Liang Yuan-Chang, Zhao Wei-Cheng
Department of Optoelectronics and Materials Technology, National Taiwan Ocean University, Keelung 20224, Taiwan.
Nanomaterials (Basel). 2021 Mar 8;11(3):667. doi: 10.3390/nano11030667.
Disk- and filament-like ZnO crystals were decorated on one-dimensional TiO nanostructures (TiO-ZnO) through various integrated physical and chemical synthesis methods. The morphology of the ZnO crystals on TiO varied with the chemical synthesis method used. ZnO nanodisks decorated with TiO nanorods (TiO-ZnO-C) were synthesized using the chemical bath deposition method, and ZnO filament-like crystals decorated with TiO nanorods (TiO-ZnO-H) were synthesized through the hydrothermal method. Compared with the pristine TiO nanorods, the as-synthesized TiO-ZnO composites exhibited enhanced photophysiochemical performance. Furthermore, because of their fast electron transportation and abundant surface active sites, the ZnO nanodisks in the TiO-ZnO-C composite exhibited a higher photoactivity than those in the TiO-ZnO-H composite. The morphology and crystal quality of the ZnO decoration layer were manipulated using different synthesis methods to realize disk- or filament-like ZnO-decorated TiO composites with various photoactive performance levels.
通过各种物理和化学综合合成方法，在一维TiO纳米结构（TiO-ZnO）上修饰了盘状和丝状ZnO晶体。TiO上ZnO晶体的形态随所使用的化学合成方法而变化。采用化学浴沉积法合成了用TiO纳米棒修饰的ZnO纳米盘（TiO-ZnO-C），通过水热法合成了用TiO纳米棒修饰的ZnO丝状晶体（TiO-ZnO-H）。与原始TiO纳米棒相比，合成的TiO-ZnO复合材料表现出增强的光物理化学性能。此外，由于其快速的电子传输和丰富的表面活性位点，TiO-ZnO-C复合材料中的ZnO纳米盘比TiO-ZnO-H复合材料中的ZnO纳米盘表现出更高的光活性。利用不同的合成方法控制ZnO修饰层的形态和晶体质量，以实现具有不同光活性性能水平的盘状或丝状ZnO修饰的TiO复合材料。
