A large percentage of dye removal was due to the large number of negatively charged binding sites on the adsorbent, which provides affinity for
cationic dyes [22].
Removal of
Cationic Dyes from Aqueous Solution using Magnetic Multi-Wall Carbon Nanotube Nanocomposite as Adsorbent.
They consist of
cationic dyes for semi-permanent applications that are in compliance with global regulations, as well as a vast portfolio of intense colors for natural and pastel tones.
Disperse dyes give excellent overall fastness properties with polyester whereas basic dyes are water soluble
cationic dyes where the coloured part has a positive charge, interacts with the negative group (either carboxyl or sulfonic acid group) of the fibre molecule (Choi et al., 2000).
Pui, "Studies on adsorption capacity of
cationic dyes on several magnetic nanoparticles," Acta Chemica Iasi, vol.
A comparative adsorption study with different industrial wastes as adsorbents for the removal of
cationic dyes from water.
It has been proven that the affinity of MAC to
cationic dyes is much higher than that to anionic dyes.
Jiao, "Starch-derived carbon aerogels with high-performance for sorption of
cationic dyes," Polymer, vol.
The surface of the adsorbent gets negatively charged and favors uptake of
cationic dyes to increased electrostatic force of attraction.
R3 (where R is an alkyl or aryl radical) and the CI- or CH3SO4- anion in an aliphatic chain or in a heterocycle.Cationic dyes, usually azo, anthraquinone, or polymethine dyes, are used for dyeing polyacrylonitrile fibers.