Synthesis of thiosemicarbazone-based colorimetric chemosensor for Cu2+ ions’ recognition in aqueous medium: Experimental and theoretical studies
A highly sensitive and selective colorimetric test using an organic compound, namely 2-acetylpyrrole thiosemicarbazone (APT), for the efficient recognition of Cu2+ ions in an aqueous medium has been successfully developed. The optimization of APT in acting as a colorimetric chemosensor was studied u...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English English |
| Published: |
Elsevier
2020
|
| Subjects: | |
| Online Access: | http://irep.iium.edu.my/80045/ http://irep.iium.edu.my/80045/7/80045%20Synthesis%20of%20thiosemicarbazone-based%20colorimetric%20chemosensor.pdf http://irep.iium.edu.my/80045/8/80045%20Synthesis%20of%20thiosemicarbazone-based%20colorimetric%20chemosensor%20SCOPUS.pdf |
| _version_ | 1848788894412177408 |
|---|---|
| author | Abdullah, Erna Normaya Baharu, Nurul Amirah Ahmad, Mohammad Norazmi |
| author_facet | Abdullah, Erna Normaya Baharu, Nurul Amirah Ahmad, Mohammad Norazmi |
| author_sort | Abdullah, Erna Normaya |
| building | IIUM Repository |
| collection | Online Access |
| description | A highly sensitive and selective colorimetric test using an organic compound, namely 2-acetylpyrrole thiosemicarbazone (APT), for the efficient recognition of Cu2+ ions in an aqueous medium has been successfully developed. The optimization of APT in acting as a colorimetric chemosensor was studied using UV-vis spectroscopy. The developed chemosensor in DMSO/Tris-HCl, 1:1, v/v, buffer pH 7 did not show any interference from 15 different metal ions. The limit of detection of the probe for Cu2+ was 19.7 uM. DMSO showed favourable pairing with APT as a medium for APT to act as a chemosensor, as calculated using the COSMO-RS method. Molecular electrostatic potential, Fukui function and time- dependent-DFT (TD-DFT) were successfully performed to characterize and support the experimental data in predicting the interaction that occurs between APT and Cu2+ ions. The NCI-RDG program showed that a non-covalent interaction formed between APT and Cu2+ in acting as a chemosensor. Using naked eye observation, the developed APT test strips also successfully recognized Cu2+ ions in different types of spiked water samples. |
| first_indexed | 2025-11-14T17:48:04Z |
| format | Article |
| id | iium-80045 |
| institution | International Islamic University Malaysia |
| institution_category | Local University |
| language | English English |
| last_indexed | 2025-11-14T17:48:04Z |
| publishDate | 2020 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | iium-800452020-11-19T02:01:47Z http://irep.iium.edu.my/80045/ Synthesis of thiosemicarbazone-based colorimetric chemosensor for Cu2+ ions’ recognition in aqueous medium: Experimental and theoretical studies Abdullah, Erna Normaya Baharu, Nurul Amirah Ahmad, Mohammad Norazmi QD Chemistry A highly sensitive and selective colorimetric test using an organic compound, namely 2-acetylpyrrole thiosemicarbazone (APT), for the efficient recognition of Cu2+ ions in an aqueous medium has been successfully developed. The optimization of APT in acting as a colorimetric chemosensor was studied using UV-vis spectroscopy. The developed chemosensor in DMSO/Tris-HCl, 1:1, v/v, buffer pH 7 did not show any interference from 15 different metal ions. The limit of detection of the probe for Cu2+ was 19.7 uM. DMSO showed favourable pairing with APT as a medium for APT to act as a chemosensor, as calculated using the COSMO-RS method. Molecular electrostatic potential, Fukui function and time- dependent-DFT (TD-DFT) were successfully performed to characterize and support the experimental data in predicting the interaction that occurs between APT and Cu2+ ions. The NCI-RDG program showed that a non-covalent interaction formed between APT and Cu2+ in acting as a chemosensor. Using naked eye observation, the developed APT test strips also successfully recognized Cu2+ ions in different types of spiked water samples. Elsevier 2020-07-15 Article PeerReviewed application/pdf en http://irep.iium.edu.my/80045/7/80045%20Synthesis%20of%20thiosemicarbazone-based%20colorimetric%20chemosensor.pdf application/pdf en http://irep.iium.edu.my/80045/8/80045%20Synthesis%20of%20thiosemicarbazone-based%20colorimetric%20chemosensor%20SCOPUS.pdf Abdullah, Erna Normaya and Baharu, Nurul Amirah and Ahmad, Mohammad Norazmi (2020) Synthesis of thiosemicarbazone-based colorimetric chemosensor for Cu2+ ions’ recognition in aqueous medium: Experimental and theoretical studies. Journal Of Molecular Structure, 1212. pp. 1-10. ISSN 0022-2860 https://www.sciencedirect.com/science/article/abs/pii/S0022286020304191 10.1016/j.molstruc.2020.128094 |
| spellingShingle | QD Chemistry Abdullah, Erna Normaya Baharu, Nurul Amirah Ahmad, Mohammad Norazmi Synthesis of thiosemicarbazone-based colorimetric chemosensor for Cu2+ ions’ recognition in aqueous medium: Experimental and theoretical studies |
| title | Synthesis of thiosemicarbazone-based colorimetric chemosensor for Cu2+ ions’ recognition in aqueous medium: Experimental and theoretical studies |
| title_full | Synthesis of thiosemicarbazone-based colorimetric chemosensor for Cu2+ ions’ recognition in aqueous medium: Experimental and theoretical studies |
| title_fullStr | Synthesis of thiosemicarbazone-based colorimetric chemosensor for Cu2+ ions’ recognition in aqueous medium: Experimental and theoretical studies |
| title_full_unstemmed | Synthesis of thiosemicarbazone-based colorimetric chemosensor for Cu2+ ions’ recognition in aqueous medium: Experimental and theoretical studies |
| title_short | Synthesis of thiosemicarbazone-based colorimetric chemosensor for Cu2+ ions’ recognition in aqueous medium: Experimental and theoretical studies |
| title_sort | synthesis of thiosemicarbazone-based colorimetric chemosensor for cu2+ ions’ recognition in aqueous medium: experimental and theoretical studies |
| topic | QD Chemistry |
| url | http://irep.iium.edu.my/80045/ http://irep.iium.edu.my/80045/ http://irep.iium.edu.my/80045/ http://irep.iium.edu.my/80045/7/80045%20Synthesis%20of%20thiosemicarbazone-based%20colorimetric%20chemosensor.pdf http://irep.iium.edu.my/80045/8/80045%20Synthesis%20of%20thiosemicarbazone-based%20colorimetric%20chemosensor%20SCOPUS.pdf |