have been synthesized through hydrothermal method and characterized by X-ray diffraction (XRD), Nitrogen physisorption at 77 K; Fourier transformed infrared spectroscopy (FTIR), UV–Visible spectroscopy,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::689329b09b697610f11f753390c2af26
https://doi.org/10.1016/j.matchemphys.2016.01.044

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The nonylphenol degradation under UV irradiation in the presence of Ag–ZnO nanorods: Effect of parameters and degradation pathway

Autor: Wahiba Najjar, Olfa Bechambi, Sami Sayadi

Publikováno v: Journal of the Taiwan Institute of Chemical Engineers. 60:496-501

Ag–ZnO and pure ZnO nanorods have been synthesized by hydrothermal method. The structural, morphological, textural and optical properties of the samples were investigated. The result showed the existence of wurtzite ZnO structure and confirmed the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ea7195354a84f7fae9c79439f9991414
https://doi.org/10.1016/j.jtice.2015.11.017

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Photocatalytic degradation of textile wastewater in presence of hydrogen peroxide: Effect of cerium doping titania

Autor: Wahiba Najjar, Sami Sayadi, Azza Touati, Zouhaier Ksibi, Tijani Hammedi

Publikováno v: Journal of Industrial and Engineering Chemistry. 35:36-44

Ce–TiO 2 catalysts synthesized through sol–gel method were explored for textile wastewater photocatalytic degradation in presence of H 2 O 2 . Synthesized materials were characterized by X-ray diffraction, Raman spectroscopy, UV–visible diffuse

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e01194921b04f0ef4501af76f3c33ee5
https://doi.org/10.1016/j.jiec.2015.12.008

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Photocatalytic degradation of sulfur black dye over Ce-TiO2 under UV irradiation: removal efficiency and identification of degraded species

Autor: Lobna Jlaiel, Sami Sayadi, Wahiba Najjar, Azza Touati

Publikováno v: Euro-Mediterranean Journal for Environmental Integration. 4

TiO2 and Ce-TiO2 photocatalysts have been synthesized via sol–gel method and characterized by various techniques. Cerium incorporation maintains anatase phase formation, reduces the band gap energy, and inhibits the electron–hole recombination le

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::70d2ef6d99a2260a7c0f854c7119dfb1
https://doi.org/10.1007/s41207-018-0086-5

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Photocatalytic degradation of bisphenol A in the presence of C-doped ZnO: Effect of operational parameters and photodegradation mechanism

Autor: Wahiba Najjar, Olfa Bechambi, Sami Sayadi

Publikováno v: Journal of Industrial and Engineering Chemistry. 32:201-210

C-doped ZnO with different molar ratio of carbon content were synthesized by hydrothermal method. The samples were characterized by X-ray diffraction, nitrogen physisorption, Raman spectroscopy, Fourier transformed infrared, UV–vis diffuse reflecta

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::19fb734211c6075aa807b47845a9f7a8
https://doi.org/10.1016/j.jiec.2015.08.017

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Photocatalytic activity of ZnO doped with Ag on the degradation of endocrine disrupting under UV irradiation and the investigation of its antibacterial activity

Autor: Manel Chalbi, Sami Sayadi, Wahiba Najjar, Olfa Bechambi

Publikováno v: Applied Surface Science. 347:414-420

Ag-doped ZnO photocatalysts with different Ag molar content (0.0, 0.5, 1.0, 2.0 and 4.0%) were prepared via hydrothermal method. The X-ray diffraction (XRD), Nitrogen physisorption at 77 K, Fourier transformed infrared spectroscopy (FTIR), UV–-Visi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5465af967a06eb8567c18546215eacdd
https://doi.org/10.1016/j.apsusc.2015.03.049

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A compact process for the treatment of olive mill wastewater by combining wet hydrogen peroxide catalytic oxidation and biological techniques

Autor: Sami Sayadi, Wahiba Najjar, Samia Azabou, Mohamed Bouaziz, Abdelhamid Ghorbel

Publikováno v: Journal of Hazardous Materials. 183:62-69

A system based on combined actions of catalytic wet oxidation and microbial technologies for the treatment of highly polluted OMW containing polyphenols was studied. The wet hydrogen peroxide catalytic oxidation (WHPCO) process has been investigated

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::55b696a23a15728be16732c830d07134
https://doi.org/10.1016/j.jhazmat.2010.06.104

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Screening of Fe–BEA catalysts for wet hydrogen peroxide oxidation of crude olive mill wastewater under mild conditions

Autor: Abdelhamid Ghorbel, Wahiba Najjar, Sami Sayadi, Samia Azabou

Publikováno v: Applied Catalysis B: Environmental. 88:299-304

A series of Fe–BEA catalysts, differing in the amount of iron have been characterized by XRD, BET surface area, UV–vis spectroscopy and chemical analysis. The zeolite samples have been tested as heterogeneous catalysts for the wet hydrogen peroxi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::495873bc0280b05b538af3ef0c7e344f
https://doi.org/10.1016/j.apcatb.2008.11.023

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