水热合成时间对纳米WO₃光催化性能的影响
Influence of Hydrothermal Duration on Photoctalytic Property of Nano WO₃

DOI: 10.12677/HJCET.2016.64011, PP. 85-90

Keywords: 水热时间，纳米WO₃，光催化性能，亚甲基蓝
Hydrothermal Duration, Nano WO₃, Photocatalytic Activity, Methylene Blue

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Abstract:

采用水热法，通过控制反应时间合成了单斜相的纳米WO₃粉体。使用X射线粉末衍射仪对产物的物相结构进行表征，并通过紫外–可见分光光度计分析纳米WO₃光降解亚甲基蓝(MB)实验来研究水热反应时间对所制备的纳米WO₃光催化活性的影响。结果表明：水热条件下，反应温度为110℃时，反应时间为14 h的纳米WO₃样品具有最好的光催化活性，在500 W氙灯照射120 min后对MB的降解率达到了95%，显示了其优良的光催化性能。
The monoclinic nano WO₃ were prepared by hydrothermal method. The phase structure of the as-prepared samples was characterized by X-ray powder diffraction (XRD). The effect of reaction time on the photocatalytic activity of the prepared WO₃ samples was analyzed on UV-Vis spectro-photometer. The results show that the WO₃ sample synthesized at 110？C for 14 h has the highest photocatalytic activity. Under the 500 W Xe lamp irradiation, the degradation rate for MB within 120 min reached 95%, showing superior photocatalytic properties.

References

[1]	Zhang, K. and Guo, L.J. (2013) Metal Sulphide Semiconductors for Photocatalytic Hydrogen Production. Catalysis Science & Technology, 3, 1672-1690. http://dx.doi.org/10.1039/c3cy00018d
[2]	Yang, L.L., Zhou, H., Fan, T.X. and Zhang, D. (2014) Semiconductor Photocatalysts for Water Oxidation: Current Status and Challenges. Physical Chemistry Chemical Physics, 16, 6810-6826. http://dx.doi.org/10.1039/c4cp00246f
[3]	Chen, X.B. and Mao, S.S. (2007) Titanium Dioxide Nanomaterials: Synthesis, Properties, Modifications, and Application. Chemical Reviews, 107, 2891-2959. http://dx.doi.org/10.1021/cr0500535
[4]	Nakata, K. and Fujishima, A. (2012) TiO2 Photocatalysis: Design and Applications. Journal of Photochemistry and Photobiology C, 13, 169-189. http://dx.doi.org/10.1016/j.jphotochemrev.2012.06.001
[5]	秦祖赠, 苏通明, 蒋月秀, 刘瑞雯, 刘自力. 掺杂ZnO光催化剂研究进展[J]. 工业催化, 2014, 22(3): 161-166.
[6]	张玉才. 纳米三氧化钨的制备及其应用研究[J]. 化工设计通讯, 2015, 41(5): 53-55.
[7]	Xing, X.Y., Ma, Y.X., Li, J., Fan, G.Y., Ding, H.F., Ma, X.M., Yang, L. and Xi, G.X. (2014) Facile One-Pot Synthesis and Photocatalytic Properties of Hierarchically Structural BiVO4 with Different Morphologies. CrystEngComm, 16, 10218-10226. http://dx.doi.org/10.1039/C4CE01198H
[8]	Liu, S.J., Hou, Y.F., Zheng, S.L., Zhang, Y. and Wang, Y. (2013) One-Dimensional Hierarchical Bi2WO6 Hollow Tubes with Porous Walls: Synthesis and Photocatalytic Property. CrystEngComm, 15, 4124-4130. http://dx.doi.org/10.1039/c3ce40237a
[9]	Mao, J., Chen, X.M. and Du, X.W. (2016) Facile Synthesis of Three Dimensional CdS Nanoflowers with High Photocatalytic Performance. Journal of Alloys and Compounds, 656, 972-977. http://dx.doi.org/10.1016/j.jallcom.2015.10.064
[10]	Peng, S.J., Li, L.L., Wu, Y.Z., Jia, L., Tian, L.L., Srinivasan, M., Ramakrishn, S., Yan, Q.Y. and Mhaisalkar, S.G. (2013) Size- and Shape-Controlled Synthesis of ZnIn2S4 Nanocrystals with High Photocatalytic Performance. CrystEngComm, 15, 1922-1930. http://dx.doi.org/10.1039/c2ce26593a
[11]	楚增勇, 原博, 颜廷楠. g-C3N4光催化性能的研究进展[J]. 无机材料学报, 2014, 29(8): 785-794.
[12]	陈志昌, 陈思浩, 王继虎, 徐刚, 杨春宇. 石墨烯纳米复合材料在光催化应用中的研究进展[J]. 材料导报A, 2015, 29(10): 146-151.
[13]	Avellaneda, C. and Bulhoes, L.O.S. (2003) Photochromic Properties of WO3 and WO3: X (X = Ti, Nb, Ta and Zr) Thin Films. Solid State Ionics, 165, 117-121. http://dx.doi.org/10.1016/j.ssi.2003.08.023
[14]	Guidi, V., Blo, M., Butturi, M.A., Carotta, M.C., Giberti, A., Malagù, C., Martinelli, G., Piga, M., Sacerdoti, M. and Vendemiati, B. (2004) Aqueous and Alcoholic Syntheses of Tungsten Trioxide Powders for NO2 Detection. Sensors and Actuators B, 100, 277-282. http://dx.doi.org/10.1016/j.snb.2003.12.055
[15]	傅小明, 杨在志. WO3纳米棒的水热合成及其光敏特性[J]. 中国陶瓷, 2011, 47(3): 12-15.
[16]	Yu, J.G. and Qi, L.F. (2009) Template-Free Fabrication of Hierarchically Flower-Like Tungsten Trioxide Assemblies with Enhanced Visible-Light-Driven Photocatalytic Activity. Journal of Hazardous Materials, 169, 221-227. http://dx.doi.org/10.1016/j.jhazmat.2009.03.082
[17]	何晓宇. WO3纳米网格的制备及其光催化性能研究[J]. 功能材料, 2015, 46(14): 14118-14122.
[18]	Nandiyanto, A.B.D., Arutanti, O., Ogi, T., Iskandar, F., Kim, T.O. and Okuyama, K. (2013) Synthesis of Spherical Macroporous WO3 Particles and Their High Photocatalytic Performance. Chemical Engineering Science, 101, 523-532. http://dx.doi.org/10.1016/j.ces.2013.06.049
[19]	赵洁, 姚秉华, 贺友涛. 简单水热法制备纳米WO3及其光催化性能[J]. 水处理技术, 2012, 38(10): 42-46.

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