Electrochemical sensing of bisphenol A on single‐walled carbon nanotube paper electrodes

Abstract

The electrochemical detection of BPA often requires modification of electrodes to overcome BPA′s slower kinetics and higher oxidation potential. This work reports a modification‐free, paper electrode based on vacuum‐filtered SWCNT thin film. The prepared electrode does not need to be polished or transferred into the conducting substrates. The linear sweep voltammetric detection showed a linear response from 0.5–10 μM and 25–100 μM with the experimental LOD of 1.0 μM (S/N=3). The interference study and good recovery percentage (93–105 %) in real water samples demonstrated the method‘s selectivity. The sensor can be promising for developing a simple, low‐cost, portable, and paper‐based BPA monitoring system.

Preparation of Au nanoparticles via anodic stripping of underpotential deposition-Cu in bulk electrodeposition-Au for high-performance electrochemical sensing of bisphenol A

“…Therefore, further improving the utilization of gold and its electrocatalytic/electroanalysis performance on the electrode surface are signi cant in the eld. In addition, carbon nanotubes and its composites have been exploited broadly for electrochemical sensing of BPA because of their low-cost, facility of modi cation and favourable electrochemical properties [11,[17][18][19][20]. Generally, increasing the electrochemical reaction rate between the analyte and electrode interface can substantially improve the current signal, response speed and sensitivity obtained in electroanalysis, which is dependent on the development and innovation of electrocatalyst.…”

Preparation of Gold Nanoparticles via Anodic Stripping of Copper Underpotential Deposition in Bulk Gold Electrodeposition for High-Performance Electrochemical Sensing of Bisphenol A

“…Therefore, it is significant to reduce the usage and improve the electrocatalytic/electroanalysis performance of gold on the electrode surface. Carbon nanotubes and their composites have been exploited broadly for the electrochemical sensing of BPA because of their low cost, feasibility of modification, and favorable electrochemical properties [14,[20][21][22][23]. Generally, the current signal, response speed, and sensitivity will be increased during electroanalysis if the electrochemical reaction rate between the analyte and electrode interface can be substantially improved, which is heavily dependent on the development and innovation of electrocatalysts.…”