title: Fabrication and characterization of a highly sensitive hydroquinone chemical sensor based on iron-doped ZnO nanorods.
abstract: Herein, we report the development of a simple and highly sensitive hydroquinone (HQ) chemical sensor based on an electrochemically activated iron-doped (Fe-doped) zinc oxide nanorod (ZnO NR) modified screen-printed electrode (SPE). The Fe-doped ZnO NRs were prepared using a hydrothermal process and their morphological, crystal, compositional and optical properties were characterized in detail. The detailed characterizations showed that the NRs are densely grown, well-crystalline and possess a wurtzite hexagonal phase. The fabricated HQ electrochemical sensor exhibited high sensitivity of 18.60 μA mM(-1) cm(-2) and a very low experimental detection limit of 0.51 μM. Our results demonstrate that simply prepared doped ZnO nanomaterials are promising candidates to fabricate highly sensitive electrochemical sensors.
authors.affiliation: Promising Centre for Sensors and Electronic Devices, Najran University, P.O. Box 1988, Najran, 11001, Kingdom of Saudi Arabia. ahmadumar786@gmail.com.
authors.forename: Ahmad
authors.initials: A
authors.lastname: Umar
authors.forename: Ali
authors.initials: A
authors.lastname: Al-Hajry
authors.forename: Rafiq
authors.initials: R
authors.lastname: Ahmad
authors.forename: S G
authors.initials: SG
authors.lastname: Ansari
authors.forename: Mohammed Sultan
authors.initials: MS
authors.lastname: Al-Assiri
authors.forename: Hamed
authors.initials: H
authors.lastname: Algarni