吸附
多孔性
化学工程
溴化物
材料科学
金属有机骨架
卟啉
微观结构
单体
无机化学
化学
有机化学
复合材料
聚合物
工程类
作者
Yawen Xiao,Chen Chen,Yangli Wu,Jiao Wang,Yutao Yin,Jianbing Chen,Xiao Huang,Peipei Qi,Bing Zheng
标识
DOI:10.1016/j.micromeso.2021.111272
摘要
The present work described the construction of a highly-efficient and stable adsorbent for removing hazardous pesticide from water. Water-stable metal-organic framework (MOF) nanosheets with three-dimensional (3D) structure, named as Al-TCPP nanosheets, were fabricated using aluminum (III) chloride hexahydrate and tetrakis (4-carboxyphenyl) porphyrin as the monomers with the assistance of a cetyltrimethylammonium bromide. Al-TCPP nanosheets and bulk crystals were comprehensively characterized to explore their differences in morphologies, microstructures and porous properties. Al-TCPP nanosheets kept the original crystal structure with an average thickness of ~17 nm. They also displayed excellent hydrophilic property, water stability and hierarchical porous structure with the surface area of 1359 m2 g−1, which were beneficial to the adsorption of chlorantraniliprole. Adsorption experiments were carried out and the maximum adsorption capacity of chlorantraniliprole on Al-TCPP nanosheets achieved 371.91 mg g−1, which was obviously higher than that of the bulk crystals (222.11 mg g−1). The disparity should be attributed to the hierarchical porous structures and highly exposed active sites of nanosheets. These results illuminate that MOF nanosheets can be a promising material for the adsorption of hazardous contaminants in water treatment.
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