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α‐Fe 2 O 3 Film with Highly Photoactivity for Non‐enzymatic Photoelectrochemical Detection of Glucose
Author(s) -
Liu Fuyan,
Wang Peng,
Zhang Qianqian,
Wang Zeyan,
Liu Yuanyuan,
Zheng Zhaoke,
Qin Xiaoyan,
Zhang Xiaoyang,
Dai Ying,
Huang Baibiao
Publication year - 2019
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.201900133
Subject(s) - detection limit , amperometry , selectivity , reproducibility , linear range , materials science , spin coating , linear relationship , analytical chemistry (journal) , coating , electrochemistry , chemistry , nanotechnology , chromatography , electrode , catalysis , organic chemistry , mathematics , statistics
A non‐enzyme photoelectrochemical (PEC) glucose sensor based on α‐Fe 2 O 3 film is investigated. The α‐Fe 2 O 3 film was fabricated via a simple spin coating method. The proposed glucose sensor exhibits good selectivity, a fast response time of <5 s, a linear range of 0.05 to 6.0 mM, sensitivity of 17.23 μA mM −1 cm −2 and a detection limit of 0.05 μM. Meanwhile, the excellent performances of the α‐Fe 2 O 3 sensor were obtained in reproducibility and the long‐term stability under ambient condition. The linear amperometric response of the sensor covers the glucose levels in physiological and clinical for diabetic patients. Therefore, this non‐enzyme PEC sensor based on α‐Fe 2 O 3 film has a great potential application in the development of glucose sensors.