Nano/Mesoporous Carbon from Rice Starch for Voltammetric Detection of Ascorbic Acid

Molecules

Farzana Darain¹  David James Young²  Mohammad A. Wahab²  Nazrul Islam³ 

[1] Australian Institute for Bioengineering and Nanotechnology (AIBN), University of Queensland, St Lucia, QLD 4072, Australia;Faculty of Science, Health, Education and Engineering, University of the Sunshine Coast, Maroochydore DC, QLD 4558, Australia;Pharmacy Discipline, Faculty of Health, School of Clinical Sciences, QUT, 2 George Street, Brisbane, QLD 4000, Australia;

关键词: mesoporous carbon;    carbon;    rice starch;    biomass;    electroanalysis;    ascorbic acid;    electrode;    glass carbon electrode;    nanomaterials;   

DOI  :  10.3390/molecules23020234

来源: DOAJ

【 摘 要 】

Rice starch (RS-)based nano/mesoporous carbon (RSNMC) was prepared via a hard-templating route using cheap rice starch as a carbon source. XRD and TEM characterization indicated the formation of organized nanoporous RSNMC. Nitrogen absorption–desorption studies revealed a high surface area of up to 488 m2∙g−1, uniform pore size of 3.92 nm, and pore volume of 1.14 cm3∙g−1. A RSNMC-modified glassy carbon (GC) electrode was employed for the determination of ascorbic acid (AA) and exhibited a linear response in the concentration range of 0.005–6.0 mM with a detection limit of 0.003 mM. These results demonstrate that RSNMC has potential as an advanced and cheap electrode material for electrochemical sensing and other electrocatalytic applications.

【 授权许可】

Unknown