Moronkola Adekemi Bridget

Chemistry

At the Chemistry department office

Appointment on Visitation important

Topic: REMOVAL OF TOXIC ANIONS AND CATIONS FROM WASTEWATER USING FUNCTIONALIZED ELECTROSPUN NANOFIBRES

Description:

INTRODUCTION

Electrospinning: This is a process whereby fibres are generated by the application of electrostatic forces to a jetting polymer solution. The incorporation of nanofillers into electrospun fibres enhances the fibre properties relevant to a number of applications, particularly mechanically reinforced composites Megelski et al., 2008 . Electrospinning is allowed for the creation of nanofibres fibres with a diameter well in the realm of nano dimensions , that can be collected to form a non-woven fabric. The resulting materials can be applied to create many products including medical devices, tissue engineering scaffolds, clothing and filtration media Megelski et al., 2008 . In the past years, many small scale and community based Anion and Cation removal technologies have been developed.

AIM

The study will be focused on optimizing parameters for electrospinning polymer into nanofibres and characterizing the sorbents developed from the nanofibres in terms of their tunabililty for uptake and release of anions and cations from aqueous environments, reusability and loading capacities.

OBJECTIVES

The nanofibres will be fully characterized in terms of their average diameters, morphologies and surface area. The nanofibres mat will then be stamped out into optimized masses and applied as adsorbents for uptake of toxic anions and cations, using batch contact and solid phase extraction. Parameters affecting adsorption such as initial concentration, contact time and pH will also be investigated. The capacity of the functionalized electrospun fibres to anions and cations in wastewater will be determined. The loaded sorbents will be desorbed, and the efficiencies of adsorptions / desorptions will then be determined.

#	Certificate	School	Year
1.	Ph.D (Analytical / Environmental Chemistry)	Rhodes University, Grahamstown, South Africa.	2016

Synthesis and characterization of MgO nanoparticles

Introduction: Green Synthesis method of nano particles and captivated considerable attentiveness in recent years due to it's eco friendly. 

Aim: This study aim at synthesis and Characterisation of MgO nano particles using orange peel.

A plant to metal salt solution ratio was synthesized under alkaline condition of pH 9 with continuous stirring for 3hrs using bottom to approach and manufacturing of nano particles was illustrated by an obvious colour change. Several analytical techniques will be used for the qualitative analog such as XRD which will confirm the presence of crystal structure and several mineral composite, FTIR will indicate the functional group in which the spectra will identify the peak, TGA is for thermal stability, SEM is for morphology, BET will show the pore size distribution and specific surface area. Several analytical techniques will be used for the qualitative analog such as XRD which will confirm the presence of crystal structure and several mineral composite, FTIR will indicate the functional group in which the spectra will identify the peak, TGA is for thermal stability, SEM is for morphology, BET will show the pore size distribution and specific surface area.

Moronkola Bridget is a Associate Professor / Reader at the Department of Chemistry

Moronkola has a Ph.D in Analytical / Environmental Chemistry from Rhodes University, Grahamstown, South Africa.