Revitalizing E-waste: Eco-friendly electrochemical sensor for Hg(II) detection enhanced by oxygen vacancy in metal oxide nanostructures based on recycled LCD

IF 7.1 3区材料科学 Q1 GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY Materials Today Sustainability Pub Date : 2024-10-22 DOI:10.1016/j.mtsust.2024.101015

Maroua Saadaoui , Assem T. Mohamed , Abdul Hakeem Anwer , Siham Y. Al-Qaradawi , Mazen Khaled , Abdelbaki Benamor

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Abstract

In the current work, an innovative eco-friendly sensor using ceria integrated cobalt oxide nanosheets immobilized on LCD monitor (Ce@Co-EcoR) recycled from E-waste is presented. The Ce@Co-EcoR nanocomposite was thoroughly investigated using appropriate characterization techniques. This nanostructured electrode was employed to construct an electrochemical sensor to detect mercury. It showed a very low detection limit of 2.8 ppb, a wide detection ranges from 16 to 620 ppb, and a good sensitivity of 158.28 μA cm².ppm⁻¹. The sensor applicability was verified by performing interference, repeatability, stability studies. It was also applied to control the purity of sea water. This work underscores the potential of incorporating recycled materials onto sensor technology, not only to control environmental pollution, but also to promote sustainable practices in scientific innovation.

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振兴电子废物：基于回收液晶显示器的金属氧化物纳米结构中的氧空位增强了用于检测汞（II）的生态友好型电化学传感器

在当前的工作中，介绍了一种创新的生态友好型传感器，该传感器使用固定在从电子垃圾中回收的液晶显示器上的铈集成氧化钴纳米片（Ce@Co-EcoR）。采用适当的表征技术对 Ce@Co-EcoR 纳米复合材料进行了深入研究。这种纳米结构的电极被用来构建电化学传感器以检测汞。其检测限低至 2.8 ppb，检测范围宽至 16 至 620 ppb，灵敏度高达 158.28 μA cm2.ppm-1。通过干扰、重复性和稳定性研究，验证了传感器的适用性。它还被用于控制海水的纯度。这项工作强调了将回收材料应用于传感器技术的潜力，不仅可以控制环境污染，还可以促进科学创新的可持续发展。

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来源期刊

Materials Today Sustainability Multiple-

CiteScore

5.80

自引率

6.40%

发文量

174

审稿时长

32 days

期刊介绍： Materials Today Sustainability is a multi-disciplinary journal covering all aspects of sustainability through materials science. With a rapidly increasing population with growing demands, materials science has emerged as a critical discipline toward protecting of the environment and ensuring the long term survival of future generations.