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Trans. Nonferrous Met. Soc. China 22(2012) 2465-2470 Microwave-hydrothermal preparation of flower-like ZnO microstructure and its photocatalytic activity WU Shui-sheng1, 2, JIA Qing-ming1, SUN... and Technology, Kunming University of Science and Technology,Kunming 650504, China Received 9 July 2012; accepted 1 August 2012 Abstract: The flower-like ZnO microstructure was prepared by a straightforward......
hydroxide solution was measured in a closed polytetrafluoroethylene vessel from 25 to 100 ℃. The ZnO solubility was determined by employing the method of isothermal solution saturation. The results show that only ZnO solid exists in the equilibrium state in the low concentration alkali regions, and the solubility of zinc oxide is almost invariable with temperature. With the increase of alkali......
Trans. Nonferrous Met. Soc. China 22(2012) 2459-2464 Synthesis and photoluminescence properties of single-crystal ZnO hexagonal pyramids by PEG400-assisted thermal decomposition route LIU... Hengye Electrical Heater Equipment Co. Ltd., Wuxi 214161, China Received 9 July 2012; accepted 6 August 2012 Abstract: Large-scale synthesis of ZnO hexagonal pyramids was achieved by a simple thermal......
纳米ZnO薄膜的制备及其光催化性能郑磊1,鲁道荣1,黄长萍1,吴素贞1(1.安徽省合肥市合肥工业大学化学工程学院)摘 要:采用溶胶-凝胶法制备纳米ZnO,用X射线衍射仪和透射电镜表征纳米ZnO的结构和形貌,制成薄膜研究其光催化性能.结果表明,在450~650℃范围内,随着焙烧温度增加,ZnO的结晶度和晶粒尺寸均增大.纳米ZnO的光催化性能在焙烧温度为650℃时较好.ZnO薄膜(4 cm×2 cm)光催化氧化降解苯酚溶液的适宜条件为苯酚溶液初始浓度0.145g/L,H2O2(30%)用量70.0mL/L,膜的纳米ZnO粉体用量为0.070g,室温下用两只40W荧光灯照射90m in.最佳条件下苯酚降解率可达95%.关键词:无机非金属材料； 纳米ZnO薄膜； 溶胶-凝胶法； 光催化； 苯酚； 降......
文章编号:1004-0609(2015)06-1625-09 常压烧结法制备ZnO陶瓷靶材 孙文燕,王日初,王小锋,彭超群 (中南大学 材料科学与工程学院,长沙 410083) 摘 要:采用凝胶注模成型技术制备ZnO陶瓷坯体,并在较低温度下常压烧结后获得相对密度达98.6%,晶粒尺寸为1.35 μm的陶瓷靶材,研究工艺参数对ZnO陶瓷靶材的相对密度,晶粒生长和电阻率的影响.结果表明:ZnO陶瓷靶材的相对密度随烧结温度升高而增大,在1050 ℃时达到最大值.适当增大升温速率或延长保温时间都有利于提高其相对密度.晶粒尺寸随升温速率的升高而减小,随保温时间的延长而增大.提高烧结温度和增加保温时间都可降低ZnO陶瓷靶材的电阻率.ZnO陶瓷靶材经1400 ℃烧结3 h后,获得的电阻率最小(为1.75×10-2 Ω·cm). 关键词:ZnO陶瓷靶材；凝胶注模；常压烧结；相对密度；晶粒尺寸......
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Trans. Nonferrous Met. Soc. China 22(2012) 2736-2741 Effect of KOH treatment on structural and photovoltaic properties of ZnO nanorod arrays ZHOU Yi, LI Dang, HUANG Yan, HE Wen-hong, XIAO Bin, LI Hong School of Chemistry and Biological Engineering, Changsha University of Science and Technology, Changsha 410114, China Received 27 September 2011; accepted 22 December 2011 Abstract: ZnO nanorod......
DOI:10.19476/j.ysxb.1004.0609.2000.s1.017 ZnO籽晶对ZnO-Bi2O3-TiO2-Sb2O3系陶瓷微观结构和压敏性能的影响 徐庆 陈文 袁润章 武汉工业大学材料复合新技术国家重点实验室!武汉430070 武汉工业大学材料科学与工程学院 摘 要: 研制了添加预制ZnO籽晶的ZnO Bi2 O3 TiO2 Sb2 O3系压敏陶瓷 , 测量了添加不同含量籽晶的ZnO陶瓷的压敏电压 (V1mA) ,非线性系数 (α) 和漏电流 (IL) 等电学性能参数 , 采用XRD和SEM研究了籽晶对ZnO压敏陶瓷微观结构的影响.研究结果表明 , 籽......
Optical properties of nanosized ZnO films prepared by sol-gel process LOU Xiao-bo (楼晓波), SHEN Hong-lie (沈鸿烈), ZHANG Hui (张 惠), LI Bin-bin (李斌斌) College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China Received 15 July 2007; accepted 10 September 2007 Abstract:Nanosized ZnO films were prepared by sol-gel process......
Influence of preparation methods on photoluminescence properties of ZnO films on quartz glass ZHAO Lei(赵 磊), LIAN Jian-she(连建设), LIU Yu-hua(刘玉华), JIANG Qing(蒋 青) Key Laboratory of Automobile... on the photoluminescence properties of ZnO film was studied. Two methods were applied to fabricate ZnO films in a conventional pulsed laser deposition apparatus. One is high temperature (500-700 ℃) oxidation......
