Publications (227)
ARTICLE
Growth and characterization of WSe2 single crystals usingTeCl4 as transport agent
Moussa Bougouma, Bernard Nisol, Thomas Doneux, Boubié Guel, Tiriana Segato, François Reniers, Marie-Paule Delplancke-Ogletree, Jean B. Legma, Claudine Buess-Herman,
The growth of WSe2 single crystals, using TeCl4 as transport agent was performed successfully from slowly cooled polycrystalline powders as precursors. The resulting single crystals were characterized by X-ray diffraction (XRD) and their surfaces examined by scanning electron microscopy (SEM) presented fewer defects than single crystals prepar(...)
A1. Characterization; A1. Crystal morphology; A2. Single crystal growth; B1. Inorganic compounds; B2. Semiconducting materials; B3. Solar cells
ARTICLE
Direct and simultaneous quantifcation of rutin and quercetin in natural fruits base on purifed Arabic Gum modifed carbon paste electrode
Serge Mbokou Foukmeniok, Ousmane Ilboudo, Yssouf Karanga, Issa Tapsoba, Evangéline Njanja & Ignas Tonle Kenfack
Arabic gum was purified and used as modifier of carbon paste electrode (PAG-CPE) for the simultaneous determination of quercetin (QT) and rutin (RT) in 0.1 M phosphate buffer solution, pH 6.0. Fourier transform infrared spectroscopy was used for the identification of different chemical functional groups present at the surface of the raw and th(...)
Mots clés non renseignés
ARTICLE
Déterminants de l’adoption des bonnes pratiques de gestion durable des terres dans un contexte de changement climatique au Nord Bénin : cas de la fumure organique
Kamarou Din ADEBIYI, Stéphanie MAIGA-YALEU, Kassimou ISSAKA Moudachirou AYENA et Jacob Afouda YABI
L'un des problèmes majeurs qui affectent la production agricole dans le Nord du Bénin, est la baisse de la fertilité des sols. En réponse à ce phénomène les agriculteurs s‟y adaptent à travers l'adoption des bonnes pratiques de Gestion Durable des Terres (GDT) parmi lesquelles l‟utilisation de la fumure organique. Cette étude a pour objectif l(...)
Dégradation des sols, adaptation, gestion durable des terres, céréales
ARTICLE
New electrochemical carbon paste electrode (CPE) based on Arabic Gum modifier and dedicated to 4-aminophenol.
Serge Mbokou Foukmeniok, Ousmane Ilboudo, Evangéline Njanja, Issa Tapsoba, Maxime Pontie & Ignas Tonle Kenfack
Arabic Gum (AG) modified carbon paste electrode (CPE) was developed for the first time and used for sensitive detection of 4-aminophenol (PAP) in real samples. Energy dispersive X-ray spectroscopy and scanning electron microscopy were respectively used for the elemental and morphological characterization of unmodified and modified CPEs. Electr(...)
Mots clés non renseignés
ARTICLE
A study of cadmium, copper and lead by two clays from Burkina Faso
Brahima Sorgho, Boubié Guel, Lamine Zerbo, Moussa Gomina, Philippe Blanchart,
Water pollution caused by natural and anthropogenic causes become a major problem for many countries around the world in trying to find adequate and accessible means of treating polluted water. For more than a decade, research is focused on local adsorbent materials such as clays. It is in this dynamic that two clays extracted in Burkina Faso(...)
Clay; adsorption; heavy metals; waste water; removal
ARTICLE
Copper octacarboxyphthalocyanine as sensitizer of graphitic carbon nitride for efficient dye degradation under visible light irradiation
Seydou Ouedraogo , Bilel Choucheneb, , Christophe Desmarets , Thomas Gries , Lavinia Balane , René Fournet , Ghouti Medjahdi , Karifa Bayo , Raphaël Schneiderb
In this paper, copper octacarboxyphthalocyanine (CuPc) was demonstrated to be an efficient photosensitizer of
graphitic carbon nitride (g-CN) for the degradation of dyes like Orange II or Methylene Blue under visible light
irradiation. UV–vis absorption, photoluminescence and photocurrent measurements demonstrate that CuPc not
only allows t(...)
Mots clés non renseignés
ARTICLE
Préparation et études vibrationnelle et électronique de complexes de la phtalocyanine d’or avec des ligands axiaux pyridine et pyridines substituées
Ali Sanda BAWA, Mabinty Bayo-BANGOURA, Bertrand OUEMEGA et Karifa BAYO
Les phtalocyanines de nombreux éléments périodiques ont été préparées et étudiées.
Toutefois, il existe très peu de données disponibles sur la phtalocyanine d’or. Ce travail a pour
objectif d’apporter une contribution à une meilleure connaissance de la structure électronique de ce
complexe. La phtalocyanine d’or (AuPc) et une série de ses c(...)
Phtalocyanine d’or (AuPc), pyridine, pyridines substituées, spectrométrie vibrationnelle
ARTICLE
Preparation, vibrational and electronic studies of hexacoordinated complexes of iron octocarboxyphthalocyanine with pyridine axial ligands and Substituted pyridines, phosphine and phosphites
Lassané Tarpaga, Mabinty Bayo-Bangoura, Seydou Ouédraogo and Karifa Bayo
Iron phthalocyanine (FePc), iron octocarboxyphthalocyanine [(COOH)8FePc] and their complexes
carrying axial ligands were prepared and studied by vibrational and optical spectrometry. The ligands
used are: pyridine and its derivatives 3-Rpyridine (with R = CH3, OH, Cl and OHCH2), 4-Rpyridine
(with R = CH3, OH, CN and SH), phosphites and phos(...)
