Highly sensitive [Ru(bpy)3]2+/Nafion® modified indium tin oxide-based sensor for heavy metal detection

Highly sensitive [Ru(bpy)3]2+/Nafion® modified indium tin oxide-based sensor for heavy metal detection

Indium tin oxide-coated glass substrates were modified with tris (2,2′-bipyridyl) ruthenium (II) dichloride hexahydrate [Ru(bpy)3]2+/Nafion® solution via dip-coating. The Nafion®—[Ru(bpy)3]2+ ratio was varied to optimize the sensitivity of the modified electrodes in detecting lead (Pb2+) and cadmium...

Full description

Bibliographic Details
Main Authors: Toni Beth Guatato Lopez, Shirley Tiong Palisoc, Michelle Tiamzon Natividad
Format: Article
Language:English
Published: Elsevier 2017-09-01
Series:Sensing and Bio-Sensing Research
Online Access:http://www.sciencedirect.com/science/article/pii/S2214180417300909
id doaj-1161736e0fc34a59abba56d03f00efae
record_format Article
spelling doaj-1161736e0fc34a59abba56d03f00efae2020-11-24T22:07:30ZengElsevierSensing and Bio-Sensing Research2214-18042017-09-01153440Highly sensitive [Ru(bpy)3]2+/Nafion® modified indium tin oxide-based sensor for heavy metal detectionToni Beth Guatato Lopez0Shirley Tiong Palisoc1Michelle Tiamzon Natividad2Condensed Matter Laboratory, Physics Department, De La Salle University, Philippines; Technological University of the Philippines, Ermita, Manila, Philippines; Corresponding author at: Technological University of the Philippines, Ermita, Manila, Philippines.Condensed Matter Laboratory, Physics Department, De La Salle University, Philippines; Condensed Matter Research Unit, CENSER, De La Salle University, 2401 Taft Avenue, Manila 1004, PhilippinesCondensed Matter Laboratory, Physics Department, De La Salle University, Philippines; Condensed Matter Research Unit, CENSER, De La Salle University, 2401 Taft Avenue, Manila 1004, PhilippinesIndium tin oxide-coated glass substrates were modified with tris (2,2′-bipyridyl) ruthenium (II) dichloride hexahydrate [Ru(bpy)3]2+/Nafion® solution via dip-coating. The Nafion®—[Ru(bpy)3]2+ ratio was varied to optimize the sensitivity of the modified electrodes in detecting lead (Pb2+) and cadmium (Cd2+). The surface morphology of the deposited thin film was characterized by scanning electron microscopy (SEM). The lowest concentration detected was 0.007μM (0.001μg/mL) and 4.91μM (0.552μg/mL) for lead and cadmium, respectively. The optimum Nafion® volume concentration in the film was 0.4% which gave an average film thickness of 217.90nm.http://www.sciencedirect.com/science/article/pii/S2214180417300909
collection DOAJ
language English
format Article
sources DOAJ
author Toni Beth Guatato Lopez
Shirley Tiong Palisoc
Michelle Tiamzon Natividad
spellingShingle Toni Beth Guatato Lopez
Shirley Tiong Palisoc
Michelle Tiamzon Natividad
Highly sensitive [Ru(bpy)3]2+/Nafion® modified indium tin oxide-based sensor for heavy metal detection
Sensing and Bio-Sensing Research
author_facet Toni Beth Guatato Lopez
Shirley Tiong Palisoc
Michelle Tiamzon Natividad
author_sort Toni Beth Guatato Lopez
title Highly sensitive [Ru(bpy)3]2+/Nafion® modified indium tin oxide-based sensor for heavy metal detection
title_short Highly sensitive [Ru(bpy)3]2+/Nafion® modified indium tin oxide-based sensor for heavy metal detection
title_full Highly sensitive [Ru(bpy)3]2+/Nafion® modified indium tin oxide-based sensor for heavy metal detection
title_fullStr Highly sensitive [Ru(bpy)3]2+/Nafion® modified indium tin oxide-based sensor for heavy metal detection
title_full_unstemmed Highly sensitive [Ru(bpy)3]2+/Nafion® modified indium tin oxide-based sensor for heavy metal detection
title_sort highly sensitive [ru(bpy)3]2+/nafion® modified indium tin oxide-based sensor for heavy metal detection
publisher Elsevier
series Sensing and Bio-Sensing Research
issn 2214-1804
publishDate 2017-09-01
description Indium tin oxide-coated glass substrates were modified with tris (2,2′-bipyridyl) ruthenium (II) dichloride hexahydrate [Ru(bpy)3]2+/Nafion® solution via dip-coating. The Nafion®—[Ru(bpy)3]2+ ratio was varied to optimize the sensitivity of the modified electrodes in detecting lead (Pb2+) and cadmium (Cd2+). The surface morphology of the deposited thin film was characterized by scanning electron microscopy (SEM). The lowest concentration detected was 0.007μM (0.001μg/mL) and 4.91μM (0.552μg/mL) for lead and cadmium, respectively. The optimum Nafion® volume concentration in the film was 0.4% which gave an average film thickness of 217.90nm.
url http://www.sciencedirect.com/science/article/pii/S2214180417300909
work_keys_str_mv AT tonibethguatatolopez highlysensitiverubpy32nafionmodifiedindiumtinoxidebasedsensorforheavymetaldetection
AT shirleytiongpalisoc highlysensitiverubpy32nafionmodifiedindiumtinoxidebasedsensorforheavymetaldetection
AT michelletiamzonnatividad highlysensitiverubpy32nafionmodifiedindiumtinoxidebasedsensorforheavymetaldetection
_version_ 1725820088413585408

Similar Items