Research on a New Type Immobilized ZnO Photocatalytic Membrane Reactor
新型固定式ZnO光催化膜反应器的研究

Porous membrane was sintered with the assembly of ZnO nanorods produced by RF plasma,and a new photo-catalytic membrane reactor established using the produced porous membrane.The membrane sintered from 400℃ to 800℃ show that the size of its pores decreases with the increase of sintering temperature.The membrane sintered at 600℃ shows better porous structure.The photocatalytic degradation of methylene blue(MB) in aqueous solution was examined by traditional photocatalytic suspension reactor and newly built membrane reactor.The photocatalytic reaction rate increases with the increase of the ZnO,and reaches the maxima when the amount of ZnO is 0.05 g corresponding to 100 mL 20 mg/L MB solution.The reaction rate in the membrane reactor increases with the increase of dosage of the solution.The new membrane reactor shows great increase in supply of oxygen for photocatalytic reaction.