CaFe_2O_4光催化材料的制备及改性研究
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摘要
CaFe_2O_4是禁带宽度在1.9eV的p型半导体光催化材料,由于其具有稳定结构和独特催化性能,近几年在水处理方面得到了一定发展。分析了CaFe2O4的结构特点、几种主要制备方法和改性方法,并针对CaFe_2O_4的优缺点,对材料未来的发展趋势进行了展望。
CaFe_2O_4 is a p-type semiconductor photocatalytic material with a band gap of 1.9 eV.Due to its stable structure and unique catalytic properties,it has been developed in water treatment in recent years.The structural characteristics,the main preparation methods and modification methods of CaFe_2O_4,were analyzed.The future development of the materials was prospected from the advantages and disadvantages of CaFe_2O_4.
CaFe_2O_4 is a p-type semiconductor photocatalytic material with a band gap of 1.9 eV.Due to its stable structure and unique catalytic properties,it has been developed in water treatment in recent years.The structural characteristics,the main preparation methods and modification methods of CaFe_2O_4,were analyzed.The future development of the materials was prospected from the advantages and disadvantages of CaFe_2O_4.
引文
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[3] Umar M,Aziz H A.Photocatalytic degradation of organic pollutants in water[J].Zeitschrift Naturforschung Teil A,2013,57(12):919-924.
[4] Dom R,Subasri R,Radha K,et al.Synthesis of solar active nanocrystalline ferrite,MFe2O4(M:Ca,Zn,Mg)photocatalyst by microwave irradiation[J].Solid State Communications,2011,151(6):470-473.
[5] Sutka A,Millers M,Vanags M,et al.Comparison of photocatalytic activity for different co-precipitated spinel ferrites[J].Research on Chemical Intermediates,2015,41(12):9439-9449.
[6] Obata K,Obukuro Y,Matsushima S,et al.Electronic structure of CaFe2O4 with antiferromagnetic spin ordering[J].Journal of the Ceramic Society of Japan,2013,121(9):766-769.
[7] Liu X,Zhang Y,Jia Y,et al.Visible light-responsive carbondecorated p-type semiconductor CaFe2O4,nanorod photocatalyst for efficient remediation of organic pollutants[J].Chinese Journal of Catalysis,2017,38(10):1770-1779.
[8] Vijayaraghavan T,Suriyaraj S P,Selvakumar R,et al.Rapid and efficient visible light photocatalytic dye degradation using AFe2O4(A=Ba,Ca and Sr)complex oxides[J].Materials Science &Engineering B,2016,210:43-50.
[9] 亓峰.碳酸钙/铁酸钙复合催化剂制备及其催化性能[J].无机盐工业,2018,50(3):77-80.
[10] 张晶,苏玉长,谭江,等.共沉淀制备CoFe2O4纳米晶及其表征[J].中南大学学报(自然科学版),2018,49(8):1900-1906.
[11] Sulaiman N H,Ghazali M J,Yunas J,et al.Synthesis and characterization of CaFe2O4nanoparticles via co-precipitation and auto-combustion methods[J].Ceramics International,2018,44:46-50.
[12] Dom R,Kim H G,Borse P H.Photo chemical hydrogen generation from orthorhombic CaFe2O4nanoparticles synthesized by different methods[J].Chemistry Select,2017,2:2556-2564.
[13] Davood G,Masoud S N,Farshad B,et al.Electro-spinning of cellulose acetate nanofibers:microwave synthesize of calcium ferrite nanoparticles and CA-Ag-CaFe2O4nanocomposites[J].J Mater Sci:Mater Electron,2015,26(11):8358-8366.
[14] El-Rafei A M,El-Kalliny A S,Gad-Allah T A.Electrospun magnetically separable calcium ferrite nanofibers for photocatalytic water purification[J].Journal of Magnetism and Magnetic Materials,2017,428:92-98.
[15] 吉可明,孟凡会,李忠.溶液燃烧法制备无机材料研究进展[J].现代化工,2014,34(5):22-25.
[16] Zhang Z,Wang W.Solution combustion synthesis of CaFe2O4nanocrystal as a magnetically separable photocatalyst[J].Materials Letters,2014,133:212-215.
[17] 黄晓君,杜亚洁,张中杰.氧化镓光催化剂的制备及其在水处理应用的研究进展[J].应用化工,2018,47(8):1715-1718.
[18] Borse P H,Kim J Y,Lee J S,et al.Ti-dopant-enhanced photocatalytic activity of a CaFe2O4/MgFe2O4bulk heterojunction under visible-light irradiation[J].Journal of the Korean Physical Society,2012,61(1):73-79.
[19] Sekizawa K,Nonaka T,Arai T,et al.Structural improvement of CaFe2O4by metal doping toward enhanced cathodic photocurrent[J].ACS Applied Materials &Interfaces,2014,6(14):10969-10973.
[20] Luo D,Kang Y.Synthesis and characterization of novel CaFe2O4/Bi2O3,composite photocatalysts[J].Materials Letters,2018,225:17-20.
[21] 蔡漪,郭峰,赵子龙,等.Ag/g-C3N4/ZnO复合光催化剂的制备及光催化性能[J].应用化工,2016,45(11):2029-2033.
[22] Vadivel S,Maruthamani D,Habibi-Yangjeh A,et al.Facile synthesis of novel CaFe2O4/g-C3N4nanocomposites for degradation of methylene blue under visible-light irradiation[J].Journal of Colloid and Interface Science,2016,480:126-136.
[23] Bagherzadeh M,Kaveh R.New magnetically recyclable reduced graphene oxide rGO/MFe2O4(M=Ca,Mg)/Ag3PO4nanocomposites with remarkably enhanced visible-light photocatalytic activity and stability[J].Photochemistry and Photobiology,2018,94(6):1210-1224.
[24] Wan R,Jia C,Zhang W.Preparation and photoelectric properties of p-CaFe2O4/n-WO3,composites[J].Journal of Alloys&Compounds,2012,544:1-5.