摘 要

本文以SBA-15为载体，使用一步合成法在其孔道上引入4-（3-三乙氧基甲硅烷基脲基）偶氮苯（TSUA）并用萃取法去除模板剂后制备得到一种新型的光控智能吸附剂，光响应分子能够在365 nm紫外光和450 nm可见光的照射下，可以自由的进行顺反式结构变化，可以有效地在孔道内将MOP分子分散开，使其不容易集聚，提高其活性和催化选择性；同时，相比于传统吸附剂，它具有高选择性吸附和再生效率。

金属有机多面体（MOPs）在吸附、催化、生物等领域具有很大的潜在应用。由于MOPs的分散性和稳定性不好，使其难以利用。因为使用MOPs之前需要激活活性位，但这样会导致严重的团聚现象，使活性位点相互阻塞，将会导致MOPs材料不具有吸附或催化作用。此外，在MOPs很容易在有水的条件下被破坏。而本文介绍了一种光控吸附剂的制备方法，并将MOPs分散到被修饰后的介孔硅SBA-15的空腔中，使得MOPs在相对潮湿的条件下依然能够保持优良催化性能和结构稳定性。

关键词：SBA-15；MOPs；偶氮苯；光控

Preparation of light-controlled intelligent adsorbents

ABSTRACT

In this paper, SBA-15 is used as a carrier, and a novel one-pot synthesis method is used to introduce 4-(3-triethoxysilylpropyl-ureido)azobenzene (TSUA) into the pores of the substrate and remove the template by extraction method,finally acquire a new type of light-controlled smart adsorbent. Light-responsive molecules can freely undergo cis-trans structure changes under the irradiation of 365 nm UV light and 450 nm visible light, and can effectively disperse MOP molecules in the pores, making it not easy to aggregate, increasing its activity, catalysis, and selectivity. at the same time, it has a high selectivity for adsorption and regeneration efficiency compared to conventional adsorbents.

Metal organic polyhedra (MOPs) have great potential applications in the fields of adsorption, catalysis, and biology. Due to the poor dispersion and stability of MOPs, it is difficult to utilize. Because active sites need to be activated prior to the utilization of MOPs, this can lead to severe agglomeration and block the active sites, resulting in no adsorption or catalysis of the MOPs. Furthermore, MOPs are easily destroyed in the presence of water. This article describes a method for preparing a photo-adsorbent, and disperses the MOPs into the cavity of the modified mesoporous silica SBA-15 so that the MOPs can maintain excellent catalytic performance and and structural stability under relatively humid conditions.

Keywords: SBA-15; MOPs; azobenzene; light-controlled

目 录

摘要 I

ABSTRACT II

目 录 III

第一章 绪论 1

1.1背景介绍 1

1.2吸附分类 1

1.2.1化学吸附 1

1.2.2物理吸附 1

1.3多孔材料 1

1.3.1氧化硅M41S系列材料 2

1.3.2氧化硅SBA-15材料 3

1.4介孔有机-无机杂化材料的制备方法 3

1.4.1后嫁接法 3

1.4.2一步合成法（共缩聚） 3

1.4.3制备PMOs 4

1.4.4脱除模板剂的方法 4

1.5光控智能材料 5

1.5.2光致变色的机理 6

1.6本文研究意义和内容 7

第二章 实验仪器和实验步骤 9

2.1 实验仪器及试剂 9

2.2实验步骤 10

2.2.1 金属有机多面体MOP-OH的制备 10

2.2.2制备 SBA-15 10

2.2.3制备偶氮化合物TSUA 10

2.2.4合成光控智能吸附剂 10

第三章 结果与讨论 11

3.1 光控智能吸附剂的表征 11

3.1.1 小角XRD表征 11

3.1.2 红外表征 11

3.1.3紫外衍射吸收光谱表征 12

3.2 MOP-OH吸附性能测试 13

第四章 结论 14

4.1结论 14

4.2展望 14

参考文献 15

致谢 18