Renewable, Biomass-Derived, Honeycomblike Aerogel As a Robust Oil Absorbent with Two-Way Reusability
Renewable, Biomass-Derived, Honeycomblike Aerogel As a Robust Oil Absorbent with Two-Way Reusability
复制标题
可再生、生物质衍生的蜂窝状气凝胶作为具有双向可重复使用性的稳健吸油剂
DOI：
10.1021/acssuschemeng.7b02333
复制
发表时间：
2017-11-01
影响因子：
8.4
通讯作者：
Chen, Fengqiu
中科院分区：
文献类型：
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作者：
Jiang, Jingxian;Zhang, Qinghua;Chen, Fengqiu
含油废水的处理是当今世界各国广泛关注的问题。具有大容量和高选择性的新兴环境友好材料，可以有效地从水中吸收油和有机溶剂或实现油/水分离，需求量很大。在此，我们展示了以木质素、琼脂糖和聚乙烯醇（PVA）为基本成分的可持续的、生态友好的、生物质衍生的蜂窝状气凝胶的简易制造。该气凝胶具有低密度（ρ < 0.052 g cm-3）的多孔三维（3D）胞状结构，并具有良好的柔韧性和可压缩性。改性的气凝胶，这是能够实现切换从油和有机溶剂的吸附到解吸只需通过改变介质的pH值，得到简单地通过将原始气凝胶浸泡到合成的共聚物的溶液中含有pH-响应性组分聚（2-（二甲基氨基）乙基甲基丙烯酸酯）（pDMAEMA）。的吸收能力…
The disposal of oily wastewater has attracted extensive attention worldwide these days. Emerging environmentally friendly materials with large capacity and high selectivity that can effectively absorb oil and organic solvents from water or realize oil/water separation are in high demand. Herein, we demonstrated the facile fabrication of a sustainable, ecofriendly, biomass-derived, honeycomblike aerogel, taking lignin, agarose, and poly(vinyl alcohol) (PVA) as basic ingredients. The aerogel possessed porous three-dimensional (3D) cellular structure with tunable low density (ρ < 0.052 g cm–3) and featured good flexibility and compressibility. The modified aerogel, which was able to achieve switching from the absorption of oil and organic solvents to desorption just by altering the medium pH, was obtained simply through immersing the original aerogel into a solution of the synthesized copolymer containing pH-responsive component poly(2-(dimethylamino)ethyl methacrylate) (pDMAEMA). The absorption capacity of ...