Electrochemically driven introduction of copper ions into the ring of 5,10,15,20-tetraphenyl-21H, 23H-porphyrin mechanically attached as solid microparticles to a graphite electrode

Copper is a common element in the environment and human body. Exposure to high concentrations of Cu2+ potentially causes health issues, such as Wilson and Alzheimer’s diseases. It is of great importance for the highly selective and sensitive detection of Cu2+. In this work, a porous metal–organic framework (MOF), PCN222, is employed for the selective and sensitive determination of Cu2+. The selectivity of PCN222 relies on the interaction between Cu2+ and the porphyrin core of PCN222. PCN222 stacked with porphyrin rings exhibits solvent adaptability, which overcomes the drawback of the natural porphyrinic enzyme (such as HRP). PCN222 is used for constructing a sensor which shows a linear range of Cu2+ concentration from 0.4 to 13 μmol L–1, and its limit of detection (LOD) is 50 nmol L–1. The response time is less than 3 s, which is faster than previous methods. This work opens up a new route to MOF applications in the detection of metal ions in complex environments.

show abstract

“…At such low potential (−0.07 V), only Cu 2+ can be reduced by the PCN222-based sensor. It is consistent with the literature. − …”

Section: Resultssupporting

confidence: 93%

Selective Sensing of Copper Ions by Mesoporous Porphyrinic Metal–Organic Framework Nanoovals

Meng

Cao

et al. 2019

Anal. Chem.

View full text Add to dashboard Cite

show abstract

Solid‐State Electrochemical Reactions of Electroactive Microparticles and Nanoparticles in a Liquid Electrolyte Environment

Hermes

Scholz

2009

Solid State Electrochemistry I

View full text Add to dashboard Cite

Many electrochemical conversions of solid compounds and materials, including for example the corrosion of metals and alloys or the electrochemical conversions of most battery materials, take place within a liquid electrolyte environment, with the classic approach to investigation comprising macro-sized electrodes. However, in order to obtain a comprehensive understanding of the mechanism of these solid-state electrochemical reactions, the simple technique of immobilizing small amounts of a solid compound/material on an inert electrode surface provides an easy, yet sometimes exclusive, access to their study. In this chapter is presented a survey of the recent developments of this approach, which is referred to as the voltammetry of immobilized microparticles (VIM). Attention is also focused on progress in the field of theoretical descriptions of solid-state electrochemical reactions.

show abstract

meso,meso‐Linked and Triply Fused Diporphyrins with Mixed‐Metal Ions: Synthesis and Electrochemical Investigations

et al. 2007

View full text Add to dashboard Cite

Keywords: Diporphyrins / Electrochemistry / UV/Vis spectroscopy / Electrostatic interactions / ConjugationA novel series of biaryl-type, meso,meso-linked and planar, triply fused diporphyrin derivatives was prepared and fully characterized together with the corresponding monoporphyrin control compounds. They feature peripheral meso-3-cyanophenyl and meso-3,5-cyanophenyl groups, which have previously been shown to undergo transformation into malonates without perturbation of the porphyrin core and subsequent Bingel addition to fullerene C 60 . The tetrapyrrolic metal binding sites in the diporphyrin arrays are either complexed to two Zn II or Cu II ions, or, in a mixed coordination, to one Cu II and one Zn II ion; alternatively, one or both sites remain unoccupied. The interaction between the differen-

show abstract

Electrochemically driven introduction of copper ions into the ring of 5,10,15,20-tetraphenyl-21H, 23H-porphyrin mechanically attached as solid microparticles to a graphite electrode

Cited by 10 publications

References 25 publications

Selective Sensing of Copper Ions by Mesoporous Porphyrinic Metal–Organic Framework Nanoovals

Selective Sensing of Copper Ions by Mesoporous Porphyrinic Metal–Organic Framework Nanoovals

Solid‐State Electrochemical Reactions of Electroactive Microparticles and Nanoparticles in a Liquid Electrolyte Environment

meso,meso‐Linked and Triply Fused Diporphyrins with Mixed‐Metal Ions: Synthesis and Electrochemical Investigations

Contact Info

Product

Resources

About