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Amperometric sensing of hydrogen peroxide using a glassy cabon electode modified with silver nanoparticles on poly(alizarin yellow R) |
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| Authors: | Keying Zhang Na Zhang Li Zhang Jigui Xu Hongyan Wang Cong Wang Tao Geng |
| Affiliation: | 1. Anhui Key Laboratory of Spin Electron and Nanomaterials (Cultivating Base); Department of Chemistry-Biology, Suzhou University, Suzhou, Anhui, 234000, China 2. Department of physical education, Suzhou University, Suzhou, Anhui, 234000, China |
| Abstract: | A sensitive amperometric sensor for hydrogen peroxide (HP) was constructed that is based on a glassy carbon electrode (GCE) modified with silver nanoparticles on poly(alizarin yellow R). The polymer was electropolymerized onto the surface of the GCE by cyclic voltammetry (CV), and the AgNPs were then electrodeposited onto its surface. The electrode was characterized by scanning electron microscopy and CV, and used for amperometric determination of HP. The electrode exhibits a favorable catalytic activity towards the reduction of HP, with a linear response range from 1.0???M to 450???M and a detection limit of 0.32???M. The sensor also displays high selectivity, excellent reproducibility, and good long-term stability. Schematic representation of the preparation process of the HP sensor and catalytic activity towards HP |
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