Marć Maciej, Najder-Kozdrowska Lidia, Guskos Nikos, Żołnierkiewicz Grzegorz, Montero Ana Maria, Dudek Mirosław Roman
Institute of Physics, University of Zielona Góra, ul. Szafrana 4a, 65-069 Zielona Góra, Poland.
Institute of Physics, West Pomeranian University of Technology, Al. Piastów 17, 70-310 Szczecin, Poland.
Materials (Basel). 2020 Oct 16;13(20):4612. doi: 10.3390/ma13204612.
A method of the hydrothermal synthesis of Fe-doped titanate nanotubes (TNT) is reported in which the ultra-small FeO nanoparticles are used as the sources of Fe ions. The magnetic nanoparticles with a diameter of about 2 nm are added during the washing stage of the hydrothermal procedure. During washing, they gradually degrade and at the same time, the titanate product is transformed into nanotubes. The obtained nanotubes were characterized by structural and magnetic measurements. It was found that, depending on the value of the external magnetic field, they may show the property of room temperature ferromagnetism, paramagnetism or they may be diamagnetic. It was also shown that the modified TNTs have greater photocatalytic activity compared to unmodified TNTs.
报道了一种水热合成铁掺杂钛酸盐纳米管（TNT）的方法，其中使用超小的FeO纳米颗粒作为铁离子源。在水热过程的洗涤阶段加入直径约2nm的磁性纳米颗粒。在洗涤过程中，它们逐渐降解，同时钛酸盐产物转化为纳米管。通过结构和磁性测量对所得纳米管进行了表征。发现根据外部磁场的值，它们可能表现出室温铁磁性、顺磁性或可能是抗磁性。还表明，与未改性的TNT相比，改性的TNT具有更高的光催化活性。
