Ma, HuiminHuiminMaYang, RenhuiRenhuiYangXu, ZixuanZixuanXuYang, QuanQuanYangHu, XiaoxianXiaoxianHuZhang, YuanyuanYuanyuanZhangZeng, TingTingZengYang, JuanJuanYangLi, CaolingCaolingLiYang, NianjunNianjunYang2026-03-232026-03-2320250308-8146https://imec-publications.be/handle/20.500.12860/58913It is significative to exploit an electrochemical sensor with high selectivity and sensitivity for monitoring Cd2+ and Pb2+. Metal-organic frameworks (MOFs) have attracted great attention due to their merits. Metal-centered regulation of MOFs is vital for boosting electrochemical performance. Herein, bimetallic CeBi-MOF supported polyaniline (CeBi-MOF/PANI) was fabricated by a solvothermal approach and an oxidative polymerization process. The obtained CeBi-MOF/PANI was subsequently exploited to modify a glassy carbon electrode (GCE) for quantification of Pb2+ and Cd2+. Density Functional Theory (DFT) denotes that the modulation of metal-center can adjust and boost the adsorption capacity, and CeBi-MOF(Bi) surface possesses higher adsorption energy for the analytes. Meanwhile, the introduction of PANI nanoparticles significantly enhances the electronic conductivity. Hence, greatly improved current is achieved on a CeBi-MOF/PANI/GCE. Low detection limits of 0.31 and 0.05 μg/L are gained for Pb2+ and Cd2+, respectively. Finally, the sensor was successfully employed in real samples with satisfactory recovery rates.engJournal article10.1016/j.foodchem.2025.146764WOS:001609649500003MEDLINE:41172687