Academic literature on the topic 'Azo dyes'

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Journal articles on the topic "Azo dyes"

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Stick, Robert V., and Mauro Mocerino. "Azo dyes." Journal of Chemical Education 73, no. 6 (1996): 540. http://dx.doi.org/10.1021/ed073p540.2.

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Mirkovic, Jelena, Gordana Uscumlic, Aleksandar Marinkovic, and Dusan Mijin. "Azo-hydrazone tautomerism of aryl azo pyridone dyes." Chemical Industry 67, no. 1 (2013): 1–15. http://dx.doi.org/10.2298/hemind120309053m.

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In the last three or four decades disperse dyes derived from pyridones (in particular azo pyridone dyes) have gained in importance, and are widely used in various fields. These compounds have excellent coloration properties, and are suitable for the dyeing of polyester fabrics. Basic features of these dyes are simplicity of their synthesis by diazotation and azo coupling. They generally have high molar extinction coefficient with medium to high light and wet fastness. The absorption maxima of these dyes show their visible absorption wavelength ranging from yellow to orange, which can be attrib
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Das, Anik, and Xu Lei. "Synthesis and investigation of dyeing properties of 8-hydroxyquinoline based azo dyes & 1-naphthylamine based azo dyes." Journal of Textile Engineering & Fashion Technology 9, no. 6 (2023): 182–88. http://dx.doi.org/10.15406/jteft.2023.09.00354.

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A facile and well-known synthetic strategy has been used to prepare this novel 8-hydroxyquinoline-based azo dye to apply as a disperse dye to polyester fabric. In this method, 8-hydroxyquinoline possessing a “privileged structure” which is made up of two rings, a phenol ring fused with pyridine ring, has been coupled with diazonium salt obtained from 1-Napthylamine. As-synthesized dyes are used as disperse to polyester fabric, and the dyed samples were characterized for color fastness to washing, rubbing, and perspiration. The fastness testing results indicate that the dyes have a good affinit
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Windy Dwiasi, Dian, and Mardiyah Kurniasih. "STUDI DEGRADASI ZAT PEWARNA AZO, METIL ORANYE MENGGUNAKAN FERRAT (FeO42-)." Molekul 3, no. 1 (2008): 15. http://dx.doi.org/10.20884/1.jm.2008.3.1.42.

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Synthesis of ferrate and its application to azo dyes degradation have been investigated. The synthesis was carried out by reacting Fe(NO3)3 solution with NaOCl in alkaline condition. Oxidation reaction of azo dyes was carried out by adjusting the molar ratio of ferrate to azo dyes. When ferrate reacted with azo dyes, its absorbance was monitored using UV-Vis spectrophotometer at pH condition that had been optimized. Kinetics study for azo dyes degradation was carried out at the absorbance maximum of azo dyes, as a function of time. Ferrate can oxidize azo dyes, methyl oranye effectively in opt
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Biradar, Siddanagouda, Ryohei Kasugai, Hisayoshi Kanoh, et al. "Liquid azo dyes." Dyes and Pigments 125 (February 2016): 249–58. http://dx.doi.org/10.1016/j.dyepig.2015.10.024.

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Mavlonov, Mirzoolim H., Dmitry N. Kuznetsov, and Konstantin I. Kobrakov. "Azo compounds based on 2-(4'-aminophenyl)-4-quinoline carboxylic acid: synthesis and properties." Butlerov Communications 61, no. 1 (2020): 146–51. http://dx.doi.org/10.37952/roi-jbc-01/20-61-1-146.

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Synthesis and studies of the properties of dyes for coloring textile materials from fibers of various chemical structures, which contain, in addition to chromophore, also pharmacophore groups in the molecule, which impart biocidal properties to both the dyes themselves and the materials dyed by them, are interesting both theoretically and from an applied point of view. The article presents data on the synthesis of a series of previously undescribed azo compounds based on 2-(4'-aminophenyl)-4-quinolinecarboxylic acid and aromatic hydroxy- and aminocompounds of the naphthalene series. Five napht
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Mijin, Dusan, Gordana Uscumlic, Natasa Valentic, and Aleksandar Marinkovic. "Synthesis of azo pyridone dyes." Chemical Industry 65, no. 5 (2011): 517–32. http://dx.doi.org/10.2298/hemind110428037m.

