In the present work an azomethinic pincer (P) possessing an ONNNO donor set was prepared via condensation reaction of diethylenetriamine and o-hydroxyacetophenone followed by silyl-functionalization (introduction of a triethoxysilylpropyl or silatranylpropyl group via urea linker) to afford P-Sil and P-Silt, respectively. The resulting products were characterized by various spectroscopic techniques, elemental analysis and single-crystal X-ray diffraction. They were further utilized for the fabrication of post-synthesis functionalized mesoporous silica nanoparticles (MSNs) using similar reaction conditions. The obtained hybrid materials ([email protected] and [email protected]) were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), thermogravimetry (TGA), nitrogen gas adsorption-desorption measurements and C,H,N microanalysis. The corresponding results revealed particularly high loading of organic moieties for the P-Silt functionalized particles. In addition, adsorption behavior of both materials towards the anionic dye eriochrome black T (EBT) was evaluated by examining the effect of pH, solution temperature, time and dye concentration. The maximum adsorption capacity of [email protected] and [email protected] at pH = 3 was found to be 101 mg g⁻¹ and 69.9 mg g⁻¹, respectively (calculated on the basis of Langmuir model). The characterization and adsorption studies revealed better loading of organic moieties in [email protected] with respect to [email protected] Furthermore, [email protected] was used to adsorb the cationic dye methylene blue (MB) at pH = 8. Its maximum adsorption capacity reached 28 mg g⁻¹.

在本工作中，通过二亚乙基三胺和邻羟基苯乙酮的缩合反应，然后进行甲硅烷基官能化（通过尿素连接基引入三乙氧基甲硅烷基丙基或甲硅烷基丙基），制得具有ONNNO供体的偶氮甲钳（P），得到P-Sil和P -淤泥， 分别。通过各种光谱技术，元素分析和单晶X射线衍射对所得产物进行表征。使用相似的反应条件，将它们进一步用于合成后功能化的介孔二氧化硅纳米粒子（MSN）的制备。通过扫描电子显微镜（SEM），透射电子显微镜（TEM），热重分析（TGA），氮气吸附-脱附测量以及C，H，N微观分析对获得的杂化材料（[受电子邮件保护]和[受电子邮件保护]）进行了表征。 。相应的结果表明，P-Silt的有机部分负载量特别高功能化的粒子。另外，通过检查pH，溶液温度，时间和染料浓度的影响，评估了两种材料对阴离子染料铬铁黑T（EBT）的吸附行为。发现在pH ＝ 3下[受电子邮件保护的]和[受电子邮件保护的]的最大吸附容量分别为101mg g ^-1和69.9mg g ^-1（基于Langmuir模型计算）。表征和吸附研究表明，相对于[电子邮件保护]，[电子邮件保护]中有机部分的负载更好。此外，[电子邮件保护]用于在pH = 8时吸附阳离子染料亚甲基蓝（MB）。其最大吸附容量达到28mg g ^-1。