Environmental/analytical And Nano-electrochemistry With A Focus On Preparation And Characterization Of Catalyst And Modified Electrodes To Eventual Application As Electrochemical Devices (nanosensor) In An Environmental Water System
At the Chemistry department office
Appointment on Visitation important
Topic: Environmental Nanosensor Technology With Applications To Environmental Science, Management And Monitoring Of Compliance To Environmental Policies
Description: The research involves the determination and assessment of contaminants in environmental water system. The fabrication of electrochemical smart materials including Graphene and polymeric derivatives such as polyaniline and nanaomaterials using electrochemical techniques and exploiting the advantages to design and apply as sensor construction and environmental electroanalysis for priority organic pollutants in environmental water system. Novel graphenated polyaniline nanocomposite have been fabricated and applied in the design of sensor platform for detection of polyaromatic hydrocarbon (PAHs).
|1.||Ph.D (ELECTROANALYTICAL/ENVIRONMENTAL CHEMISTRY)||NATURAL SCIENCE, UNIVERSITY OF THE WESTERN CAPE||2014|
Graphenated polyaniline nanosensor system for real time determination of chemical warfare agents
Introduction:The chemical warfare agents (CWA) such as 3-quinuclidinyl benzilate (QNB, BZ), 2, 2-Diphenyl-2-hydroxyacetic acid and Quinuclidin-3-ol are among anticholinergic agents that affects both the peripheral and central nervous systems (CNS). 3-quinuclidinyl benzilate (QNB, BZ) is the most potent anticholinergic psychomimetics known, with only small doses necessary to produce incapacitation which impairs the performance of an enemy by targeting the central nervous system while others are used as precursors. Several classical methods such as high performance liquid chromatography (HPLC) and gas chromatography (GC) has been developed for their determination. However, these methods are known to manifest underlying disadvantages such as complicated pre-treatment, high costs and time consuming processes. .Herein a simple, less time consuming electrochemical method in the rim of an electrochemical sensor (Graphenated SensorTek) is being proposed for real time and low cost determination of CWA. The sensor system will be based on the use of graphenated polyaniline nanosensor systems doped with transition metal oxides Aim/objectiveThe main aim of this study is to develop a novel method for harnessing the properties of electro conductive polymers in sensor technology by using polymeric nanotubes blends in the preparation of high performance sensor devices,The objectives include:To produce novel graphenated polymers doped with transition metal oxides for the production of ultrasensitive CWA sensor systemsMethodologyElectrically conducting graphenated PANI nanomaterial will be electrochemically prepared by in situ oxidative polymerization of the monomer in acid solutions using transition metal oxides (ZnO) as dopants.Expected resultA nanosensor device containing intrinsically polymer that have been graphenated and doped with transition metal that will be applicable for real time determination of CWA.Success in this will have impact for the development and promotion of scientific and technical knowledge in the field of chemistry for research, environmental and other peaceful purposes.
TOVIDE OLUWAKEMI is a Senior Lecturer at the Department of Chemistry
TOVIDE has a Ph.D in ELECTROANALYTICAL/ENVIRONMENTAL CHEMISTRY from NATURAL SCIENCE, UNIVERSITY OF THE WESTERN CAPE