A novel carbonized derivative of Fe-Cu bimetallic organic framework (Fe-Cu-MOF@C): preparation and optimization

作者：Guo, Shengxuan; Ren, Dajun^*; Huang, Yongwei; Wang, Zhaobo; Zhang, Shuqin; Zhang, Xiaoqing; Gong, Xiangyi

来源：WATER SCIENCE AND TECHNOLOGY, 2022, 86(10): 2701-2717.

DOI：10.2166/wst.2022.363

• carbon derivative
• Fe-Cu bimetallic organic framework
• microwave synthesis
• optimization of preparation conditions
• pyrolysis

A carbon derivative with Fe-Cu bimetallic organic framework (Fe-Cu-MOF@C) was prepared by microwave synthesis and pyrolysis. Using pot-assium persulfate (PS) as oxidant and 2,4-dichlorophenol (2,4-DCP) as target pollutant, the optimal preparation conditions of Fe-Cu-MOF@Cwere studied. The factors affecting the synthesis of Fe-Cu-MOF include microwave power, microwave time, microwave temperature, themolar ratio of metal ions to organic ligands, the molar ratio of iron and copper, etc. In addition, the influence of pyrolysis temperature onthe performance of Fe-Cu-MOF@C cannot be ignored. The results show that Fe-Cu-MOF@C has the best catalytic performance when themicrowave time is 30 min, the microwave power is 600 W, the microwave temperature is 150 degrees C, the molar ratio of (Fe2+Cu2+)/H2BDCis 10:3, the molar ratio of Fe2+/Cu(2+ )is 10:1, and the pyrolysis temperature is 700 degrees C. After 90 min of reaction, 2,4-DCP was completelyremoved. Repeatable experiments show that Fe-Cu-MOF@C has good stability and its service life can be restored by heat treatment. Inthis study, a heterogeneous catalyst with strong catalytic capacity, high stability and easy recovery was prepared by a simple and efficientprocess, which is conducive to the development of advanced oxidation technology and the progress of water environmental protection