生物炭
吸附
多孔性
化学工程
膜
超临界流体
材料科学
气凝胶
纳米-
热解
乳状液
化学
有机化学
纳米技术
复合材料
工程类
生物化学
作者
Jianqiang Chen,Yang Yu,Qianqian Shang,Jiangang Han,Chengguo Liu
标识
DOI:10.1021/acs.iecr.0c00512
摘要
In this study, porous biochar/nanofibrous aerogels (PBNA) with a superhydrophobic surface and hierarchical porous structure were facilely fabricated by incorporating pomelo peel-derived biochar microparticles through a freeze-shaping method. With the PB content increased from 2.5 to 12 wt %, highly deformable PBNA showed structural robustness and adsorbed various organic solvents and oils at a fast rate with adsorption capacity (Q) of chloroform and soybean oil at 120.3 and 118.5 g/g, respectively. PBNA-4 with 12 wt % PB microparticles can effectively separate the water-in-oil type of micro- and nano-emulsions with separation efficiencies up to 99.6%. In addition, porous biochar/nanofibrous membranes (PBNM) realized continuous separation of nano-emulsions with high flux. This study demonstrates an example of fabricating nanofibrous aerogels and membranes for enhanced performance of oil/water separation by coordination of biochar.
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