Application of pyrite and chalcopyrite as sensor electrode for amperometric detection and measurement of hydrogen peroxide.
RSC Adv
; 8(9): 5013-5019, 2018 Jan 24.
Article
en En
| MEDLINE
| ID: mdl-35539526
ABSTRACT
The sensing performance of solid-state amperometric sensors based on natural sulfide minerals, i.e., pyrite and chalcopyrite, has been characterized for the detection and measurement of hydrogen peroxide (H2O2) in aqueous medium. The sensors showed a wide linear relationship range between response current and the concentration of H2O2 from 1.0 × 10-5 mol L-1 to 1.0 × 10-2 mol L-1 and 1.0 × 10-4 mol L-1 to 3.0 × 10-2 mol L-1 for pyrite and chalcopyrite, respectively. The limit of detection (LOD) was as low as 8.6 × 10-6 mol L-1 and 5.2 × 10-5 mol L-1 (S/N = 3), respectively. The electrodes exhibited great sensitivity, repeatability and short response time (less than 5 s). The results show that pyrite and chalcopyrite can be used as a natural, low cost, reliable and sensitive sensor for hydrogen peroxide detection, creating a new and high value application for the sulfide minerals.
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Tipo de estudio:
Diagnostic_studies
Idioma:
En
Revista:
RSC Adv
Año:
2018
Tipo del documento:
Article