期刊
FRONTIERS IN CHEMISTRY
卷 10, 期 -, 页码 -出版社
FRONTIERS MEDIA SA
DOI: 10.3389/fchem.2022.939510
关键词
vertically-ordered mesoporous silica films; boron nitride; graphene; carbendazim; electrochemical sensors; anti-fouling detection
资金
- National Natural Science Foundation of China [21904117, 82074574, 81774445]
- Zhejiang Provincial Natural Science Foundation of China [LY20B050007, LY21B050003]
In this study, the stable growth of vertically-ordered mesoporous silica films (VMSF) on the glassy carbon electrode (GCE) using boron nitride-reduced graphene oxide (BN-rGO) nanocomposite is reported for the detection of Carbendazim (CBZ). The proposed VMSF/BN-rGO/GCE shows high sensitivity, wide linear range, and low limit of detection for CBZ. Moreover, the VMSF/BN-rGO/GCE allows for direct and rapid electrochemical analysis of CBZ in pond water and grape juice samples without complicated sample treatment processes.
Carbendazim (CBZ), a kind of widely used pesticide, is harmful to human health and environmental ecology. Therefore, it is of great importance to detect CBZ in real samples. Herein we report the stable growth of vertically-ordered mesoporous silica films (VMSF) on the glassy carbon electrode (GCE) using boron nitride-reduced graphene oxide (BN-rGO) nanocomposite as an adhesive and electroactive layer. Oxygen-containing groups of rGO and 2D planar structure of BN-rGO hybrid favor the stable growth of VMSF via the electrochemically assisted self-assembly (EASA) method. Combining the good electrocatalytic activity of BN-rGO and the enrichment effect of VMSF, the proposed VMSF/BN-rGO/GCE can detect CBZ with high sensitivity (3.70 mu A/mu M), a wide linear range (5 nM-7 mu M) and a low limit of detection (2 nM). Furthermore, due to the inherent anti-fouling and anti-interference capacity of VMSF, direct and rapid electrochemical analyses of CBZ in pond water and grape juice samples are also achieved without the use of complicated sample treatment processes.
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