Results 21 to 30 of about 271,522 (260)

A New Azo Dye for the Selective Detection of Glycine [PDF]

open access: yes, 2021
In this manuscript, we report the synthesis of new azo dye (E)-4-((5-methoxythiazolo[4,5-b]pyridine-2-yl)diazenyl)N-phenylaniline (BK2). This new azo dye revealed a pink color in the solution.
Nidhi, Gour   +2 more
core   +1 more source

Degradation kinetics of azo dye by ozonation in water [PDF]

open access: yes, 2013
Decomposition of azo dye by ozonation was investigated. A methyl orange (MO) was used as a typical compound of azo dye. Concentration of MO in water was adjusted to 200 mg/L.
KATO, Shigeru   +6 more
core   +1 more source

Preparation and spectral diagnosis of an AZO derived from 4-Amino Acetophenon and its complex preparation with Ferrous [PDF]

open access: yesمجلة التربية والعلم, 2008
: Azo dye is prepared by Diazoniom salt method derive from 4-amino acetophenon and salicylic acid, the product compound is Acetophenon-4, azo-N,4-salicylic acid which identified by infra red spectra IR and the visible spectrum in acetone solvent.
Theyaa Mohsen
doaj   +1 more source

The preparation of " salicylic acid azo 2,2,4,4 tetrahydroxybenzophenon" dye using Dowex in the acidic form as a catalyst

open access: yesTikrit Journal of Pure Science, 2023
The preparation of azo dye derivative  from " p- amino Salicylic acid " through preparation diazonium salt from aromatic amine followed by coupling reaction with (2,2,4,4-tetrahydroxybenzophenonto) was carried out to give (salicylic acid azo 2,2,4,4 ...
Ammar A. Dawood   +2 more
doaj   +1 more source

Effect of dye structure and redox mediators on anaerobic azo and anthraquinone dye reduction

open access: yesQuímica Nova, 2012
We investigated the biological decolourisation of dyes with different molecular structures. The kinetic constant values (k1) achieved with azo dye Reactive Red 120 were 7.6 and 10.1 times higher in the presence of RM (redox mediators) AQDS and riboflavin,
Mayara Carantino Costa   +4 more
doaj   +1 more source

Surface Modification, Characterization and Photocatlytic Performance of Nano-Sized Titania modified with Silver and Bentonite clay [PDF]

open access: yes, 2009
In many textile industries dyes are used as coloring agents. Advanced oxidation processes are used for degrading or removing color from dye baths. Catalysts play a key role in these industries for the treatment of water.
Jana, Asim K   +5 more
core   +2 more sources

Experimental data for synthesis of bi-metalized chitosan particle for attenuating of an azo dye from wastewater

open access: yesData in Brief, 2016
In this data article, we introduce data acquired from new adsorbent, bi-metalized chitosan particle that is successfully synthesized and applied to remove the orange II dye, an azo dye, from textile wastewater.
Abdollah Hajivandi   +3 more
doaj   +1 more source

Efeitos dos parâmetros operacionais na fotodegradação do azo corante direct red 23 na interface dióxido de titânio/água Effects of operational parameters on the photodegradation of direct red 23 azo dye at the titanium dioxide/water interface

open access: yesQuímica Nova, 2007
The decolorization and degradation of direct red 23 azo dye have been investigated in aqueous suspension of titanium dioxide under artificial irradiation.
Débora Nobile Clausen, Keiko Takashima
doaj   +1 more source

Site‐Specific Protein Bioconjugation Through Cellular Incorporation of Noncanonical Amino Acids

open access: yesAngewandte Chemie, EarlyView.
Genetic code expansion (GCE) enables site‐specific installation of noncanonical amino acids containing bioorthogonal conjugation handles, allowing precise, homogeneous protein modification. This review examines the principles of orthogonal translation, surveys the chemistries available for chemoselective labeling, and highlights emerging multi‐site ...
Rahul Sarkar   +2 more
wiley   +2 more sources

Exploiting stored TiO2 electrons for multi-electron reduction of an azo dye methyl orange in aqueous suspension

open access: yesJournal of Saudi Chemical Society, 2018
The mechanism of multi-electron reduction of methyl orange (MO) azo dye on TiO2 nanoparticles has been studied performing stopped flow technique. A multi-electron reduction of azo dye has been investigated.
Hanan H. Mohamed, Nuhad A. Alomair
doaj   +1 more source

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