论文部分内容阅读
TiO2纳米管阵列具有比表面积大、吸附能力强、载流子传输快等独特优势,已成为光电转换和光催化等诸多领域的研究热点,应用前景广阔。但是TiO2纳米管阵列也存在Ti O2的固有缺陷,其带隙较宽,只能吸收部分紫外光(λ<387nm);同时光生载流子容易复合,成为其实际应用的“瓶颈”。国内外围绕Ti O2纳米管阵列改性进行了大量研究,其中综合运用多种手段进行的多元改性取得了一定的成效。本文综合评述了TiO2纳米管阵列的多元改性及应用研究进展,分析了可能存在的问题,并展望未来的研究趋势。
TiO2 nanotube arrays have the unique advantages of large specific surface area, strong adsorption capacity and fast carrier transport. They have become the research hotspots in many fields such as photoelectric conversion and photocatalysis. Their application prospects are promising. However, the TiO2 nanotube array also has the inherent defect of Ti O2. The band gap of the TiO2 nanotube array is wide, and it can only absorb part of the ultraviolet light (λ <387 nm). Meanwhile, photogenerated carriers are easy to recombine and become the practical bottleneck. A great deal of researches have been done on the modification of Ti O2 nanotube arrays both at home and abroad, and some achievements have been achieved by using a variety of means to carry out multivariate modification. In this paper, we reviewed the research progress of multivariate modification and application of TiO2 nanotube arrays, analyzed the possible problems, and looked forward to the future research trends.