二氧化钛是最重要的光电半导体材料之一,纳米二氧化钛作为最重要的光催化剂所面临的巨大挑战是无法吸收可见光而导致太阳能利用效率低下.拓展二氧化钛的光谱响应范围是提高其太阳能利用效率的关键.最近发展的可以有效吸收可见光的黑色二氧化钛受到广泛关注,我们针对黑色纳米二氧化钛材料展开了一系列工作,发展出多种黑色二氧化钛材料的制备方法,获得了太阳能高吸收、高效光催化的材料.本文综合了我们的部分研究工作,概述了所制备黑色纳米二氧化钛的物化性质、制备方法及其应用,并提出了该材料的研究方向.
Insufficient visible-light power conversion has been a great challenge for nanotitania photocatalysts in solar energy utilization. Recently, a new material--black TiO2 has attracted enormous attention due to its greatly enhanced solar absorption and photocatalytic activity. Our group has made tremendous contributions to the researches of black TiO2 via developing many effective preparation methods harvesting the extremely efficient black titania. Herein lie our recent progresses in researching black nanotitania, and a special emphasis on the fabrication methods, the chemical/ physical properties and solar application.