This essay explores the use of the sol-gel method based on the Congo-red reagent as an effective approach to create an optical sensor for the detection and tracking of Thorium(Ⅳ)(Th^(4+)).Upon exposure to a Th^(4+)-c...This essay explores the use of the sol-gel method based on the Congo-red reagent as an effective approach to create an optical sensor for the detection and tracking of Thorium(Ⅳ)(Th^(4+)).Upon exposure to a Th^(4+)-containing solution,the sensor exhibits significant absorption signal change that linearly correlates with Th^(4+)ion concentration across a wide range.It is capable of detecting Th^(4+)ion in the linear dynamic range of 1.7×10^(-8)to 1.1×10^(-3)mol/L,with a detection limit of 5.3×10^(-9)mol/L.This optode’s exceptional porous network,created through the sol-gel technique,contributes to its commendable performance,reliable repeatability,improved sensitivity,swift response time,and discerning selectivity.展开更多
文摘This essay explores the use of the sol-gel method based on the Congo-red reagent as an effective approach to create an optical sensor for the detection and tracking of Thorium(Ⅳ)(Th^(4+)).Upon exposure to a Th^(4+)-containing solution,the sensor exhibits significant absorption signal change that linearly correlates with Th^(4+)ion concentration across a wide range.It is capable of detecting Th^(4+)ion in the linear dynamic range of 1.7×10^(-8)to 1.1×10^(-3)mol/L,with a detection limit of 5.3×10^(-9)mol/L.This optode’s exceptional porous network,created through the sol-gel technique,contributes to its commendable performance,reliable repeatability,improved sensitivity,swift response time,and discerning selectivity.
