Publications (192)
ARTICLE
Efficiency of Two Laterites in Cyanide Removal from Aqueous Solutions: Equilibrium and Kinetic Studies
Djakaridja Sory, Yacouba Sanou, Raymond Kaboré, Samuel Paré
In the dynamic of drinking water supply in rural populations, water pollution by cyanide is one of challenges that impacts the process in the mining areas of Burkina Faso. The objective of this work was to assess the efficiency of laterite soils to remove cyanide from water. To do this, two laterites were prepared and characterized by spectros(...)
Adsorption, Characterization, Cyanide, Laterite, Water Resources
ARTICLE
Analysis, Quantification and Identification of Pesticides from Lettuce in Ouagadougou City (Burkina Faso)
Sarata Djinda, Yacouba Sanou, Samuel Paré
In Burkina Faso, chemical inputs are used massively in market gardening to increase the yields. The misuse of these chemicals is responsible of contamination of market garden products, leading to the rapid rotting of vegetables. The objective of this study was to determine the pesticides in chemical inputs applied on vegetables produced in Oua(...)
Chemical inputs; fertilizers; pesticides; rapid rot; vegetables.
ARTICLE
1,4‑Dihydroquinone and its Derivatives: Vibrational Spectroscopic (FT‑IR and Raman), Molecular Structure and Quantum Chemical Investigations
Ali Sanda Bawa1 · Seydou Ouedraogo2 · Adamou Zanguina3 · Mabinty Bayo‑Bangoura2 · Karifa Bayo2 · Ibrahim Natatou
Hydroquinones constitute a family of antioxidants, but are also known as electron donor molecules in charge transfer complexes. Raman and IR spectra of 1,4-dihydroquinone (H2Q) and its derivatives, 2,5-dichloro-1,4-dihydroquinone (H2QCl2)
and 2-methoxy-1,4-dihydroquinone (H2QOCH3) in solid form have been recorded. Theoretical calculations usi(...)
1,4-Dihydroquinone, DFT calculations, Symmetry, IR, Raman
ARTICLE
Flavonoid glycosides from Odontonema strictum leaves
Jean Claude W. Ouédraogo, Céline Henoumont, Irène Semay, Félix B. Kini, Sophie Laurent, Pascal Gerbaux, Yvonne L. Bonzi – Coulibaly
Odontonema strictum (Acanthaceae) leave extract was investigated for its flavonoid content. Column chromatography was used for compound isolation and mass spectrometry was performed using electrospray ionization (ESI) in the negative ion mode for compound identification.
The full characterization of luteolin 7-O-[β-D-apiofuranosyl-(1 → 2)-O-β(...)
Odontonema strictum (Acanthaceae), Flavonoids, LC-MS, NMR
ARTICLE
Preparation and Characterization of Two Modified Laterite Soils for Arsenic Removal in Aqueous Solutions: Efficiency and Kinetic Modelling
Rasmane Tiendrébéogo, Yacouba Sanou, Raymond Kaboré, Samuel Paré, and Aboubacar Senou
Consumption of arsenic-contaminated water is the cause of major problems such as melanosis, hyperkeratosis and cancer. To mitigate this pollution, this study was carried out using analytical methods to prepare chemically treated laterite (TL) and chemically doped laterite with ferrihydrite (DL). The adsorbents were characterized using scanning(...)
Mots clés non renseignés
ARTICLE
A cost-benefit analysis of ecosystem services from restoring degraded soils to forest ecosystems in the Sahel
Sibiry Albert Kaboré, Emmanuelle Quillérou, Stéphanie Maiga-Yaleu, Maguette Kairé, Ibrahim Bouzou Moussa, Oumarou Malam Issa, Damien Hauswirth, Hassan Bismarck Nacro
Techniques of degraded ecosystems restoration in the Sahel have largely contributed to slowing down desertification
process. However, they are often very costly, requiring important manpower and financial resources. The
economic benefits of such cases of land restoration are under-documented, especially in scientific literature. The
aim of(...)
Sustainable Land Management, Forest Restoration, Ecosystem Services, Cost-benefit analysis, Net Present Value
ARTICLE
Anti-Diabetic Activities of the Extracts from Euphorbia hirtaL. (Euphorbiaceae) Specie found in Burkina Faso Using α-Glucosidase Inhibitor
Yssouf Karanga, Têeda Hamidou Ganamé, Wende-Konté Hazael Conania Nikiema and Issa Tapsoba
Euphorbia hirta L. is an herbaceous plant used in traditional medicine to treat several diseases. In the present work, different fractions of Euphorbia hirta L. hydroalcoholic extract were investigated for their anti-diabetic properties on α-glucosidase’s inhibition activities. Chemical screening realized following Folin-Ciocalteu and AlCl3 me(...)
