Growth of cerium metal-organic framework in situ on MXene: An electrochemical sensing interface for simultaneous detection of acetaminophen and p-aminophenol

IF 7.2 2区 工程技术 Q1 ENGINEERING, CHEMICAL
Zeyun Yang, Hao Guo, Zhiguo Yu, Lei Sun, Ruixue Yan, Wenting Niu, Jianpeng Ma, Yu Yan, Wu Yang
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Abstract

Para-aminophenol (4-AP) is the toxic hydrolysate of the pharmaceutical molecule p-acetaminophen (ACOP) and their overexposure is harmful to ecological environment and physical health, So, designing a reasonable and efficient sensing platform for simultaneous detection of the trace targets is urgent. In this study, a novel electrochemical sensing interface was constructed for simultaneous detection of ACOP and 4-AP by in-situ growth of a flat rod-like lanthanide metal-organic framework Ce-MOF on MXene materials. 2D MXene nanosheets improved the conductivity and dispersion of the composites while Ce-MOF provided abundant adsorption sites and big specific surface area, thus significantly amplifying the electrochemical response signal. Post-oxidation of Ce-MOF induced electrocatalytic active Ce3 + /Ce4+ centers. As a result, the electrochemical sensor exhibited a wide linear range of 0.6 ∼ 360 μM and low detection limits (0.023 and 0.031 μM) for 4-AP and ACOP determination as well as satisfactory repeatability, stability and selectivity, and achieved accurate and synchronous detection of ACOP and 4-AP in actual tablets and environmental water samples.
铈金属-有机骨架在MXene上原位生长:同时检测对乙酰氨基酚和对氨基酚的电化学传感界面
对氨基酚(4-AP)是药物分子对乙酰氨基酚(ACOP)的毒性水解产物,过量暴露对生态环境和人体健康有害,因此设计合理、高效的同时检测痕量靶点的传感平台迫在眉睫。在本研究中,通过在MXene材料上原位生长扁平棒状镧系金属-有机骨架Ce-MOF,构建了一种新的电化学传感界面,用于同时检测ACOP和4-AP。二维MXene纳米片提高了复合材料的导电性和分散性,而Ce-MOF提供了丰富的吸附位点和大的比表面积,从而显著放大了电化学响应信号。Ce-MOF后氧化诱导电催化活性Ce3 + /Ce4+中心。结果表明,该电化学传感器测定4-AP和ACOP的线性范围为0.6 ~ 360 μM,检出限为0.023和0.031 μM,具有良好的重复性、稳定性和选择性,可实现实际片剂和环境水样中ACOP和4-AP的准确、同步检测。
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来源期刊
Journal of Environmental Chemical Engineering
Journal of Environmental Chemical Engineering Environmental Science-Pollution
CiteScore
11.40
自引率
6.50%
发文量
2017
审稿时长
27 days
期刊介绍: The Journal of Environmental Chemical Engineering (JECE) serves as a platform for the dissemination of original and innovative research focusing on the advancement of environmentally-friendly, sustainable technologies. JECE emphasizes the transition towards a carbon-neutral circular economy and a self-sufficient bio-based economy. Topics covered include soil, water, wastewater, and air decontamination; pollution monitoring, prevention, and control; advanced analytics, sensors, impact and risk assessment methodologies in environmental chemical engineering; resource recovery (water, nutrients, materials, energy); industrial ecology; valorization of waste streams; waste management (including e-waste); climate-water-energy-food nexus; novel materials for environmental, chemical, and energy applications; sustainability and environmental safety; water digitalization, water data science, and machine learning; process integration and intensification; recent developments in green chemistry for synthesis, catalysis, and energy; and original research on contaminants of emerging concern, persistent chemicals, and priority substances, including microplastics, nanoplastics, nanomaterials, micropollutants, antimicrobial resistance genes, and emerging pathogens (viruses, bacteria, parasites) of environmental significance.
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