光电子  >> Vol. 3 No. 4 (December 2013)

氨水量对微波制备花状ZnO光催化性能的影响
Effect of Precursor Ammonia on Photocatalysis of Flower-Like ZnO Microstructures Prepared by Microwave Method

DOI: 10.12677/OE.2013.34008, PDF, HTML, 下载: 2,348  浏览: 8,754 

作者: 刘 冬, 马青兰, 黄远明:常州大学数理学院,常州市

关键词: 微波法花状ZnO形貌光催化Microwave Method; Flower-Like ZnO; Morphology; Photocatalysis

摘要: 通过一种简便高效的微波法在不同氨水量下制备了花状ZnO。采用X射线衍射仪(XRD)、扫描电子显微镜(SEM)及光致发光光谱仪(PL)对产物的结构、形貌以及光学特性进行表征。发现此种方法制备的ZnO为微米量级,花状结构是由一系列底部粗、顶部细的纳米棒组合而成,光致发光显示有很强的绿光发光峰。光催化测试表明ZnO对甲基橙有较强的降解作用,1小时的降解率约95%。氨水量对ZnO的结构形貌有影响,对光致发光和光催化效果无明显影响。
Abstract: Flower-like ZnO was prepared by using a simple and efficient microwave method in different amount of ammonia. The structure, morphology and optical properties of the products were characterized by XRD, SEM and PL. It was found that ZnO prepared by this method was micro dimension. Flower-like structure was consisted of a series of the thick bottom and thin top nanorods; photoluminescence showed a strong green emission peak. Photocatalytic meas- ure showed that ZnO had a strong function of degradation on methyl orange, and the degradation rate is about 95% after 1 hour. The amount of ammonia had effects on structure and morphology of ZnO, but had no significant effects on pho- toluminescence and photocatalysis.

文章引用: 刘冬, 马青兰, 黄远明. 氨水量对微波制备花状ZnO光催化性能的影响[J]. 光电子, 2013, 3(4): 35-38. http://dx.doi.org/10.12677/OE.2013.34008

参考文献

[1] Zhang, Q.H., Han, W.D., Hong, Y.J., et al. (2009) Photocatalytic reduction of CO2 with H2O on Pt-loaded TiO2 catalyst. Catalysis Today, 148, 335-340.
[2] Chen, L., ThanhThuy, T.T, Huang, C.A., et al. (2013) Synthesis and photocatalytic application of Au/Ag nanoparticle-sensitized ZnO films. Applied Surface Science, 273, 82-88.
[3] Huang, Y.M., Ma, Q.L. and Zhai, B.G. (2013) Preparation and performance of ZnO based gas sensors working at room tem- perature. Key Engineering Materials, 538, 289-292.
[4] Li, C.P., Li, D.M., Li, J.H., et al. (2010) Growth mechanism, structural and optical properties of hexagonal cone-shaped ZnO nanostructure. Chinese Journal of Luminescence, 31, 114-118.
[5] Ahmad, M., Zhu, J., Sun, H.Y., et al. (2011) Synthesis of hierar- chical flower-like ZnO nanostructures and their functionalization by Au nanoparticles for improved photocatalytic and high per- formance Li-ion battery anodes. Journal of Materials Chemis- try, 21, 7723-7729.
[6] Guo, W.W., Liu, T.M., Zeng, W., et al. (2011) Gas-sensing prop- erty improvement of ZnO by hierarchical flower-like architect- tures. Materials Letters, 65, 3384-3387.
[7] Zhang, W.D. and Ma, X.Y. (2009) Effects of flower-like ZnO nanowhiskers on the mechanical, thermal and antibacterial pro- perties of waterborne polyurethane. Polymer Degradation and Stability, 94, 1103-1109.
[8] Qi, L., Li, H.S. and Lin, D. (2013) Simple synthesis of flower- like ZnO by a dextran assisted solution route and their photo- catalytic degradation property. Materials Letters, 107, 354-356.
[9] Xie, J., Wang, H., Duan, M., et al. (2011) Synthesis and photo- catalysis properties of ZnO structures with different morpholo- gies via hydrothermal method. Applied Surface Science, 257, 6358-6363.
[10] Su, X.T., Zhao, H., Xiao, F., et al. (2012) Synthesis of flower- like 3D ZnO microstructures and their size-dependent ethanol sensing properties. SciVerse ScienceDirect, 38, 1643-1647.
[11] 刘春艳, 程超 (2010) 微波法合成多种形貌氧化锌. 影像科学与光化学, 4, 265-271.
[12] Li, Q., Li, H., Wang, R.M., et al. (2013) Controllable microwave and ultrasonic wave combined synthesis of ZnO micro-/nanos- tructures in HEPES solution and their shape-dependent photo- catalytic activities. Journal of Alloys and Compounds, 567, 1-9.
[13] Li, H., Liu, E.T., Lu, Z., et al. (2011) Fabrication of ordered flower-like ZnO nanostructures by a microwave and ultrasonic combined technique and their enhanced photocatalytic activity. Materials Letters, 65, 3440-3443.
[14] Wu, S.S., Jia, Q.M., Sun, Y.L., et al. (2012) Microwave-hydro- thermal preparation of flower-like ZnO microstructure and its photocatalytic activity. ScienceDirect, 22, 2465-2470.
[15] Kajbafvala, A., Samberg, J.P., Ghorbani, H., et al. (2012) Effects of morphology on photocatalytic performance of Zinc oxide nanotructures synthesized by rapid microwave irradiation meth- ods. Superlattices and Microstructures, 51, 512-522.
[16] Huang, Y.M., Ma, Q.L. and Zhai, B.G. (2013) A simple method to grow one-dimensional ZnO nanostructures in air. Materials Letters, 93, 266-268.
[17] 朱振峰, 蔺华妮, 陈之战 等 (2012) 低温水浴法制备不同花状结构ZnO粉体及其发光性能研究. 功能材料, 43, 1-5.
[18] Liu, W.J., Meng, X.Q., Zheng, Y., et al. (2010) Synthesis and photoluminescence properties of ZnO nanorods and nanotubes. Applied Surface Science, 257, 677-679.
[19] 王悦辉, 沈建红 (2012) 不同电性的纳米银对甲基橙光谱学性质的影响. 物理化学学报, 6, 1313-1319.
[20] Meng, M., Lai, Y.L., Yu, Y.F., et al. (2011) Photoluminescence and photocatalysis of the flower-like nano-ZnO photocatalysts prepared by a facile hydrothermal method with or without ultra- sonic assistance. Applied Catalysis B: Environmental, 105, 335- 345.