Comparison of four oxidants activated through tetraacetylethylenediamine for developing sustainable and rapid degradation of organic dye / Yongchun Dong in COLORATION TECHNOLOGY, Vol. 136, N° 4 (08/2020)  

[article]  inCOLORATION TECHNOLOGY > Vol. 136, N° 4 (08/2020) . - p. 389-403 Titre : Comparison of four oxidants activated through tetraacetylethylenediamine for developing sustainable and rapid degradation of organic dye Type de document : texte imprimé Auteurs : Yongchun Dong, Auteur ; Liran Bien, Auteur ; Congcan Zhang, Auteur ; Bing Li, Auteur Année de publication : 2020 Article en page(s) : p. 389-403 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Colorants -- Détérioration Colorants azoïques Oxydants Phytotoxicité Tests de toxicité Tétra-acétyl-éthylène-diamine Index. décimale : 667.3 Teinture et impression des tissus Résumé : Four common oxidants, including hydrogen peroxide (H2O2), sodium percarbonate (SPC), sodium perborate (SPB) and sodium persulphate (SPS), were activated with tetraacetylethylenediamine (TAED) to degrade an azo dye, CI Reactive Red 195, in water, for building a novel and rapid oxidative system comprising the merits of cost‐effectiveness and high sustainability. Elevated temperature and high pH level enhanced the activation effect of TAED for accelerating dye degradation. Peracetic acids were confirmed to be the main oxidative species for dye degradation in four TAED/oxidant systems. Hydroxyl radicals and sulphate radicals were also involved in dye degradation in the TAED/SPS system, which showed a stronger oxidative capacity than the other three systems over a wide pH range. More importantly, the addition of inorganic salts or surfactants also favoured the dye degradation in TAED/oxidant systems. Although a slow mineralisation process of the dye was found when the TAED/SPC or SPS system was used, low‐toxic intermediates were detected after the degradation. Note de contenu : - EXPERIMENTAL : Reagents and materials - Experimental procedures - Analytical methods - Phytotoxicity tests - RESULTS AND DISCUSSION : Optimisation of CI reactive red 195 degradation in TAED/oxidant systems - Contribution of active species to dye degradation - Possible degradation pathway of CI reactive red 195 in TAED/oxidant systems - Effect of inorganic salts and surfactants - Phytotoxicity assessment of dye decomposition products DOI : https://doi.org/10.1111/cote.12474 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12474 Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34355 [article]

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Degradation of azo dye by the fluidised-bed Fenton process / Massakul Pukdee-Asa in COLORATION TECHNOLOGY, Vol. 128, N° 1 (2012)  

[article]  inCOLORATION TECHNOLOGY > Vol. 128, N° 1 (2012) . - p. 28-35 Titre : Degradation of azo dye by the fluidised-bed Fenton process Type de document : texte imprimé Auteurs : Massakul Pukdee-Asa, Auteur ; Chia-Chi Su, Auteur ; Chavalit Ratanatamskul, Auteur ; Ming-Chun Lu, Auteur Année de publication : 2012 Article en page(s) : p. 28-35 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Colorants -- Détérioration Colorants azoïques Fenton, Réaction de Fluidisation Index. décimale : 667.6 Peintures Résumé : A fluidised-bed Fenton process was utilised for the homogeneous and heterogeneous Fenton degradation of three azo dyes: CI Reactive Black 5, CI Reactive Orange 16 and CI Reactive Blue 2. The effects of the concentration of Fe2+ and hydrogen peroxide on the decolorisation and degradation of the azo dyes were examined. More than 96% of colour removal of the azo dyes was achieved using the fluidised-bed Fenton process. Chemical oxygen demand (COD) removal of the three azo dyes followed pseudo-second-order kinetics at various Fe2+ and hydrogen peroxide concentrations. COD removal of the three azo dyes increased with increasing Fe2+ concentration and was more than 85%. In addition, the COD removal efficiency of the three types of azo dyes first increased and then decreased as the hydrogen peroxide concentration increased. Presumably, the scavenging effect of hydrogen peroxide on hydroxyl radicals occurs at high concentrations of hydrogen peroxide. The most efficient COD removal was found at 160–220 mg/l hydrogen peroxide. More than 80% of the COD was eliminated at pH 3 in 20 mg/l Fe2+ and 160 mg/l hydrogen peroxide for CI Reactive Black 5, 25 mg/l Fe2+ and 160 mg/l hydrogen peroxide for CI Reactive Orange 16 and 20 mg/l Fe2+ and 160 mg/l hydrogen peroxide for CI Reactive Blue 2. Note de contenu : - EXPERIMENTAL : Materials - Methods and reactor - RESULTS AND DISCUSSION : Effect of different carriers on the removal of azo dyes - Effect of Fe2+ and hydrogen peroxide concentrations - Comparison of COD removal efficiency DOI : 10.1111/j.1478-4408.2011.00325.x En ligne : http://onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2011.00325.x/pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=13094 [article]

