Abstract: Flower-like iron alkoxide was synthesized by a solvothermal method under nitrogen(N2) flow,and porous flower-like α-ferric oxide(α-Fe2O3) particles were obtained with a subsequent heat treatment at 500℃ in air.The products were characterized and analyzed.The degradation experiment on methyl orange was also carried out.The results shown that the α-Fe2O3 had a large specific surface area of 66.92m2/g.And it was weak ferromagnetic.The saturation magnetization value(Ms),remanence value(Ms) and coercivity value(Hc) were 2.11emu/g,0.55emu/g and 210.91Oe respectively.When the concentration of α-Fe2O3 microspheres was 0.5g/L and methyl orange solution was 10mg/L,it had an excellent photocatalytic rate of methyl orange,namely 60.05% after ultraviolet radiation for 3h.It can be collected simply by a magnetite and the degradation rate of methyl orange remained 50.85% after 6 cycles.
刘攀, 刘继广, 王锐. 多孔花状α-Fe2O3的制备、表征及光催化性能研究[J]. 化工新型材料, 2019, 47(9): 161-165.
Liu Pan, Liu Jiguang, Wang Rui. Preparation,characterization and photocatalysis of porous flower-like α-Fe2O3. New Chemical Materials, 2019, 47(9): 161-165.
[1] Macwan D P,Dave P N,Chaturvedi S.A review on nano-TiO2,sol-gel type syntheses and its applications[J].Journal of Materials Science,2011,46(11):3669-3686. [2] 陈友存,张凯,赵英国.自组装α-Fe2O3亚微米球的制备及其光催化性质[J].无机化学学报,2009,25(11):2003-2009. [3] 杜庆波.α-Fe2O3微球的合成、表征及光催化性能研究[J].化工新型材料,2016,44(12):132-133. [4] Wang B,Chen J S,Wu H B,et al.Quasiemulsion-templated formation of α-Fe2O3 hollow spheres with enhanced lithium storage properties[J].Journal of the American Chemical Society,2011,133(43):17146-17148. [5] 谢娟,李美霞,郝勇静,等.棒状α-Fe2O3/ZnO复合物的制备及其光催化性能[J].化工新型材料,2016,44(4):140-142. [6] Chen J,Xu L,Li W,et al.α-Fe2O3 nanotubes in gas sensor and lithium-ion battery applications[J].Advanced Materials,2005,17(5):582-586. [7] Reddy M V,Yu T,Sow C H,et al.α-Fe2O3 nanoflakes as an anode material for Li-ion batteries[J].Advanced Functional Materials,2007,17(15):2792-2799. [8] Li S,Zhang H,Wu J,et al.Shape-control fabrication and characterization of the airplane-like FeO(OH) and Fe2O3 nanostructures[J].Crystal Growth & Design,2007,6(2):351-353. [9] 谢小莉,杨合情,焦华,等.α-Fe2O3纳米立方体和纳米棒组装空心微球的可控合成及其磁学性能[J].中国科学(化学),2008,38(7):595-606. [10] Lin D,Deng B,Sassman S A,et al.Magnetic field assisted growth of highly dense α-Fe2O3 single crystal nanosheets and their application in water treatment[J].RSC Advances,2014,4(36):18621-18626. [11] Wei Z,Xing R,Zhang X,et al.Facile template-free fabrication of hollow nestlike α-Fe2O3 nanostructures for water treatment[J].Acs Applied Materials & Interfaces,2013,5(3):598-604. [12] Tong G,Guan J,Zhang Q.Goethite hierarchical nanostructures:glucose-assisted synthesis,chemical conversion into hematite with excellent photocatalytic properties[J].Materials Chemistry & Physics,2011,127(1/2):371-378. [13] 田野,李秀艳,王娇娜,等.La掺杂TiO2电纺纳米纤维的制备及其光催化性能研究[J].化工新型材料,2014,42(1):83-85. [14] Zhong L S,Hu J S,Liang H P,et al.Self-assembled 3D flowerlike iron oxide nanostructures and their application in water treatment[J].Advanced Materials,2006,18(18):2426-2431. [15] Zhao B,Ryan K M,O'Reilly E,et al.Temperature controlled shape evolution of iron oxide nanostructures in HMTA media[J].RSC Advances,2017,7(42):26328-26334. [16] Jiang X,Wang Y,Herricks T,et al.Ethylene glycol-mediated synthesis of metal oxide nanowires[J].Journal of Materials Chemistry,2004,14(4):695-703. [17] Wang D,Yang P,Huang B.Three-dimensional flowerlike iron oxide nanostructures:morphology,composition and metal ion removal capability[J].Materials Research Bulletin,2016,73:56-64. [18] Ma F X,Hu H,Wu H B,et al.Formation of uniform Fe3O4 hollow spheres organized by ultrathin nanosheets and their excellent lithium storage properties[J].Advanced Materials,2015,27(27):4097-4101. [19] Hong Y,Tian C,Jiang B,et al.Facile synthesis of sheet-like ZnO assembly composed of small ZnO particles for highly efficient photocatalysis[J].Journal of Materials Chemistry A,2013,1(18):5700-5708. [20] Shen L,Yu L,Yu X Y,et al.Self-templated formation of uniform NiCo2O4 hollow spheres with complex interior structures for lithium-ion batteries and supercapacitors[J].Angewandte Chemie International Edition,2015,54(6):1868-1872. [21] Yang X,Fu J,Jin C,et al.Formation mechanism of CaTiO3 hollow crystals with different microstructures[J].Journal of the American Chemical Society,2010,132(40):14279-14287.