An effective colorimetric sensor for detecting Cu2+ based on benzothiazole moiety / Boeon suh in COLORATION TECHNOLOGY, Vol. 137, N° 5 (10/2021)  

[article]  inCOLORATION TECHNOLOGY > Vol. 137, N° 5 (10/2021) . - p. 512-519 Titre : An effective colorimetric sensor for detecting Cu2+ based on benzothiazole moiety Type de document : texte imprimé Auteurs : Boeon suh, Auteur ; Donghwan Choe, Auteur ; Cheal Kim, Auteur Année de publication : 2021 Article en page(s) : p. 512-519 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Capteurs (technologie) Colorimétrie Composés organiques -- Synthèse Ions cuivre Index. décimale : 667.3 Teinture et impression des tissus Résumé : An effective colorimetric chemosensor, 2,4-dichloro-6-((E)-(((Z)-3-methylbenzo[d]thiazol-2(3H)-ylidene)hydrazono)methyl)phenol (HMD), was synthesised for Cu2+ detection. HMD with benzothiazole moiety showed a large bathochromic shift (153 nm) and a definite colour change for Cu2+. HMD could detect Cu2+ down to 0.47 μmol/L in the solution phase and could clearly distinguish it from other metal ions, even in the test strip. The binding mode between HMD and Cu2+ was determined to be 1:1 using Job plot and electrospray ionisation mass spectrometry. The sensing mechanism of HMD for Cu2+ was illustrated as the combination of metal-to-ligand charge transfer and intramolecular charge transfer via theoretical calculation. Note de contenu : - EXPERIMENTAL : Materials and equipment - Synthesis of sensor HMD - Ultraviolet-visible selectivity - UV-vis titrations - Job plot - Competitive tests - 1H NMR titration - Colorimetric strips - Calculations for HMD and HMD-Cu2+ - RESULTS AND DISCUSSION : Colorimetric examinations of HMD towards Cu2° - Theoretical calculations of HMD and HMD-Cu2+ DOI : https://doi.org/10.1111/cote.12548 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12548 Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36508 [article]

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Colorimetric chemosensor for Cu(II) from electrospun nanofibrous mat mixed with 5-methoxy-salicylaldehyde azine / Apisit Karawek in COLORATION TECHNOLOGY, Vol. 138, N° 1 (02/2022)  

