MOFs-derived Fe-N/C catalyst containing defect Fe-Nx as well as preparation method and application of MOFs-derived Fe-N/C catalyst

• Main Authors: XIAO TONG, WAN JINQUAN, YAN ZHICHENG, WANG YAN, MA YONGWEN
• Format: Patent
• Language: Chinese; English
• Published: 13.09.2022
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; METALLURGY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR RELEVANT APPARATUS; TRANSPORTING; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The invention discloses an MOFs (Metal-Organic Frameworks) derived Fe-N/C catalyst containing defect Fe-Nx as well as a preparation method and application of the MOFs derived Fe-N/C catalyst. The preparation method comprises the following steps: synthesizing a ZIF-8 precursor doped with iron phthalocyanine by a chemical method; and performing high-temperature pyrolysis on the precursor in a nitrogen atmosphere to obtain black powder, namely the MOFs-derived Fe-N/C catalyst containing the defect Fe-Nx active site. According to the method, the Fe-N/C catalyst containing the defect Fe-Nx is constructed on the basis of keeping the original 3D structure and morphology of the ZIF-8 to the greatest extent by utilizing the high thermal stability of the ZIF-8. The MOFs-derived defect Fe-Nx-containing Fe-N/C catalyst can activate persulfate to realize efficient degradation of emerging pollutants, can be repeatedly recycled, is environment-friendly, and has a wide application prospect in the field of advanced oxidation.