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Over 50% of all colorants which are used nowdays are azo dyes and pigments, and among them arylazo pyridone dyes (and pigments) have became of interest in last several decades due to the high molar extinction coefficient, and the medium to high light and wet fastness properties. They find application generally as disperse dyes. The importance of disperse dyes increased in the 1970s and 1980s due to the use of polyester and nylon as the main synthetic fibers. Also, disperse dyes were used rapidly since 1970 in inks for the heat-transfer printing of polyester. The main synthetic route for the pr
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Ahmed, Hoda A., Mohamed A. El-Atawy, Fowzia S. Alamro, Nada S. Al-Kadhi, Omaima A. Alhaddad, and Alaa Z. Omar. "Mesomorphic, Computational Investigations and Dyeing Applications of Laterally Substituted Dyes." Molecules 27, no. 24 (2022): 8980. http://dx.doi.org/10.3390/molecules27248980.

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Two groups of laterally substituted non-mesomorphic and liquid crystalline materials bearing monoazo group were prepared and investigated via experimental and theoretical techniques. The molecular structures of the designed dyes were evaluated by FT-IR and NMR spectroscopic analyses. Mesomorphic examinations for all synthesized dyes were investigated by polarized optical microscopy (POM) and differential scanning calorimetry (DSC). Results revealed that, the thermal and optical properties of investigated compounds are mainly dependent on their molecular geometry. The optimized geometries of th
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Ali, Afnan Nasser. "A comprehensive study of natural and synthetic dyes: their properties, methods of preparation, and uses." SHIFAA 2024 (January 3, 2024): 1–17. http://dx.doi.org/10.70470/shifaa/2024/001.

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The use of natural dyes in the dying process was one of the oldest procedures used by the ancients. Obtaining dyes from natural sources means extracting them from plants and animals. Colors are derived from natural sources. Dyes can be divided into two categories: natural dyes and synthetic dyes. Synthetic dyes include saffron dyes and azo dyes, the latter being one of several types of organic compounds that are produced in large quantities through industrial processes. Dyeing is a process that involves the use of dyes in the dyeing process of textiles and food products. Fabrics are colored wi
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Xu, Hui, Yajuan Zhang, Yong Cheng, Weiguo Tian, Zeting Zhao, and Jin Tang. "Polyaniline/attapulgite-supported nanoscale zero-valent iron for the rival removal of azo dyes in aqueous solution." Adsorption Science & Technology 37, no. 3-4 (2019): 217–35. http://dx.doi.org/10.1177/0263617418822917.

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In this paper, polyaniline/attapulgite (PANI/APT)-supported nanoscale zero-valent iron (nZVI) composites were synthesized by liquid-phase chemical reduction method and used for the removal of two kinds of dyes. The structure of as-prepared nZVI/PANI/APT was characterized by various test methods. The removal property and degradation mechanism for azo (alizarin yellow R, methyl red, chrome black T, methyl orange) and non-azo (methylene blue, rhodamine B) dyes in aqueous solution were investigated. The presence of PANI/APT can decrease the aggregation of nZVI particles with maintenance of reactiv
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Dissertations / Theses on the topic "Azo dyes"

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Ip, Wui Man. "Enhanced biodegradation and adsorption for treating dye-containing effluents /." View abstract or full-text, 2009. http://library.ust.hk/cgi/db/thesis.pl?BIEN%202009%20IP.

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McNair, Craig. "Synthetic approaches to substituted Ca4B-type azo compounds." Thesis, University of Strathclyde, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.366902.

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Beydilli, Mumtaz Inan. "Reductive biotransformation and decolorization of reactive azo dyes." Diss., Georgia Institute of Technology, 2001. http://hdl.handle.net/1853/21451.