Euphorbia hirta L, α-glucosidase, diabetes, flavonoids
ARTICLE
Synthesis, structure and Hirshfeld surface analysis of 2-oxo-2H-chromen-4-yl pentanoate
Valentin Bationo, Konan René Kambo, Charles Bavouma Sombié, Rasmané Semdé, Pierre Francotte and Abdoulaye Djandé
In the title compound, C14H14O4, the dihedral angle between the coumarin ring system (r.m.s deviation = 0.016 Å) and the pentanoate ring is 36.26 (8)°. A short intramolecular CH. . .O contact of 2.40 Å is observed. Hirshfeld surface analysis reveals that 46.1% of the intermolecular interactions are from H. . .H contacts, 28.6% are from H. . .(...)
crystal structure; coumarin structure; Hirshfeld surface analysis; interactions; hydrogen bonds.
ARTICLE
2-Oxo-2H-chromen-4-yl 3,3-dimethylbutanoate
Valentin Bationo, Eric Ziki, Charles Bavouma Sombié, Rasmané Semdé and Abdoulaye Djandé
In the crystal of the title compound, C15H16O4, the molecules are connected through C—H•••O hydrogen bonds, generating [100] chains, which are crosslinked by weak – stacking interactions.
crystal structure; coumarin; Hirshfeld surface
COMMUNICATION
Etude théorique, synthèse et caractérisation d’un dérivé bioactif de la coumarine
Youssoufou Bakouan
Résumé : Ce travail porte sur l’étude théorique de la réaction de C-acylation de la 4- hydroxycoumarine par addition du chlorure de 4-méthylbenzoyle. En effet, il s’agit d’évaluer cette réaction d’acylation sur le plan thermodynamique, de réaliser expérimentalement la synthèse du composé C-acylé puis de caractériser les produits intermédiai(...)
hétérocycles, DFT, B3LYP, 4-hydroxycoumarine
ARTICLE
Preparation and Characterization of Ferrihydrite: Application in Arsenic Removal from Aqueous Solutions.
Rasmane Tiendrébéogo, Yacouba Sanou, Samuel Paré, Aboubacar Senou
Arsenic pollution is a public health hazard in Burkina Faso due to its impact on human health and water resources. To mitigate this pollution, ferrihydrite material has been synthesized and characterized to be used as adsorbent for arsenic removal in aqueous solutions. This study aimed to contribute to improve of access to clean drinking water(...)
Mots clés non renseignés
ARTICLE
The Removal of As(III) Using a Natural Laterite Fixed-Bed Column Intercalated with Activated Carbon: Solving the Clogging Problem to Achieve Better Performance
Régie Dimanche Ouedraogo , Corneille Bakouan , Abdoul Karim Sakira , Brahima Sorgho , Boubié Guel ,* , Touridomon Issa Somé , Anne-Lise Hantson , Eric Ziemons , Dominique Mertens , Philippe Hubert and Jean-Michel Kauffmann
Natural laterite fixed-bed columns intercalated with two types of layers (inert materials, such as fine sand and gravel, and adsorbent materials, such as activated carbon prepared from Balanites aegyptiaca (BA-AC)) were used for As(III) removal from an aqueous solution. Investigations were carried out to solve the problem of column clogging, w(...)
laterite; balanites aegyptiaca; percolation; activated carbon; hydraulic conductivity
ARTICLE
The Removal of As(III) Using a Natural Laterite Fixed-Bed Column Intercalated with Activated Carbon: Solving the Clogging Problem to Achieve Better Performance
Régie Dimanche Ouedraogo, Corneille Bakouan, Abdoul Karim Sakira, Brahima Sorgho, Boubié Guel, Touridomon Issa Somé, Anne-Lise Hantson, Eric Ziemons, Dominique Mertens, Philippe Hubert
Abstract: Natural laterite fixed-bed columns intercalated with two types of layers (inert materials,
such as fine sand and gravel, and adsorbent materials, such as activated carbon prepared from
Balanites aegyptiaca (BA-AC)) were used for As(III) removal from an aqueous solution. Investigations
were carried out to solve the problem of colum(...)
activated carbon, ; balanites aegyptiaca
ARTICLE
Synthesis, Spectroscopic Characterization, X-ray Structural Analysis and Theoretical Calculations of an Ester Derivative of the Coumarin Scaffold: (Coumarin-6-yl)-4-tert-Butylbenzoate
Honoré Kouadio Yao, Koulabiga Zakaria, Akoun Abou, Abdoulaye Djandé, Michel Giorgi, Olivier Ouari
The title compound, C20H18O4 (I), was synthesized by O-acylation of 6-hydroxycoumarin with 4-tert-butylbenzoyl chloride. The compound was characterized with ESI-MS, FT-IR, 1H and 13C NMR spectroscopic analysis. Furthermore the single crystal X-ray structure obtained has C2/c space group and crystallizes in the monoclinic system with dimensions(...)
6-Substituted coumarin derivative, Spectroscopic analysis, Conformational analysis
ARTICLE
Study of the Efficiency of Two Clays Soils for Cyanide Removal in Water: Kinetic and Equilibrium Modelling
Raymond KABORE, Yacouba SANOU, Adama KONATE, Samuel PARE
In Burkina Faso, water resources in mining area are sometime polluted by cyanide. To mitigate this pollution, clays have been collected in Kaya and Koro and used as adsorbents to remove cyanide in waters. Experiments have been carried out using batch adsorption with synthetic cyanide solutions. The influence of operating conditions has been ev(...)
Mots clés non renseignés