Engineering MOFs derived metal oxide nanohybrids: Towards electrochemical sensing of catechol in tea samples

Tayyaba Iftikhar; Ayesha Aziz; Ghazala Ashraf; Yun Xu; Guangfang Li; Tiansui Zhang; Muhammad Asif; Fei Xiao; Hongfang Liu

doi:10.1016/j.foodchem.2022.133642

Engineering MOFs derived metal oxide nanohybrids: Towards electrochemical sensing of catechol in tea samples

Food Chem. 2022 Nov 30:395:133642. doi: 10.1016/j.foodchem.2022.133642. Epub 2022 Jul 7.

Authors

Tayyaba Iftikhar¹, Ayesha Aziz², Ghazala Ashraf², Yun Xu¹, Guangfang Li¹, Tiansui Zhang¹, Muhammad Asif³, Fei Xiao⁴, Hongfang Liu⁵

Affiliations

¹ Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China.
² College of Life Science and Technology, Huazhong University of Science and Technology (HUST), Wuhan 430074, PR China.
³ Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China. Electronic address: asif83chemist@gmail.com.
⁴ Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China. Electronic address: xiaofei@hust.edu.cn.
⁵ Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China. Electronic address: liuhf@hust.edu.cn.

PMID: 35820273
DOI: 10.1016/j.foodchem.2022.133642

Abstract

In this work, we have successfully developed Cu-MOF/CuO/NiO nanocomposites (NCs) and employed as a novel electrochemical sensing platform in catechol (CC) detection. The Scanning electron microscopy (SEM) along Energy dispersive X-ray Analysis (EDX), Transmission electron microscopy (TEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS) are carried out to characterize the as-fabricated Cu-MOF/CuO/NiO NCs. Cyclic voltammetry (CV) and differential pulse voltammetry (DPV) techniques have used to obtain oxidation peak currents of CC. Glassy carbon electrode (GCE) modified with Cu-MOF/CuO/NiO has exposed the superb EC properties representing low limit of detection (LOD) of 0.0078 µM (S/N = 3). To assess the practicability of Cu-MOF/CuO/NiO based sensing medium, it has been used to detect CC from two varieties of tea, namely black and green. Thus, we anticipate that this structural integration strategy possesses encouraging application potential in sensing podium and material synthesis.

Keywords: Black and green tea; Catechol; Cu-MOF/CuO/NiO nanocomposite; Electrochemical sensor; Pollutant.

MeSH terms

Catechols
Electrochemical Techniques / methods
Electrodes
Nanocomposites* / chemistry
Oxides
Tea

Substances

Catechols
Oxides
Tea