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Hamukoshi S, Mama N, Schoeman S, Uahengo V. A facile synthesis of a novel 4-hydroxyl-3-azo coumarin based colorimetric probes for detecting Hg 2+ and a fluorescence turn-off response of 3CBD to Fe 3+ in aqueous environment. RSC Adv 2023; 13:31541-31553. [PMID: 37908657 PMCID: PMC10614206 DOI: 10.1039/d3ra04047j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Accepted: 10/23/2023] [Indexed: 11/02/2023] Open
Abstract
Two azo dyes, (E)-3-(benzo[d]thiazol-2-yldiazenyl)-4-hydroxy-2H-chromen-2-one (3CBD) and (E)-4-hydroxy-3-(quinolin-2-yldiazenyl)-2H-chromen-2-one (3CQD), were designed and synthesized using facile methods. The structures were validated through FTIR and NMR spectroscopy. The photophysical property analyses were further studied using UV-Vis and fluorescence spectrophotometers. Consequently, the absorption and emission spectra of 3CBD confirmed its selectivity of Hg2+ and turn-off response to Fe3+. On the other hand, the absorption spectra analysis of 3CQD demonstrated selectivity in the presence of Hg2+. The colorimetric investigations demonstrated a significant visual response specifically for Hg2+, enabling real-time analysis in the corresponding solutions. The presence of other coexisting metal ions does not interfere with the detection of the target metal ion. The fluorescence studies of the two probes revealed that 3CBD was highly fluorescent, which was significantly quenched by Fe3+, upon excitation at 340 nm. Utilizing Job plot analyses, it was determined that the complexes 3CBD-Hg2+ and 3CQD-Hg2+ exhibit a binding stoichiometry of 1 : 1. The association constants for these complexes were measured to be 7.48 × 105 and 9.12 × 105 M-1, respectively, indicating a strong association between both probes and their respective metal ions. Both chemosensors exhibited comparable limits of detection (LOD) and limits of quantification (LOQ) of 0.03 μM and 0.10 μM, respectively. Reversible studies confirmed that only chemosensor 3CQD could serve as a secondary sensor for EDTA. The theoretical studies calculated using Density Functional Theory (DFT) program at B3LYP/6-31G** (Spartan '10 package) level.
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Affiliation(s)
- Simeon Hamukoshi
- Department of Chemistry, Faculty of Science, Nelson Mandela University Port Elizabeth South Africa +264 61 206 3465
| | - Neliswa Mama
- Department of Chemistry, Faculty of Science, Nelson Mandela University Port Elizabeth South Africa +264 61 206 3465
| | - Stiaan Schoeman
- Department of Chemistry, Faculty of Science, Nelson Mandela University Port Elizabeth South Africa +264 61 206 3465
| | - Veikko Uahengo
- Department of Physics, Chemistry and Materials Science, Faculty of Agriculture, Engineering and Natural Sciences, University of Namibia Windhoek Namibia
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Loya M, Ghosh S, Atta AK. A review on dual detection of Cu2+ and Ni2+ ions by using single fluorometric and colorimetric organic molecular probes. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2023.134949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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Altalhi T, Jethave G, Fegade U, Mersal GAM, Ibrahim MM, Mahmoud M, Kumeria T, Isai KA, Sonawane M. Adsorption of Magenta Dye on PbO Doped MgZnO: Interpretation of Statistical Physics Parameters Using Double-Layer Models. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph191912199. [PMID: 36231501 PMCID: PMC9564486 DOI: 10.3390/ijerph191912199] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 09/08/2022] [Accepted: 09/09/2022] [Indexed: 06/02/2023]
Abstract
This article reports the synthesis of PbO doped MgZnO (PbO@MgZnO) by a co-precipitation method, followed by an ultrasonication process. PbO@MgZnO demonstrates a significant adsorption capability toward Magenta Dye (MD). The greatest adsorption capability was optimized by varying parameters such as pH, MD concentration, and adsorbent dose. The kinetics study illustrates that the adsorption of MD on PbO@MgZnO follows the pseudo-second-order. The isotherm study revealed that Langmuir is best fitted for the adsorption, but with little difference in the R2 value of Langmuir and Freundlich, the adsorption process cloud be single or multi-layer. The maximum adsorption capacity was found to be 333.33 mg/g. The negative ΔG refers to the spontaneity of MD adsorption on PbO@MgZnO. The steric parameters from statistical physics models also favor the multi-layer adsorption mechanism. As a function of solution temperature, the parameter n pattern has values of n = 0.395, 0.290, and 0.280 for 298, 308, and 318 K, respectively (i.e., all values were below 1). Therefore, horizontal molecule positioning and multiple locking mechanisms were implicated during interactions between MD and PbO@MgZnO active sites.
