A5045369923- Electrochemical Analysis and Applications
- Analytical Chemistry and Sensors
- Electrochemical sensors and biosensors
- Mercury impact and mitigation studies
- Heavy metals in environment
- Conducting polymers and applications
- TiO2 Photocatalysis and Solar Cells
- Advanced Photocatalysis Techniques
- Mining and Resource Management
- Analytical chemistry methods development
- Clay minerals and soil interactions
- Isotope Analysis in Ecology
- Heavy Metal Exposure and Toxicity
- Water Quality Monitoring and Analysis
- Statistical and Computational Modeling
- Historical and Environmental Studies
- Information Technology and Learning
- Catalytic Processes in Materials Science
- Sensor Technology and Measurement Systems
- Surface Roughness and Optical Measurements
- Advanced Chemical Sensor Technologies
- Environmental Science and Water Management
- Economic and Business Development Strategies
- Iron oxide chemistry and applications
- Dye analysis and toxicity
École Normale Supérieure d'Abidjan
2010-2024
University of Connecticut
2021
École Normale Supérieure
2015-2021
Université Félix Houphouët-Boigny
2016
Laboratoire de physique de la matière condensée
2016
National Institute of Oceanography
2015
Fish farms are an alternative to meet human needs for fish. However, these influenced by intense anthropogenic activities that can affect the quality of water, sediments, and This study aims determine concentrations heavy metals in water sediments order assess their transfer into farmed tilapia using bioconcentration bioaccumulation factors. The results revealed very high levels arsenic (0.050 ± 0.029 mg/L) cadmium (0.047 0.059 compared mercury (0.012 0.002 lead (0.007 0.001 mg/L). In most...
Abstract A new electrode based on carbon paste (CP) modified with natural clay was used for heavy metals detection. The investigation of the raw material (X-ray diffraction, infrared spectroscopy, scanning electron microscopy, energy-dispersive X-ray thermal analysis and particle size distribution) revealed different morpho-structural properties material. electrochemical behaviour its ability to detect (Zn 2+ , Cd Cu ) studied by techniques like cyclic voltammetry (CV), impedance...
The utilization of clay minerals as electrode modifiers is based on their unique structure and properties. In this study, clays from various regions Côte d'Ivoire were characterized for potential use in developing electrochemical sensors. samples underwent analysis via X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive spectroscopy (EDS) mapping analysis, Fourier transform infrared (FTIR), fluorescence (XRF). Results XRD, FTIR, SEM, XRF indicated...
The TiO2 deposition on high surface possessing supports can increase the photocatalytic efficiency of a semiconductor, as already shown in literature because, adsorption capacity support help to enrich organic substrate around catalyst promoting charge-transfer process between pollutants and photocatalysts. Consequently, this study, we investigated synthesis composite materials based different types carbon. Titanium tetrachloride (TiCl4) was used precursor, while graphite, activated carbon...
Heavy metal pollution of surface waters from anthropogenic activities is constantly increasing. Monitoring techniques must therefore be more precise and sensitive. One the effective methods available development sensitive electrochemical sensors, dedicated to analysis pollutants in aqueous solution. The carbon paste electrode (CPE) this study was modified with Moringa Oleifera seed powder, a flocculant-adsorbent used treat water. This chemically presented improved reactivity cyclic...
Monomethylmercury (CH 3 Hg) is a neurotoxic pollutant that biomagnifies in aquatic food webs. In sediments, the production of CH Hg depends on bacterial activity mercury (Hg) methylating bacteria and amount bioavailable inorganic divalent (Hg II ). Biotic abiotic reduction to elemental 0 ) may limit pool available for methylation thus produced. Knowledge about transformation therefore primordial understanding toxic bioaccumulative Hg. Here, we examined by sulfidic minerals (FeS (s) CdS...
Boubo river and lagoon, south Cote d’Ivoire, are contaminated by manganese released in wastewater from exploitation the soil of Grand-Lahou region d’Ivoire. So, there is a need to develop simple method for evaluation present natural water. This work reports utility rapid inexpensive determination dissolved (II) water cathodic stripping voltammetry using rotating carbon paste disk electrode. The experimental parameters were optimized. Under optimum conditions, was successfully applied free...
Electrochemical sensors are used for regular monitoring of water, environmental and food matrices trace metal elements (TMEs). These devices have on their surface a layer active substances that complex ETMS such as mercury (II). Their effectiveness lies in the control chemical reactions, effect solvent processes at interface. The electrochemical behaviour indigo carmine dye was determined using cyclic voltametry pH = 3 10 carbon paste electrode (CPE). acidic medium shows four current peaks...
Cyanide is increasingly released into the environment as a result of human activities. Once ingested body, it blocks vital functions and can lead to death. The aim this work detect cyanide using cathodic stripping voltammetry employing carbon paste electrode modified with 5% Agban Bingerville clay. Two electrochemical sensors were developed for detection cyanide: one bare other clay-modified electrode. detects in hydrochloric acid (pH 1) supporting electrolyte seven times more effectively...
The electrochemical characterisation of the materials used to make sensors is mostly based on cyclic voltametry method. Cyclic an electrical method for dynamic study systems. Through a reversible potential sweep, material studied in contact with ferri/ferrocyanide. Ferri/Ferrocyanide one most chemical compounds electrochemistry and photo-electrochemistry because its singular known controlled reactivity. appearance voltamorams mathematical expressions it possible collect information necessary...
Electrochemical detection of mercury (II) by the carbon paste electrode modified indigo carmine in differential pulse voltammetry is obtained a complexation reaction. Complexation time, pH and temperature parameters which influence formation complex were investigated. The formed Hg-IC electro inactive. Its adsorption to surface causes decreasing variation intensity anodic peak current versus time. Applying Cottrell law faradaic has achieved equivalent electrical circuit modelling all...
The fight against pollution by heavy metals requires the establishment of reliable and inexpensive simple techniques. Electrochemical sensors offer innovative solutions provided you have active materials sensitive layer. This layer must in his surface selective groups facing metalliccations. More organo-mineral composite are used electroanalysis. Here silicon is incorporated into carbon graphite conductive matrix. silicon-carbon material has sites electroanalysis presence indigo carmine.
Analytical application of fibrinogen-coated mercury film electrodes for the detection lead and cadmium in water samplesThe aim this study was development sensor based on fibrinogen (Fbg) coated at carbon paste electrode perspective in-field stripping analysis heavy metals complex matrix. The preparation, optimization characterization coatings Fibrinogen modification thin its trace have been described . modified prepared by a simple adsorption from an aqueous solution containing adequate...