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Jansen, Lisinka M. G. "Photochemistry and photophysics of azo dyes." Thesis, Loughborough University, 1997. https://dspace.lboro.ac.uk/2134/28271.

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The photodegradation of azo dyes in solution and on cotton has been investigated. This is a major problem, because of the widespread use of this class of dyes to dye cotton. The photochemical pathways leading to photo degradation and the properties of the excited states and photophysical deactivation processes were studied. Many of the commercially used azo dyes are 1-aryl-2-naphthols with one or more azo groups which undergo azo-hydrazone tautomerism.
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Zhang, Lei. "Structure-property relationships of azo dyes for dye-sensitized solar cells." Thesis, University of Cambridge, 2014. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.708314.

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Murray, S. G. "Solution and polymer photochemistry of azo dyes." Thesis, University of Leeds, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.371437.

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Merrington, James. "Towards the combinatorial synthesis of azo dyes." Thesis, University of Southampton, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.274573.

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Gottlieb, Anna Louise. "Microbial degradation of textile dyes to safe end-products." Thesis, Nottingham Trent University, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.273769.

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Campbell, Mairi. "Development of a surface enhanced resonance Raman scattering (SERRS) method for the determination of 2,4,6-trinitrotoluene." Thesis, University of Strathclyde, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.366875.

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Hughes, Mhairi Patricia Hughes. "Surface enhanced resonance Raman scattering as an in situ probe." Thesis, University of Strathclyde, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.248287.

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Books on the topic "Azo dyes"

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Atacag Erkurt, Hatice, ed. Biodegradation of Azo Dyes. Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-11847-0.

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Sandhu, Punam. Genetic toxicity of chrysoidine azo dyes. University of Birmingham, 1990.

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Shah, Maulin P. Microbial Remediation of Azo Dyes with Prokaryotes. CRC Press, 2022. http://dx.doi.org/10.1201/9781003130932.

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Myslak, Z. Azofarbmittel auf der Basis krebserzeugender und -verdächtiger aromatischer Amine: Identifikation, Verwendungsbereiche, Herstellungszeiträume. Bundesanstalt für Arbeitsschutz, 1990.

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R, Dempsey Clyde, Dostal Kenneth A, and Water Engineering Research Laboratory, eds. Fate of water soluble azo dyes in the activated sludge process: Project summary. U.S. Environmental Protection Agency, Water Engineering Research Laboratory, 1988.

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F, Ruttan R. Derivatives of tolidin. s.n., 1985.

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Ormerod, Andrew Paul. The formation of chromonic liquid crystals by water-soluble azo-dyes. University of Salford, 1994.

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International, Conference on "Modern Aspects of Protein-Dye Interaction Role in Downstream Processing" (1st 1988 Compiègne France). Protein-dye interactions: Developments and applications. Elsevier Applied Science, 1989.

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Peters, Tansy M. Studies on the activation of azo-dyes into direct-acting genotoxic agents by enterococcus faecalis. University of East London, 1995.

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Fellowship, Overseas Missionary, ed. Kankanta pagdaydayaw di Apo Dyos. 8th ed. Overseas Missionary Fellowship, 1986.

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Book chapters on the topic "Azo dyes"

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SchÜssler, Peter, Christoph G. Grevelding, and Werner Kunz. "Azo Dyes." In Nonradioactive Analysis of Biomolecules. Springer Berlin Heidelberg, 2000. http://dx.doi.org/10.1007/978-3-642-57206-7_17.

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Gordon, Paul Francis, and Peter Gregory. "Azo Dyes." In Organic Chemistry in Colour. Springer Berlin Heidelberg, 1987. http://dx.doi.org/10.1007/978-3-642-82959-8_3.

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Alston, Frances, and Onwuka Okorie. "Azo dyes." In Occupational Exposures. CRC Press, 2023. http://dx.doi.org/10.1201/9781003220114-4.

