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二氧化钛纳米管光催化降解水中百草枯

Keywords: 二氧化钛纳米管,百草枯,光催化降解

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Abstract:

二氧化钛纳米管被用于光催化氧化水体中的百草枯,对光催化反应条件、常见Fe3+离子的干扰情况和百草枯光催化降解动力学规律进行了研究。结果表明,浓度为25mg/L的百草枯溶液,在二氧化钛纳米管(TNT)1.0g/L,H2O20.5mL/50mL,pH=5.0的最优光催化氧化条件下,经过30min反应可以被100%从水体中去除,表现出非常高的光催化降解效率;动力学方程拟合表明,百草枯光催化氧化反应符合拟一级动力学规律,动力学方程为ln(C0/C)=1.0267t-0.1282,反应速率常数K为1.0267h-1;双氧水存在时常见的Fe3+能够进一步提高百草枯光催化降解率;该光催化反应体系对低浓度百草枯废水有很好的处理效果,预示着光催化氧化技术适合地表或地下水体中百草枯的去除。

References

[1]  Hsu S. T., Lin W. C., Hsiao W. F., et al. Preparation of methacrylic acid-grafted chitin using cerium (IV) ion and its application in adsorbing paraquat. Journal of Applied Polymer Science, 2013, 127(1): 760-764
[2]  Sorolla M. G., Dalida M. L., Khemthong P., et al. Photocatalytic degradation of paraquat using nano-sized Cu-TiO2/SBA-15 under UV and visible light. Journal of Environmental Sciences,2011,24(6):1125-1132
[3]  Oliveira C., Santos M.S.F., Maldonado-Hódar F.J., et al. Use of pipe deposits from water networks as novel catalysts in paraquat peroxidation. Chemical Engineering Journal, 2011,210:339-349
[4]  Tantriratna P., Wirojanagud W., Neramittagapong S., et al. Optimization for UV-photocatalytic degradation of paraquat over titanium dioxide supported on rice husk silica using Box-Behnken design. Indian Journal of Chemical Technology, 2011, 18(5): 363-371
[5]  Dhaouadi A., Adhoum N.Heterogeneous catalytic wet peroxide oxidation of paraquat in the presence of modified activated carbon. Applied Catalysis B: Environmental, 2010, 97(1-2):227-235
[6]  Dhaouadi A., Adhoum N.Degradation of paraquat herbicide by electrochemical advanced oxidation methods. Journal of Electroanalytical Chemistry, 2009, 637(1-2): 33-42
[7]  Florencio M. H., Pires E., Castro A. L., et al. Photodegradation of Diquat and Paraquat in aqueous solutions by titanium dioxide: Evolution of degradation reactions and characterisation of intermediates. Chemosphere, 2004,55(3):345-355
[8]  Tennakone K., Kottegoda I .R. M.Photocatalytic mineralization of paraquat dissolved in water by TiO2 supported on polythene and polypropylene films. Journal of Photochemistry and Photobiology A:Chemistry, 1996,93(1):79-81
[9]  Tang Z. R., Zhang Y., Xu Y. J.Tuning the optical property and photocatalytic performance of titanate nanotube toward selective oxidation of alcohols under ambient conditions. ACS Applied Materials & Interfaces, 2011, 4(3): 1512-1520
[10]  Wong C. L., Tan Y. N., Mohamed A. R.A review on the formation of titania nanotube photocatalysts by hydrothermal treatment. Journal of Environmental Management, 2011,92(7): 1669-1680
[11]  Hu K. S., Xiao X., Cao X. F., et al. Adsorptive separation and photocatalytic degradation of methylene blue dye on titanate nanotube powders prepared by hydrothermal process using metal Ti particles as a precursor. Journal of Hazardous Materials, 2011, 192(2): 514-520
[12]  Wadhwa S., Hamilton J. J., Dunlop P. S., et al. Effect of post-annealing on the photocatalytic activity of hydrothermally synthesised titania nanotubes. Journal of Advanced Oxidation Technologies, 2011, 14(1):147-157
[13]  Roberts T. R., Dyson J. S., Lane M. C. G. Deactivation of the biological activity of paraquat in the soil environment: A review of long-term environmental fate. Journal of Agricultural and Food Chemistry, 2002, 50(13): 3623-3631
