Abstract Fenton catalytic oxidation is an efficient and green method to remove pollutants, and the preparation of Fenton catalyst by MOF is a significant task. In this work, Ce-doped UiO-67−400 was successfully synthesized by introducing cerium into zirconium based UiO-67 skeleton by one-step hydrothermal synthesis approach followed by calcination at high temperature. The as-prepared samples were characterized by using the SEM, TEM, XRD, FT-IR, XPS and N2 adsorption-desorption techniques. The synthesized materials were used as catalyst in the Fenton-like oxidation of methylene blue model reaction with H2O2 as an oxidant. The experimental results of the catalyst showed that the Ce-doped UiO-67-400 catalyst calcined at 400 °C has a larger pore size, which is conducive to H2O2 decomposition and ·OH catalysis of methylene blue as compared to non-doped one. Under the optimal conditions, methylene blue removal rate reached 94.1 % within 30 min. We hope that the results of the present work could play a significant role in the waste water treatment research avenue.

中文翻译：

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Ce掺杂MOF的类芬顿氧化催化降解亚甲基蓝

摘要 Fenton催化氧化是一种高效、绿色的污染物去除方法，利用MOF制备Fenton催化剂是一项重大任务。在这项工作中，通过一步水热合成方法将铈引入锆基UiO-67骨架，然后在高温下煅烧，成功合成了Ce掺杂的UiO-67-400。通过使用 SEM、TEM、XRD、FT-IR、XPS 和 N2 吸附-解吸技术对制备的样品进行表征。合成的材料用作亚甲蓝模型反应的类芬顿氧化反应的催化剂，H2O2 作为氧化剂。催化剂的实验结果表明，在400℃煅烧的Ce掺杂UiO-67-400催化剂具有较大的孔径，与未掺杂的相比，这有利于亚甲基蓝的 H2O2 分解和·OH 催化。在最佳条件下，30 min内亚甲蓝去除率达到94.1%。我们希望目前的工作成果能够在废水处理研究领域发挥重要作用。