Abstract
AbstractThis work will change the common understanding that C doping of MIL‐125(Ti)‐derived TiO2 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 TiO2 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‐TiO2 by calcination in the air at a lower temperature and shorter time. After analyzing the M‐TiO2 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‐TiO2 compared with the precursor, they are investigated seriatim. The results show that, compared with commercial TiO2‐P25, the performance of M‐TiO2 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.
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