Title

Electrochemical study of [Ru(NH₃)₆]3 Nafion modified electrodes for sequential determination of cadmium (CDÂ), lead (PbÂ) and zinc (Zn²) via anodic stripping voltammetry

Date of Publication

2014

Document Type

Bachelor's Thesis

Degree Name

Bachelor of Science in Premed Physics

Subject Categories

Physics

College

College of Science

Department/Unit

Physics

Thesis Adviser

Michelle Natividad-Tiamzon

Defense Panel Chair

Christopher Que

Defense Panel Member

Al Rey Villagracia
Gwen Castillon

Abstract/Summary

Chemically modified [Ru(NH₃)₆]3⁺ doped NafionⓇ thin film was fabricated on indium tin oxide (ITO) coated glass electrodes by using the drop-coating method to sequentially detect heavy metal ions (Pb(II), Cd(II) and Zn(II) in deionized water analyte solution via anodic stripping voltammetry (ASV). This study also determined the effect of varying the concentration of the mediator [Ru(NH₃)₆]3⁺) on the detection of the said heavy metals. The redox mediator [Ru(NH₃)₆]3⁺ used in the study was effectively incorporated and immobilized within the Nafion modified electrodes. Heavy metal concentration in the electrolyte solution and the concentration of the redox mediator was varied to control the properties of the fabricated electrodes to undergo heavy metal detection through ASV. The conducting properties of ITO electrodes were enhanced wIth the deposition of NafionⓇ attaining minimal interference. The reduction current peaks increased monotonically with the concentration of the heavy metal present in the solution as well as the mediator concentration,

Abstract Format

html

Language

English

Format

Print

Accession Number

TU18387

Shelf Location

Archives, The Learning Commons, 12F, Henry Sy Sr. Hall

Physical Description

xi, 98 leaves: ; illustrations (some colored) : 28 cm.

This document is currently not available here.

Share

COinS