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Surface refractive index sensor based on titanium dioxide composite thin film for detection of cadmium ions

In this work, a refractive index sensor using TiO2 extracted from moringa leaves-based nanocomposite thin film was developed to detect cadmium ions in an aqueous solution. The experimental results showed a good sensitivity response of 0.4825° ppm−1, a strong binding affinity of 1.4362 ppm−1, and a l...

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Main Authors: Sheh Omar, Nur Alia, Irmawati, Ramli, Fen, Yap Wing, Muhamad, Ernee Noryana, Kamal Eddin, Faten Bashar, Anas, Nur Ain Asyiqin, Md Ramdzan, Nur Syahira, Muhamad Fauzi, Nurul Illya, Mahdi, Mohd Adzir
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Published: Elsevier 2022
Online Access:http://psasir.upm.edu.my/id/eprint/103370/
https://www.sciencedirect.com/science/article/pii/S0263224121011908
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spelling my.upm.eprints.1033702023-06-14T02:34:42Z http://psasir.upm.edu.my/id/eprint/103370/ Surface refractive index sensor based on titanium dioxide composite thin film for detection of cadmium ions Sheh Omar, Nur Alia Irmawati, Ramli Fen, Yap Wing Muhamad, Ernee Noryana Kamal Eddin, Faten Bashar Anas, Nur Ain Asyiqin Md Ramdzan, Nur Syahira Muhamad Fauzi, Nurul Illya Mahdi, Mohd Adzir In this work, a refractive index sensor using TiO2 extracted from moringa leaves-based nanocomposite thin film was developed to detect cadmium ions in an aqueous solution. The experimental results showed a good sensitivity response of 0.4825° ppm−1, a strong binding affinity of 1.4362 ppm−1, and a low signal-to-noise ratio of 0.0755. The proposed sensor also showed good selectivity towards cadmium ions compared to zinc and mercury ions. The changes in the optical properties of titanium dioxide-based nanocomposite thin film towards different concentrations of cadmium ions solution were further demonstrated theoretically. Also, the observed increase in the surface roughness using atomic force microscopy proved the binding of Cd ions to the sensor film. This study is proposing a new potential of titanium dioxide extracted from moringa leaves-based nanocomposite thin film as a surface refractive index sensor for the detection of cadmium ions. Elsevier 2022 Article PeerReviewed Sheh Omar, Nur Alia and Irmawati, Ramli and Fen, Yap Wing and Muhamad, Ernee Noryana and Kamal Eddin, Faten Bashar and Anas, Nur Ain Asyiqin and Md Ramdzan, Nur Syahira and Muhamad Fauzi, Nurul Illya and Mahdi, Mohd Adzir (2022) Surface refractive index sensor based on titanium dioxide composite thin film for detection of cadmium ions. Measurement, 187. art. no. 110287. pp. 1-9. ISSN 0263-2241 https://www.sciencedirect.com/science/article/pii/S0263224121011908 10.1016/j.measurement.2021.110287
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
description In this work, a refractive index sensor using TiO2 extracted from moringa leaves-based nanocomposite thin film was developed to detect cadmium ions in an aqueous solution. The experimental results showed a good sensitivity response of 0.4825° ppm−1, a strong binding affinity of 1.4362 ppm−1, and a low signal-to-noise ratio of 0.0755. The proposed sensor also showed good selectivity towards cadmium ions compared to zinc and mercury ions. The changes in the optical properties of titanium dioxide-based nanocomposite thin film towards different concentrations of cadmium ions solution were further demonstrated theoretically. Also, the observed increase in the surface roughness using atomic force microscopy proved the binding of Cd ions to the sensor film. This study is proposing a new potential of titanium dioxide extracted from moringa leaves-based nanocomposite thin film as a surface refractive index sensor for the detection of cadmium ions.
format Article
author Sheh Omar, Nur Alia
Irmawati, Ramli
Fen, Yap Wing
Muhamad, Ernee Noryana
Kamal Eddin, Faten Bashar
Anas, Nur Ain Asyiqin
Md Ramdzan, Nur Syahira
Muhamad Fauzi, Nurul Illya
Mahdi, Mohd Adzir
spellingShingle Sheh Omar, Nur Alia
Irmawati, Ramli
Fen, Yap Wing
Muhamad, Ernee Noryana
Kamal Eddin, Faten Bashar
Anas, Nur Ain Asyiqin
Md Ramdzan, Nur Syahira
Muhamad Fauzi, Nurul Illya
Mahdi, Mohd Adzir
Surface refractive index sensor based on titanium dioxide composite thin film for detection of cadmium ions
author_facet Sheh Omar, Nur Alia
Irmawati, Ramli
Fen, Yap Wing
Muhamad, Ernee Noryana
Kamal Eddin, Faten Bashar
Anas, Nur Ain Asyiqin
Md Ramdzan, Nur Syahira
Muhamad Fauzi, Nurul Illya
Mahdi, Mohd Adzir
author_sort Sheh Omar, Nur Alia
title Surface refractive index sensor based on titanium dioxide composite thin film for detection of cadmium ions
title_short Surface refractive index sensor based on titanium dioxide composite thin film for detection of cadmium ions
title_full Surface refractive index sensor based on titanium dioxide composite thin film for detection of cadmium ions
title_fullStr Surface refractive index sensor based on titanium dioxide composite thin film for detection of cadmium ions
title_full_unstemmed Surface refractive index sensor based on titanium dioxide composite thin film for detection of cadmium ions
title_sort surface refractive index sensor based on titanium dioxide composite thin film for detection of cadmium ions
publisher Elsevier
publishDate 2022
url http://psasir.upm.edu.my/id/eprint/103370/
https://www.sciencedirect.com/science/article/pii/S0263224121011908
_version_ 1769844455108509696
score 13.211869

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