Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education, School of Life Sciences, Jilin University, Changchun 130012, China; College of Chemistry, Jilin University, Changchun 130012, China.
Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education, School of Life Sciences, Jilin University, Changchun 130012, China.
Bioresour Technol. 2018 Jan;247:1246-1248. doi: 10.1016/j.biortech.2017.09.161. Epub 2017 Sep 27.
The aim of this work was to construct a peroxidase mimic for achieving the phenol degradation through Fenton reaction. The enzyme mimic was synthesized through the conjugation of heme with the amino group of 2-amino-1,4-benzene dicarboxylate in UiO-66-NH (ZrMOF), namely Heme-ZrMOF. Compared to free heme, the composite Heme-ZrMOF exhibited an obviously enhanced ability for phenol degradation with up to 97.3% of phenol removal after 2h. Meanwhile, it could achieve the easy separation of catalyst from the system and the elimination of iron residues in the process of phenol degradation. Finally, the catalyst Heme-ZrMOF was observed to possess good recyclability in the phenol degradation with still 76.2% of phenol removal after 4 cycles.
这项工作的目的是构建一种过氧化物酶模拟物，通过芬顿反应实现苯酚的降解。该酶模拟物是通过血红素与 2-氨基-1,4-苯二甲酸的氨基在 UiO-66-NH（ZrMOF）中的共轭合成的，即血红素-ZrMOF。与游离血红素相比，复合血红素-ZrMOF 表现出明显增强的苯酚降解能力，在 2 小时内可达到高达 97.3%的苯酚去除率。同时，它可以在苯酚降解过程中实现催化剂的易于分离和铁残留的消除。最后，在苯酚降解中，催化剂血红素-ZrMOF 表现出良好的可循环性，在 4 个循环后仍可达到 76.2%的苯酚去除率。
