Effect of heterogeneous catalysts on radiolysis of aqueous solutions of phenol

Peculiarities of phenol aqueous solution radiolysis under conditions of continuous liquid flow through the layer of solid sorbent or various heterogeneous catalysts (MnO2, Pt, Ni, Ni-Pd), applied on activated carbons, are investigated. γ-radiation dose rate is 3 Gy/s, the dose is 0.36 kGy. Data on radiation-chemical yields of phenol destruction in the presence of sorbent and heterogeneous catalysts are presented. It is shown that during heterogeneous radiolysis of phenol in all the cases its more effective removal as compared with homogeneous one takes place; simultaneously, selective effect of the surface nature of the catalysts used on the mechanism of reactions and quantitative characteristics of the destruction process is observed