Fabrication of Hierarchically Porous CuBTC@PA-PEI Composite for High-Efficiency Elimination of Cyanogen Chloride
Cyanogen chloride (CNCl) is highly toxic and volatile, and it is difficult to effectively remove via porous substances such as activated carbon due to the weak interaction between CNCl and the adsorbent surface. Developing a highly effective elimination material against CNCl is of great importance i...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-03-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/28/6/2440 |
| _version_ | 1797609918507778048 |
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| author | Xuanlin Yang Liang Lan Chao Zheng Kai Kang Hua Song Shuyuan Zhou Shupei Bai |
| author_facet | Xuanlin Yang Liang Lan Chao Zheng Kai Kang Hua Song Shuyuan Zhou Shupei Bai |
| author_sort | Xuanlin Yang |
| collection | DOAJ |
| description | Cyanogen chloride (CNCl) is highly toxic and volatile, and it is difficult to effectively remove via porous substances such as activated carbon due to the weak interaction between CNCl and the adsorbent surface. Developing a highly effective elimination material against CNCl is of great importance in military chemical protection. In this work, a new metal-organic framework (MOF) CuBTC@PA-PEI (polyacrylate-polyethyleneimine) composite was prepared and exhibited excellent CNCl elimination performance in the breakthrough tests. PEI was used for the functionalization of PA with amino groups, which is beneficial to anchor with metal ions of MOF. Afterward, the growth of MOF occurred on the surface and in the pores of the matrix by molecular self-assembly via our newly proposed stepwise impregnation layer-by-layer growth method. Breakthrough tests were performed to evaluate the elimination performance of the composites against CNCl. Compared with the pristine CuBTC powder, the CuBTC@PA-PEI composite exhibited better adsorption capacity and a longer breakthrough time. By compounding with the PA matrix, a hierarchically porous structure of CuBTC@PA-PEI composite was constructed, which provides a solution to the mass transfer problem of pure microporous MOF materials. It also solves the problems of MOF molding and lays a foundation for the practical application of MOF. |
| first_indexed | 2024-03-11T06:08:18Z |
| format | Article |
| id | doaj.art-68db11f9feba448ebdfa3418c277b2ee |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-03-11T06:08:18Z |
| publishDate | 2023-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-68db11f9feba448ebdfa3418c277b2ee2023-11-17T12:50:21ZengMDPI AGMolecules1420-30492023-03-01286244010.3390/molecules28062440Fabrication of Hierarchically Porous CuBTC@PA-PEI Composite for High-Efficiency Elimination of Cyanogen ChlorideXuanlin Yang0Liang Lan1Chao Zheng2Kai Kang3Hua Song4Shuyuan Zhou5Shupei Bai6State Key Laboratory of NBC Protection for Civilian, Beijing 100191, ChinaState Key Laboratory of NBC Protection for Civilian, Beijing 100191, ChinaState Key Laboratory of NBC Protection for Civilian, Beijing 100191, ChinaState Key Laboratory of NBC Protection for Civilian, Beijing 100191, ChinaState Key Laboratory of NBC Protection for Civilian, Beijing 100191, ChinaState Key Laboratory of NBC Protection for Civilian, Beijing 100191, ChinaState Key Laboratory of NBC Protection for Civilian, Beijing 100191, ChinaCyanogen chloride (CNCl) is highly toxic and volatile, and it is difficult to effectively remove via porous substances such as activated carbon due to the weak interaction between CNCl and the adsorbent surface. Developing a highly effective elimination material against CNCl is of great importance in military chemical protection. In this work, a new metal-organic framework (MOF) CuBTC@PA-PEI (polyacrylate-polyethyleneimine) composite was prepared and exhibited excellent CNCl elimination performance in the breakthrough tests. PEI was used for the functionalization of PA with amino groups, which is beneficial to anchor with metal ions of MOF. Afterward, the growth of MOF occurred on the surface and in the pores of the matrix by molecular self-assembly via our newly proposed stepwise impregnation layer-by-layer growth method. Breakthrough tests were performed to evaluate the elimination performance of the composites against CNCl. Compared with the pristine CuBTC powder, the CuBTC@PA-PEI composite exhibited better adsorption capacity and a longer breakthrough time. By compounding with the PA matrix, a hierarchically porous structure of CuBTC@PA-PEI composite was constructed, which provides a solution to the mass transfer problem of pure microporous MOF materials. It also solves the problems of MOF molding and lays a foundation for the practical application of MOF.https://www.mdpi.com/1420-3049/28/6/2440cyanogen chloridemetal-organic frameworksCuBTC/polyacrylate compositesurface modificationstepwise impregnation layer-by-layer growth |
| spellingShingle | Xuanlin Yang Liang Lan Chao Zheng Kai Kang Hua Song Shuyuan Zhou Shupei Bai Fabrication of Hierarchically Porous CuBTC@PA-PEI Composite for High-Efficiency Elimination of Cyanogen Chloride Molecules cyanogen chloride metal-organic frameworks CuBTC/polyacrylate composite surface modification stepwise impregnation layer-by-layer growth |
| title | Fabrication of Hierarchically Porous CuBTC@PA-PEI Composite for High-Efficiency Elimination of Cyanogen Chloride |
| title_full | Fabrication of Hierarchically Porous CuBTC@PA-PEI Composite for High-Efficiency Elimination of Cyanogen Chloride |
| title_fullStr | Fabrication of Hierarchically Porous CuBTC@PA-PEI Composite for High-Efficiency Elimination of Cyanogen Chloride |
| title_full_unstemmed | Fabrication of Hierarchically Porous CuBTC@PA-PEI Composite for High-Efficiency Elimination of Cyanogen Chloride |
| title_short | Fabrication of Hierarchically Porous CuBTC@PA-PEI Composite for High-Efficiency Elimination of Cyanogen Chloride |
| title_sort | fabrication of hierarchically porous cubtc pa pei composite for high efficiency elimination of cyanogen chloride |
| topic | cyanogen chloride metal-organic frameworks CuBTC/polyacrylate composite surface modification stepwise impregnation layer-by-layer growth |
| url | https://www.mdpi.com/1420-3049/28/6/2440 |
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