Batch technique was carried out for studying adsorption of Br
Batch technique was carried out for studying adsorption of Br.G, To.B and Tr.B dyes onto SVTPUP@ZnONPs. Different volume were taken from stock solutions of dyes and diluted to 25 ml water at the same pH. 25 ml of these dyes were added to specific amount of SVTPUP@ZnONPs and shacked for 1 h at room temperature. The absorbance of filtered solution were measured spectrophotometrically at maximum wavelength for Br.G, To.B and Tr.B dyes. 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 the mass of SVTPUP@ZnONPs (g). 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