过滤(数学)
金属有机骨架
材料科学
多孔性
化学工程
滤波器(信号处理)
吸附
共晶体系
木质素
废物管理
复合材料
纳米技术
化学
微观结构
有机化学
统计
工程类
计算机科学
数学
计算机视觉
作者
Zhongguo Wang,Fengyue Yin,Xiongfei Zhang,Tianran Zheng,Jianfeng Yao
标识
DOI:10.1016/j.seppur.2022.121095
摘要
Particulate matter (PM) pullution has emerged as a global concern. Herein, delignified wood functionalized with metal–organic frameworks (MOFs) was investigated for efficient PM removal. In particular, the lignin removal was realized by a deep-eutectic-solvent assisted process. By integrating three different MOFs into the porous wood matrix, wood-based filters with hierarchical structure were fabricated. The MOF particles including ZIF-8, MOF-199 and UiO-66 were deposited on the filters through in situ growth approach, thereby leading to a uniform MOF dispersion and strong wood-MOF adhesion. The ZIF-8 functionalized wood filter exhibited the highest PM removal performance, with PM2.5 and PM10 removal efficiencies of 89.8% and 91.6%, respectively. The superior PM capture ability of [email protected] is attributed to the suitable surface property and sophisticated channels/pores. The gas transport pathways and PM capture mechanisms within wood filter were discussed in detail. This cost-effective and environmentally friendly filtration device provides a novel material platform for PM removal, and it could be extended for hazardous gas capture and volatile organic compound adsorption.
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