A Novel Sensor Based on Cu2O/Mo2C@C Derived from MOF Composites for Simultaneous Detection of Catechol and Hydroquinone. Issue 12 (1st December 2022)

• Record Type: Journal Article
• Authors: Wang, Qi; Zhang, Jinjin; Liu, Wenjing; Qu, Jianying
• Is Part Of: Journal of the Electrochemical Society. Volume 169:Issue 12(2022)
• Publication Date: 2022-12-01
• Subjects: Electrochemistry -- Periodicals; 541.3705
• DOI: 10.1149/1945-7111/aca565
• Languages: English
• ISSNs: 0013-4651

Abstract

Abstract : Herein, the copper-based metal organic framework (CuBDC) modified with MoO3 nanorods uniformly distributed on its surface (MoO3 @CuBDC) was synthesized by a one-step solvothermal method, and then was treated with high temperature calcination. A series of characterizations demonstrate that MoO3 @CuBDC was transformed into a ternary composite of Cu2 O nanospheres, Mo2 C, and carbon material (Cu2 O/Mo2 C@C) after the treatment. Moreover, a novel electrochemical sensor based on Cu2 O/Mo2 C@C modified glassy carbon electrode (GCE) was constructed for simultaneous sensitive detection of catechol (CC) and hydroquinone (HQ). Due to the excellent electrocatalytic ability of Cu2 O/Mo2 C@C, the prepared sensor exhibits good electroanalytical performance, which shows good linearity in the concentration ranges of 0.50–200.00 μ M for CC and HQ with the limits of detection of 0.38 μ M and 0.13 μ M. In addition, this sensor can be used to detect CC and HQ simultaneously in real samples with satisfactory results.