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Affiliation(s)
- Tariq Altalhi
- Department of Chemistry, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Ganesh Jethave
- Department of Chemistry, Dr. Annasaheb G. D. Bendale Mahila Mahavidyalaya, Jalgaon 425001, Maharashtra, India
| | - Umesh Fegade
- Department of Chemistry, Bhusawal Arts, Science and P. O. Nahata Commerce College, Bhusawal 425201, Maharashtra, India
| | - Gaber A. M. Mersal
- Department of Chemistry, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Mohamed M. Ibrahim
- Department of Chemistry, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - M.H.H. Mahmoud
- Department of Chemistry, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Tushar Kumeria
- School of Materials Science and Engineering, The University of New South Wales, Sydney, NSW 2052, Australia
| | - Kalpesh A. Isai
- Department of Applied Science and Humanities, R. C. Patel Institute of Technology, Shirpur 425405, Maharashtra, India
| | - Milind Sonawane
- Department of Applied Science and Humanities, R. C. Patel Institute of Technology, Shirpur 425405, Maharashtra, India
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Jethave G, Inamuddin, Fegade U, Altalhi T, Kanchi S, Dhake R. Double-layer modelling and physicochemical parameters interpretation for chromium adsorption on ZnMnOAC nanocomposite. INORG NANO-MET CHEM 2022. [DOI: 10.1080/24701556.2022.2034010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Ganesh Jethave
- School of Environmental and Earth Science, Kavayitri Bahinabai Chaudhari North Maharashtra University, Jalgaon, India
| | - Inamuddin
- Advanced Functional Materials Laboratory, Department of Applied Chemistry, Zakir Husain College of Engineering and Technology, Faculty of Engineering and Technology, Aligarh Muslim University, Aligarh, India
| | - Umesh Fegade
- Department of Chemistry, Bhusawal Arts, Science and P. O. Nahata Commerce College, Bhusawal, India
| | - Tariq Altalhi
- Department of Chemistry, College of Science, Taif University, Taif, Saudi Arabia
| | - Suvardhan Kanchi
- Department of Chemistry, Durban University of Technology, Durban, South Africa
- Department of Chemistry, Sambhram Institute of Technology, Bengaluru, India
| | - Rajesh Dhake
- Department of Chemistry, D. D. N. Bhole College, Bhusawal, India
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Amputu MN, Naimhwaka J, Uahengo V. An ESIPT-ICT steered naphthylthioic-based ionic probe with dual emissive channels exhibiting CHEF and CHEQ effects. RSC Adv 2022; 12:27022-27043. [PMID: 36320834 PMCID: PMC9490809 DOI: 10.1039/d2ra04568k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Accepted: 09/15/2022] [Indexed: 11/30/2022] Open
Abstract
A naphthylthioic-based emissive probe (M) bearing a hydroxyl and amine group was designed and synthesized via a one-step Schiff base reaction process. The probe was characterized spectroscopically using 1H NMR, UV-Vis and fluorescence spectrophotometers. The probe turned out to be spectroscopically and colorimetrically selective and sensitive to multiple cations and anions. Interestingly, the probe displayed characteristics of excited-state intramolecular proton transfer (ESIPT)-driven dual emissive channels; experiencing fluorescence enhancement upon the molar additions of Al3+ as well as the anions used, events presumably ascribed to chelation fluorescence enhancement (CHEF), hydrogen bonding and deprotonation effects. Moreover, the fluorometric titration with Hg2+ resulted in ratiometric spectral behaviors of M, with the disappearance of the peak at 450 nm, concomitant with the appearance of a new peak at 520 nm, distinguished by a clear isosbestic point, the same behaviors exhibited by Sn2+ and Ag+ analytes towards M. The introduction of all other cations used, resulted in fluorescence quenching, attributable to chelation enhanced fluorescence quenching (CHEQ), thereby inhibiting the ESIPT process. The experiments were all carried out in the aqueous environment medium of DMSO–H2O (9 : 1) at ambient temperature. Theoretical density functional theory calculations were carried out to gain insight into the interaction of M with cations and anions, and their influence on the HOMO–LUMO energy gaps. A naphthylthioic-based emissive probe (M) bearing a hydroxyl and amine group was designed and synthesized via a one-step Schiff base reaction process.![]()
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Affiliation(s)
- Martha N. Amputu
- Department of Physics, Chemistry and Material Science, University of Namibia, 340 Mandume Ndemufayo Avenue, Windhoek, 9000, Namibia
| | - Johannes Naimhwaka
- Department of Physics, Chemistry and Material Science, University of Namibia, 340 Mandume Ndemufayo Avenue, Windhoek, 9000, Namibia
| | - Veikko Uahengo
- Department of Physics, Chemistry and Material Science, University of Namibia, 340 Mandume Ndemufayo Avenue, Windhoek, 9000, Namibia
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Patil NS, Dhake RB, Ahamed MI, Fegade U. A Mini Review on Organic Chemosensors for Cation Recognition (2013-19). J Fluoresc 2020; 30:1295-1330. [DOI: 10.1007/s10895-020-02554-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Accepted: 05/11/2020] [Indexed: 11/28/2022]
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Singh H, Bhargava G, Kumar S, Singh P. Quadruple-signaling (PET, ICT, ESIPT, C N rotation) mechanism-based dual chemosensor for detection of Cu 2+ and Zn 2+ ions: TRANSFER, INH and complimentary OR/NOR logic circuits. J Photochem Photobiol A Chem 2018. [DOI: 10.1016/j.jphotochem.2018.02.030] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Torawane P, Sahoo SK, Borse A, Kuwar A. A new Schiff base as a turn-off fluorescent sensor for Cu2+
and its photophysical properties. LUMINESCENCE 2017; 32:1426-1430. [DOI: 10.1002/bio.3341] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Revised: 03/21/2017] [Accepted: 03/31/2017] [Indexed: 12/24/2022]
Affiliation(s)
- Pritam Torawane
- School of Chemical Sciences; North Maharashtra University; Jalgaon Mississippi India
| | - Suban K. Sahoo
- Department of Applied Chemistry; SV National Institute of Technology; Surat Gujarat India
| | - Amulrao Borse
- School of Chemical Sciences; North Maharashtra University; Jalgaon Mississippi India
| | - Anil Kuwar
- School of Chemical Sciences; North Maharashtra University; Jalgaon Mississippi India
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Chalmardi GB, Tajbakhsh M, Bekhradnia A, Hosseinzadeh R. A highly sensitive and selective novel fluorescent chemosensor for detection of Cr3+ based on a Schiff base. Inorganica Chim Acta 2017. [DOI: 10.1016/j.ica.2017.03.041] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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