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Cationic surfactant modified 3D COF and its application in the adsorption of UV filters and alkylphenols from food packaging material migrants.
Journal of Agricultural and Food Chemistry ( IF 5.7 ) Pub Date : 2020-02-25 , DOI: 10.1021/acs.jafc.9b07542
Shijuan Zhang 1, 2 , Xia Wu 1, 2 , Chong Ma 1, 2 , Yanxin Li 1, 2 , Jinmao You 1, 2
Journal of Agricultural and Food Chemistry ( IF 5.7 ) Pub Date : 2020-02-25 , DOI: 10.1021/acs.jafc.9b07542
Shijuan Zhang 1, 2 , Xia Wu 1, 2 , Chong Ma 1, 2 , Yanxin Li 1, 2 , Jinmao You 1, 2
Affiliation
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Hexadecyl trimethyl ammonium bromide (CTAB) micelles were applied in the synthesis of covalent organic frameworks (COFs) for the first time to achieve the synthesis of 3D COF from 2D materials. Benzidine, one raw material for COF, was enclosed in the CTAB micelles because of the hydrophobic effect, and thus the target COF, which can be formed immediately with the aid of p-toluenesulfonic acid, grew in a micelle guided 3D form. The synthesized 3D COF showed a flower-like structure, while the COF synthesized without CTAB showed a smooth structure. The diameter of the 3D COFs showed direct correlations with CTAB concentrations. Moreover, the CTAB modified COF also showed a dramatically improved fluorescence property in comparison with that of normal COFs. The synthesized 3D COF showed good adsorption performance for UV filters and alkylphenols with recoveries ranged from 90.2% to 99.8 %, and it also showed good fluorescence response for Pb2+. The utility of CTAB modified COF was verified in the enrichment of UV filters and alkylphenols from food packaging material migrants.
中文翻译：
阳离子表面活性剂改性的3D COF及其在食品包装材料中吸收UV滤光剂和烷基酚的应用。
十六烷基三甲基溴化铵（CTAB）胶束首次用于共价有机骨架（COF）的合成，以实现从2D材料合成3D COF。由于COF的一种疏水性作用，联苯胺是COF的一种原料，因此，它可以在对甲苯磺酸的帮助下立即形成的目标COF以胶束引导的3D形式生长。合成的3D COF显示出花状结构，而没有CTAB合成的COF显示出平滑结构。3D COF的直径显示出与CTAB浓度直接相关。此外，与普通COF相比，CTAB改性的COF还显示出显着改善的荧光性能。合成的3D COF对UV滤光剂和烷基酚显示出良好的吸附性能，回收率在90.2％至99.8％之间，并且对Pb2 +也显示出良好的荧光响应。CTAB改性的COF的实用性已在食品包装材料中添加的紫外线过滤剂和烷基酚的富集中得到验证。
更新日期：2020-03-05
中文翻译：
阳离子表面活性剂改性的3D COF及其在食品包装材料中吸收UV滤光剂和烷基酚的应用。
十六烷基三甲基溴化铵（CTAB）胶束首次用于共价有机骨架（COF）的合成，以实现从2D材料合成3D COF。由于COF的一种疏水性作用，联苯胺是COF的一种原料，因此，它可以在对甲苯磺酸的帮助下立即形成的目标COF以胶束引导的3D形式生长。合成的3D COF显示出花状结构，而没有CTAB合成的COF显示出平滑结构。3D COF的直径显示出与CTAB浓度直接相关。此外，与普通COF相比，CTAB改性的COF还显示出显着改善的荧光性能。合成的3D COF对UV滤光剂和烷基酚显示出良好的吸附性能，回收率在90.2％至99.8％之间，并且对Pb2 +也显示出良好的荧光响应。CTAB改性的COF的实用性已在食品包装材料中添加的紫外线过滤剂和烷基酚的富集中得到验证。
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