In-situ Profiling of Environmental Hazardous Sulfamethoxazole in Aquatic and Artificial Saliva samples Using Perovskite Structured Bismuth Ferrite Incorporated Halloysite Nanotubes

IF 5.9 3区材料科学 Q2 CHEMISTRY, PHYSICAL

FlatChem Pub Date : 2024-09-20 DOI:10.1016/j.flatc.2024.100749

Muthumariappan Akilarasan , Santhiyagu Sahayaraj Rex Shanlee , Shen-Ming Chen , Wasif Farooq , Pichai Christina Ruby Stella

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Abstract

Sulfamethoxazole (SMX), a widely used antibiotic, poses significant environmental and health risks due to its persistence and mobility in water systems, potentially leading to antibiotic resistance and ecological harm. Herein, we developed an electrochemical sensor based on Bismuth Ferrite (BiFeO₃)/Halloysite Nanotube (BFO/HNT) composite for sensitive and selective SMX detection. The BFO/HNT composite was synthesized via a hydrothermal method and comprehensively characterized using EDS mapping, HRTEM, XRD, FT-IR, and XPS analysis. The BFO/HNT composite enhances the sensor’s performance due to its unique properties, such as increased electrochemical surface area (ECSA) and efficient electron transfer capability. The B-cation (Fe) in the BiFeO₃ matrix plays a crucial role in boosting the electrochemical response by facilitating redox reactions. In addition, the HNTs provide a high surface area and excellent adsorption capabilities, which improve the sensor’s sensitivity by facilitating better interaction with SMX molecules. As the results, the prepared sensor demonstrates an impressive linear detection range of 0.01 to 2 µM and 22 to 122 µM, with a detection limit as low as 0.017 µM. Practical applications were validated by detecting SMX in tap water and artificial saliva, achieving high recovery rates of 98.87 % and 99.11 %.

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利用包晶结构铋铁氧体掺杂霍洛石纳米管原位分析水生样本和人工唾液样本中的环境有害物质磺胺甲噁唑

磺胺甲噁唑（SMX）是一种广泛使用的抗生素，由于其在水系统中的持久性和流动性，对环境和健康构成了重大风险，有可能导致抗生素耐药性和生态危害。在此，我们开发了一种基于铋铁氧体（BiFeO3）/海泡石纳米管（BFO/HNT）复合材料的电化学传感器，用于灵敏、选择性地检测 SMX。BFO/HNT 复合材料是通过水热法合成的，并使用 EDS 图谱、HRTEM、XRD、FT-IR 和 XPS 分析对其进行了全面表征。BFO/HNT 复合材料因其独特的性能而提高了传感器的性能，例如增加了电化学表面积（ECSA）和高效的电子传递能力。BiFeO3 基质中的 B 阳离子（Fe）通过促进氧化还原反应，在提高电化学响应方面发挥了关键作用。此外，HNT 具有高比表面积和出色的吸附能力，能更好地与 SMX 分子相互作用，从而提高传感器的灵敏度。结果表明，所制备的传感器的线性检测范围为 0.01 至 2 µM 和 22 至 122 µM，检测限低至 0.017 µM。通过检测自来水和人工唾液中的 SMX，实际应用得到了验证，回收率高达 98.87 % 和 99.11 %。

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来源期刊

FlatChem Multiple-

CiteScore

8.40

自引率

6.50%

发文量

104

审稿时长

26 days

期刊介绍： FlatChem - Chemistry of Flat Materials, a new voice in the community, publishes original and significant, cutting-edge research related to the chemistry of graphene and related 2D & layered materials. The overall aim of the journal is to combine the chemistry and applications of these materials, where the submission of communications, full papers, and concepts should contain chemistry in a materials context, which can be both experimental and/or theoretical. In addition to original research articles, FlatChem also offers reviews, minireviews, highlights and perspectives on the future of this research area with the scientific leaders in fields related to Flat Materials. Topics of interest include, but are not limited to, the following: -Design, synthesis, applications and investigation of graphene, graphene related materials and other 2D & layered materials (for example Silicene, Germanene, Phosphorene, MXenes, Boron nitride, Transition metal dichalcogenides) -Characterization of these materials using all forms of spectroscopy and microscopy techniques -Chemical modification or functionalization and dispersion of these materials, as well as interactions with other materials -Exploring the surface chemistry of these materials for applications in: Sensors or detectors in electrochemical/Lab on a Chip devices, Composite materials, Membranes, Environment technology, Catalysis for energy storage and conversion (for example fuel cells, supercapacitors, batteries, hydrogen storage), Biomedical technology (drug delivery, biosensing, bioimaging)