Results 31 to 40 of about 9,927 (161)

The synthesis and application of 3-arylazo-4-phenylthieno[2, 3-c]isothiazole and ethyl 3-arylazo-4-phenylthieno[2, 3-c]isothiazole- 5-carboxylate [PDF]

Journal of the Serbian Chemical Society, 2005
The paper describes the synthesis of 3-amino-4-phenylthieno_2,3-c_isothiazole and ethyl 3-amino-4-phenylthieno_2,3-c_isothiazole-5-carboxylate and their utilization to prepare a range of azo disperse dyes.
Pawar G.G., Bineesh P., Kumar P.S.R., Rangnekar D.W., Kanetkar V.R.   +4 more
doaj   +3 more sources

Microwave-assisted rapid and sustainable synthesis of unsymmetrical azo dyes by coupling of nitroarenes with aniline derivatives

iScience, 2022
Summary: Aromatic azo dyes are of immense commercial importance, and the development of greener routes for their synthesis is imperative due to current environmental concerns.
Ankit Thakuri, Mainak Banerjee, Amrita Chatterjee   +2 more
doaj   +1 more source

Synthesis, characterization, and application of novel aryldiazenyl disperse dyes on polyester fabrics

Scientific Reports, 2023
Azo dyes are widely used for dyeing polyester fabrics but require optimization of properties like color strength and fastness. Fourteen novel disperse azo dyes were synthesized from 2,3-naphthalenediol and aniline derivatives to examine their potential ...
Alaa Z. Omar, Asmaa M. Khamis, Ezzat A. Hamed, Samir K. El-Sadany, Elsayed M. Abdel Rehim, Mohamed E. Elba, Mohamed G. Mohamed, Mohamed A. El-Atawy   +7 more
doaj   +1 more source

Potential and prospects of reductases in azo dye degradation: a review

The Microbe
Synthetic dyes, particularly azo dyes, pose environmental and health risks because of their toxicity and persistence. To reduce these negative effects, it is necessary to degrade and detoxify these dyes into simple, non-toxic substances.
Tadele Assefa Aragaw
doaj   +1 more source

NMR spectroscopic investigation of benzothiazolylacetonitrile azo dyes: CR7 substitution effect and semiempirical study

Results in Chemistry, 2021
Ebead et al. had reported in the synthesis and the UV–Visible solvatochromism combined with semiempirical calculations to study the tautomerism of 1,3-benzothiazol-2-ylacetonitrile azo dyes [1].
H.M. Alsoghier, M. Abdellah, H.M. Rageh, H.M.A. Salman, M.A. Selim, M.A. Santos, S.A. Ibrahim   +6 more
doaj   +1 more source

Decolorization of azo dyes in a heterogeneous persulfate system using FeS as the activator

Water Science and Technology, 2021
Textile effluents containing synthetic refractory azo dyes are one of the most important sources of water pollution. However, these kinds of refractory organic pollutants did not resist a persulfate (PS) oxidation process which was correctly activated ...
Haijun Li, Chong Tang, Min Wang, Changgen Mei, Na Liu   +4 more
doaj   +1 more source

Effects of azo dye on simultaneous biological removal of azo dye and nutrients in wastewater [PDF]

Royal Society Open Science, 2018
The potential disrupting effects of Azo dye on wastewater nutrients removal deserved more analysis. In this study, 15 days exposure experiments were conducted with alizarin yellow R (AYR) as a model dye to determine whether the dye caused adverse effects on biological removal of both the dye and nutrients in acclimated anaerobic–aerobic ...
Aihui Chen, Bairen Yang, Yuanqiang Zhou, Yuze Sun, Cheng Ding   +4 more
openaire   +3 more sources

Decolorization of azo dyes by a novel aerobic bacterial strain Bacillus cereus strain ROC

PLoS ONE, 2022
Synthetic dyes are widely used as colorant compounds in various industries for different purposes. Among all the dyestuffs, azo dyes constitute the largest and the most used class of dyes.
Anum Fareed, Habiba Zaffar, Muhammad Bilal, Jamshaid Hussain, Colin Jackson, Tatheer Alam Naqvi   +5 more
doaj   +2 more sources

The Use of Heterocyclic Azo Dyes on Different Textile Materials: A Review

Organics
The art of dyeing textiles has a long history, as natural dyes have been used since prehistoric times. With the development of synthetic dyes in the 19th century, the focus shifted from natural to synthetic dyes due to their superior properties. Recently,
Lucia Emanuele, Maurizio D’Auria
doaj   +1 more source

An Electrochemical Evaluation of Synthesized Coumarin-Azo Dyes as Potential Corrosion Inhibitors for Mild Steel in 1 M HCl Medium

International Journal of Electrochemical Science, 2020
The anti corrosion properties of mild steel were studied in 1.0 M HCl medium with azo-coumarin dyes inhibitor by electrochemical impedance and potentiodynamic polarization measurements.
Mohd Hamizi Yusoff, Mohamad Nurul Azmi, Mohd Hazwan Hussin, Hasnah Osman, Pandian Bothi Raja, Afidah Abdul Rahim, Khalijah Awang   +6 more
doaj   +1 more source