Congo red Dye Removal from Simulated Textile Wastewaters over a neat and silver Doped Zinc Oxide Nanoparticles. A Kinetics Study

[...]doped Ag particles ZnO can act as a sink for capturing of conduction band electrons and preventing their recombination with h+VB. [...]they have a sufficient time to react with pre-adsorbed species and hence increase the efficiency of the photo catalyzed reaction. [...]the dye itself absorb light at high concentration so the efficiency of light absorbing reduced and light can't absorb by photocatalyst. According to above equation, kapp is a time independent constant 49 By plotting 1/kapp verse Co of CR a straight line and the slope is 1/k with intercept equal 1/Kk and The results are presented in Figure 11. According to Arrhenius equation, the rate of photocatalytic reaction is mainly dependent on temperature of the reaction and so that increasing reaction temperature is expected to rise of the rate of photo catalytic dye removal over the used photo catalyst.