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Stevenson, Donald D. "Tartrazine, Azo, and Non-Azo Dyes." In Food Allergy. John Wiley & Sons Ltd, 2014. http://dx.doi.org/10.1002/9781118744185.ch31.

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Khalid, Azeem, Muhammad Arshad, and David Crowley. "Bioaugmentation of Azo Dyes." In The Handbook of Environmental Chemistry. Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/698_2009_42.

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Sibi, G. "Biodegradation of Azo Dyes." In Environmental Biotechnology. CRC Press, 2022. http://dx.doi.org/10.1201/9781003272618-14.

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Choudhari, Jyoti Kant, Mukesh Kumar Verma, Jyotsna Choubey, Anandkumar J. Sweta Singh, and Biju Prava Sahariah. "Bioremediation of Azo Dyes." In Microbial Remediation of Azo Dyes with Prokaryotes. CRC Press, 2022. http://dx.doi.org/10.1201/9781003130932-13.

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Sreedharan, Veena, and Kokati Venkata Bhaskara Rao. "Biodegradation of Textile Azo Dyes." In Nanoscience and Biotechnology for Environmental Applications. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-319-97922-9_5.

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Mondal, Pijush Kanti, and Brajesh Chauhan. "Biodegradation of Azo Dyes from Wastewater." In Environmental Chemistry for a Sustainable World. Springer Netherlands, 2011. http://dx.doi.org/10.1007/978-94-007-2439-6_6.

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Dias, Albino A., Marco S. Lucas, Ana Sampaio, José A. Peres, and Rui M. F. Bezerra. "Decolorization of Azo Dyes by Yeasts." In The Handbook of Environmental Chemistry. Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/698_2009_49.

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Conference papers on the topic "Azo dyes"

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Tadić, Julijana D., Jelena M. Lađarević, Maja D. Marković, Aleksandra M. Ivanovska, Mirjana M. Kostić, and Dušan Ž. Mijin. "A NOVEL AZO-AZOMETHINE DYE: SYNTHESIS, DYEING AND ANTIOXIDANT PROPERTIES." In 1st INTERNATIONAL Conference on Chemo and BioInformatics. Institute for Information Technologies, University of Kragujevac, 2021. http://dx.doi.org/10.46793/iccbi21.379t.

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Schiff bases, or azomethine compounds, are commonly employed in the fields of organic synthesis, metal complexes, materials, and engineering. Especially, they have gained importance in medicinal researches, considering their antimicrobial, anticancer, anti- inflammatory, and antioxidant properties. On the other side, azo dyes are the most significant group of synthetic dyes, utilized in textile fiber dyeing. Conjugation of Schiff bases with azo compounds leads to the class of azo-azomethine dyes, which have numerous applications related to their coloration and biological properties. Viscose is
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Kadhim, Ali Ghazi, Murtadha Abid Ali Farahn, and Raghad Mohammed Saleh. "Synthesis of new (azo methin)-dyes." In 2ND INTERNATIONAL CONFERENCE ON ENGINEERING & SCIENCE. AIP Publishing, 2021. http://dx.doi.org/10.1063/5.0068911.

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Sahraoui, B., R. Czaplicki, and F. Kajzar. "Functionalized Carbazole Azo Dyes for Nonlinear Optical Application." In Proceedings of LFNM 2006. 8th International Conference on Laser and Fiber-Optical Networks Modeling. IEEE, 2006. http://dx.doi.org/10.1109/lfnm.2006.251965.

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Xu, Hao, and Wei Yan. "Decolorization of Azo Dyes Wastewater by Electrochemical Oxidation." In 2009 3rd International Conference on Bioinformatics and Biomedical Engineering (iCBBE 2009). IEEE, 2009. http://dx.doi.org/10.1109/icbbe.2009.5162572.

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Marques, Nayally Rayany S., Max Taylo A. Lima, Giovannia A. L. Pereira, and Goreti Pereira. "Catalytic Degradation of Azo Dyes by Silver Nanoparticles." In ASEC 2022. MDPI, 2023. http://dx.doi.org/10.3390/asec2022-13952.