[article]  inCOLORATION TECHNOLOGY > Vol. 138, N° 1 (02/2022) . - p. 38-46 Titre : Colorimetric chemosensor for Cu(II) from electrospun nanofibrous mat mixed with 5-methoxy-salicylaldehyde azine Type de document : texte imprimé Auteurs : Apisit Karawek, Auteur ; Pipattra Mayurachayakul, Auteur ; Apisama Dilokpramuan, Auteur ; Choladda Srisuwannaket, Auteur ; Kornkanya Pratumyot, Auteur ; Withawat Mingvanish, Auteur ; Mongkol Sukwattanasinitt, Auteur ; Pinit Kidkhunthod, Auteur ; Nakorn Niamnont, Auteur Année de publication : 2022 Article en page(s) : p. 38-46 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Acétate de cellulose L'acétate de cellulose est une matière plastique inventée en 1865. C'est l'ester acétate de la cellulose. Capteurs chimiques Caractérisation Colorimétrie Composés organiques -- Synthèse Electrofilature Ions cuivre Ligands Nanofibres Index. décimale : 677.46 Cellulosiques : rayonnes, acetates Résumé : The condensation product of 5-methoxy-salicylaldehyde with hydrazine hydrate (referred to below as compound 1) was used as a ligand in a cellulose acetate electrospun nanofibrous mat to determine copper ions in aqueous solutions. The electrospun nanofibrous mats, based on cellulose acetate mixed with compound 1, were constructed using an electrospinning method and had a diameter of 260 nm. The sensing nanofibrous mat exhibited a sensitive and selective response for Cu(II) ions over a linear concentration range of 1-30 µM in a 0.1 M HEPES buffer (pH 7.4) using a colorimeter. The detection limit of the method was 1.04 µM lower than the maximum level of Cu(II) in drinking water (16 µM, as determined by the US Environmental Protection Agency). Additionally, it exhibited high selectivity for Cu(II) ions over 13 other cations. The sensing nanofibrous mat was fully reversible for ethylenediamine tetraacetic acid treatment cycles. Preliminary results indicated the sensitivity and selectivity of the nanofibrous mat for detecting Cu(II) ions by naked-eye detection from yellow to orange. The reaction product of compound 1 and the Cu(II) ion was studied using X-ray absorption spectroscopy. The Cu-coordination number was approximately 5.023 ± 1.42, and the Cu–N distance (R) was 1.986 Ã…. The nanofibrous mat demonstrated a convenient and straightforward Cu(II) ion-detection technique in both wastewater and water environments. Note de contenu : - EXPERIMENTAL : Materials and methods - Analytical instruments - Synthesis of compound - Electrospinning and characterisation of CA nanofibrous mat mixed with compound - General procedure for visual detection of Cu(II) ions of the nanofibrous mat using a colorimeter - X-ray absorption near-edge structure measurement for Cu-oxidation number determination of compound 1–Cu complex - Real samples of Cu(II) detection using the nanofibrous mat - RESULTS AND DISCUSSION : Synthesis of compound - Fabrication and characterisation of compound 1-incorporated CA nanofibrous mat - Optimal conditions for Cu(II) ion-sensing using the nanofibrous mat - Cu(II) ion detection - Interference study - XANES measurement for Cu-oxidation number determination of compound 1–Cu complex - Real sample detection - The reusability and reproducibility of the nanofibrous mat - Table 1 : The percentage recovery data for the detection of Cu(II) in spiked wastewater samples (n = 3) - Table 2 : Comparison of the Cu(II) ion-sensing properties of different sensors DOI : https://doi.org/10.1111/cote.12567 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12567 Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37497 [article]

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A colorimetric chemosensor for selective detection of copper ions / Ahran Kim in COLORATION TECHNOLOGY, Vol. 136, N° 6 (12/2020)  

[article]  inCOLORATION TECHNOLOGY > Vol. 136, N° 6 (12/2020) . - p. 459-467 Titre : A colorimetric chemosensor for selective detection of copper ions Type de document : texte imprimé Auteurs : Ahran Kim, Auteur ; Ju Byeong Chae, Auteur ; Chang Joo Rha, Auteur ; Cheal Kim, Auteur Année de publication : 2020 Article en page(s) : p. 459-467 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Capteurs chimiques Colorimétrie Ions cuivre Produits chimiques -- Détection Index. décimale : 535.6 Couleur Résumé : A water-applicable hexamethylbenzene (HMB) chemosensor, (E)-2-((2-hydroxy-3-methoxybenzylidene)amino)benzamide, displayed a selective colour change from colourless to yellow in the existence of copper ions. The detection limit was computed as 1.57 µmol/L, which is substantially lower than the World Health Organisation guideline (31.5 µmol/L) for copper ions. Probe HMB could also sense and quantify copper ions in real water samples. The coordination mode of HMB to copper ions was demonstrated through Job plot, electrospray ionisation mass spectroscopy and proton nuclear magnetic resonance titration, and was also supported by theoretical studies. Note de contenu : - MATERIALS AND METHODS : General - Synthesis of the HMB compound HMB ((E)-2-((2-hydroxy-3-methoxybenzylidene)amino)benzamide) - Colorimetric analysis for Cu(II) - Calculations - RESULTS AND DISCUSSION : Colorimetric sensing for Cu(II) - Theoretical calculations DOI : https://doi.org/10.1111/cote.12491 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12491 Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34699 [article]

