检出限
电化学
电极
剥离(纤维)
砷
材料科学
吸附
伏安法
分析化学(期刊)
化学
核化学
无机化学
色谱法
冶金
复合材料
物理化学
有机化学
作者
Luyi Chen,Ping Xiao,Bin Hu,Yiwen Wang,Jianmao Yang,Jianyun Liu
标识
DOI:10.1002/elan.202200521
摘要
Abstract 3‐dimensional (3D) Fe−Co−LDH/MXene composite was synthesized by in‐situ synthesis and assembly of Fe−Co−LDH rod around MXene under hydrothermal condition. Due to the unique 3D configuration and good conductivity, the obtained Fe−Co−LDH/MXene modified glassy carbon electrode (Fe−Co−LDH/MXene/GCE) showed excellent electrochemical activity for As(III) detection. Via square‐wave anodic stripping voltammetry, the response current on Fe−Co−LDH/MXene/GCE had good linear relationship with As(III) concentrations (1∼1000 ppt) with superior sensitivity (0.22 μA ppt −1 cm −2 ) and low detection limit (0.9 ppt). The mechanism of As(III) adsorption was demonstrated. The electrode showed excellent anti‐interference ability. Real water sample analysis demonstrated the Fe−Co−LDH/MXene/GCE was deployable in aqua‐system.
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