吸附
材料科学
碳化
咪唑酯
化学工程
亚甲蓝
水溶液
碳纳米泡沫
碳纤维
金属有机骨架
多孔性
沸石咪唑盐骨架
活性炭
复合材料
有机化学
化学
光催化
催化作用
工程类
复合数
作者
Qingling Zhang,Youliang Cheng,Changqing Fang,Jiayu Shi,Hanzhi Han,Mengyao Li,Jimin Zhao
标识
DOI:10.1016/j.biortech.2021.126424
摘要
Monolithic carbon foams are promising materials for adsorption due to the easy recyclability and without secondary-pollution. However, poor adsorption efficiency for organic pollutants limits its practical application. Hence, this work proposed a novel monolithic porous carbon foam by a facile carbonization approach as freestanding electrodes to remove the organic dyes. The prepared carbon foam derived from waste cigarette filters and zeolitic-imidazolate frameworks-8 with well-developed pores, and the calculated surface area is 1457 m2·g-1, and exhibited an outstanding removal efficiency for methylene blue in aqueous. The maximum adsorption capacity for methylene blue can reach up to 1846.7 mg·g-1 under the applied voltage of -1.2 V. Importantly, as-prepared carbon foams possessed excellent stability, and the removal efficiency can remain above 85% after 5 cycles. Thus, obtained porous carbon foams in this paper as a free standing electrode is expected to be promising materials of adsorbent besides supercapacitors.
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