Electrochemical synthesis of poly 4, 4′-methylenedianiline /graphene oxide composite by in situ method as sensitive and selective sensor of thioanisole
Background: Sulfur compounds with undesirable properties present in oil and petroleum products have become a global concern, prompting scientists to conduct research into the identification and removal of these compounds. Methods: A voltammetric sensor based on a poly4.4′-methylenedianiline /graphen...
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Elsevier
2025-07-01
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| Series: | Results in Chemistry |
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| author | Esmail Mohseni Abdolrasoul Rahmani Ali Kazemi Zahra Hamdi |
| author_facet | Esmail Mohseni Abdolrasoul Rahmani Ali Kazemi Zahra Hamdi |
| author_sort | Esmail Mohseni |
| collection | DOAJ |
| description | Background: Sulfur compounds with undesirable properties present in oil and petroleum products have become a global concern, prompting scientists to conduct research into the identification and removal of these compounds. Methods: A voltammetric sensor based on a poly4.4′-methylenedianiline /graphene oxide electrode (PMDA/GO) has been developed for the sensitive and selective detection of thioanisole. The electrosynthesis of the polymer composite was performed by in situ method. No crosslinker was used for polymer synthesis. Non-covalent bonding such as π-π stacking effect between PMDA/GO and thioanisole, made the compact imprinted polymer and imprinted sites.Poly (4.4′-methylenedianiline)/graphene oxide were characterized by Field emission scanning electron microscopy, UV–Vis spectroscopy, Thermogravimetric analysis, Differential thermal analysis and differential scanning calorimetry. By Cyclic voltammetry was also found that the poly PMDA/GO exhibit good specific detection of thioanisol when used as molecular imprinted polymer (MIP) electrodes. Significant findings: The obtained cyclic voltammograms of the MIP electrode showed one irreversible anodic peak at ∼1.5 V. The square wave cathodic current exhibits a linear response to thioanisol over a concentration range of 50(mg L−1) to 200(mg L−1) with a correlation coefficient (R2) of 0.979, a detection limit (LOD) 7 mg L−1 and a quantification limit (LOQ) 26 mg L−1. The proposed method for thioanisole detection shows that the imprinted sensor exhibits improved sensitivity to thioanisole compared to a non-imprinted polymer (NIP). |
| format | Article |
| id | doaj-art-a7da9e2ae37d4a76961a8296e511d321 |
| institution | DOAJ |
| issn | 2211-7156 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Elsevier |
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| series | Results in Chemistry |
| spelling | doaj-art-a7da9e2ae37d4a76961a8296e511d3212025-08-20T03:23:33ZengElsevierResults in Chemistry2211-71562025-07-011610245110.1016/j.rechem.2025.102451Electrochemical synthesis of poly 4, 4′-methylenedianiline /graphene oxide composite by in situ method as sensitive and selective sensor of thioanisoleEsmail Mohseni0Abdolrasoul Rahmani1Ali Kazemi2Zahra Hamdi3Department of Environmental Health Engineering, Faculty of Evaz Health, Larestan University of Medical Sciences, Larestan, Iran; Corresponding author.Department of Occupational Health and Safety, Faculty of Evaz Health, Larestan University of Medical Sciences, Larestan, IranDepartment of Chemical Engineering, university of Sistan and Baluchestan,Zahedan. IranDepartment of Environmental Health Engineering, Faculty of Evaz Health, Larestan University of Medical Sciences, Larestan, IranBackground: Sulfur compounds with undesirable properties present in oil and petroleum products have become a global concern, prompting scientists to conduct research into the identification and removal of these compounds. Methods: A voltammetric sensor based on a poly4.4′-methylenedianiline /graphene oxide electrode (PMDA/GO) has been developed for the sensitive and selective detection of thioanisole. The electrosynthesis of the polymer composite was performed by in situ method. No crosslinker was used for polymer synthesis. Non-covalent bonding such as π-π stacking effect between PMDA/GO and thioanisole, made the compact imprinted polymer and imprinted sites.Poly (4.4′-methylenedianiline)/graphene oxide were characterized by Field emission scanning electron microscopy, UV–Vis spectroscopy, Thermogravimetric analysis, Differential thermal analysis and differential scanning calorimetry. By Cyclic voltammetry was also found that the poly PMDA/GO exhibit good specific detection of thioanisol when used as molecular imprinted polymer (MIP) electrodes. Significant findings: The obtained cyclic voltammograms of the MIP electrode showed one irreversible anodic peak at ∼1.5 V. The square wave cathodic current exhibits a linear response to thioanisol over a concentration range of 50(mg L−1) to 200(mg L−1) with a correlation coefficient (R2) of 0.979, a detection limit (LOD) 7 mg L−1 and a quantification limit (LOQ) 26 mg L−1. The proposed method for thioanisole detection shows that the imprinted sensor exhibits improved sensitivity to thioanisole compared to a non-imprinted polymer (NIP).http://www.sciencedirect.com/science/article/pii/S2211715625004345Electrochemical sensorMolecular imprintingThioanisolePoly (4.4′-methylenedianiline)/graphene oxideElectrochemical synthesis of polymer |
| spellingShingle | Esmail Mohseni Abdolrasoul Rahmani Ali Kazemi Zahra Hamdi Electrochemical synthesis of poly 4, 4′-methylenedianiline /graphene oxide composite by in situ method as sensitive and selective sensor of thioanisole Results in Chemistry Electrochemical sensor Molecular imprinting Thioanisole Poly (4.4′-methylenedianiline)/graphene oxide Electrochemical synthesis of polymer |
| title | Electrochemical synthesis of poly 4, 4′-methylenedianiline /graphene oxide composite by in situ method as sensitive and selective sensor of thioanisole |
| title_full | Electrochemical synthesis of poly 4, 4′-methylenedianiline /graphene oxide composite by in situ method as sensitive and selective sensor of thioanisole |
| title_fullStr | Electrochemical synthesis of poly 4, 4′-methylenedianiline /graphene oxide composite by in situ method as sensitive and selective sensor of thioanisole |
| title_full_unstemmed | Electrochemical synthesis of poly 4, 4′-methylenedianiline /graphene oxide composite by in situ method as sensitive and selective sensor of thioanisole |
| title_short | Electrochemical synthesis of poly 4, 4′-methylenedianiline /graphene oxide composite by in situ method as sensitive and selective sensor of thioanisole |
| title_sort | electrochemical synthesis of poly 4 4 methylenedianiline graphene oxide composite by in situ method as sensitive and selective sensor of thioanisole |
| topic | Electrochemical sensor Molecular imprinting Thioanisole Poly (4.4′-methylenedianiline)/graphene oxide Electrochemical synthesis of polymer |
| url | http://www.sciencedirect.com/science/article/pii/S2211715625004345 |
| work_keys_str_mv | AT esmailmohseni electrochemicalsynthesisofpoly44methylenedianilinegrapheneoxidecompositebyinsitumethodassensitiveandselectivesensorofthioanisole AT abdolrasoulrahmani electrochemicalsynthesisofpoly44methylenedianilinegrapheneoxidecompositebyinsitumethodassensitiveandselectivesensorofthioanisole AT alikazemi electrochemicalsynthesisofpoly44methylenedianilinegrapheneoxidecompositebyinsitumethodassensitiveandselectivesensorofthioanisole AT zahrahamdi electrochemicalsynthesisofpoly44methylenedianilinegrapheneoxidecompositebyinsitumethodassensitiveandselectivesensorofthioanisole |