Preparation of Zinc Ferrite and Study on Its Catalytic Degradation of PET Plastic Properties
Innovation in catalyst design is critical for polyethylene terephthalate(PET)recycling.In this study,Fe2(SO4)3 and ZnSO4·7H2O were used as raw materials,and a zinc ferrite catalyst was prepared by hydrothermal co-precipitation method,which was used to degrade PET.Single factor experiments and orthogonal experiments were designed to explore the impact of catalysts obtained by different preparation processes on the degradation performance.The results show that at pH=11,the hydrothermal reaction time is 11 h,and the temperature is 150 ℃,the catalyst has the best catalytic degradation effect,and the maximum yield of the monomer diethylene glycol terephthalate(BHET)is 75.13%.