采用水热法制备了不同形貌和尺寸的GaOOH前驱体.通过XRD、SEM和TEM进行表征,并探讨分析了GaOOH的生长机理.结果表明,前驱液的pH值对GaOOH的形貌有明显的调控作用并对其结晶度有一定影响.然后将制备的GaOOH前驱体分别在温度为600℃和900℃的空气中煅烧转化成了α-Ga2O3和3-Ga2O3.煅烧后的产物具有良好的形貌继承性.荧光光谱测试(λex=250 nm)结果显示,pH值为5时制备的GaOOH和Ga2O3的发射峰位于415 nm和465 nm,而在pH值为3和8时的发射峰均位于370 nm和465 nm.
参考文献
| [1] | Binet L.;Gourier D. .Origin of the blue luminescence of beta-Ga2O3[J].The journal of physics and chemistry of solids,1998(8):1241-1249. |
| [2] | Qian HS;Gunawan P;Zhang YX;Lin GF;Zheng JW;Xu R .Template-free synthesis of highly uniform alpha-GaOOH spindles and conversion to alpha-Ga2O3 and beta-Ga2O3[J].Crystal growth & design,2008(4):1282-1287. |
| [3] | Wong EW. Sheehan PE. Lieber CM. .NANOBEAM MECHANICS - ELASTICITY, STRENGTH, AND TOUGHNESS OF NANORODS AND NANOTUBES[J].Science,1997(5334):1971-1975. |
| [4] | Weh T.;Fleischer M.;Meixner H.;Frank J. .On the mechanism of hydrogen sensing with SiO2 modificated high temperature Ga2O3 sensors[J].Sensors and Actuators, B. Chemical,2001(1/3):202-207. |
| [5] | QUAN Yu,LIU Su-qin,HUANG Ke-long,FANG Dong,ZHANG Xue-ying,HOU Hua-wei.Hydrothermal synthesis and characterization of Eu-doped GaOOH/α-Ga2O3/β-Ga2O3 nanoparticles[J].中国有色金属学报（英文版）,2010(08):1458-1462. |
| [6] | 郭莉,王丹军,闫龙,付峰,强小丹,刘启瑞.ZnO纳米晶的面催化活性特性研究[J].人工晶体学报,2011(04):1017-1021. |
| [7] | 朱振峰,王小枫,刘辉,刘佃光,王丹.微波水热合成SnO2微球及其生长机理初探[J].人工晶体学报,2011(05):1203-1208. |
| [8] | A. Cuneyt Tas;Peter J. Majewski;Fritz Aldinger .Synthesis of Gallium Oxide Hydroxide Crystals in Aqueous Solutions with or without Urea and Their Calcination Behavior[J].Journal of the American Ceramic Society,2002(6):1421-1429. |
| [9] | M. Ristic;S. Popovic;S. Music .Application of sol-gel method in the synthesis of gallium(III)-oxide[J].Materials Letters,2005(10):1227-1233. |
| [10] | S.G. Chen;S.M. Luo;Y. Zhou;Y. Chen;Y.Q. Liu;C.G. Long .A simple hydrothermal route to GaOOH intersecting-rods with regular diamond-like cross section[J].Materials Letters,2008(30):4566-4569. |
| [11] | Yan, DH;Yin, GF;Huang, ZB;Liao, XM;Kang, YQ;Yao, YD;Hao, BQ;Gu, JW;Han, D .Biomineralization of Uniform Gallium Oxide Rods with Cellular Compatibility[J].Inorganic Chemistry: A Research Journal that Includes Bioinorganic, Catalytic, Organometallic, Solid-State, and Synthetic Chemistry and Reaction Dynamics,2009(14):6471-6479. |
| [12] | Chih-Chia Huang;Chen-Sheng Yeh .GaOOH, and β-and γ-Ga2O3 nanowires: preparation and photoluminescence[J].New Journal of Chemistry,2010(1):103-107. |
| [13] | Xiaohe Liu;Guanzhou Qiu;Yan Zhao .Gallium oxide nanorods by the conversion of gallium oxide hydroxide nanorods[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,2007(1/2):275-278. |
| [14] | Yanyan Zhao;Ray L. Frost;Wayde N. Martens .Synthesis and Characterization of Gallium Oxide Nanostructures via a Soft-Chemistry Route[J].The journal of physical chemistry, C. Nanomaterials and interfaces,2007(44):16290-16299. |
| [15] | S. Fujibara;Y. Shibata;E. Hosono .Chemical Deposition of Rodlike GaOOH and beta-Ga_2O_3 Films Using Simple Aqueous Solutions[J].Journal of the Electrochemical Society,2005(11):C764-C768. |
| [16] | Suxiang Ge;Lizhi Zhang;Huimin Jia;Zhi Zheng .Microwave-assisted synthesis of various gallium oxyhydroxide nanorods and their controllable conversion into different gallium oxide polymorphs[J].Journal of Materials Research,2009(7):2268-2275. |
| [17] | Guogang Li;Chong Peng;Chunxia Li;Piaoping Yang;Zhiyao Hou;Yong Fan;Ziyong Cheng;Jun Lin .Shape-Controllable Synthesis and Morphology-Dependent Luminescence Properties of GaOOH:Dy3+and β-Ga2O3:Dy3+[J].Inorganic Chemistry: A Research Journal that Includes Bioinorganic, Catalytic, Organometallic, Solid-State, and Synthetic Chemistry and Reaction Dynamics,2010(4):1449-1457. |
| [18] | C. H. Liang;G. W. Meng;G. Z. Wang;Y. W. Wang;L. D. Zhang;S. Y. Zhang .Catalytic synthesis and photoluminescence of β-Ga_(2)O_(3) nanowires[J].Applied physics letters,2001(21):3202-3204. |
| [19] | Zhong Qing Yu;Chong Xia Wang;Xiao Tian Gu;Cun Li .Photoluminescent properties of boehmite whisker prepared by sol-gel process[J].Journal of Luminescence: An Interdisciplinary Journal of Research on Excited State Processes in Condensed Matter,2004(2):153-157. |
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