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Kippelen, Bernard, Sandalphon, Nasser Peyghambarian, Scott R. Lyon, Anne B. Padias, and Henry K. Hall. "Azo-dye-doped photorefractive polymers." In Organic Thin Films for Photonic Applications. Optica Publishing Group, 1993. http://dx.doi.org/10.1364/otfa.1993.thc.3.

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Since its recent discovery1, photorefractivity in polymers2-7 has attracted particular attention because photorefractive materials are versatile media for reversible optical storage applications and because organic materials like polymers have potential advantages over inorganic photorefractive crystals: low dielectric constant, ease of processing, and low cost. The capabilities of this new class of composites materials6 have rapidly reached a level comparable to those of some inorganic crystals and further improvement is expected since the magnitude of some intrinsic parameters such as the el
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Mašulović, Aleksandra, Anita Lazić, Ivana Đorđević, et al. "Assessing the pharmacological potential of synthetic colorants with pyridone core." In 37th International Congress on Process Industry. SMEITS, 2024. http://dx.doi.org/10.24094/ptk.024.299.

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Azo dyes are known as structurally diverse class of organic compounds bearing one or more azo groups (–N=N–) as a bridge between organic residues of which at least one is an aromatic moiety. This group of synthetic dyes is obtained easily by the reaction of diazo coupling with high yield. The importance of azo dyes is reflected in the fact that they account for 60 % of the total number of the dye structures known to be manufactured and used in the coloration of textiles, leather, plastics and cosmetics. Aside from their traditional usage, azo dyes are known for their therapeutic properties and
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Lee, S., R. J. Liang, and J. W. Peng. "Atmospheric pressure plasma decomposition of azo dyes in water." In 2011 IEEE 38th International Conference on Plasma Sciences (ICOPS). IEEE, 2011. http://dx.doi.org/10.1109/plasma.2011.5993279.

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Zhiguo, Tang, Chang-qi Chen, Jian-ping Cheng, Changrong Pang, and Zhi-xia Zheng. "Degradation of Azo Dyes by Hybrid Ultrasound-Fenton Reagent." In 2008 2nd International Conference on Bioinformatics and Biomedical Engineering (ICBBE '08). IEEE, 2008. http://dx.doi.org/10.1109/icbbe.2008.402.

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Vernille, James, and Scott Williams. "Lightfast properties of azo and polycyclic aromatic imaging dyes." In Photonics West '98 Electronic Imaging, edited by George M. Williams, Jr. SPIE, 1998. http://dx.doi.org/10.1117/12.304576.

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Reports on the topic "Azo dyes"

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Zaharieva, Katerina, Irina Stambolova, Maria Shipochka, et al. Photocatalytic Performance of Phosphorus Doped Titanium Dioxide Nanomaterials for Degradation of Reactive Black 5 Azo Dye. "Prof. Marin Drinov" Publishing House of Bulgarian Academy of Sciences, 2020. http://dx.doi.org/10.7546/crabs.2020.10.07.

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GAFNER, STEFAN. Bilberry fruit extract laboratory guidance document. ABC-AHP-NCNPR Botanical Adulterants Prevention Program, 2015. https://doi.org/10.59520/bapp.lgd/zlfx4530.

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Market demand for bilberry (Vaccinium myrtillus, Ericaceae) fruit extracts, combined with high prices and falling profit margins have resulted in unscrupulous manufacturers selling various ingredients labeled “bilberry extract.” Adulteration predominantly occurs with anthocyanin-rich extracts from other species, e.g., bog bilberry (V. uliginosum), lingonberry (V. vitis-idaea), European elder (Sambucus nigra, Adoxaceae), and Chinese mulberry (Morus australis, Moraceae). Additional adulterants reportedly include black soybean (Glycine max, Fabaceae) hull or black rice (Oryza sativa, Poaceae) ext
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