模板效应下制备ZnO可见光激发光催化剂的初步研究
关键词 半导体材料 纤文素 纳米ZnO 模板效应 4943
毕业设计说明书（论文）外文摘要
Title ：A preliminary study of ZnO visible light photocatalytic prepared by bacterial cellulose as template.
Abstract
Nano-sized zinc oxide was synthesized and deposited onto bacterial cellulose(BC) fibers using the hydrothermal process at relatively low temperature. The prepared materials were characterized using several techniques including scanning electron microscopy, UV-vis absortion spectroscopy, Fourier transform infrared spectroscopy(FTIR), X-ray diffraction and thermogravimetric analysis. X-ray diffraction studies of the ZnO-coated fiber indicate formation of the hexagonal crystal phase which was satisfactory crystallized on the fiber surface. The electron micrographs show formation of zinc oxide nanoparticles about 200nm in size which have been homogeneously dispersed on the BC fibers . The structure of the prepared materials were characterized by Fourier transform infrared spectroscopy(FTIR).The UV-vis absorption of ZnO was carried out for further analysis of the optical absorption property of the material.The results of characterization reveals that we successfully prepared a ZnO nanorod used BC as template with homogeneous aspect ratio and splendid morphology compare to the pure ZnO nanorod.
Keywords Nano-sized zinc oxide, Bacterial cellulose, ZnO nanorod, Template
目次
第一章 绪论 1
1.纳米氧化锌的应用 1
1.1纳米ZnO在光电领域的应用 1
1.1.1 纳米ZnO用于紫外防护 1
1.1.2 纳米ZnO用于荧光产品 1
1.1.3 制备太阳能电池的光阳电极 2
1.1.4 纳米ZnO用于表面涂料产品 2
1.1.5 利用纳米ZnO探测紫外光 2
1.2 纳米ZnO在生物医学方面的应用 3
1.3 纳米ZnO在化学方面的应用 3
1.3.1 纳米ZnO用于制造催化剂 3
1.3.2 纳米ZnO用于电池电极 4
1.4 纳米ZnO在半导体材料中的应用 4
1.4.1 纳米ZnO用于图像记录材料 4
1.4.2 纳米ZnO用于气体传感器 4
1.4.3 纳米ZnO用于制作表面波器件 4
1.4.4纳米ZnO用于压敏变阻器和电容器 5
1.4.5 纳米ZnO用于抗静电复合材料 5
1.5纳米ZnO制备方法 6
1.6本课题研究内容 13
1.6.1研究目的 13
1.6.2研究内容 13
第二章 水热法制备ZnO/BC杂化纤文 13
2.1 实验部分 13
2.1.1 实验仪器 13
2.1.2 实验试剂 14
2.1.3 一文ZnO/BCF制备 15
2.1.3.1 BC的制备 15
2.1.3.2杂化纤文的制备 16
2.2 实验结果与讨论 17
2.2.1 一文ZnO/BCF制备机理 17
2.2.2 X射线衍射 17