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Bio-Inspired Biomass-Derived Carbon Aerogels with Superior Mechanical Property for Oil–Water Separation
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2020-04-13 , DOI: 10.1021/acssuschemeng.0c00910 Tao Chen 1 , Mingxin Li 1 , Li Zhou 1 , Xiaobo Ding 1 , Dajun Lin 1 , Tao Duan 1 , Guangcheng Yang 2 , Rong He 1 , Wenkun Zhu 1
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2020-04-13 , DOI: 10.1021/acssuschemeng.0c00910 Tao Chen 1 , Mingxin Li 1 , Li Zhou 1 , Xiaobo Ding 1 , Dajun Lin 1 , Tao Duan 1 , Guangcheng Yang 2 , Rong He 1 , Wenkun Zhu 1
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It is a challenge to fabricate three-dimensional carbon aerogels based on natural renewable resources with stability, flexibility, and versatility. Here, an ultralight, elastic, and hydrophobic multifunctional reduced graphene oxide-konjac glucomannan (RGO-KGM) carbon aerogel was fabricated by a three-step process of freeze-casting, freeze-drying, and carbonization. In the freeze-casting process, three unique structural RGO-KGM carbon aerogels were obtained by adjusting the position of the PDMS mold on the homemade directional freezer. RGO-KGM carbon aerogels possessed many excellent physicochemical properties, such as ultralow density, high specific surface area, elasticity, hydrophobicity, and controllable size. As an adsorbent, RGO-KGM carbon aerogels exhibited high adsorption capacity for various organic solvents and oils, and the maximum adsorption capacity reached up to 360 g/g. Therefore, RGO-KGM carbon aerogels with good mechanical properties and reusability shows promising prospects in the field of water treatment.
中文翻译：
受生物启发的生物质碳气凝胶，具有优异的机械性能，可用于油水分离
基于具有稳定性，灵活性和多功能性的天然可再生资源来制造三维碳气凝胶是一个挑战。在此，通过冷冻浇铸，冷冻干燥和碳化的三个步骤，制造了一种超轻，弹性和疏水性的多功能还原型氧化石墨烯-魔芋葡甘露聚糖（RGO-KGM）碳气凝胶。在冷冻浇铸过程中，通过调节PDMS模具在自制定向冰箱上的位置，获得了三种独特的RGO-KGM结构碳气凝胶。RGO-KGM碳气凝胶具有许多出色的理化特性，例如超低密度，高比表面积，弹性，疏水性和可控制的尺寸。作为吸附剂，RGO-KGM碳气凝胶对各种有机溶剂和油类具有很高的吸附能力，最大吸附量达到360 g / g。因此，具有良好机械性能和可重复使用性的RGO-KGM碳气凝胶在水处理领域显示出广阔的前景。
更新日期：2020-04-23
中文翻译：
受生物启发的生物质碳气凝胶，具有优异的机械性能，可用于油水分离
基于具有稳定性，灵活性和多功能性的天然可再生资源来制造三维碳气凝胶是一个挑战。在此，通过冷冻浇铸，冷冻干燥和碳化的三个步骤，制造了一种超轻，弹性和疏水性的多功能还原型氧化石墨烯-魔芋葡甘露聚糖（RGO-KGM）碳气凝胶。在冷冻浇铸过程中，通过调节PDMS模具在自制定向冰箱上的位置，获得了三种独特的RGO-KGM结构碳气凝胶。RGO-KGM碳气凝胶具有许多出色的理化特性，例如超低密度，高比表面积，弹性，疏水性和可控制的尺寸。作为吸附剂，RGO-KGM碳气凝胶对各种有机溶剂和油类具有很高的吸附能力，最大吸附量达到360 g / g。因此，具有良好机械性能和可重复使用性的RGO-KGM碳气凝胶在水处理领域显示出广阔的前景。
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