Photocatalytic degradation kinetics in Rhodamine B dye degradation with poriferous TiO_2 photocatalyst

摘要

A type of poriferous TiO_2 material was prepared using cetyl trimethyl ammonium bromide as a template agent and butyl tetra titanate as a precursor. Through studying the photocatalytic kinetic activity of Rhodamine B photocatalytic degradation reaction with a UV-1601PC ultraviolet-visible spectropho-tometer, the photocatalytic degradation process of Rhodamine B was found to not correspond to the first-order kinetic process completely. According to the reaction phenomenon, the photocatalytic degradation process of Rhodamine B with poriferous TiO_2 involved two irreversible reactions. The kinetic model was tested using experimental data.