Selective and stable visible-light-prompted scavenger-free photoelectrochemical strategy based on a ternary ErVO₄/P@g-C₃N₄/SnS₂ nanocomposite for the detection of lead ions in different water samples.

IF 7.6 2区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Environmental Pollution Pub Date : 2024-09-04 DOI:10.1016/j.envpol.2024.124892

Abishek Jayapaul, Sanjay Ballur Prasanna, Lu-Yin Lin, Yeh-Fang Duann, Yu-Chien Lin, Ren-Jei Chung

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引用次数: 0

Abstract

Lead ions (Pb²⁺) are heavy metal environmental pollutants that can significantly impact biological health. In this study, the synthesis of a ternary nanocomposite, ErVO₄/P@g-C₃N₄/SnS₂, was achieved using a combination of hydrothermal synthesis and mechanical grinding. The as-fabricated photoelectrochemical (PEC) sensor was found to be an ideal substrate for Pb²⁺ detection with high sensitivity and reliability. The ErVO₄/P@g-C₃N₄/SnS₂/FTO was selected as the substrate because of its remarkable and reliable photocurrent response. The Pb²⁺ sensor exhibited a low detection limit of 0.1 pM and a broad linear range of 0.002 to 0.2 nM. Moreover, the sensor exhibited outstanding stability, selectivity, and reproducibility. In real-time applications, it exhibited stable recovery and a low relative standard deviation, ensuring reliable and accurate measurements. The as-prepared PEC sensor was highly stable for the detection of Pb²⁺ in different water samples. This promising characteristic highlights its significant potential for use in the detection of environmental pollutants.

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基于三元 ErVO4/P@g-C3N4/SnS2 纳米复合材料的选择性和稳定性可见光催化无清除剂光电化学策略，用于检测不同水样中的铅离子。

铅离子（Pb2+）是重金属环境污染物，会严重影响生物健康。本研究采用水热合成和机械研磨相结合的方法合成了一种三元纳米复合材料 ErVO4/P@g-C3N4/SnS2。研究发现，制备的光电化学（PEC）传感器是一种理想的 Pb2+ 检测基底，具有很高的灵敏度和可靠性。之所以选择 ErVO4/P@g-C3N4/SnS2/FTO 作为基底，是因为它具有显著可靠的光电流响应。Pb2+ 传感器的检测限低至 0.1 pM，线性范围宽至 0.002 至 0.2 nM。此外，该传感器还具有出色的稳定性、选择性和再现性。在实时应用中，它表现出稳定的回收率和较低的相对标准偏差，确保了测量的可靠性和准确性。制备的 PEC 传感器在检测不同水样中的 Pb2+ 时非常稳定。这一良好特性凸显了其在环境污染物检测方面的巨大应用潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Environmental Pollution 环境科学-环境科学

CiteScore

16.00

自引率

6.70%

发文量

2082

审稿时长

2.9 months

期刊介绍： Environmental Pollution is an international peer-reviewed journal that publishes high-quality research papers and review articles covering all aspects of environmental pollution and its impacts on ecosystems and human health. Subject areas include, but are not limited to: • Sources and occurrences of pollutants that are clearly defined and measured in environmental compartments, food and food-related items, and human bodies; • Interlinks between contaminant exposure and biological, ecological, and human health effects, including those of climate change; • Contaminants of emerging concerns (including but not limited to antibiotic resistant microorganisms or genes, microplastics/nanoplastics, electronic wastes, light, and noise) and/or their biological, ecological, or human health effects; • Laboratory and field studies on the remediation/mitigation of environmental pollution via new techniques and with clear links to biological, ecological, or human health effects; • Modeling of pollution processes, patterns, or trends that is of clear environmental and/or human health interest; • New techniques that measure and examine environmental occurrences, transport, behavior, and effects of pollutants within the environment or the laboratory, provided that they can be clearly used to address problems within regional or global environmental compartments.

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