In order to solve the problem that nanometer photocatalytic materials were difficult to be recycled after use,magnetic ZnO/CoFe2O4 composites were prepared by low temperature calcination method.The materials were characterized by scanning electron microscopy,X-ray diffraction,infrared and UV-Visible diffuse reflection etc.The effects of different composite ratios of ZnO and CoFe2O4 on the photocatalytic activity of the materials were investigated.The results showed that the material had the best photocatalytic activity when the mass ratio of ZnO to CoFe2O4 was 12∶1.Its photocatalytic degradation activity for methyl orange was better than that of commercial P25 under the irradiation of 500W xenon lamp.Photocatalytic capture experiments indicated that ·OH was the most dominant active species in the degradation process.The material still had high photocatalytic activity after 5 repeated uses,and was easy to be separated and recycled under the action of an external magnetic field.
[1] 邹学军,董玉瑛,孙红杰,等.F/Ce掺杂Bi2WO6可见光光催化氧化甲基橙[J].水资源与水工程学报,2016,27(1):54-58.
[2] 张晓栋,常薇,郑丹丹,等.不同糠醇添加量对TiO2/SiO2结构及其光催化性能的影响[J].西安工程大学学报,2019,33(5):499-503.
[3] De O P L,Maroues S I,Pereira Z L,et al.Preparation of magnetic photocatalysts from TiO2,activated carbon and iron nitrate for environmental remediation[J].Journal of Photochemistry and Photobiology A:Chemistry,2019,382:111907.
[4] 孙俭,郭永成,肖雅婷,等.光催化氧化催化剂载体的研究进展[J].石油化工,2021,50(1):88-93.
[5] 马佳麟,王恩革,张雪洁,等.光催化氧化在难降解废水处理中的应用进展[J].山东化工,2021,50(8):266-268.
[6] 史丽珠,毛星舟,王首祎,等.光催化氧化脱硝催化剂研究进展[J].应用化工,2022,51(8):2367-2372.
[7] 王雯雯,李剑,杨丽娜.金属化合物/TiO2异质结光催化氧化催化剂研究进展[J].化工新型材料,2020,48(2):10-14.
[8] Soleimani F,Nezamzadeh-ejhieh A.Study of the photocatalytic activity of CdS-ZnS nano-composite in the photodegradation of rifampin in aqueous solution[J].Journal of Materials Research and Technology,2020,9(6):16237-16251.
[9] 刘晓燕,冯绍桐,马川,等.纳米结构ZnO晶体合成方法的研究进展[J].当代化工,2021,50(7):1671-1675.
[10] Onsori S,Alipour E.A theoretical investigation on the adsorption of platinol drug on a ZnO nanocluster:solvent and density functional effect[J].Journal of Molecular Liquids,2018,256:558-564.
[11] Güell F,Martínez-alanis P R,Khachadorian S,et al.Spatially controlled growth of highly crystalline ZnO nanowires by an inkjet-printing catalyst-free method[J].Materials Research Express,2016,3(2):025010.
[12] Mokhtari S,Safa S,Khayatian A,et al.Effects of chromium dopant on ultraviolet photoresponsivity of ZnO nanorods[J].Journal of Electronic Materials,2017,46(7):4250-4255.
[13] 陈美玲,刘少敏,张建树,等.ZnO基复合光催化剂的研究进展[J].山东工业技术,2019(4):33.
[14] 李酽,宋双,连晓雪.MoS2/ZnO纳米复合材料的光学和光催化性能[J].化工进展,2021,40(7):3870-3877.
[15] 宋子健,冉薇,魏凤玉.CoFe2O4/rGO磁性复合材料的制备及吸附性能[J].合肥工业大学学报(自然科学版),2018,41(1):102-105.
[16] Ferdosi E,Bahiraei H,Ghanbari D.Investigation the photocatalytic activity of CoFe2O4/ZnO and CoFe2O4/ZnO/Ag nanocomposites for purification of dye pollutants[J].Separation and Purification Technology,2019,211:35-39.
[17] Ye L J,Yan C,Jiang Y J,et al.Preparation of hollow cone-like ZnO/CoFe2O4 heterostructures and their photocatalytic properties[J].Micro & Nano Letters,2015,10(4):202-205.
[18] Miah M,Mondal T K,Ghosh A,et al.Study of highly porous ZnO nanospheres embedded reduced graphene oxide for high performance supercapacitor application[J].Electrochimica Acta,2020,354:136675.
基金资助
国家自然科学基金项目(21703165);陕西省科技计划项目(2021KW-12);西安市科技计划项目(23GXFW0019);碑林区科技计划项目(GX2213);柯桥西纺产学研协同创新项目(19KQZD07)
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