Bonelli, "Reactivity of bare and Fe-doped alumino-silicate nanotubes (imogolite) with H2O2 and the azo-dye
Acid Orange 7," Catalysis Today, vol.
Treatment of orange II azo-dye
by electrocoagulation (EC) technique in a continuous flow cell using sacrificial iron electrodes.
So, in an NLC cell with the initially irradiated layer, subsequent illumination with reorienting light which polarization differs from the one used to prepare the layer can trigger the light-induced reorientation of the easy axis which is governed by the photoinduced reordering of azo-dye
molecules  and maybe of considerable interest for applications such as LC rewritable devices .
Lv et al., "Photodegradation of azo-dyes
in aqueous solution by polyacrylonitrile nanofiber mat-supported metalloporphyrins," Polymer International, vol.
Modelling, Modelling Heterocyclic Azo-dye
Affinities for Cellulose Fibres by Computational Approaches, Dyes and Pigments, 94, 278 (2012).
El-Rassy, "Adsorption kinetics and thermodynamics of azo-dye
Orange II onto highly porous titania aerogel," Chemical Engineering Journal, vol.
Adsorption is favored by hydroxyl-, nitro - and azo-dyes
. Presence of sulpho-groups in acid dyes reduce the possibility of adsorption process, whereas these groups do not influence the adsorption in case of reactive and direct dyes , which show responses to this method.
Prevot et al., "Azo-dyes
photocatalytic degradation in aqueous suspension of Ti[O.sub.2] under solar irradiation," Chemosphere, vol.
An integrated (electro- and bio-oxidation) approach for remediation of industrial wastewater containing azo-dyes
: Understanding the degradation mechanism and toxicity assessment.
Solar photocatalytic degradation of azo-dyes
by photo-Fenton process, Dyes and Pigments 69: 44-150.
The removal of sulphonated azo-dyes
by coagulation with chitosan.
Heavy metals, azo-dyes
and pesticides are the widely reported pollutants in Pakistan.