研究500℃下煅烧不同时间对溶胶-凝胶法制备的TiO2-Al2O3复合材料的吸附性能和光催化性能的影响.经表征分析可知,所制备材料由锐钛矿型TiO2和非晶态Al2O3组成.随着煅烧时间的增加,样品的晶粒逐渐长大,但煅烧时间对样品颗粒的表面形貌影响不大,其表面形貌较为平坦.煅烧2.5h或3h所制得样品的比表面积较大.复合材料对甲基橙的吸附率在5％～8％之间,随煅烧时间的变化不大.经500℃煅烧3h制得的TiO2-Al2O3复合材料的光催化活性最佳,经紫外光照射90 min后可使甲基橙溶液总脱色率达95.2％.
参考文献
| [1] | MENG Jun-ping,LIANG Jin-sheng,LIANG Guang-chuan,YU Jun-mei,PAN Yan-fen.Effects of tourmaline on microstructures and photocatalytic activity of TiO2/SiO2 composite powders[J].中国有色金属学会会刊（英文版）,2006(z1):547-550. |
| [2] | Demeestere K;Dewulf J;Van Langenhove H .Heterogeneous photocatalysis as an advanced oxidation process for the abatement of chlorinated, monocyclic aromatic and sulfurous volatile organic compounds in air: State of the art[J].Critical reviews in environmental science and technology,2007(6):489-538. |
| [3] | Umar Ibrahim Gaya;Abdul Halim Abdullah .Heterogeneous photocatalytic degradation of organic contaminants over titanium dioxide: A review of fundamentals, progress and problems[J].Journal of photochemistry and photobiology, C. Photochemistry reviews,2008(1):1-12. |
| [4] | Mikolaj Stodolny;Marek Laniecki .Synthesis and characterization of mesoporous Ta2O5-TiO2 photocatalysts for water splitting[J].Catalysis Today,2009(3/4):314-319. |
| [5] | Tong-xu Liu;Xiang-zhong Li;Fang-bai Li .Enhanced photocatalytic activity of Ce~(3+)-TiO2 hydrosols in aqueous and gaseous phases[J].Chemical engineering journal,2010(2/3):475-482. |
| [6] | Ki Chang Song;Sotiris E. Pratsinis .Synthesis of bimodally porous titania powders by hydrolysis of titanium tetraisopropoxide[J].Journal of Materials Research,2000(11):2322-2329. |
| [7] | Guillermo Calleja;David P. Serrano;Raul Sanz .Mesostructured SiO2-doped TiO2 with enhanced thermal stability prepared by a soft-templating sol-gel route[J].Microporous and mesoporous materials: The offical journal of the International Zeolite Association,2008(1/3):429-440. |
| [8] | Gulsen Gurboga;Huseyin Tel;Yuksel Altas .Sorption studies of cesium on TiO_2-SiO_2 mixed gel spheres[J].Separation and Purification Technology,2006(3):96-104. |
| [9] | 曹铃林,袁坚,陈铭夏,上官文峰.热处理温度对TiO2-WO3复合光催化材料储能特性的影响[J].无机材料学报,2009(03):448-452. |
| [10] | Yinhua Jiang;Yueming Sun;Hui Liu .Solar photocatalytic decolorization of C.I.Basic Blue 41 in an aqueous suspension of TiO2-ZnO[J].Dyes and Pigments,2008(1):77-83. |
| [11] | Ye F X;Ohmori A .The photocatalytic activity and photo-absorption of plasma sprayed TiO2-Fe3O4 binary oxide coatings[J].Surface and Coatings Technology,2002,160(01):62-67. |
| [12] | N.Venkatachalam;M.Palanichamy;Banumathi Arabindoo .Alkaline earth metal doped nanoporous TiO2 for enhanced photocatalytic mineralisation of bisphenol-A[J].Catalysis Communications,2007(7):1088-1093. |
| [13] | Venkatachalam N;Palanichamy M;Murugesan V .Sol-gel preparation and characterization of alkaline earth metal doped nano TiO2: Efficient photocatalytic degradation of 4-chlorophenol[J].Journal of molecular catalysis, A. Chemical,2007(1/2):177-185. |
| [14] | Qiang Li;Haijia Su;Tianwei Tan .Synthesis of ion-imprinted chitosan-TiO2 adsorbent and its multi-functional performances[J].Biochemical Engineering Journal,2008(2):212-218. |
| [15] | 李莉娟,孙凤久,楼丹花,王闯.纳米氧化铝的晶型及粒度对其红外光谱的影响[J].功能材料,2007(03):479-481,484. |
| [16] | Yonga M J Q;Wong A S W;Ho G W .Mesophase ordering and macroscopic morphology structuring of mesoporous TiO2 film[J].Materials Chemistry and Physics,2009,116(2-3):563-568. |
| [17] | Yunchang Xin;Kaifu Huo;Tao Hu;Guoyi Tang;Paul K. Chu .Mechanical properties of Al_2O_3/Al bi-layer coated AZ91 magnesium alloy[J].Thin Solid Films: An International Journal on the Science and Technology of Thin and Thick Films,2009(17):5357-5360. |
| [18] | Yuehua Xu;Bo Lei;Laiqiu Guo;Wuyi Zhou;Youqin Liu .Preparation, Characterization And Photocatalytic Activity Of Manganese Doped Tio_2 Immobilized On Silica Gel[J].Journal of hazardous materials,2008(1):78-82. |
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