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A new, highly potent 1,8-naphthalimide-based fluorescence turn-off chemosensor capable of detecting Cu(II) ions in real-world water samples / Chuang Li in COLORATION TECHNOLOGY, Vol. 134, N° 3 (06/2018)  

[article]  inCOLORATION TECHNOLOGY > Vol. 134, N° 3 (06/2018) . - p. 230-239 Titre : A new, highly potent 1,8-naphthalimide-based fluorescence turn-off chemosensor capable of detecting Cu(II) ions in real-world water samples Type de document : texte imprimé Auteurs : Chuang Li, Auteur ; Xintong Han, Auteur ; Shanshan Mao, Auteur ; Stephen Opeyemi Aderinto, Auteur ; Xinkui Shi, Auteur ; Kesheng Shen, Auteur ; Huilu Wu, Auteur Année de publication : 2018 Article en page(s) : p. 230-239 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Analyse quantitative (chimie) Eaux usées -- Recyclage Ions cuivre Produits chimiques -- Détection Récupération (Déchets, etc.) Index. décimale : 667.3 Teinture et impression des tissus Résumé : The synthesis of a new 1,8-naphthalimide-based fluorescence turn-off chemosensor for the effective detection of Cu(II) ions is reported. The chemosensor MAST was characterised by mp, Fourier Transform-infrared (FTIR), ultraviolet-visible (UV-vis), fluorescence, 1H-NMR and 13C-NMR spectroscopy, and mass spectrometry. After treatment with Cu(II) ions in coexistence with various competitive metal ions in a dimethylsulphoxide (DMSO)/4-2-hydroxyethyl)-1-piperazineethanesulphonic acid (HEPES) buffer solution (v/v, 1:1; pH 7.4), the chemosensor demonstrated high selectivity towards Cu(II) ions and a fluorescence quenching of 83.67% was observed. In addition, a good linear response for the chemosensor detecting Cu(II) ions was obtained over the concentration range 0.2–1 µm. The combined results of UV-vis and fluorescence titrations with the Job plot yielded a 1:1 stoichiometric interaction of the chemosensor with Cu(II) ions. The association constant and detection limit were calculated as 1.37 x 10-6 m-1 and 1.69 x 10-8 m, respectively. Based on results, the quenching response of MAST towards Cu(II) ions could be ascribed to the reverse-photoinduced electron transfer (PET) mechanism. Finally, the proposed chemosensor was applied to quantify Cu(II) ions in real-world water samples and excellent recovery rates of 98–105.8% were obtained. Note de contenu : - EXPERIMENTAL : Reagents and materials - Instrumentation - Procedures for spectroscopic measurements - Procedures for spectroscopic measurements - Synthesis - Synthesis of intermediate compound 2, 3 and 4 - Synthesis of the proposed chemosensor, MAST - RESULTS AND DISCUSSION : Synthesis and characterisation - Investigation of the photophysical properties of MAST - Investigation of the effect of pH on the sensing properties of MAST - UV-vis and fluorescence titration of MAST towards Cu(II) ions - Spectroscopic assessment of MAST in the presence of various metal ions - Selectivity study of MAST for Cu(II) ions over competitive metal ions - Determination of the soichiometric ratio and binding constant - Determination of the detection limit of MAST - Propsed sensing mechanism - response time - Real-worl application of MAST for Cu(II) quantification DOI : 10.1111/cote.12340 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12340 Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=30647 [article]

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Photoassisted degradation of CI reactive red 195 using and Fe(III)-grafted polytetrafluoroethylene fibre complex as a novel heterogeneous Fenton catalyst over a wide pH range / Bing Li in COLORATION TECHNOLOGY, Vol. 129, N° 6 (12/2013)  

