Increase in Photocatalytic Activity of TiO2 through Intervalence Charge Transfer

通过间隔电荷转移提高 TiO2 的光催化活性

• 批准号: DP0988365
• 负责人: Prof Charles Sorrell
• 金额: $ 14.41万
• 依托单位: The University of New South Wales
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2009
• 资助国家: 澳大利亚
• 起止时间: 2009-01-01 至 2010-12-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP0988365
• 关键词: Increase; Photocatalytic; Activity; TiO2; through

Titanium dioxide (TiO2) has many proposed and realised applications in energy and the environment. The main problem that has hindered development and commercialisation of devices using TiO2 is its low photocatalytic activity, which results from its poor absorption of visible and infrared light. Most researchers modify the properties of TiO2 by conventional electrochemical methods to improve its performance but these attempts have been of limited success. The present research involves a completely new approach to the problem, which is based on the method used in the heat treatment of sapphire to improve its colour. This approach uses a phenomenon involving the modification of the optical properties to improve its absorption of light.

二氧化钛（TiO2）在能源和环境方面有许多已提出和实现的应用。 阻碍使用TiO 2的设备的开发和商业化的主要问题是其低光催化活性，这是由于其对可见光和红外光的吸收差。大多数研究人员通过常规的电化学方法来修饰TiO2的性质以改善其性能，但这些尝试取得的成功有限。目前的研究涉及一种全新的方法来解决这个问题，这是基于蓝宝石热处理中使用的方法，以改善其颜色。 这种方法使用涉及光学性质的修改的现象，以改善其光的吸收。