Fabrication of calixarene films using Langmuir and Langmuir-Blodgett (LB) method for heavy metal ion sensing (IR)

This study aims to develop novel calixarenes monolayer and multilayer films for sensing properties of heavy metals ion, namely Pb2+ and Cd2+, using Langmuir and Langmuir-Blodgett (LB) films techniques. Langmuir monolayer formation at the air-water interface was achieved by spreading amphiphilic mole...

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Main Author:	Noor Azyyati Noor Azahari
Format:	thesis
Language:	eng
Published:	2014
Subjects:	QC Physics
Online Access:	https://ir.upsi.edu.my/detailsg.php?det=2413
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spelling	oai:ir.upsi.edu.my:24132020-02-27 Fabrication of calixarene films using Langmuir and Langmuir-Blodgett (LB) method for heavy metal ion sensing (IR) 2014 Noor Azyyati Noor Azahari QC Physics This study aims to develop novel calixarenes monolayer and multilayer films for sensing properties of heavy metals ion, namely Pb2+ and Cd2+, using Langmuir and Langmuir-Blodgett (LB) films techniques. Langmuir monolayer formation at the air-water interface was achieved by spreading amphiphilic molecules on water subphase and compressing them into an ordered arrangement. LB films were formed by transferring the floating monolayer molecules at the air-water interface onto a solid substrate. The properties of the calixarenes molecules developed from Langmuir film were discussed on terms of surface pressure-area (?-A) isotherms, surface potential (V) and effective dipole moment (?) of the molecules in the absence and presence of metal ions. The calixarenes LB films were characterized by UV-visible spectroscopy to identify their optical properties. FTIR analysis yielded useful information regarding the specific interactions of calixarenes and the tested metal ions. Under the optimum experimental conditions, the lowest detectable concentration of Pb2+ is 2.5x10-2 mM and Cd2+ is 5.0x10-2 mM. Furthermore, calixarenes showed a well-defined response towards the Pb2+ and Cd2+ with good sensitivity and reproducibility. The detection mechanism of calixarenes with Pb2+ and Cd2+ ions in aqueous solution were also discussed. These findings are suitable to be applied for the development of optical sensors for the detection of heavy metal pollution in water 2014 thesis https://ir.upsi.edu.my/detailsg.php?det=2413 https://ir.upsi.edu.my/detailsg.php?det=2413 text eng closedAccess Masters Universiti Pendidikan Sultan Idris Fakulti Sains dan Matematik N/A
institution	Universiti Pendidikan Sultan Idris
collection	UPSI Digital Repository
language	eng
topic	QC Physics
spellingShingle	QC Physics Noor Azyyati Noor Azahari Fabrication of calixarene films using Langmuir and Langmuir-Blodgett (LB) method for heavy metal ion sensing (IR)
description	This study aims to develop novel calixarenes monolayer and multilayer films for sensing properties of heavy metals ion, namely Pb2+ and Cd2+, using Langmuir and Langmuir-Blodgett (LB) films techniques. Langmuir monolayer formation at the air-water interface was achieved by spreading amphiphilic molecules on water subphase and compressing them into an ordered arrangement. LB films were formed by transferring the floating monolayer molecules at the air-water interface onto a solid substrate. The properties of the calixarenes molecules developed from Langmuir film were discussed on terms of surface pressure-area (?-A) isotherms, surface potential (V) and effective dipole moment (?) of the molecules in the absence and presence of metal ions. The calixarenes LB films were characterized by UV-visible spectroscopy to identify their optical properties. FTIR analysis yielded useful information regarding the specific interactions of calixarenes and the tested metal ions. Under the optimum experimental conditions, the lowest detectable concentration of Pb2+ is 2.5x10-2 mM and Cd2+ is 5.0x10-2 mM. Furthermore, calixarenes showed a well-defined response towards the Pb2+ and Cd2+ with good sensitivity and reproducibility. The detection mechanism of calixarenes with Pb2+ and Cd2+ ions in aqueous solution were also discussed. These findings are suitable to be applied for the development of optical sensors for the detection of heavy metal pollution in water
format	thesis
qualification_name
qualification_level	Master's degree
author	Noor Azyyati Noor Azahari
author_facet	Noor Azyyati Noor Azahari
author_sort	Noor Azyyati Noor Azahari
title	Fabrication of calixarene films using Langmuir and Langmuir-Blodgett (LB) method for heavy metal ion sensing (IR)
title_short	Fabrication of calixarene films using Langmuir and Langmuir-Blodgett (LB) method for heavy metal ion sensing (IR)
title_full	Fabrication of calixarene films using Langmuir and Langmuir-Blodgett (LB) method for heavy metal ion sensing (IR)
title_fullStr	Fabrication of calixarene films using Langmuir and Langmuir-Blodgett (LB) method for heavy metal ion sensing (IR)
title_full_unstemmed	Fabrication of calixarene films using Langmuir and Langmuir-Blodgett (LB) method for heavy metal ion sensing (IR)
title_sort	fabrication of calixarene films using langmuir and langmuir-blodgett (lb) method for heavy metal ion sensing (ir)
granting_institution	Universiti Pendidikan Sultan Idris
granting_department	Fakulti Sains dan Matematik
publishDate	2014
url	https://ir.upsi.edu.my/detailsg.php?det=2413
_version_	1747833008454369280

Fabrication of calixarene films using Langmuir and Langmuir-Blodgett (LB) method for heavy metal ion sensing (IR)

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