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Nanomaterials for spectroscopic and electrochemical detection of metal ions

Bhaumik, Sruti (2009) Nanomaterials for spectroscopic and electrochemical detection of metal ions. Master's Thesis, University of Pittsburgh. (Unpublished)

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Abstract

Techniques for the analysis of metal ions including ion exchange chromatography, UV-Vis-NIR spectroscopy, fluorescence spectroscopy, cyclic voltammetry, adsorptive stripping voltammetry, and use of field-effect transistors are reviewed., The advantages and disadvantages of each method will be described. Development and incorporation of nanotubes as practical materials for rapid and portable sensing applications with improved selectivity and sensitivity over previous methods is discussed. Interactions of chelating molecules ferrozine and neucuproine with Fe2+ and Cu+, respectively, are studied via UV-Vis-NIR spectroscopy. Interactions of these molecules with carbon nanotube networks are monitored spectroscopically and electrochemically to elucidate the charge transfer mechanism between analyte species, chelating ligands and the carbon nanotube network. Synthesis and characterization of carbon nanotube networks are discussed. This information will contribute to forming a framework of metal ion sensing using carbon nanotubes and aid in the rational design of nanoscale sensors for environmental, medical, biological and defense contexts.

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Details

Item Type: University of Pittsburgh ETD
Status: Unpublished
Creators/Authors:
CreatorsEmailPitt UsernameORCID
Bhaumik, Srutisruti.bhaumik@gmail.com
ETD Committee:
TitleMemberEmail AddressPitt UsernameORCID
Committee MemberStar, Alexanderastar@pitt.eduASTAR
Committee MemberWaldeck, Daviddave@pitt.eduDAVE
Committee MemberRosi, Nathanielnrosi@pitt.eduNROSI
Date: 5 June 2009
Date Type: Completion
Defense Date: 17 February 2009
Approval Date: 5 June 2009
Submission Date: 20 April 2009
Access Restriction: 5 year -- Restrict access to University of Pittsburgh for a period of 5 years.
Institution: University of Pittsburgh
Schools and Programs: Dietrich School of Arts and Sciences > Chemistry
Degree: MS - Master of Science
Thesis Type: Master's Thesis
Refereed: Yes
Uncontrolled Keywords: analytical chemistry; carbon nanotubes; chelating ligands; electrochemistry; metal ions; sensing; spectroscopy; voltammetry
Other ID: http://etd.library.pitt.edu/ETD/available/etd-04202009-231958/, etd-04202009-231958
Date Deposited: 10 Nov 2011 19:39
Last Modified: 15 Nov 2016 13:41
URI: http://d-scholarship.pitt.edu/id/eprint/7374

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