Electrochemical Detection of H2O2 with SO3H-functionalized Activated Carbon/Co-B Nanocomposites
Öz
While hydrogen peroxide has been widely used in various applications ranging from pharmaceutical to clinical and environmental to food applications, its harmful effects on health are an important challenge. Therefore, the detection of H2O2 with fast, accurate, cheap, and sensitive methods is in great demand. In this work, we proposed a novel catalyst composition to construct highly sensitive H2O2 sensors. In this study, we modified the surface of commercial activated carbon with first -SO3H groups and then the amorphous cobalt-boron phase to achieve high electrocatalytic activity toward H2O2. The Co-B@AC-SO3H samples were characterized using SEM, TEM, XPS, XRD, and Raman spectroscopy. XRD results confirmed the presence of an amorphous Co-B phase and the characteristic activated carbon peaks were obtained in both XRD and Raman results. The Co-B@AC-SO3H/GCE-based sensors showed much improved sensitivity compared to AC/GCE and AC-SO3H/GCE-based counterparts. The sensors showed high storage stability and reliability in detecting H2O2 in real samples.
Anahtar Kelimeler
Active Carbon, Cobalt-Boron, Electrochemical Sensor, Hydrogen Peroxide
Destekleyen Kurum
Necmettin Erbakan Üniversitesi BAP
Proje Numarası
191219009
Kaynakça
- M. Dilsen, H.H. Ipekci, A. Uzunoglu, Inkjet printing of Pd/SO3H-modified graphene on different polymeric substrates to construct flexible electrochemical sensors, Journal of Materials Research. 38 (2023), 3572-3584. doi:10.1557/S43578-023-01086-7/METRICS
- A. Uzunoglu, H.H. Ipekci, The use of CeO2-modified Pt/C catalyst inks for the construction of high-performance enzyme-free H2O2 sensors, Journal of Electroanalytical Chemistry. 848 (2019), 113302. doi:10.1016/J.JELECHEM.2019.113302
- H.H. Ipekci, Electrochemical Dopamine Detection Using Palladium/Carbon Nano Onion Hybrids, Hittite Journal of Science and Engineering. 10 (2023), 201-209. doi:10.17350/HJSE19030000308
- H.H. Ipekci, Holey MoS2-based electrochemical sensors for simultaneous dopamine and uric acid detection, Analytical Methods. 15 (2023), 2989-2996. doi:10.1039/D3AY00573A
- P. Deng, J. Feng, J. Xiao, Y. Wei, X. Liu, J. Li, Q. He, Application of a simple and sensitive electrochemical sensor in simultaneous determination of paracetamol and ascorbic acid, Journal of The Electrochemical Society. 168 (2021,) 096501. doi:10.1149/1945-7111/ac1e59
- J. Baranwal, B. Barse, G. Gatto, G. Broncova, A. Kumar, Electrochemical sensors and their applications: A review, Chemosensors. 10 (2022). doi:10.3390/chemosensors10090363
- C. Revathi, R.T. Rajendra kumar, Chapter 7 - Enzymatic and Nonenzymatic Electrochemical Biosensors, içinde: M. Hywel, C.S. Rout, D.J.B.T.-F. and S.A. of 2D M. Late (Ed.), Woodhead Publishing Series in Electronic and Optical Materials, Woodhead Publishing, 2019: ss. 259-300. doi:10.1016/B978-0-08-102577-2.00007-5
- J. Wang, H. Kong, J. Zhang, Y. Hao, Z. Shao, F. Ciucci, Carbon-based electrocatalysts for sustainable energy applications, Progress in Materials Science. 116 (2021), 100717. doi:10.1016/j.pmatsci.2020.100717
- C.B. Jacobs, M.J. Peairs, B.J. Venton, Review: Carbon nanotube based electrochemical sensors for biomolecules, Analytica Chimica Acta. 662 (2010), 105-127. doi:10.1016/j.aca.2010.01.009
- Y. Wang, Y. Shao, D.W. Matson, J. Li, Y. Lin, Nitrogen-doped graphene and its application in electrochemical biosensing, ACS Nano. 4 (2010), 1790-1798. doi:10.1021/nn100315s