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Synthesis and application of some Ag+-selective ligands and iron oxide/Ag+-selective composite nanoparticles

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Aderibigbe, Abiodun Daniel (2019) Synthesis and application of some Ag+-selective ligands and iron oxide/Ag+-selective composite nanoparticles. PhD thesis, University of Warwick.

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Official URL: http://webcat.warwick.ac.uk/record=b3489789~S15

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Abstract

The work presented in this thesis reports the synthesis and application of some novel Ag+-selective ligands and magnetic iron oxide /Ag+-ligand nanocomposites for Ag+ recovery from aqueous solutions. Also investigated is the Ag+-selective ligand binding studies using traditional methods including mass spectrometry and proton NMR titrations. Chapter 1 provides a detailed introduction to methods of metal recovery leading to discussion of adsorption technology and ending with a detail review of types of iron oxide/ligand composites for metal recovery.

Chapter 2 reports on a novel room temperature route to accessing a range of novel N,N’-malonamide derivatives and styrylamide Ag+-selective ligands, and the measurement of their efficiency and selectivity for Ag+ extraction from aqueous solution.

Chapter 3 presents a detailed investigation of the binding stoichiometries of two Ag+ selective ligands (N,N’-malonamide derivatives and styrylamide) with Ag+, using mass spectrometry and proton NMR titrations (leading to Job’s and mole ratio plots).

Chapter 4 focuses on the synthesis of iron oxide nanoparticle and its linkage to a novel styrylamide Ag+-selective ligand by means of atom transfer radical polymerization (ATRP) and free radical polymerization (FRP) and ending with testing of the iron oxide/styryl amide nanocomposite obtained for Ag+ recovery from aqueous solution.

Chapter 5 describes the synthesis of iron oxide/imidazolium-based Ag+-ligand nanocomposite and the optimization of parameters (pH, time, dosage and stripping agent) for efficient and selective Ag+ recovery from aqueous solutions.

Chapter 6 details the experimental procedures and chemical analyses undertaken in this thesis.

Item Type: Thesis or Dissertation (PhD)
Subjects: Q Science > QD Chemistry
Library of Congress Subject Headings (LCSH): Ligands, Nanoparticles, Iron oxides -- Magnetic properties, Cations, Stoichiometry, Addition polymerization
Official Date: July 2019
Dates:
DateEvent
July 2019UNSPECIFIED
Institution: University of Warwick
Theses Department: Department of Chemistry
Thesis Type: PhD
Publication Status: Unpublished
Supervisor(s)/Advisor: Clark, Andrew J. (Professor) ; Bon, Stefan Antonius Franciscus
Sponsors: Commonwealth Scholarship Commission in the United Kingdom ; University of Warwick
Format of File: pdf
Extent: xix, 177 leaves : illustrations
Language: eng

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