Iron phthalocyanine (FePc), iron octocarboxyphthalocyanine (COOH)8FePc, Pyridine, Phosphites, Phosphine, IR
ARTICLE
Sustainable approach to recover the hull waste of balanitesoegyptiaca for removal of fluoride from water
Marou GOUROUZA, Zeinabou MAHAMADOU, Mabinty BAYO-BANGOURA, Karifa BAYO, Anne BOOS
The presence of fluoride in water has become a major concern worldwide because of its chronic human
carcinogenic behavior. Developing easily accessible and environmentally friendly disposal strategies is therefore a
challenge for scientists. Heme-activated balaniteoegyptiaca shell carbon has been studied for its ability to adsorb
fluorine f(...)
hull waste of balanitesoegyptiaca ; fluoride, adsorption
ARTICLE
Greening Reversed-Phase Liquid Chromatography Methods Using Alternative Solvents for Pharmaceutical Analysis
Moussa Yabré, Ludivine Ferey, Touridomon Issa Som, Karen Gaudin
The greening of analytical methods has gained increasing interest in the field of pharmaceutical analysis to reduce environmental impacts and improve the health safety of analysts. Reversed-phase high-performance liquid chromatography (RP-HPLC) is the most widely used analytical technique involved in pharmaceutical drug development and manufac(...)
Mots clés non renseignés
ARTICLE
Préparation et études vibrationelle et electronique de complexes de la phtalalocyanine d’or avec des ligands axiaux thiolates
Ali Sanda BAWA, Mabinty Bayo-Bangoura, Seydou Ouédraogo, Lassané Tarpaga , Karifa Bayo
Nous avons préparé et étudié par spectrométries vibrationnelle et électronique une série de complexes de la
phtalocyanine d’or (AuPc) portant des ligands axiaux thiolates (RS- avec R = O2NPh-, PhCH2-, Ph-, CH3CH2- et CH3-).
L’analyse des spectres infrarouges dans le domaine 2000 cm-1 – 400 cm-1 confirme la réaction de la phtalocyanine d’or a(...)
phtalocyanine d’or (AuPc), thiolates, spectrométrie vibrationnelle
ARTICLE
On the interest of ambipolar materials for Gas sensing
Amelie Wannebroucq, Seydou Ouedraogo, Rita Meunier-Prest, Jean-Moise Suisse, Mabinty Bayo, Marcel Bouvet
Based on the electrochemical properties of a series of metallophthalocyanines this article shows that the
phthalocyanine bearing four alkoxy groups and twelve fluorine atoms behaves approximately as those
with eight fluorine atoms. This indicates that the electron-donating effect of one alkoxy group balances the
electro-withdrawing effect o(...)
Mots clés non renseignés
ARTICLE
Enhanced extraction of flavonoids from Odontonema strictum leaves with antioxidant activity using supercritical carbon dioxide fluid combined with ethanol
OUEDRAOGO Jean Claude W., DICKO Cedric, KINI Félix B., BONZI-COULIBALY Yvonne L., DEY Estera Szwajcer
Flavonoids were extracted from Odontonema strictum leaves by supercritical carbon dioxide, with ethanol. The effect of three independents variables (time, pressure and temperature) on the Total Flavonoid Content (TFC) were optimized by factorial investigation. The TFC and flavonoid recovery varies respectively from 99.33 to 247.78 mg/g of drie(...)
Odontonema strictum; Supercritical fluid extraction; Total flavonoid content; Response surface methodology; Antioxidant activity
ARTICLE
Preparation et etudes vibrationelle et electronique de complexes de la phtalalocyanine d’or avec des ligands axiaux phosphines et phosphites
Ali Sanda BAWA, Lassane Tarpaga, Mabinty Bayo-Bangoura, Seydou Ouédraogo, Karifa Bayo
Nous avons préparé et étudié par spectrométries optique et vibrationnelle une série de complexe de la
phtalocyanine d’or (AuPc) portant des ligands axiaux [PPh3, P(OMe)3, POH(OEt)2, P(OPh)3]. L’analyse des spectres
infrarouges dans le domaine 2000 cm-1-400 cm-1 confirme la réaction de la phtalocyanine d’or avec les différents ligands. Les co(...)
phtalocyanine d’or (AuPc), phosphine, phosphite, spectrométrie vibrationnelle
ARTICLE
Visual appearance durability as function of natural and acceleratedageing of electrophoretic styrene-acrylic coatings: Influence of yellowpigment concentration
Tambi Ramdé, Luiz Gustavo Ecco, Stefano Rossi
Organic coatings are extensively used in many fields of engineering such as automotive or architectural industries for protection of the metallic structure against corrosion and to deliver visual aspects to the coated item. High quality paints either for outdoor or indoor applications require longer stability of their visual appearance alongsi(...)
Styrene-acrylic coating, Yellow pigment, Color evolution, UV-B test, Natural ageing