Fabrication and investigation of gold (III) ion-imprinted functionalized silica particles.,Journal of Molecular Recognition

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Fabrication and investigation of gold (III) ion-imprinted functionalized silica particles.
Journal of Molecular Recognition ( IF 2.3 ) Pub Date : 2019-12-08 , DOI: 10.1002/jmr.2813
Majdah R Alotaibi ₁ , Mohammed Monier _{2,

3} , NadiaH Elsayed _{4,

5}

Affiliation

Au (III) ion-imprinted mesoporous silica particles (Au-Si-Py) was manufactured by the condensation reaction of (3-Aminopropyl)triethoxysilane (AT)and 2-pyridinecarboxaldehyde (Py). The obtained AT-Py Schiff base ligand was then coordinate with the template gold ions and the polymerizable gold-complex was allowed to gel in presence of tetraethoxysilane (TEOS) and then the coordinated gold ions were leached out of the obtained silica matrix using acidified thiourea solution. During the synthetic steps, the obtained materials were investigated utilizing advanced instrumental and spectral methods. Moreover, the morphological structure of both Au (III) ions imprinted Au-Si-Py and non-imprinted NI-Si-Py silica particles were visualized using scanning electron microscope (SEM). Various adsorption experiments had been carried out using both Au-Si-Py and NI-Si-Py to examine their potential for selective extraction of gold ions under different conditions.

中文翻译：

金（III）离子印迹功能化二氧化硅颗粒的制备和研究。

通过（3-氨基丙基）三乙氧基硅烷（AT）与2-吡啶甲醛（Py）的缩合反应，制得金（III）离子印迹的中孔二氧化硅颗粒（Au-Si-Py）。然后将获得的AT-Py Schiff碱配体与模板金离子配位，并使可聚合的金络合物在四乙氧基硅烷（TEOS）存在下凝胶化，然后使用酸化的硫脲从获得的二氧化硅基质中浸出配位的金离子。解决方案。在合成步骤中，使用先进的仪器和光谱方法对获得的材料进行了研究。此外，使用扫描电子显微镜（SEM）可以看到Au（III）离子印迹的Au-Si-Py颗粒和未印迹的NI-Si-Py二氧化硅颗粒的形态结构。

更新日期：2020-01-21

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