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<p>Cu–Zn-EDTA, a bimetallic metal organic framework, was solvothermal synthesized and characterized, and its catalytic activity was discussed in this study. In order to reduce an array of nitroaromatic compounds (NACs), such as 4-nitrophenol (4-NP), 2-nitroaniline (2-NA) and 4-nitroaniline (4-NA), Cu–Zn-EDTA bimetallic MOF (BMOF) was employed as a catalyst. When BMOF was examined using several methods, it was found to have a unique shape of morphology which exhibits a layered pillar structure, better thermal stability, huge surface area and highly crystalline in nature. The synthesized BMOF showed excellent catalytic activity by hydrogenating the 2-nitroaniline and 4-nitroaniline within 2.5&#xa0;min, and the BMOF took 3.5&#xa0;min to hydrogenate the 4-nitrophenol at room temperature with a recyclability for 5 cycles. The hydrogenation reaction exhibits pseudo-first-order kinetics as shown by the kinetic studies. By the above results, BMOF can be used in the wastewater treatment for the removal of toxic NACs and it also adheres to green chemistry principles since it is non-toxic and economical.</p>

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Innovative Cu-Zn-EDTA bimetallic MOF: fabrication, characterization and catalytic hydrogenation of nitroaromatic compounds

  • 期刊论文

  • 发表日期：

    2025年6月17日

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  • Jayasree Komara,
  • Jaya Prasanthi Karumuri,
  • Mani Gudivada

摘要

Cu–Zn-EDTA, a bimetallic metal organic framework, was solvothermal synthesized and characterized, and its catalytic activity was discussed in this study. In order to reduce an array of nitroaromatic compounds (NACs), such as 4-nitrophenol (4-NP), 2-nitroaniline (2-NA) and 4-nitroaniline (4-NA), Cu–Zn-EDTA bimetallic MOF (BMOF) was employed as a catalyst. When BMOF was examined using several methods, it was found to have a unique shape of morphology which exhibits a layered pillar structure, better thermal stability, huge surface area and highly crystalline in nature. The synthesized BMOF showed excellent catalytic activity by hydrogenating the 2-nitroaniline and 4-nitroaniline within 2.5 min, and the BMOF took 3.5 min to hydrogenate the 4-nitrophenol at room temperature with a recyclability for 5 cycles. The hydrogenation reaction exhibits pseudo-first-order kinetics as shown by the kinetic studies. By the above results, BMOF can be used in the wastewater treatment for the removal of toxic NACs and it also adheres to green chemistry principles since it is non-toxic and economical.