[14]  Zhou M. H., Yu J. G., Cheng B.Effects of Fe-doping on the photocatalytic activity of mesoporous TiO2 powders prepared by an ultrasonic method. Journal of Hazardous Materials,2006,137(3):1838-1847
[15]  曾昭华. 农业生态与土壤环境中铁元素的关系. 环境监测管理与技术,2001,13(4): 18-20Zheng Z. H.Relationship between agricultural ecology and element fe in soil. The Administration and Technique of Environmental Monitoring, 2001,13(4):18-20(in Chinese)
[16]  潘晓峰, 阎百兴, 王莉霞. 三江平原河水中铁的形态研究. 环境科学,2010,31(9): 2042-2047Pan X. F., Yan B. X., Wang L. X.Research on iron in Marshy rivers of the Sanjiang Plain. Environmental Science,2010,31(9): 2042-2047(in Chinese)
[17]  Leite M. P., dos Reis L.G. T., Robaina N. F., et al. Adsorption of paraquat from aqueous medium by Amberlite XAD-2 and XAD-4 resins using dodecylsulfate as counter ion. Chemical Engineering Journal, 2013, 215:691-698
[18]  Wang X., Zhao H. M., Quan X., et al. Visible light photoelectrocatalysis with salicylic acid-modified TiO2 nanotube array electrode for p-nitrophenol degradation. Journal of Hazardous Materials, 2009,166(1):547-552
[19]  郑文.太阳光降解农地土壤中百草枯的研究.广州:华南热带农业大学硕士学位论文,2007 Zhang W. In the research on the solar radiation photodegradation of paraquat in soil.Guangzhou:Master\'s Degree Thesis of South China University of Tropical Agriculture, 2007
[20]  Ou H. H., Lo S. L.Review of titania nanotubes synthesized via the hydrothermal treatment: Fabrication, modification, and application. Separation and Purification Technology,2007,58(1):179-191
[21]  Cantavenera M. J., Catanzaro I., Loddo V., et al. Photocatalytic degradation of paraquat and genotoxicity of its intermediate products. Journal of Photochemistry and Photobiology A-Chemistry, 2007, 185(2-3): 277-282
[22]  滕洪辉, 吴新兴, 刘潘,等. 不同态二氧化钛处理模拟印染废水的研究. 环境工程学报,2010,4(2):327-330Teng H. H., Wu X. X., Liu P., et al. Study on simulated dyeing wastewater treatment by different forms of TiO2. Chinese Journal of Environmental Engineering, 2010,4(2): 327-330(in Chinese)
[23]  滕洪辉, 李桂超, 任百祥,等.纳米TiO2光催化氧化处理糠醛废水的研究.工业水处理 2009,224(10):48-51Teng H. H., Li G. C., Ren B. X., et al. Photocatalytic degradation of furfural wastewater with nano-TiO2. Industrial Water Treatment, 2009,224(10):48-51(in Chinese)
[24]  Bedos C., Cellier P., Calvet R., et al. Mass transfer of pesticides into the atmosphere by volatilization from soils and plants: Overview. Agronomie,2002,22(1):21-33
[25]  Jovtchev G., Gateva S., Stergios M., et al. Cytotoxic and genotoxic effects of paraquat in hordeum vulgare and human lymphocytes in vitro. Environmental Toxicology, 2010, 25(3): 294-303
[26]  Noicharoen D., Parkpian P., Shipin O. V., et al. Effect of salinity on adsorption and desorption of paraquat in Pak Phanang river sediment, Thailand. Journal of Environmental Science and Health Part a-Toxic/Hazardous Substances & Environmental Engineering, 2011, 47(12): 1897-1908
[27]  Iglesias A., Lopez R., Gondar D., et al. Adsorption of paraquat on goethite and humic acid-coated goethite. Journal of Hazardous Materials,2010,183(1-3):664-668
[28]  Nanseu-Njiki C. P., Dedzo G. K., Ngameni E.Study of the removal of paraquat from aqueous solution by biosorption onto Ayous (Triplochiton schleroxylon) sawdust. Journal of Hazardous Materials, 2010, 179(1-3):63-71

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