Key Laboratory of Advanced Braided Composites, Ministry of Education, School of Textiles, Tianjin Polytechnic University, Tianjin, 300160, People's Republic of China.
Environ Sci Pollut Res Int. 2018 Dec;25(34):34438-34447. doi: 10.1007/s11356-018-3409-9. Epub 2018 Oct 10.
Three-dimensional (3D) double network graphene oxide/polyacrylic acid (GO/PAA) hybrid aerogels were fabricated under mild conditions from the mixture of GO and acrylic acid (AA) monomers using a one-pot in situ solution polymerization process which included the polymerization of AA and the self-assembly of functional GO sheets. The PAA chains served as not only binder to assemble GO sheets into 3D framework but also modifier to provide more active functional groups. The adsorbents based on such material exhibited superior adsorption performance towards Cu ions in aqueous media due to rich mesopores, high specific surface area, and abundant active sites. This work brings a new vision for assembling 3D porous graphene-based nanomaterials as adsorbents in environmental protection.
三维（3D）双网络氧化石墨烯/聚丙烯酸（GO/PAA）杂化气凝胶是在温和条件下，通过将 GO 和丙烯酸（AA）单体混合，采用一锅原位溶液聚合工艺制备而成的，该工艺包括 AA 的聚合和功能化 GO 片的自组装。PAA 链不仅作为将 GO 片组装成 3D 骨架的粘合剂，而且还作为提供更多活性官能团的改性剂。由于具有丰富的中孔、高比表面积和丰富的活性位点，基于这种材料的吸附剂在水介质中对 Cu 离子表现出优异的吸附性能。这项工作为组装 3D 多孔基于石墨烯的纳米材料作为环保吸附剂提供了新的思路。
