| 海藻酸分子印迹聚合物的合成及其对锌离子的识别作用 |
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| 引用本文： | 柯仁怀.海藻酸分子印迹聚合物的合成及其对锌离子的识别作用[J].科学技术与工程,2012,12(13):3048-3050,3069. |
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| 作者姓名： | 柯仁怀 |
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| 作者单位： | 福建卫生职业技术学院,福州,350101 |
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| 摘 要： | 将海藻酸钠与锌(II)配位形成配位聚合物膜,用FT-IR和DRS研究所得到的海藻酸-锌(II)配位聚合物(AA-Zn)的形成机理。将此配位聚合物与戊二醛(GA)进行交联,得到交联印迹聚合物前体,并用FT-IR光谱表征其结构。为了制备对Zn2+离子敏感的分子印迹聚合物(MIP),将前体聚合物浸入0.5 moL/L HCl溶液中48 h并搅拌,以洗脱Zn2+离子得到印迹聚合物(MIP-Zn)。洗脱液用UV-Vis光谱检测并验证,UV-Vis谱图显示Zn(II)的特征吸收峰在240 nm处,表明Zn2+离子已被洗脱。将制得的海藻酸钠-锌(II)印迹膜用于吸附Zn2+离子,结果表明印迹聚合物对Zn2+离子有较强的吸附能力。
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| 关 键 词： | 海藻酸钠/Zn2+配位聚合物 分子印迹聚合物 吸附 |
| 收稿时间： | 2012/2/20 0:00:00 |
| 修稿时间： | 2012/2/20 0:00:00 |
Preparation and characterization of the alginic acid-based molecularly imprinted polymer |
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| Ke renhuai.Preparation and characterization of the alginic acid-based molecularly imprinted polymer[J].Science Technology and Engineering,2012,12(13):3048-3050,3069. |
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| Authors: | Ke renhuai |
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| Affiliation: | (Fujian Health College,Fuzhou 350101,P.R.China) |
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| Abstract: | Abstract A coordination polymer of the sodium alginate (SA) with Zn (II) was formed in the form of membrane. The obtained coordination polymer (alginic acid-Zn) was characterized and confirmed by means of FT-IR and diffusion reflection spectroscopy (DRS) meansurements. This coordination polymer was crosslinked with glutaraldehyde (GA) in order to obtain the precursor of the imprinted polymer. The crosslinked coordination polymer was investigated by FTIR. The elution of Zn (II) from the coordination polymer membrane was carried out by immersing the crosslinked precursor membrane in the 0.5mol/L HCl solution for 48 h with stirring. The eluted solution was determinated by UV-Vis to detect whether Zn (II) has been eluted or not. The rebinding experiments indicated the significant recognition for Zn (II) with imprinted polymer (MIP-Zn) as compared with non-imprinted polymer (AA-Zn). |
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| Keywords: | sodium alginate/Zn(II) coordination polymer molecularly imprinted polymer adsorption |
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