Adsorption of brilliant green, toluidine blue and trypan blue dyes onto SVTPUP@ZnONPs was investigated by Batch technique. Known concentration 25 ml of dye solution in different tubes at the same pH with Constant amount of SVTPUP@ZnONPs was mixed for pumping 1h. The residual dye solution was measured by UV-vis spectrophotometer at ? max specializes for Br.
G, To.B and Tr.B dyes to get absorbance.
By knowing C? (initial concentration, mg/L) and Ce (concentration of dye remains, mg/L), V is the volume of Br.G, To.B and Tr.B dyes and m is gram added from SVTPUP@ZnONPs. The percentage removal (%E) of dyes and capacity of SVTPUP@ZnONPs was calculated by equations: %E=(C?-C_e)/C?×100 (1)Q=C?EV?m (2)