fig2

Figure 2. (A)The preparation of CeO₂-COFs (Reproduced with permission^[84]. Copyright 2024, Elsevier), and (B) Zr-MOFs-ZrO₂-MWCNTs (Reproduced with permission^[94]. Copyright 2024, Academic Press), NEESs; (C) The detection mechanism of UiO-66-KB-CNTs for methyl parathion (Reproduced with permission^[96]. Copyright 2023, Elsevier); (D) The preparation of UiO-66-curcumin NEESs (Reproduced with permission^[22]. Copyright 2023, Elsevier); (E) The simultaneous detection of Nd-UiO-66-MWCNTs for parathion and paraoxon (Reproduced with permission^[97]. Copyright 2022, Pergamon). TAPB: 1,3,5-tris(4-aminophenyl)benzene; DMTP: 2,5-dimethoxyterephaldehyde; COF: covalent organic framework; GCE: glassy carbon electrode; MOF: metal-organic framework; MWCNT: multi-walled carbon nanotube; NEES: non-enzymatic electrochemical sensor; UiO-66: zirconium 1,4-dicarboxybenzene metal-organic framework.