A unique bimetallic MOF derived carbon–MWCNTs hybrid structure for selective electrochemical determination of lead ion in aqueous solution

Determination of chloropropanol with an imprinted electrochemical sensor based on multi-walled carbon nanotubes/metal–organic framework composites

“…[12][13][14] To increase the surface area of the modied electrode, materials with excellent performance are usually incorporated. 15 For example, Fang et al 16 prepared MIPs/CDs graed paper-based sensors to detect 3-MCPD. But due to its paper structure, the mechanical stability of the device is weak.…”

Review—Recent Advances in Electrochemical Sensing of Lead Ion

“…Compared with single-walled tubes, the layers of multi-walled tubes can easily become trap centers to capture various defects at the beginning of formation, so the walls of multi-walled tubes are usually covered with small hole-like defects. So Zhao et al 45 used the zinc/cobalt co-centered bimetallic zeolite imidazole framework (BMZIF-67) as the framework, composited with multi-walled carbon nanotubes, prepared three-dimensional braided Co-N x -C@MWCNTs for electrochemical detection of Pb 2+ (Fig. 3).…”

“…There are also other examples, such as the abovementioned MOF material as the skeleton, which is combined with multi-walled carbon nanotubes to prepare three-dimensional braided structure Co-N x -C@MWCNTs for electrochemical detection of Pb 2+ . 45 It also uses the highly active sites for electrocatalysis provided by MOF and the properties of carbon nanotubes to enhance the conductivity of composite materials to construct composite materials with high porosity and a large number of electroactive sites and use them for electrochemical detection of Pb 2+ . Two-dimensional carbon materials.-For other two-dimensional carbon materials such as graphene and g-C 3 N 4 , they have been used in chemical and environmental analysis including heavy metal detection due to their unique advantages such as high electrocatalytic activity, low cost, and easy preparation.…”

Highly selective and sensitive fluorescent probe possessing AIEE and ICT properties for rapid detection of Pb2+ in aqueous medium and its applications in living cells

“…[ 1–5 ] Pb 2+ ion is one of the most toxic metal ions and is often encountered due to its wide distribution in the atmosphere as well as its current and previous use in batteries, gasoline and pigments, which has become one of the most threatened metal contaminants for health. [ 6–8 ] In addition, the accumulation of Pb 2+ in the body can lead to neurological, reproductive, cardiovascular and developmental disorders. [ 6,7 ] Moreover, according to the United States Centers for Disease Control, the upper limit of blood lead concentration in adults is 10 μg/dL and in children is 5 μg/dL.…”

“…[ 6–8 ] In addition, the accumulation of Pb 2+ in the body can lead to neurological, reproductive, cardiovascular and developmental disorders. [ 6,7 ] Moreover, according to the United States Centers for Disease Control, the upper limit of blood lead concentration in adults is 10 μg/dL and in children is 5 μg/dL. Therefore, it is highly desirable to develop a new structure that sensitively and selectively detects Pb 2+ below the WHO recommended limit and apply it in environmental media, especially in aqueous media.…”