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首页> 外文期刊>RSC Advances >Imprinted photonic hydrogel pillar for self-reporting water treatment of heavy metal ions
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Imprinted photonic hydrogel pillar for self-reporting water treatment of heavy metal ions

机译：压印光子水凝胶柱，用于自报告水处理重金属离子

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摘要

We demonstrate here a general protocol to prepare a self-reporting water treatment to remove heavy metal ions via an imprinted photonic hydrogel. The interconnected porous photonic layer with a photonic crystal structure on the surface of the hydrogel pillars can self-indicate the variation of the treatment's adsorbing capacity by changing colour and increase the adsorption efficiency of the hydrogel pillars. Ion-imprinting technology was applied to improve the adsorption capacity of the hydrogel pillars. The Pb(II) ion was chosen as the preliminary case to verify the properties of the imprinted photonic hydrogel pillars. Studies were then performed utilizing Cu(II) and Zn(II) ions to corroborate the initial findings. The Ag(I) ion was a special sample of an oxidizing metal ion which can be reduced by the hydrogel. To investigate the universality of the adsorbent, we conducted similar experiments on Ni(II), Mn(II), Co(II), and Sn(II) ions. Furthermore, the used hydrogel pillars were proved to be recovered by eluting the ions. This protocol provides a promising contaminated water treatment with properties of self-reporting and high efficiency for the removal of heavy metal ions.
机译：我们在这里展示了准备自报告水处理以通过印迹光子水凝胶去除重金属离子的一般方案。在水凝胶柱的表面上具有光子晶体结构的互连的多孔光子层可以通过改变颜色来自指示处理剂的吸附能力的变化，并增加水凝胶柱的吸附效率。离子压印技术被用来提高水凝胶柱的吸附能力。选择Pb（II）离子作为验证印记光子水凝胶柱特性的初步案例。然后利用Cu（II）和Zn（II）离子进行了研究，以证实最初的发现。 Ag（I）离子是一种特殊的氧化金属离子样品，可被水凝胶还原。为了研究吸附剂的通用性，我们对Ni（II），Mn（II），Co（II）和Sn（II）离子进行了类似的实验。此外，已证明通过洗脱离子可回收使用过的水凝胶柱。该协议提供了一种有前途的污水处理技术，具有自我报告的特性和去除重金属离子的高效率。

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