摘要光催化材料在环保领域中的应用成为当前研究的一个重点和热门课题，一旦在光催化材料的光响应范围、能量转换效率和稳定性等几方面取得重大科学突破，研制出可高效利用太阳能的光催化材料，将对未来太阳能的利用将产生性的影响。碳对于物质内部的空穴/电子具有很好的传输性能，研究表明，碳包覆可提高普通光催化剂如 ZnO在紫外光下催化活性和稳定性。

本论文通过成熟的碳球制备技术，制备葡萄糖碳微球，再以碳微球为模板，用水热法制备C@Bi2WO6，并对所得样品进行形貌分析和光催化性能的测试。67809

毕业论文关键词：光催化，Bi2WO6，碳微球，水热法

PREPARATION OF COLLOIDAL CARBON MICROSPHERES 

AND APPLICATION IN SYNTHESIS OF C@BI2WO6 PHOTOCATALYST

ABSTRACT

Photocatalytic materials have become a research priority and hot topic in the environmental field of application, if we can achieved several major scientific breakthrough on the light response range, the energy conversion efficiency and stability of Photocatalytic materials, and developed the photocatalytic material which can use solar energy efficiently, that will have a revolutionary impact in the use of future solar energy. Carbon has played a significant role in the material with the electron/hole transport, some studies have shown that carbon-coated can improve catalytic activity and stability of photocatalyst under ultraviolet light, such as ZnO..

This paper stated that using a mature technology to preparation carbon spheres and use hydrothermal synthesis C@Bi2WO6, and the sample will be test by XRD,TEM, UV-vis spectroscopy and its photocatalytic properties is evaluated by the degradation of organic dyes.

Keywords: Photocatalysis, Bi2WO6, carbon microspheres, hydrothermal

目   录

1.绪论 1

1.1光催化材料概述 1

1.2 光催化材料的发展历史与现状 2

1.3 光催化材料的应用 3

1.4 胶体碳微球 4

1.5 Bi2WO6纳米光催化材料 4

1.6 Bi2WO6粉末的常用制备方法 5

1.7 C@Bi2WO6纳米光催化材料 7

1.8纳米光催化材料常用的表征方法 8

1.9纳米光催化材料性能测试 10

2 实验部分-水热法制备碳微球以及合成C@Bi2WO6纳米粉末 11

2.1 胶体碳微球的制备 11

2.1.1 实验仪器和试剂 11

2.1.2 制备方法 12

2.1.3 实验步骤 13

2.2 C@Bi2WO6的合成 13

2.2.1 实验药品与仪器 13

2.2.2 制备方法 14

2.2.3 实验步骤 15

2.3 样品表征 15

3 实验结果与分析 16

3.1 胶体碳微球样品SEM结果分析 16

3.2 C@Bi2WO6纳米粉末的表征结果分析 18

3.3 C@ Bi2WO6的紫外-可见光吸收能谱分析 23

3.4 C@ Bi2WO6的光催化分析