Synthesis of Carbon Nanotubes/FeS Fenton-like Catalyst and Its Catalytic Properties

Chemical vapor deposition(CVD) was used to fabricate as-prepared multi-walled carbon nanotubes(CNTs).CNTs/FeS Fenton-like catalyst was synthesized by oxidation-reduction-vulcanization method.Furthermore,The catalyst was characterized by TEM,XRD,TG and other material analysis techniques.And then,the catalyst was used for the removal of ciprofloxacin from aqueous solution.The catalytic activity and catalytic mechanism were studied with concentration of H 2 O 2,dosage of catalyst,concentration of ciprofloxacin and pH.The results show that there are an optimal H 2 O 2 concentration(20 mmol / L) and dosage of catalyst(10 mg) in CNTs/FeS Fenton-like catalytic reaction.The first order kinetics equation is more appropriate to describe the process of catalytic reaction.And the catalytic reaction has better suitability than previsous study in wide range of pH values(pH = 3—8).Meanwhile,CNTs / FeS Fenton-like catalyst has good regenerated properties.