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电气石对纳米二氧化钛结构及光催化性能的影响

DOI: 10.7521/j.issn.0454-5648.2014.07.18

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Abstract:

以电气石粉为载体,TiCl4为前驱体,采用水解沉淀法在电气石表面负载纳米TiO2,制备纳米TiO2/电气石复合材料。通过X射线衍射仪、场发射扫描电子显微镜、能谱仪及光电子能谱仪对样品进行表征,以甲醛为目标降解物,考察电气石对纳米TiO2光催化性能的影响。结果表明纳米TiO2负载在电气石表面后,其结构和性能发生了明显变化。经550℃煅烧,锐钛矿型的纳米TiO2晶粒由15.6nm降为9.3nm。TiO2/电气石复合材料中的O1s、Ti2p1/2和Ti2p3/2结合能比纯TiO2分别提高了1.35eV、1.32eV和1.27eV,而O1s和Si2p的结合能比电气石中分别降低了1.80eV和0.13eV。TiO2和TiO2/电气石复合材料在紫外灯下照射300min,甲醛去除率分别为73.3%和91.6%。

References

[1]   FUJISHIMA A, HOADA K. Electrochemical photolysis of water at a semiconductor electrode[J]. Nature, 1972, 238: 37-40.
[2]   THOMPSON T L, YATES J T. Surface science studies of the photoactivation of TiO2: new photochemical processes[J]. Chem Rev, 2006, 106(10): 4428-4435.
[3]   刘子传,郑经堂,赵东风,等.金属离子掺杂改性纳米TiO2的能带结构及其光催化性能[J].硅酸盐学报,2013, 41(3): 402-408.
[4]  LIU Zichuan, ZHENG Jingtang, ZHAO Dongfeng, et al. J Chin Ceram Soc, 2013, 41(3): 402-408.
[5]   KAZUYA N, AKIRA F. TiO2 photocatalysis: Design and applications[J]. J Photochem Photobiology C: Photochem Rev, 2012, 13:169-189.
[6]   CAO Y Q, TU Y L, ZHANG P, et al. An enhanced visible-light photocatalytic activity of TiO2 by nitrogen and nickel-chlorine modification [J]. Sep Purif Technol, 2013, 104: 256-262.
[7]   LEGRINI O, OLIVEROS E, BRAUN A M. Photochemical processes for water treatment [J]. Chem Rev, 1993, 93: 671-698.
[8]   莫尊理,孙豫,郭瑞斌,等.电气石的性能及应用研究进展[J].硅酸盐通报,2011, 30(4): 822-826.
[9]  MO Zunli, SUN Yu, GUO Ruibin, et al. Bull Chin Ceram Soc (in Chinese) , 2011, 30(4): 822-826.
[10]   TATIAN S,YURY S,VLADIMIR B. Growth of tourmaline single crystals containing transition metal elements in hydrothermal solutions[J]. J Cryst Growth 2010, 318:904-907.
[11]   RENNTARO S Z, YOSHIHIDE O W. Diversity of potassium-bearing tourmalines in diamondiferous Kokchetav UHP metamorphic rocks: A geochemical recorder from peak to retrograde metamorphic stages[J]. J Asian Earth Sci, 2013, 63: 39-55.
[12]   HE Z Q, WANG C, WANG H Y, et al. Increasing the catalytic activities of iodine doped titanium dioxide by modifying with tin dioxide for the photo degradation of 2-chlorophenol under visible light irradiation[J]. J Hazard Mater, 2011, 189: 595-603.
[13]   KEXIN L, TONG C, LIU S Y, et al. Synthesis of mesoporous graphene and tourmaline co-doped titania composites and their photocatalytic activity towards organic pollutant degradation and eutrophic water treatment[J]. Catal Commun, 2012, 28: 196-201.
[14]   刘来宝,张云升,何登良.电气石/TiO2复合体系光催化降解苯酚溶液的反应动力学 [J].功能材料,2012, 43(4): 512-515.
[15]  LIU Laibao, ZHANG Yunsheng, HE Dengliang. J Funct Mater (in Chinese), 2012, 43(4): 512-515.
[16]   MENG Junping, LIANG Jinsheng, DING Yan. Effects of mineral tourmaline particles on photocatalytic activities of RE/TiO2 composite thin films [J]. J Rare Earth, 2004, 22(suppl2): 101-105.
[17]   康俊龙,姚兰芳,杨松林,等.Ce掺杂TiO2纳米复合的制备及光催化活性 [J].人工晶体学报,2013, 42(4):671-676.
[18]  KANG Junlong, YAO Lanfang, YANG Songlin, et al. J Synth Cryst (in Chinese), 2013, 42(4):671-676.
[19]   GAO R Q, HOU X M. Preparation and photo-catalytic activity of TiO2-coated medical stonebased porous ceramics[J]. J Univ Sci Technol Beijing, 2013, 20(6): 593-597.
[20]   宋其圣,董岩,李大枝,等.无机化学教程[M].济南:山东大学出版社,2008: 133-437.
[21]  SONG Qisheng, DONG Yan, LI Dazhi, et al. Inorganic chemistry course (in Chinese). Jinan: Shandong University Press, 2008: 133-437.
[22]   王利剑.纳米TiO2/硅藻土复合材料的制备及应用[D].北京:中国矿业大学,2006.
[23]  WANG Lijian. Preparation and application of nano-TiO2/diatomite composite material Beijing.China University of Mining and Technology (in Chinese, dissertation) Beijing:China, 2006.
[24]   郑水林,高如琴,王健东,等.TiO2/硅藻土基多孔陶瓷复合材料的制备及降解甲醛性能[J].硅酸盐学报,2008, 36(11): 1633-1637.
[25]  ZHENG Shuilin, GAO Ruqin, WANG Jiandong, et al. J Chin Ceram Soc, 2008, 36(11): 1633-1637.
[26]   Ameen M M, Raupp G, Regory B. Reversible catalyst deactivation in the photocatalytic oxidation of diluteo-xylene in air[J]. J Catal, 2004, 189(1): 112-122.
[27]  

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