Abstract:

Fe(Ⅲ)immobilized collagen fiber(FeCF）catalyst was prepared and its photo-assisted catalytic degradation behaviors to dimethyl phthalate(DMP）were investigated.Compared with FeCF/ H₂O₂/dark, FeCF/UV and H₂O₂/UV reaction system, FeCF/ H₂O₂/UV is more effective for degradation of DMP.It is found that the H₂O₂ concentration and temperature are the main factors that greatly influence the degradation performance of DMP.Under irradiation of UV 254 nm, 100% degradation of DMP can be obtained within 30 min when the dosage of FeCF and H₂O₂ is 1.0 g·L^-1 and 1.0 mmol·L^-1 respectively.In addition, FeCF is effective for the degradation of DMP in the wide pH range of 3.07 to 7.96, and its photo-assisted catalytic degradation activity has no obvious decrease in 5 cycles.So, there is a potential for FeCF to treat DMP pollutant.

摘要：

将Fe(Ⅲ)负载在胶原纤维上制备负载型铁催化剂(FeCF)，并研究了该催化剂对邻苯二甲酸二甲酯（DMP）的非均相Fenton催化降解性能。结果表明：与FeCF/H₂O₂/暗光体系、FeCF/UV体系和H₂O₂/UV体系相比，FeCF/H₂O₂/UV体系对DMP的降解率明显提高。H₂O₂