Experimental study of photocatalytic removal of basic blue 9 industrial textile dye with TiO2 nanopowder and influencing factors

In this study, the photocatalytic degradation of basic blue 9 (methylene blue) was investigated in UV/T(i)O(2) system. The effect of initial concentration of dye, temperature, UV power and pH on the removal ratio was ascertained and optimum conditions for maximum degradation were determined. The results obtained showed that basic pH is proper for the photocatalytic removal of methylene blue.In addition higher temperature and lower initial concentration of dye leads to higher dye removing. The experimental decolorization kinetics data followed the pseudo-first-order reaction model.

کلیدواژه ها:

methylene blue ، TiO2 photocatalysis ، textile dye removing ،