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Degradation of CI Reactive Red 141 by heterogeneous Fenton-like process over iron-containing ZSM-5 zeolites / Yadigar C. Yaman in COLORATION TECHNOLOGY, Vol. 129, N° 1 (02/2013)  

[article]  inCOLORATION TECHNOLOGY > Vol. 129, N° 1 (02/2013) . - 69-75 Titre : Degradation of CI Reactive Red 141 by heterogeneous Fenton-like process over iron-containing ZSM-5 zeolites Type de document : texte imprimé Auteurs : Yadigar C. Yaman, Auteur ; Gönül Gündüz, Auteur ; Meral Dükkanci, Auteur Année de publication : 2013 Article en page(s) : 69-75 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Catalyseurs Colorants -- Détérioration Colorants -- Oxydation Colorants réactifs Fenton, Réaction de Fer Peroxyde d'hydrogène Le peroxyde d'hydrogène (H2O2), communément appelé eau oxygénée ou encore perhydrol (appellation industrielle), est un composé chimique liquide et visqueux, aux puissantes propriétés oxydantes (il est aussi réducteur). C'est donc un agent blanchissant efficace qui sert de désinfectant et (à haute concentration) d'oxydant ou monergol dans les fusées spatiales. Zéolites Index. décimale : 667.3 Teinture et impression des tissus Résumé : The Fenton-like oxidation of CI Reactive Red 141 was investigated over iron-containing ZSM-5 zeolites. Iron was loaded by ion exchange or through hydrothermal synthesis. The oxidation process was carried out in an aqueous solution using hydrogen peroxide as the oxidant. The catalyst prepared by ion exchange with a silicon/aluminium ratio of 42 zeolite showed the highest activity (97% decolorisation and 52% chemical oxygen demand reduction at an initial pH of 3.5) after an oxidation duration of 2 h. The chemical oxygen demand reduction increased with the increasing amount of iron loaded to the zeolite. The FeZSM-5 catalyst, prepared by hydrothermal synthesis in the presence of oxalic acid, showed very good activity in terms of mineralisation (99% of chemical oxygen demand reduction). The iron leaching was noticeably low (below the European Union directives of 2 mg dm−3) for the above-mentioned catalysts. Note de contenu : - EXPERIMENTAL : Materials - Catalyst preparation - Catalyst characterisation - Catalytic activity tests - RESULTS AND DISCUSSION : X-ray diffraction studies - Scanning electron microscopy studies - FTIR studies - Nitrogen adsorption studies - Chemical composition of the ZSM-5 samples - Temperature-programmed reduction with hydrogen studies - Heterogeneous Fenton-like oxidation studies of CI Reactive Red 141 over the catalysts prepared DOI : 10.1111/cote.12001 En ligne : http://onlinelibrary.wiley.com/doi/10.1111/cote.12001/pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=17189 [article]

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Electrochemical treatment of Methyl Orange dye wastewater by rotating disc electrode : optimisation using response surface methodology / Palani Ramasamy in COLORATION TECHNOLOGY, Vol. 128, N° 6 (2012)  

[article]  inCOLORATION TECHNOLOGY > Vol. 128, N° 6 (2012) . - p. 434-439 Titre : Electrochemical treatment of Methyl Orange dye wastewater by rotating disc electrode : optimisation using response surface methodology Type de document : texte imprimé Auteurs : Palani Ramasamy, Auteur ; Natesan Balasubramanian, Auteur Année de publication : 2012 Article en page(s) : p. 434-439 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Bains de teinture -- Recyclage Colorants -- Détérioration Colorants -- Oxydation Eaux usées -- Recyclage Electrochimie Réacteurs électrochimiques Surfaces de réponse (statistique) Index. décimale : 667.3 Teinture et impression des tissus Résumé : In the present investigation, a novel rotating disc electrochemical reactor has been developed to treat Methyl Orange dye effluent. Stainless steel and ruthenium oxide-coated titanium electrodes were used as cathode and anode, respectively. A statistical tool of the Box–Behnken method has been used to design the experimental run and optimisation. The combined effect of the operating parameter on the efficiency of the process has been critically examined. A quadratic model for reduction of chemical oxygen demand has been developed. A maximum of 96% chemical oxygen demand removal was observed under optimum conditions. The degradation mechanism was studied by ultraviolet–visible spectrophotometer, Fourier Transform–infrared and high-performance liquid chromatography. From the present investigation, it has been observed that dyehouse effluent can be effectively treated using the novel electrochemical reactor. Note de contenu : - EXPERIMENTAL : Response surface methodology - RESULTS AND DISCUSSION : The combined effect of operating parameters on dye effluent degradation - Electrolysis performance under optimum condition - Instrumental analysis of raw and treated effluent DOI : 10.1111/j.1478-4408.2012.00387.x En ligne : http://onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2012.00387.x/pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=16444 [article]

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Experimental study on supercritical water oxidation of CI Reactive Orange 7 dye wastewater using response surface methodology / Jie Zhang in COLORATION TECHNOLOGY, Vol. 128, N° 4 (2012)  

