https://scholars.lib.ntu.edu.tw/handle/123456789/625544
標題: | Hydrothermally constructed AgWO4-rGO nanocomposites as an electrode enhancer for ultrasensitive electrochemical detection of hazardous herbicide crisquat | 作者: | Maheshwaran S Renganathan V Chen S.-M Balaji R C. ROBERT KAO Chandrasekar N Ethiraj S Samuel M.S Govarthanan M. |
關鍵字: | Differential pulse voltammetry; Electrochemical detection; Pesticides; rGO based nanocomposite; Water treatment | 公開日期: | 2022 | 卷: | 299 | 來源出版物: | Chemosphere | 摘要: | The advancements in electrode materials with high efficiency has been prioritized to effectively monitor the presence of harmful pesticides concerning the environment. In such a way, we hydrothermally constructed a hybrid AgWO4-rGO nanocomposites for the rapid electrochemical detection of crisquat (CQT). The structural, compositional, morphological and topographical characterization for AgWO4-rGO nanocomposites is thoroughly performed to understand its electrocatalytic properties. The AgWO4-rGO nanocomposites are used as an electrode enhancer (rGO@AgWO4/GCE) for the electrochemical investigations towards CQT detection. The results indicated that the rGO@AgWO4/GCE possessed an excellent catalytic activity with a wide linear detection range 1–1108 μM coupled with an ultrasensitive limit of detection (LOD) 0.0661 μM for electrochemical CQT detection. The rGO@AgWO4/GCE CQT sensor also expressed remarkable sensitivity of 0.6306 μAμM−1cm−2 in addition to good selectivity and reproducibility. Furthermore, the commercial CQT, river water, tap water and washed vegetable water are used as a representative for real world analysis using rGO@AgWO4/GCE and results are highly appreciable for the real time CQT detection. Our work proposes a novel hybrid rGO@AgWO4 nanocomposites reinforced electrodes for ultra-trace level CQT detection with good reliability and can be advocated for real time detection of pesticides. © 2022 Elsevier Ltd |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85127106897&doi=10.1016%2fj.chemosphere.2022.134434&partnerID=40&md5=9b54b24a57476b11045cc7eee359d820 https://scholars.lib.ntu.edu.tw/handle/123456789/625544 |
ISSN: | 00456535 | DOI: | 10.1016/j.chemosphere.2022.134434 | SDG/關鍵字: | Catalyst activity; Chemical detection; Electrochemical electrodes; Herbicides; Voltammetry; Water treatment; Differential pulse voltammetry; Electrocatalytic properties; ELectrochemical detection; Electrochemical investigations; Electrode material; Higher efficiency; Hydrothermally; Linear detection ranges; RGO based nanocomposite; Ultrasensitive; Nanocomposites; ascorbic acid; carbendazim; carbofuran; crisquat; glyphosate; graphene oxide; herbicide; nanocomposite; oxygen; river water; tap water; unclassified drug; water; graphene oxide; graphite; detection method; electrode; herbicide; hydrothermal system; nanocomposite; pesticide; real time; sensor; adsorption; Article; catalysis; chemical reaction kinetics; comparative study; controlled study; electrochemical analysis; electrochemical detection; electron transport; field emission scanning electron microscopy; impedance spectroscopy; kinetic parameters; kinetics; limit of detection; oxidation; oxidation reduction potential; oxidation reduction reaction; pH; proton transport; Raman spectrometry; surface area; surface property; synthesis; water sampling; X ray diffraction; X ray photoemission spectroscopy; chemistry; electrode; procedures; reproducibility; Electrochemical Techniques; Electrodes; Graphite; Herbicides; Nanocomposites; Reproducibility of Results; Water |
顯示於: | 材料科學與工程學系 |
在 IR 系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。