Metal–organic framework (MOF) derived carbon-based nanocatalysts have received great attention in environmental remediation application. However, the aggregation and poor separation characteristics are the main obstacles in practical application. Herein, biomass (cotton) of cheap cost and easy availability has been selected as an ideal support for MOFs (ZIF-67). The catalyst precursor Cot@ZIF-67 is obtained by the coordination of Co ions with hydroxyl groups (from cotton) and nitrogen (from 2-methylimidazole). To present the catalytic ability of Cot@ZIF-67 derived carbon/Co materials (CC@CNCo), bisphenol A (BPA) as the targeted pollutant is selected. The results indicate that almost 100% of BPA can be removed by catalyst CC@CNCo within 5 min. Based on quenching experiments, fluorescence detection, and electron paramagnetic resonance (EPR) analysis, a sulfate-radical-dominated radical mechanism is proposed. This work is expected to attract greater attention to biomass/MOF derived materials for environmental remediation.

中文翻译：

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大规模合成生物质@MOF的多孔碳/钴纳米纤维，用于高级氧化工艺的环境修复。

金属有机框架（MOF）衍生的碳基纳米催化剂在环境修复应用中受到极大关注。但是，聚集和分离特性差是实际应用中的主要障碍。在此，已经选择了成本低廉且易于获得的生物质（棉）作为MOF（ZIF-67）的理想支撑。催化剂前体Cot @ ZIF-67是通过Co离子与羟基（来自棉）和氮（来自2-甲基咪唑）配位而获得的。为了显示Cot @ ZIF-67衍生的碳/钴材料（CC @ CNCo）的催化能力，选择了双酚A（BPA）作为目标污染物。结果表明，催化剂CC @ CNCo可以在5分钟内除去几乎100％的BPA。根据淬灭实验，荧光检测和电子顺磁共振（EPR）分析，提出了硫酸根自由基为主的自由基机理。预期这项工作将引起更多生物质/ MOF衍生材料用于环境修复的关注。