Analysis of samples was carried out based on standard methods and the calibration curves of basic orange and methyl violet dyes are shown in Figures 6(a) and 6(b), respectively.
The effect of contact time on the adsorption % of methyl violet dye is shown in Figure 8(a) and the effect of contact time on adsorption capacity of methyl violet dye is shown in Figure 8(b).
Name of pollutant Maximum adsorption Reference (mg[L.sup.-1]) Direct blue-86 33.78  Methylene blue 18.6  Rhodamine B 14.3, 3.23 [29, 30] Congo red 14.0 14.0, 22.4 [29, 30] Acid violet 17 19.88 [28, 30] Name of pollutant Maximum adsorption Reference (mg [L.sup.-1]) Methyl violet
11.5  Amido black 7.9  Direct red 80 21.05 [31, 32] Direct red 23 10.72 [31, 32] Violet B 49.2 This study Violet 5R 87.26 This study
Lower (2.5-20 mg/L) and higher (100-1000 mg/L) range of feed concentration of basic fuchsin and methyl violet dyes were prepared in distilled water at different pH and also in distilled water with varied molar concentration of sodium chloride and calcium chloride.
The dye adsorption was studied in a batch experiment with 50 mL aqueous solution of 5 mg/L basic fuchsin and methyl violet dyes for 48 h at 25[degrees]C.
In order to observe the catalytic activity of TiSi[W.sub.12][O.sub.40]/Ti[O.sub.2], comparison of photocatalytic activity of catalysts was carried out at the initial methyl violet concentration of 20 mg/L, pH 5.5, and 0.3 g of catalyst.
To investigate the influence of initial concentration on the degradation efficiency of methyl violet, the initial concentration was varied from 5 to 40mg/L, keeping the other experimental conditions constant.
Methyl violet (MV) is a cationic dye which has an aromatic structure which is resistant to light and biological activity .
The progress of the photocatalytic decolorization of methyl violet was monitored by withdrawing 10 mL of the sample at 20 min intervals.
Jaleh, "Enhancement of methyl violet
removal by modification of Ti[O.sub.2] nanoparticles with AgI, " Journal of Industrial and Engineering Chemistry, vol.
Comments: DCC expanded its color and performance palette with the strategic acquisition of the organic pigment product lines of Max Marx Color Corporation, including Rhodamines PR.81:3, PV.1, Copper Ferrocynamides PR.169,PV.27, PB.62, Methyl Violet
PV.3, Victoria Blue PB.1, Diamond Green PG.1.
Comments: Methyl Violet
(PV 3) (AArbor Code 1003W) is used in solvent inks (NC, NC/PA) and water, and offers high gloss and stability.