[article]  inCOLORATION TECHNOLOGY > Vol. 128, N° 4 (2012) . - p. 323-330 Titre : Experimental study on supercritical water oxidation of CI Reactive Orange 7 dye wastewater using response surface methodology Type de document : texte imprimé Auteurs : Jie Zhang, Auteur ; Shuzhong Wang, Auteur ; Yang Guo, Auteur ; Donghai Xu, Auteur ; Yanmeng Gong, Auteur ; Xingying Tang, Auteur Année de publication : 2012 Article en page(s) : p. 323-330 Note générale : Errata (voir URL) - Bibliogr. Langues : Anglais (eng) Catégories : Colorants -- Détérioration Colorants -- Oxydation Colorants azoïques Eaux usées -- Epuration Fluides supercritiques Surfaces de réponse (statistique) Index. décimale : 667.3 Teinture et impression des tissus Résumé : Supercritical water oxidation of azo dye CI Reactive Orange 7 solution was investigated in a batch reactor. Response surface methodology was employed for the experimental design. Quadratic polynomial equations were established based on the results of the experiments. Optimisation of the process was then conducted in accordance with the simulated equations. The results show that removal of chemical oxygen demand, total organic carbon and total nitrogen can be achieved up to 99, 95 and 69%, respectively, and the predictive data were in reasonable agreement with the experimental results. It seems that response surface methodology is useful and feasible for the optimisation of CI Reactive Orange 7 dye wastewater supercritical water oxidation processing. The gas chromatography/mass spectrometry analysis results show that a large amount of 2,4-pentadienenitrile with diazo formed during the CI Reactive Orange 7 supercritical water oxidation reaction, which suggested that the azo firstly reacted to the diazo, and then converted into the final product of nitrogen. Note de contenu : - EXPERIMENTAL : Experimental apparatus and procedure - Materials and analytical methods - Calculation methods - Experimental design - RESULTS AND DISCUSSION : Model establishment for supercritical water oxidation of CI Reactive Orange 7 dye wastewater - Optimisation for supercritical water oxidation treatment of CI Reactive Orange 7 dye wastewater DOI : 10.1111/j.1478-4408.2012.00384.x En ligne : http://onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2012.00384.x/pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=15682 [article]

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Iron(III) complexes promote hydrogen peroxide activation for efficient degradation of dyeing wastewater / Shouying Wu in COLORATION TECHNOLOGY, Vol. 140, N° 3 (06/2024)  

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Microwave-assisted preparation of pyrite and its sensitisation of titanium dioxide in self-cleaning aramid fabrics / Chenghui Zheng in COLORATION TECHNOLOGY, Vol. 134, N° 4 (08/2018)  

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New electrochemical methods for the reduction of vat dyes / Albert Roessler / 2003    

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New insights into dye chemistry and physics / Stephen N. Batchelor in COLORATION TECHNOLOGY, Vol. 131, N° 2 (04/2015)  

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Non-thermal plasma degradation of dye using an underwater dielectric barrier discharge created inside a porous hydrophobic ceramic tube / Jin-Oh Jo in COLORATION TECHNOLOGY, Vol. 131, N° 2 (04/2015)  

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Novel heterogeneous photocatalysts prepared with waste wool and Fe3+ or Cu2+ ions for degradation of CI Reactive Red 195: a comparative study / Guixin Cui in COLORATION TECHNOLOGY, Vol. 133, N° 3 (06/2017)  

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Plasma-photocatalytic degradation of dyeing wastewater : comparison of titanium oxide, zinc oxide, and graphene oxide / Doo Il Jang in COLORATION TECHNOLOGY, Vol. 130, N° 2 (04/2014)  

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Prediction of photofading of N-B-hydroxyethylamino-o-nitrophenyl derivatives : a theoretical study / Krzysztof Wojciechowski in COLORATION TECHNOLOGY, Vol. 137, N° 2 (04/2021)  

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Prediction of the photofading of 1-H or 1-ethyl derivatives of 3-cyano-6-hydroxy-4-methyl-5-(p-X-phenylazo)-2-pyridone dyes and their azo-hydrazone tautomerism: A theoretical study / Krzysztof Wojciechowski in COLORATION TECHNOLOGY, Vol. 139, N° 3 (06/2023)  

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Preparation and characterisation of silver or copper-doped TiO2 catalysts and their catalytic activity in dye degradation / Oleksandr Lozovskyi in COLORATION TECHNOLOGY, Vol. 131, N° 3 (06/2015)  

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Preparation and photocatalytic activity of chitosan-supported cobalt phthalocyanine membrane / Rong-Min Wang in COLORATION TECHNOLOGY, Vol. 130, N° 1 (02/2014)  

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Thermal regeneration of spent coal-based activated carbon using carbon dioxide : process optimisation, Methylene Blue decolorisation isotherms and kinetics / Xin-Hui Duan in COLORATION TECHNOLOGY, Vol. 128, N° 6 (2012)  

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