期刊
NANOSCALE ADVANCES
卷 2, 期 9, 页码 4242-4250出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d0na00172d
关键词
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资金
- DST-SERB, New Delhi [ECR/2017/001758]
- DST-Inspire Fellowship [IF170687]
- DST-SERB National Post-Doctoral Fellowship [PDF/2019/001764]
- DST-Inspire faculty award [DST/INSPIRE/04/2015/002259]
A nickel sulfide-incorporated sulfur-doped graphitic carbon nitride (NiS/S-g-C3N4) nanohybrid was utilized as an interface material for the non-enzymatic sensing of glucose in an alkaline medium (0.1 M NaOH). The precursors used in the preparation of NiS/S-g-C3N4 hybrid were thiourea and nickel nitrate hexahydrate as the sulfur and nickel sources, respectively. The HRTEM results reveal that NiS nanoparticles incorporated on the S-g-C(3)N(4)nanosheet surface could enhance the electrocatalytic activity and electrical conductivity. The prepared NiS/S-g-C3N4 crystalline nature, surface functionalities, graphitic nature, thermal stability and surface composition were investigated using XRD, FT-IR, Raman spectroscopy, TGA and XPS analyses. The NiS/S-g-C3N4 modified electrode was used for the non-enzymatic sensing of glucose at an applied potential of 0.55 Vvs.Ag/AgCl with a detection limit of 1.5 mu M (S/N = 3), sensitivity of 80 mu A mM(-1)cm(-2)and the response time of the fabricated sensor was close to 5 s. Different inorganic ions and organic substances did not interfere during glucose sensing. The NiS/S-g-C3N4 nanohybrid material could be extended for a real sample analysis and open the way for diverse opportunities in the electrochemical sensing of glucose.
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