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Study on the Degradation of Chlortetracycline Hydrochloride in Mariculture Wastewater by Zn 0.75 Mn 0.75 Fe 1.5 O 4 /ZnFe 2 O 4 /ZnO Photocatalyst
Water, Air, & Soil Pollution ( IF 2.9 ) Pub Date : 2021-01-04 , DOI: 10.1007/s11270-020-04980-6
Jiayuan Fu , Xiaocai Yu , Zejun Li , Yongxia Zhang , Wanting Zhu , Jinghua Liu

The method of preparing Zn0.75Mn0.75Fe1.5O4/ZnFe2O4/ZnO photocatalyst was the precipitation grinding. This photocatalyst was characterized by UV-Vis, PL, EDS, SEM, and XRD. The results indicated the Zn0.75Mn0.75Fe1.5O4/ZnFe2O4/ZnO photocatalyst was highly active under the visible light. The photocatalytic degradation efficiency of chlortetracycline hydrochloride was analyzed in mariculture wastewater by various experimental parameters, namely calcination temperature, dosage of Zn0.75Mn0.75Fe1.5O4/ZnFe2O4/ZnO, Zn2+/Fe3+/Mn2+ molar ratio, H2O2 mass concentration, chlortetracycline hydrochloride initial concentration, and illumination time. The degradation of chlortetracycline hydrochloride in mariculture wastewater was optimized by orthogonal experiments. When the H2O2 mass concentration was 0.3 g/L, calcination temperature was 500 °C, Zn2+/Fe3+/Mn2+ molar ratio was 10:1:4, dosage of Zn0.75Mn0.75Fe1.5O4/ZnFe2O4/ZnO was 0.7 g/L, illumination time was 4.0 h, chlortetracycline hydrochloride initial concentration was 0.01 g/L, and the degradation rate of chlortetracycline hydrochloride reached 73.04% by Zn0.75Mn0.75Fe1.5O4/ZnFe2O4/ZnO photocatalyst. The degradation rate of chlortetracycline hydrochloride was 52.86% by ZnFe2O4/ZnO photocatalyst. The results indicated that the Zn0.75Mn0.75Fe1.5O4/ZnFe2O4/ZnO photocatalyst obviously enhanced the degradation rate of chlortetracycline hydrochloride, compared with pure ZnO and ZnFe2O4/ZnO photocatalyst.



中文翻译:

Zn 0.75 Mn 0.75 Fe 1.5 O 4 / ZnFe 2 O 4 / ZnO光催化剂降解海水养殖废水中的盐酸四环素的研究

沉淀法是制备Zn 0.75 Mn 0.75 Fe 1.5 O 4 / ZnFe 2 O 4 / ZnO光催化剂的方法。通过UV-Vis,PL,EDS,SEM和XRD对这种光催化剂进行了表征。结果表明,Zn 0.75 Mn 0.75 Fe 1.5 O 4 / ZnFe 2 O 4 / ZnO光催化剂在可见光下具有很高的活性。通过煅烧温度,锌0.750.75的各种实验参数分析了海水中盐酸金霉素的光催化降解效率。Fe 1.5 O 4 / ZnFe 2 O 4 / ZnO,Zn 2+ / Fe 3+ / Mn 2+摩尔比,H 2 O 2质量浓度,盐酸金霉素的初始浓度和照射时间。通过正交试验对海水养殖废水中盐酸金霉素的降解进行了优化。当H 2 O 2质量浓度为0.3 g / L,煅烧温度为500°C,Zn 2+ / Fe 3+ / Mn 2+摩尔比为10:1:4时,Zn 0.75 Mn 0.75 Fe 1.5的剂量O 4 / ZnFe 2 O 4 / ZnO为0.7 g / L,光照时间为4.0 h,盐酸金霉素的初始浓度为0.01 g / L,Zn 0.75 Mn 0.75 Fe 1.5 O 4对盐酸金霉素的降解率达到73.04%。/ ZnFe 2 O 4 / ZnO光催化剂。ZnFe 2 O 4 / ZnO光催化剂对盐酸金霉素的降解率为52.86%。结果表明,Zn 0.75 Mn 0.75 Fe 1.5 O 4 / ZnFe 2 O 4与纯ZnO和ZnFe 2 O 4 / ZnO光催化剂相比,/ ZnO光催化剂显着提高了盐酸金霉素的降解率。

更新日期:2021-01-04
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