Lotus seedpods biochar decorated molybdenum disulfide for portable, flexible, outdoor and inexpensive sensing of hyperin

Liangmei Rao; Yifu Zhu; Zhongshu Duan; Ting Xue; Xuemin Duan; Yangping Wen; Annamalai Senthil Kumar; Weiming Zhang; Jingkun Xu; Akbar Hojjati-Najafabadi

doi:10.1016/j.chemosphere.2022.134595

Lotus seedpods biochar decorated molybdenum disulfide for portable, flexible, outdoor and inexpensive sensing of hyperin

Chemosphere. 2022 Aug:301:134595. doi: 10.1016/j.chemosphere.2022.134595. Epub 2022 Apr 12.

Authors

Affiliations

¹ Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, 330013, PR China; Institute of Functional Materials and Agricultural Applied Chemistry, Jiangxi Agricultural University, Nanchang, 330045, PR China.
² Institute of Functional Materials and Agricultural Applied Chemistry, Jiangxi Agricultural University, Nanchang, 330045, PR China.
³ Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, 330013, PR China. Electronic address: duanxuemin@126.com.
⁴ Institute of Functional Materials and Agricultural Applied Chemistry, Jiangxi Agricultural University, Nanchang, 330045, PR China. Electronic address: wenyangping1980@jxau.edu.cn.
⁵ Nano and Bioelectrochemistry Research Laboratory, Carbon Dioxide Research and Green Technology Centre, Vellore Institute of Technology University, Vellore, 632014, India.
⁶ Flexible Electronics Innovation Institute, Jiangxi Science & Technology Normal University, Nanchang, 330013, PR China; College of Chemistry and Molecular Engineering, Qingdao University of Science & Technology, Qingdao, 266042, PR China.
⁷ Faculty of Materials, Metallurgy and Chemistry, School of Materials Science and Engineering, Jiangxi University of Science and Technology, Ganzhou, 341000, PR China.

PMID: 35427664
DOI: 10.1016/j.chemosphere.2022.134595

Abstract

Biomass waste, a good candidate for advanced carbon materials for sustainable electrodes, is receiving more and more attention for high value-added materials because of its promising contribution to economic growth and sustainable development. We proposed a green co-hydrothermal approach to prepare lotus seedpods biochar (BC) decorated molybdenum disulfide (MoS₂) from waste lotus seedpods and precursors of MoS_2, and a portable, flexible, outdoor and inexpensive sensing platform for hyperin on the integrated flexible three-electrode using U-disk potentiostat with smartphone was successfully developed. Structure and properties of MoS₂-BC were characterized, it was proved that BC improves microstructure and morphology, electronic conductivity, electrode stability and electrocatalytic properties of MoS₂. Attributing to these impressive features, the detection signal of hyperin was significantly amplified by the MoS₂-BC modified glass carbon electrode (GCE) in detection range of 0.01-21 μΜ with detection limit (LOD) of 5 nM. It was worth mentioning that the MoS₂-BC modified screen-printed electrode (SPE) performs hyperin detection in range of 100 nM - 3 μM with LOD 50 nM (S/N = 3). The practicability of the proposed method confirmed that the portable, on-site, low-cost, and outdoor detection of hyperin was feasible and practical in comparison with traditional both electrochemical sensing and HPLC methods.

Keywords: Biochar; Electrochemical sensor; Hyperin; Portable potentiostat; Smartphone.

MeSH terms

Carbon
Charcoal*
Disulfides / chemistry
Electrochemical Techniques
Electrodes
Limit of Detection
Lotus* / chemistry
Molybdenum* / chemistry
Quercetin* / analogs & derivatives
Quercetin* / analysis
Seeds* / chemistry

Substances

Disulfides
biochar
Charcoal
Carbon
Molybdenum
hyperoside
Quercetin
molybdenum disulfide