Metal–organic frameworks‐derived <scp> TiO <sub>2</sub> </scp> for photocatalytic degradation of tetracycline hydrochloride
Xin Wan, Guanglai Mo, Jianhong Luo
Abstract
Abstract This work will change the common understanding that C doping of MIL‐125(Ti)‐derived TiO 2 is a key factor in improving its photocatalytic performance, and it can also help to understand the internal relationship between the structure and performance of photocatalytic materials deeply. It provides a simple synthesis method for the wider application of TiO 2 in the field of photocatalysis. Compared with previous studies, this article uses the titanium‐based metal‐organic framework MIL‐125(Ti) to prepare the semiconductor photocatalyst M‐TiO 2 by calcination in the air at a lower temperature and shorter time. After analyzing the M‐TiO 2 prepared in the experiment, the results can be received that there is no obvious agglomeration and the morphology is almost unchanged, as the frame structure does not collapse at the same time. As a result, the advantages of the large specific surface area and porousness of metal–organic frameworks (MOF) as precursor derivatives are preserved. As for the changes in the micro‐morphology, pore structure, and specific surface area of M‐TiO 2 compared with the precursor, they are investigated seriatim. The results show that, compared with commercial TiO 2 ‐P25, the performance of M‐TiO 2 photocatalytic degradation of tetracycline hydrochloride is 5.7 times that of the precursor metal‐organic framework MIL‐125(Ti) and 2.2 times that of P25, and has good cycle stability.