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Metal–organic frameworks-derived TiO2 for photocatalytic degradation of tetracycline hydrochloride
The Canadian Journal of Chemical Engineering ( IF 1.6 ) Pub Date : 2022-07-15 , DOI: 10.1002/cjce.24550 Xin Wan 1 , Guanglai Mo 1 , Jianhong Luo 1
The Canadian Journal of Chemical Engineering ( IF 1.6 ) Pub Date : 2022-07-15 , DOI: 10.1002/cjce.24550 Xin Wan 1 , Guanglai Mo 1 , Jianhong Luo 1
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This 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.
中文翻译：
金属有机骨架衍生的二氧化钛光催化降解四环素盐酸盐
该工作将改变MIL-125(Ti)衍生TiO 2的C掺杂是提高其光催化性能的关键因素的普遍认识，也有助于深入理解光催化材料结构与性能之间的内在关系. 为TiO 2在光催化领域的更广泛应用提供了一种简单的合成方法。与以往的研究相比，本文采用钛基金属有机骨架材料MIL-125(Ti)，在空气中以更低温度、更短时间煅烧制备半导体光催化剂M-TiO 2 。M-TiO 2分析后实验制备，得到的结果是没有明显的团聚，形态几乎没有变化，同时框架结构没有倒塌。因此，保留了金属有机框架（MOF）作为前体衍生物的大比表面积和多孔性的优势。对M-TiO 2与前驱体相比在微观形貌、孔结构、比表面积等方面的变化进行了系列研究。结果表明，与商用TiO 2 -P25相比，M-TiO 2的性能盐酸四环素的光催化降解是前驱体金属有机骨架MIL-125(Ti)的5.7倍、P25的2.2倍，具有良好的循环稳定性。
更新日期：2022-07-15
中文翻译：
金属有机骨架衍生的二氧化钛光催化降解四环素盐酸盐
该工作将改变MIL-125(Ti)衍生TiO 2的C掺杂是提高其光催化性能的关键因素的普遍认识，也有助于深入理解光催化材料结构与性能之间的内在关系. 为TiO 2在光催化领域的更广泛应用提供了一种简单的合成方法。与以往的研究相比，本文采用钛基金属有机骨架材料MIL-125(Ti)，在空气中以更低温度、更短时间煅烧制备半导体光催化剂M-TiO 2 。M-TiO 2分析后实验制备，得到的结果是没有明显的团聚，形态几乎没有变化，同时框架结构没有倒塌。因此，保留了金属有机框架（MOF）作为前体衍生物的大比表面积和多孔性的优势。对M-TiO 2与前驱体相比在微观形貌、孔结构、比表面积等方面的变化进行了系列研究。结果表明，与商用TiO 2 -P25相比，M-TiO 2的性能盐酸四环素的光催化降解是前驱体金属有机骨架MIL-125(Ti)的5.7倍、P25的2.2倍，具有良好的循环稳定性。
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