Naturally manufactured biochar materials based sensor electrode for the electrochemical detection of polystyrene microplastics.

Autor: Kim SA; Advanced Radiation Technology Institute (ARTI), Korea Atomic Energy Research Institute, Jeongeup 56212, Republic of Korea; Department of Nuclear Engineering, Hanyang University, Wangsimni-ro, Seongdong-gu, Seoul 222, Republic of Korea. Electronic address: shin-aekim8ujikmn@gmail.com., Kim EB; Advanced Materials and Devices Laboratory, Department of Bio-Convergence Science, Jeonbuk National University, Jeongeup 56212, Republic of Korea. Electronic address: keb821@naver.com., Imran M; Advanced Materials and Devices Laboratory, Department of Bio-Convergence Science, Jeonbuk National University, Jeongeup 56212, Republic of Korea. Electronic address: imran_ahmed5g6d4@gmail.com., Shahzad K; Advanced Radiation Technology Institute (ARTI), Korea Atomic Energy Research Institute, Jeongeup 56212, Republic of Korea; Radiation Science, University of Science and Technology, Daejeon 34113, Republic of Korea. Electronic address: shah_khurram8o9ik@gmail.com., Moon DH; Department of Environmental Engineering, Chosun University, Gwangju 61452, Republic of Korea. Electronic address: hyunmoon96deok4r@gmail.com., Akhtar MS; Graduate School of Integrated Energy-AI, Jeonbuk National University, Jeonju, 54896, Republic of Korea; Department of JBNU-KIST Industry-Academia Convergence Research, Jeonbuk National University, Jeonju, 54896, Republic of Korea. Electronic address: shaheerakhtar@jbnu.ac.kr., Ameen S; Advanced Materials and Devices Laboratory, Department of Bio-Convergence Science, Jeonbuk National University, Jeongeup 56212, Republic of Korea. Electronic address: sadiaameen@jbnu.ac.kr., Park SH; Advanced Radiation Technology Institute (ARTI), Korea Atomic Energy Research Institute, Jeongeup 56212, Republic of Korea; Radiation Science, University of Science and Technology, Daejeon 34113, Republic of Korea. Electronic address: parksh@kaeri.re.kr.
Jazyk: angličtina
Zdroj: Chemosphere [Chemosphere] 2024 Mar; Vol. 351, pp. 141151. Date of Electronic Publication: 2024 Jan 08.
DOI: 10.1016/j.chemosphere.2024.141151
Abstrakt: In recent times, microplastics have become a disturbance to both aquatic and terrestrial ecosystems and the ingestion of these particles can have severe consequences for wildlife, aquatic organisms, and even humans. In this study, two types of biochars were manufactured through the carbonization of naturally found starfish (SF-1) and aloevera (AL-1). The produced biochars were utilized as sensing electrode materials for the electrochemical detection of ∼100 nm polystyrene microplastics (PS). SF-1 and AL-1 based biochars were thoroughly analyzed in terms of morphology, structure, and composition. The detection of microplastics over biochar based electrodes was carried out by electrochemical studies. From electrochemical results, SF-1 based electrode exhibited the detection efficiency of ∼0.2562 μA/μM∙cm 2 with detection limit of ∼0.44 nM whereas, a high detection efficiency of ∼3.263 μA/μM∙cm 2 was shown by AL-1 based electrode and detection limit of ∼0.52 nM for PS (100 nm) microplastics. Process contributed to enhancing the sensitivity of AL-1 based electrode might associate to the presence of metal-carbon framework over biochar's surfaces. The AL-1 biochar electrode demonstrated excellent repeatability and detection stability for PS microplastics, suggesting the promising potential of AL-1 biochar for electrochemical microplastics detection.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2024 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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