Imprinted photonic hydrogel pillar for self-reporting water treatment of heavy metal ions

Imprinted photonic hydrogel pillar for self-reporting water treatment of heavy metal ions
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用于重金属离子自报告水处理的印迹光子水凝胶柱

DOI:
10.1039/c5ra16024c
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发表时间:
2015-11
期刊:
影响因子:
3.9
通讯作者:
Xiaobin-Bin Hu
Xiaobin-Bin Hu
中科院分区:
化学3区
文献类型:
--
作者:
Xiaobin-Bin Hu

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我们在这里展示了一个一般的协议,准备一个自我报告的水处理,以消除重金属离子通过印迹光子水凝胶。在水凝胶柱的表面上具有光子晶体结构的互连多孔光子层可以通过改变颜色来自我指示处理的吸附能力的变化,并增加水凝胶柱的吸附效率。采用离子印迹技术提高水凝胶柱的吸附能力。选择Pb(II)离子作为初步情况以验证印迹光子水凝胶柱的性质。然后利用Cu(II)和Zn(II)离子进行研究以证实最初的发现。Ag(I)离子是可被水凝胶还原的氧化性金属离子的特殊样品。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,使用的水凝胶柱被证明是通过洗脱离子回收。该方案提供了一个有前途的污染水处理的性质,自我报告和高效率的去除重金属离子。
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.
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