基于UiO-66-NH2/CPA-MA纳米复合材料的Ce4+同时去除和目视检测

IF 2.8 4区工程技术 Q2 CHEMISTRY, APPLIED

Adsorption Science & Technology Pub Date : 2021-08-13 DOI:10.21203/rs.3.rs-779280/v1

Xiao-Yue Tang, Pinghua Chen, Tao Wang, Jiezeng Ceng, Hualin Jiang

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引用次数: 2

摘要

由于稀土资源的过度开发，迫切需要有效的策略来处理稀土污染。在本研究中，成功合成了一种新型的纳米复合材料UiO-66-NH2/CPA-MA，简称UA，它可以同时去除和检测水中的Ce4+。该杂交体由UiO-66-NH2和CPA-MA组成。基于UiO-66-NH2的高吸附性能，它可以通过吸附去除高容量的Ce4+。此外，它可以根据吸附的Ce4+浓度从橄榄褐色变为浅青色，色度与Ce4+浓度呈线性关系。因此，UA可以通过Ce4+的颜色变化进行定性和定量检测。对吸附过程的动力学进行了详细的研究。仔细评估了纳米复合材料在共存系统中的抗推理能力。结果表明，UiO-66-NH2/CPA-MA具有双重功能，具有很高的处理Ce4+污染的潜力。

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Simultaneously Remove and Visually Detect Ce4+ Based On Nanocomposite of UiO-66-NH2/CPA-MA

Effective strategies to deal with rare earth pollution are urgently needed due to the overexploitation of rare earths resource. In this study, a novel nanocomposite of UiO-66-NH2/CPA-MA denoted as UA was successfully synthesized, which can simultaneously remove and detect Ce4+ in water. The hybrid consists of UiO-66-NH2 and CPA-MA. Based on the high adsorption performance of UiO-66-NH2, it can remove Ce4+ with high capacity by adsorption. Moreover, it can change its color from olive drab to light cyan depending on the adsorbed Ce4+ concentration, and the chroma is linearly related to the Ce4+ concentration. So UA can be used to qualitatively and quantitatively detect Ce4+ by its color changing. The kinetics of adsorption course were investigated in details. The anti-inference ability of the nanocomposite in co-existing systems were carefully evaluated. The results indicate that UiO-66-NH2/CPA-MA is highly potential to deal with Ce4+ pollutions due to its bi-functionality.

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来源期刊

Adsorption Science & Technology 工程技术-工程：化工

CiteScore

5.00

自引率

10.30%

发文量

181

审稿时长

4.5 months

期刊介绍： Adsorption Science & Technology is a peer-reviewed, open access journal devoted to studies of adsorption and desorption phenomena, which publishes original research papers and critical review articles, with occasional special issues relating to particular topics and symposia.