Design of a Multifunctional Indium-Organic Framework: Fluorescent Sensing of Nitro Compounds, Physical Adsorption, and Photocatalytic Degradation of Organic Dyes
Design of a Multifunctional Indium-Organic Framework: Fluorescent Sensing of Nitro Compounds, Physical Adsorption, and Photocatalytic Degradation of Organic Dyes
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多功能铟有机框架的设计：硝基化合物的荧光传感、物理吸附和有机染料的光催化降解
DOI：
10.1021/acs.inorgchem.9b01862
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发表时间：
2019
影响因子：
4.6
通讯作者：
Zhai Quan-Guo
中科院分区：
文献类型：
--
作者：
Li Hai-Peng;Dou Zhaodi;Chen Shuang-Qiu;Hu Mancheng;Li Shuni;Sun Hua-Ming;Jiang Yucheng;Zhai Quan-Guo
硝基化合物的检测和有机染料的去除仍然是迫切的问题，因为它们对人类有毒。利用金属有机框架（MOF）材料，我们在这里展示了铟有机框架（InOF）表现出灵敏的硝基化合物的荧光传感，突出的染料捕获，和优异的染料光降解。通过使用4，4 ′，4 ″-s-三嗪-1，3，5-三基三对氨基苯甲酸酯（TATAB），一种氨基官能化的BTB样连接物，形成3D SNNU-110结构（{[In 3 OCl（H2O）2（TATAB）2]}n）. SNNU-110显示了3，6-连接的3，6 T22拓扑结构，其中TATAB和[In 3 O（CO2）6]三帽三角棱柱簇作为3-和6-连接节点。由于TATAB的荧光性质和胺识别位点，SNNU-110对6种缺电子硝基芳烃表现出优异的荧光猝灭性能。SNNU-110在a轴和b轴方向上形成的18 nm × 11 nm的交叉一维通道可以有效地捕获阳离子、阴离子和中性染料。无机[In 3 O]团簇的存在使SNNU-110成为一种良好的光催化剂。在300 W氙灯照射下，SNNU-110对罗丹明B（RhB）和亚甲基蓝（MB）显示出优异的光催化活性，并且几乎没有降解。催化活性分别保持在94.6%（RhB）和93.1%（MB）。总体而言，SNNU-110充分展示了多组分MOF的强大功能，为设计面向污染物识别和去除应用的功能材料提供了一条可行的路线。
The detection of nitro compounds and removal of organic dyes remain urgent issues because they are poisonous to humans. Taking advantage of metal–organic framework (MOF) materials, we demonstrate herein an indium–organic framework (InOF) exhibiting sensitive fluorescence sensing of nitro compounds, prominent dye capture, and excellent photodegradation of dyes. By using 4,4′,4″-s-triazine-1,3,5-triyltri-p-aminobenzoate (TATAB), an amino-functionalized BTB-like linker, the 3D SNNU-110 structure ({[In3OCl(H2O)2(TATAB)2]}n) is formed. SNNU-110 shows a 3,6-connected 3,6T22 topology with TATAB and [In3O(CO2)6] tricapped trigonal-prismatic clusters as 3- and 6-connected nodes. Thanks to the fluorescence properties and amine recognition sites of TATAB, SNNU-110 exhibits excellent performance of fluorescence quenching for six electron-deficient nitroaromatics. The intercrossing 1D channels in SNNU-110 formed from thea- andb-axis directions with dimensions of about 18 Å × 11 Å can capture diverse cationic, anionic, or neutral dyes effectively. What is more, the existence of an inorganic [In3O] cluster enable SNNU-110 to be a good photocatalyst. Upon irradiation with a 300 W xenon lamp, SNNU-110 shows outstanding photocatalytic activity toward rhodamine B (RhB) and methylene blue (MB), and there was almost no degradation. The catalytic activity can retain about 94.6% (RhB) and 93.1% (MB), respectively. Overall, SNNU-110 fully demonstrates the power of multicomponent MOFs, which provide a feasible route for the design of functional materials toward to pollutant identification and removal applications.