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偶氮苯 1

分子开关 1

选择性吸附 1

铈掺杂介孔二氧化硅 1

高效脱附 1

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Synthesis and properties of novel organogelators functionalized with 5-iodo-1,2,3-triazole and azobenzene groups

Ziyan Li,Yaodong Huang,Dongli Fan,Huimin Li,Shuxue Liu,Luyuan Wang

《化学科学与工程前沿（英文）》 2016年第10卷第4期页码 552-561 doi: 10.1007/s11705-016-1589-8

摘要： Two series of 5-iodo-1,2,3-triazole derivatives containing azobenzene group(s) were synthesized and their gelling properties were tested. Those containing two azobenzene groups ( series) have better gelation performance than those containing one azobenzene group ( series). The microstructure of organogels and the driving force of gelation were investigated by scanning electron microscopy and H NMR, respectively. It was found that π-π stacking, van der Waals interaction, and dipole-dipole interaction were the main forces of gelation. All the tested organogels are photoresponsive and those from series are smarter than that from series. Henry - diagrams of compounds , , and were constructed on the basis of their gelation performance and the Hansen solubility parameters of related solvents. The constructed Henry - diagrams can be used to estimate the behavior of three compounds in any untested solvent.

关键词： iodo triazole azobenzene photoresponsive organogel gelator-solvent effect

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Supramolecular self-assembly of two-component systems comprising aromatic amides/Schiff base and tartaric acid

Xin Wang, Wei Cui, Bin Li, Xiaojie Zhang, Yongxin Zhang, Yaodong Huang

《化学科学与工程前沿（英文）》 2020年第14卷第6期页码 1112-1121 doi: 10.1007/s11705-019-1865-5

摘要： The gelating properties and thermotropic behaviors of stoichiometric mixtures of aromatic amides , and the aromatic Schiff base with tartaric acid (TA) were investigated. Among the three gelators, -TA exhibited superior gelating ability. Mixture -TA exhibits a smectic B phase and an unidentified smectic mesophase during both heating and cooling runs. The results of Fourier transform infrared spectroscopy and X-ray diffraction revealed the existence of hydrogen bonding and - interactions in -TA systems, which are likely to be the dominant driving forces for the supramolecular self-assembly. Additionally, it was established that all of the studied gel self-assemblies and mesophases possess a lamellar structure. The anion response ability of the tetrahydrofuran gel of -TA was evaluated and it was found that it was responsive to the stimuli of F , Cl , Br , I , AcO .

关键词： supramolecular self-assembly organogel liquid crystal tartaric acid hydrogen bond

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用于选择性吸附和高效脱附的具有光响应分子开关的铈掺杂智能吸附剂 Article

谈朋, 江耀, 亓士超, 高夏君, 刘晓勤, 孙林兵

《工程（英文）》 2020年第6卷第5期页码 569-576 doi: 10.1016/j.eng.2020.03.005

摘要：

在不同工艺阶段通过可控调整吸附剂性质实现高效吸附和脱附是非常有吸引力的。然而，传统的吸附剂由于其固定的活性位点而难以实现这一目标。因此，我们将具有顺反异构体的偶氮苯衍生物引入铈掺杂的介孔氧化硅中，构筑了一种光响应智能吸附剂。这些光响应基团具有“分子开关”的作用，能够遮蔽或暴露活性位点，从而实现吸附剂的高效吸附和脱附。掺杂了铈元素的吸附剂可以提供额外的活性位点，进而提高吸附剂吸附性能。结果表明，偶氮苯顺式异构体能有效遮蔽活性位点，使吸附剂对亚甲基蓝（MB）和亮蓝（BB）进行选择性吸附，而其反式异构体则使活性位点暴露，导致吸附质释放。这些智能吸附剂通过光刺激能够可控地实现选择性吸附和高效脱附。此外，经过5次循环后，材料的性能保持良好。

关键词：偶氮苯铈掺杂介孔二氧化硅分子开关选择性吸附高效脱附