Abstract
AbstractKudzu root residue is an excellent biomass carbon material that can be transformed into porous carbon through a simple two‐step process of “pre‐carbonization” followed by KOH activation. The structure of carbonized and activated kudzu root residue material was characterized through various techniques such as SEM, XRD, N2 adsorption‐desorption, XPS and Raman spectroscopy. Electrochemical measurement revealed that K‐CKR exhibited outstanding electrochemical performance, attributed to its large specific surface area, significant pore volume, and microporous‐mesoporous structure. When K‐CKR was used to modify a glassy carbon electrode (GCE) for constructing an electrochemical sensor to detect ascorbic acid (AA), it demonstrated remarkable electrochemical sensing capabilities. This included a wide linear detection range (50–1620 μM), higher sensitivity, a low detection limit (0.83 μM, S/N=3), excellent stability and interference resistance. These experimental results clearly indicate that K‐CKR is a highly promising electrode material for the development of novel electrochemical sensors.
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