Title
Lignosulfonate-assisted synthesis of platinum nanoparticles deposited on multi-walled carbon nanotubes for biosensing of glucose
Authors
[ 1 ] Instytut Chemii i Elektrochemii Technicznej, Wydział Technologii Chemicznej, Politechnika Poznańska | [ 2 ] Wydział Technologii Chemicznej, Politechnika Poznańska | [ D ] phd student | [ P ] employee | [ SzD ] doctoral school student
Scientific discipline (Law 2.0)
Year of publication
2022
Published in
Article type
scientific article
Publication language
english
Keywords
EN
- Platinum nanoparticles
- Multi-walled carbon nanotubes
- Lignosulfonate
- Electrocatalysis
- Glucose biosensor
Abstract
EN It is presented in this work that lignosulfonate (LS) can be preferentially adsorbed on the surface of multi-walled carbon nanotubes (MWCNT) giving rise to the functional platform for platinum nanoparticles (NPt) deposition. The novel MWCNT/LS/NPt hybrid material has been characterized by X-ray diffraction (XRD), Fourier transformation infrared spectroscopy (FT-IR), X-ray photoelectron spectroscopy (XPS). The morphology of the MWCNT/LS/NPt electrodes has been investigated by atomic force microscopy (AFM). The electrochemical studies of MWCNT/LS/NPt hybrid material revealed strong electrocatalytic properties towards hydrogen peroxide. In addition, the effects of lignosulfonate amount adsorbed at the MWCNT on the voltammetric response of the hydrogen peroxide were discussed and used to select the optimal and effective conditions for the synthesis of the electrode material. An amperometric biosensor for glucose was developed based on the covalent linkage of glucose oxidase (GOx) at the MWCNT/LS/NPt. The enzyme electrode exhibited excellent electrocatalytic activity and rapid response for glucose. The linear range of the glucose determination was 50–1400 µM and LOD was quantified as 15.67 µM.
Pages (from - to)
112221-1 - 112221-9
Comments
Article number: 112222
Ministry points / journal
100
Impact Factor
5,8
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