[article]  inCOLORATION TECHNOLOGY > Vol. 129, N° 6 (12/2013) . - p. 403-411 Titre : Photoassisted degradation of CI reactive red 195 using and Fe(III)-grafted polytetrafluoroethylene fibre complex as a novel heterogeneous Fenton catalyst over a wide pH range Type de document : texte imprimé Auteurs : Bing Li, Auteur ; Yongchun Dong, Auteur ; Ding Zhizhong, Auteur Année de publication : 2013 Article en page(s) : p. 403-411 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : acrylique, Acide L'acide acrylique ou acide acroléïque ou acide prop-2-énoïque est un composé organique de formule brute C3H4O2 et de formule semi-développée CH2=CHCOOH. C'est un acide carboxylique et un alcène vinylique, et se présente comme un liquide incolore à l'odeur âcre. L'acide acrylique et ses esters, les acrylates, sont utilisés dans la fabrication de matières plastiques, dans les peintures acryliques et dans divers autres polyacryliques qui ont de multiples usages. Catalyse hétérogène Colorants azoïques Colorants réactifs -- Détérioration Colorants réactifs -- Effets du rayonnement ultraviolet Copolymères greffés Fenton, Réaction de Fer trivalent Greffage (chimie) Ions cuivre Oxydation pH Polytétrafluoréthylène Teinture -- Fibres textiles synthétiques Index. décimale : 667.3 Teinture et impression des tissus Résumé : Polytetrafluoroethylene fibre was grafted with acrylic acid to form an effective ligand, which coordinated with Fe(III) ions to prepare an Fe(III)-grafted polytetrafluoroethylene fibre complex. The photoassisted degradation of a typical azo dye, CI Reactive Red 195, using the Fe(III)-grafted polytetrafluoroethylene fibre complex as a novel heterogeneous Fenton catalyst in a wide pH range of 3–9 was investigated. In order to achieve better degradation in a higher pH range, the effect of Fe content, incorporation of Cu(II) ions and UV light irradiation on dye degradation was also examined. The results indicated that dye degradation was effective in the presence of the Fe(III)-grafted polytetrafluoroethylene fibre complex. Fast degradation of the dye can take place in an acidic environment. Increasing the Fe content or incorporating Cu(II) ions can significantly accelerate dye degradation, and UV light irradiation is much more effective than visible light irradiation in a higher pH range, especially in the alkaline pH range. Note de contenu : - EXPERIMENTAL : Materials and reagents - Graft polymerization of polytetrafluoroethylene fibres - Preparation of metal-grafted fibre complexes - Charaterisation of metal-grafted fibre complexes - Photocatalytic reaction set-up - Degradation procedure and analysis - RESULTS AND DISCUSSION : Characterisation of metal-grafted fibre complexes - Metal ions leaching from the catalyst - Heterogeneous decomposition of dye at different solution pH - Fe content of the catalyst - Cu(II) ion as the assistant metal ion - UV light irradiation DOI : 10.1111/cote.12049 En ligne : http://onlinelibrary.wiley.com/doi/10.1111/cote.12049/pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=19739 [article]

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A rhodamine B-based colorimetric chemosensor for sensitive and selective detection of Cu2+ : Test strip analysis and density functional theory / Jae Sung Heo in COLORATION TECHNOLOGY, Vol. 139, N° 1 (02/2023)  

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A selective sulphur-containing colorimetric chemosensor for Cu2+ / Hangyul Lee in COLORATION TECHNOLOGY, Vol. 135, N° 6 (12/2019)  

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The influence of copper(II) ions on wool photostability in the dry state / Hu Zhang in COLORATION TECHNOLOGY, Vol. 129, N° 5 (10/2013)  

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The infuence of metal complex dye stability and dye interaction in aqueous solution on within-skin, within-pack and pack to pack colour variation / W. R. Dyson in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 63, N° 1 (01-02/1979)  

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Thiocarbazone-appended coumarin : An easily accessible ratiometric fluorescent chemosensor for multianalyte (Zn2+ and Cu2+) systems / Mu-Xuan Lv in COLORATION TECHNOLOGY, Vol. 138, N° 2 (04/2022)  

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