Skip to Main content Skip to Navigation
Journal articles

In situ electrochemical synthesis of graphene-poly(arginine) composite for p-nitrophenol monitoring

Abstract : Para-Nitrophenol (p-nitrophenol) is a common industrial pollutant occurring widely in water bodies, yet actual monitoring methods are limited. Herein we proposed a fully electrochemically in situ synthesized graphenepolyarginine composite functionalized screen printed electrode, as a novel p-nitrophenol sensing platform. The electrode was characterized by morphologic, spectrometric and electrochemical techniques. p-Nitrophenol in both pure aqueous solution and real water samples was tested. Results show a detection limit as low as the nanomolar level, and display a linear response and high selectivity in the range of 0.5-1250 μM. Molecular simulation reveals a detailed synergy between graphene and poly-arginine. The preferable orientation of nitrophenol molecules on the graphene interface in the presence of poly-arginine induces Hand ionic binding. This sensor is an ideal prototype for p-nitrophenol quantification in real waters.
Complete list of metadata

https://hal.archives-ouvertes.fr/hal-03311536
Contributor : Eric Lichtfouse Connect in order to contact the contributor
Submitted on : Sunday, August 1, 2021 - 11:57:39 AM
Last modification on : Tuesday, October 19, 2021 - 10:35:24 PM

File

 Restricted access
To satisfy the distribution rights of the publisher, the document is embargoed until : 2022-04-24

Please log in to resquest access to the document

Identifiers

Collections

Citation

Yiwei Li, Yaohong Ma, Eric Lichtfouse, Jin Song, Rui Gong, et al.. In situ electrochemical synthesis of graphene-poly(arginine) composite for p-nitrophenol monitoring. Journal of Hazardous Materials, Elsevier, 2022, 421, pp.126718. ⟨10.1016/j.jhazmat.2021.126718⟩. ⟨hal-03311536⟩

Share

Metrics

Record views

590