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纳米Au/TiO2复合物光催化降解亚甲基蓝

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倪冰楠, 陆婷, 刘心娟, 孙卓. 纳米Au/TiO2复合物光催化降解亚甲基蓝[J]. 环境工程学报, 2014, 8(12): 5372-5376.
引用本文: 倪冰楠, 陆婷, 刘心娟, 孙卓. 纳米Au/TiO2复合物光催化降解亚甲基蓝[J]. 环境工程学报, 2014, 8(12): 5372-5376.
shu
Ni Bingnan, Lu Ting, Liu Xinjuan, Sun Zhuo. UV photocatalytic reduction of methylene blue by nano Au/TiO2 composites[J]. Chinese Journal of Environmental Engineering, 2014, 8(12): 5372-5376.
Citation: Ni Bingnan, Lu Ting, Liu Xinjuan, Sun Zhuo. UV photocatalytic reduction of methylene blue by nano Au/TiO2 composites[J]. Chinese Journal of Environmental Engineering, 2014, 8(12): 5372-5376.
shu

纳米Au/TiO2复合物光催化降解亚甲基蓝

  • 1.

    华东师范大学纳光电集成和先进装备教育部工程研究中心, 上海 200062

  • 基金项目:

  • 中图分类号: X703

UV photocatalytic reduction of methylene blue by nano Au/TiO2 composites

  • 1.

    Engineering Research Center for Nanophotonics & Advanced Instrument, Ministry of Education, East China Normal University, Shanghai 200062, China

  • Fund Project:

