Zhang Jin, Yang Chen, Li Shijie, Xi Yingxue, Cai Changlong, Liu Weiguo, Golosov Dmitriy, Zavadski Sergry, Melnikov Siarhei
Shaanxi Province Key Laboratory of Thin Films Technology and Optical Test, School of Optoelectronic Engineering, Xi'an Technological University, Xi'an 710032, China.
Belarusian State University of Informatics and Radioelectronics, Electronic Technique and Technology Department, Center 10.1, Thin Film Research Laboratory, 6 P. Brovka str., 220013 Minsk, Belarus.
Nanomaterials (Basel). 2020 Oct 23;10(11):2107. doi: 10.3390/nano10112107.
In this paper, the Fe doped rutile phase TiO nanotubes arrays (NTAs) were prepared in a low temperature water-assistant crystallization method. It is noteworthy that the Fe doping hardly hinders either the crystallization of rutile TiO NTAs or the highly-ordered nanotubular morphologies. Moreover, Fe did not form other compound impurities, which indicated that Fe substitute Ti into the lattice of TiO. With the introduction of Fe, the light absorption range of TiO NTAs extends from the ultraviolet band to the visible light range. Photocatalytic testing results indicate that Fe doped TiO NTAs can effectively improve the degradation rate of methyl orange aqueous solution in visible light, and the TiO NTAs with 0.2 mol/L Fe doping exhibits the highest photocatalytic degradation efficiency.
本文采用低温水辅助结晶法制备了铁掺杂金红石相二氧化钛纳米管阵列（NTAs）。值得注意的是，铁掺杂几乎不阻碍金红石型二氧化钛纳米管阵列的结晶或高度有序的纳米管形态。此外，铁没有形成其他复合杂质，这表明铁替代钛进入了二氧化钛的晶格。随着铁的引入，二氧化钛纳米管阵列的光吸收范围从紫外波段扩展到可见光范围。光催化测试结果表明，铁掺杂的二氧化钛纳米管阵列在可见光下能有效提高甲基橙水溶液的降解率，其中铁掺杂浓度为0.2 mol/L的二氧化钛纳米管阵列表现出最高的光催化降解效率。
