中山大学学报（自然科学版）（中英文）2025，Vol.64Issue(5)：25-34,10.DOI:10.13471/j.cnki.acta.snus.ZR20250072
双发射室温长余辉比率纳米探针在Ce(Ⅳ)检测中的应用
Development of dual-emission room-temperature afterglow ratiometric nanoprobes for Ce(Ⅳ)determination
摘要
Abstract
Cerium(Ce),the most abundant rare earth element in the lanthanide series,is widely utilized in catalysis,polishing,and functional materials.However,excess Ce(Ⅳ)could induce hepatorenal toxicity,hematological disorders,and increased carcinogenic risks.Current Ce(Ⅳ)detection methods predominantly rely on expensive analytical instruments and complex sample pretreatment procedures,while conventional fluorescence analysis suffers from severe interference by the autofluorescence of Ce(Ⅲ).To address these challenges,we developed an innovative room-temperature afterglow nanoprobe(IPA@NP)using a facile one-pot hydrothermal synthesis with isophthalic acid as the sole precursor.The IPA@NP exhibits unique dual-emission afterglow characteristics,displaying two distinct peaks at 385 nm and 502 nm under 300 nm excitation,with naked-eye-visible afterglow persisting for 6 s post-UV cessation.Notably,Ce(IV)induces concentration-dependent quenching of both afterglow emissions.Leveraging this phenomenon,we established the self-calibrated ratiometric afterglow sensing platform for Ce(IV),which offers three key advantages over conventional methods:(1)Dual-channel ratiometric detection enhances quantitative accuracy;(2)Afterglow signals eliminate interference from Ce(Ⅲ)and other fluorophores;(3)"Zero-background"detection achieves ultrahigh sensitivity.Under optimized conditions,the proposed method exhibits a linear detection range of 8.00×10-6 to 1.00×10-4 mol/L with the limit of detection(LOD)as low as 1.67×10-6 mol/L(3σ/k).The proposed assay exhibits exceptional anti-interference capability and stability,enabling accurate Ce(Ⅳ)quantification in real water samples.This work provides a promising tool for Ce(Ⅳ)analysis in real sample,opening new avenues for rare earth element detection with minimized matrix effects.关键词
室温长余辉材料/Ce(Ⅳ)/间苯二甲酸/比率型探针Key words
room-temperature afterglow materials/Ce(Ⅳ)/isophthalic acid/ratiometric probe分类
化学化工引用本文复制引用
张越诚,张诗雨,张雅蓉,李淼,杨帆,孙凌波,马红燕..双发射室温长余辉比率纳米探针在Ce(Ⅳ)检测中的应用[J].中山大学学报（自然科学版）（中英文）,2025,64(5):25-34,10.基金项目
国家自然科学基金(22264023) （22264023）
陕西省科技厅科研计划项目(2024JC-YBQN-0150) （2024JC-YBQN-0150）
延安市科研计划项目(2023-SFGG-057) （2023-SFGG-057）
陕西省教育厅科研计划项目(22JK0614) （22JK0614）
延安大学博士科研启动基金(YDBK2022-15) （YDBK2022-15）