  • 摘要: 以纳米金棒为掺杂物,采用溶胶-凝胶法制备了纳米Au/TiO2复合材料,在紫外光下对亚甲基蓝溶液进行光催化降解。结果表明,在紫外光下,Au/TiO2复合物对亚甲基蓝的脱色率最高可达99.6%,是纯TiO2 的1.3倍。这主要归结于掺杂纳米尺寸的Au可增加TiO2对光的吸收以及减少电子-空穴对的复合,由此提高其光催化能力。
    Abstract: Nano Au/TiO2 composites were synthesized by sol-gel method with Au nanorods. Methyl blue solution was photocatalytically reduced using the prepared composites. The results showed that the photocatalytic efficiency of Au/TiO2 reached 99.6%, which was 1.3 times that of pure TiO2, under UV light irradiation. The enhanced photocatalysis was attributed to that the addition of Au at the nanoscale can improve the photocatalytic ability of TiO2 with increased light absorption intensity and reduction of charge recombination rate.
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  • [1] Wang H., Li S., Zhang L., et al. Surface decoration of Bi2WO6 superstructures with Bi2O3 nanoparticles:An efficient method to improve visible-light-driven photocatalytic activity. Cryst. Eng. Commun.,2013, 44(15): 9011-9019
    [2] Tamuly C., Hazarika M., Das M. R., et al. Photocatalytic activity of Au nanoparticles synthesized by piper pedicellatum C. DC fruits. J. Nanosci. Nanotechnol. Lett.,2013, 5(7):758-764
    [3] Arbuj S. S., Mulik U. P., Amalnerkar D. P. Synthesis of Ta2O5/TiO2 coupled semiconductor oxide nanocomposites with high photocatalytic activity. Nanosci. Nanotechnol. Lett.,2013, 5(9):968-973
    [4] Shen Q., Zhang W., Hao Z., et al. A study on the synergistic adsorptive and photocatalyticactivities of TiO2-xN<i>x/Beta composite catalysts under visible light irradiation. Chem. Eng. J., 2010, 165(1): 301-309
    [5] Xiong Z., Zhao X. Nitrogen-doped titanate-anatase core-shell nanobelts with exposed{101} anatase facets and enhanced visible light photocatalytic activity. J. Am. Chem. Soc.,2012, 134(13): 5754-5757
    [6] Zhang W., Zou L., Wang L., et al. A novel charge-driven self-assembly method to prepare visible-light sensitive TiO2/activated carbon composites for dissolved organic compound removal. Chem. Eng. J.,2011, 168 (1): 485-492
    [7] Liu X. J., Pan L. K., Lu T. Sol-gel synthesis of Au/N-TiO2 composite for photocatalytic reduction of Cr(VI). RSC Adv.,2012, 9(2): 3823-3827
    [8] Luo Z., Jiang H., Li D., et al. Improved photocatalytic activity and mechanism of Cu2O/N-TiO2 prepared by a two-step method. RSC Adv., 2014, 34(4): 17797-17804
    [9] Li X. Z., Li F. B. Study of Au/Au3+-TiO2 photocatalysts toward visible photooxidation for water and wastewater treatment. Environ. Sci. & Technol.,2001, 35 (11): 2381-2387
    [10] You X., Chen F., Zhang J., et al. A novel deposition precipitation method for preparation of Ag loaded titanium dioxide. Catal. Lett.,2005, 102(3-4): 247-250
    [11] Uddin M. J., Cesano F., Scarano D., et al. Cotton textile fibres coated by Au/TiO2 films: Synthesis, characterization and self-cleaning properties. J. Photochem. Photobiol. A-Chem., 2008, 199(1): 64-72
    [12] Senthilkumaar S., Porkodi K., Gomathi R., et al. Sol-gel derived silver doped nanocrystalline titania catalysed photodegradation of methylene blue from aqueous solution. Dyes and Pigments, 2006, 29(1-2): 22-30
    [13] Xiong Z., Ma J., Ng W. J., et al. Silver-modified mesoporous TiO2 photocatalyst for water purification. Water Res.,2011, 45(5):2095-2103
    [14] Sun L., Zhao D., Song Z., et al. Gold nanoparticles modified ZnO nanorods with improved photocatalytic activity. J. Colloid Interface Sci.,2011, 363(1):175-181
    [15] Pradhan S., Ghosh D., Chen S. Janus nanostructures based on Au-TiO2 heterodimers and their photocatalytic activity in the oxidation of methanol. ACS Appl. Mat. Interfaces,2009, 1(9): 2060-2065
    [16] Armelao L., Barreca D., Bottaro G., et al. Photocatalytic and antibacterial activity of TiO2 and Au/TiO2 nanosystems. Nanotechnology, 2007, 18 (37): 37-42
    [17] Tada H., Mitsui T., Kiyonaga T., et al. All-solid-state Z-scheme in CdS-Au-TiO2 three-component nanojunction system. Nat. Mater., 2006, 5(10): 782-786
    [18] Gaspera E. Improved thermal stability of Au nanorods by use of photosensitive layered titanates for gas sensing applications. J. Mater. Chem.,2011, 21(34): 13074-13078
    [19] Anandana S., Pugazhenthirana N., Lee G. J., et al. Photocatalytic degradation of ceftiofur sodium using Au loaded Bi2CuO4 nanoparticles. J. Mole. Cata. A: Chem.,2013, 379(15): 112-116
    [20] Arabatzis I. M., Stergiopoulos T., Andreeva D., et al. Characterization and photocatalytic activity of Au/TiO2 thin films for azo-dye degradation. J. Catal., 2003, 220 (1), 127-135
    [21] Wu Y., Liu H., Zhang J., et al. Enhanced photocatalytic activity of nitrogen-doped titania by deposited with gold. J. Phys. Chem. C.,2009, 113(33): 14689-14695
    [22] Subramanian V., Wolf E., Prashant V. Semiconductor-metal composite nanostructures. To what extent do metal nanoparticles improve the photocatalytic activity of TiO2 films? J. Phys. Chem. B.,2001, 105(46): 11439-11446
    [23] Xu J., Ao Y., Fu D., et al. Synthesis of Bi2O3-TiO2 composite film with high-photocatalytic activity under sunlight irradiation. Appl. Surf. Sci., 2008, 255(5): 2365-2369
    [24] Wu J., Wang J., Thomas D. F., et al. Synthesis of F-doped flower-like TiO2 nanostructures with high photoelectrochemical activity. Langmuir, 2008, 24(7): 3503-3509
    [25] Nie C. Y., Liu D., Pan L. K., et al. Enhanced capacitive behavior of carbon aerogels/reduced grapheme oxide composite film for supercapacitors. Solid State Ionics,2013, 247-248: 66-70
    [26] Lu T., Zhang Y. P., Li H. B., et al. Electrochemical behaviors of graphene-ZnO and graphene-SnO2 composite films for supercapacitors. Electrochimica Acta,2010, 55 (13): 4170-4173
    [27] Luo S., Xiao Y., Yang L., et al. Simultaneous detoxification of hexavalent chromium and acid orange 7 by a novel Au/TiO2 heterojunction composite nanotube arrays. Sep. Purif. Technol.,2011, 79(1):85-91
    [28] Tian B. Z., Li C. Z., Gu F., et al. Synergetic effects of nitrogen doping and Au loading on enhancing the visible-light photocatalytic activity of nano-TiO2. Catal. Commun.,2009, 10(6): 925-929
    [29] Yu J., Yue L., Liu S., et al. Hydrothermal preparation and photocatalytic activity of mesoporous Au-TiO2 nanocomposite microspheres. J. Colloid Interface Sci., 2009, 334(1):58-64
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  • 收稿日期:  2014-07-08
  • 刊出日期:  2014-12-03
倪冰楠, 陆婷, 刘心娟, 孙卓. 纳米Au/TiO2复合物光催化降解亚甲基蓝[J]. 环境工程学报, 2014, 8(12): 5372-5376.
引用本文: 倪冰楠, 陆婷, 刘心娟, 孙卓. 纳米Au/TiO2复合物光催化降解亚甲基蓝[J]. 环境工程学报, 2014, 8(12): 5372-5376.
shu
Ni Bingnan, Lu Ting, Liu Xinjuan, Sun Zhuo. UV photocatalytic reduction of methylene blue by nano Au/TiO2 composites[J]. Chinese Journal of Environmental Engineering, 2014, 8(12): 5372-5376.
Citation: Ni Bingnan, Lu Ting, Liu Xinjuan, Sun Zhuo. UV photocatalytic reduction of methylene blue by nano Au/TiO2 composites[J]. Chinese Journal of Environmental Engineering, 2014, 8(12): 5372-5376.
shu

纳米Au/TiO2复合物光催化降解亚甲基蓝

  • 1. 华东师范大学纳光电集成和先进装备教育部工程研究中心, 上海 200062
  • 收稿日期:  2014-07-08
基金项目:

摘要: 以纳米金棒为掺杂物,采用溶胶-凝胶法制备了纳米Au/TiO2复合材料,在紫外光下对亚甲基蓝溶液进行光催化降解。结果表明,在紫外光下,Au/TiO2复合物对亚甲基蓝的脱色率最高可达99.6%,是纯TiO2 的1.3倍。这主要归结于掺杂纳米尺寸的Au可增加TiO2对光的吸收以及减少电子-空穴对的复合,由此提高其光催化能力。

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