Liu Yanyan, Wang Shimin, Xing Congcong, Du Hang, Du Chenxia, Li Baojun
College of Chemistry and Molecular Engineering, Zhengzhou University, 100 Science Road, Zhengzhou 450001, P. R. China.
College of Material and Chemistry Engineering, Henan University of Engineering, 1 Xianghe Road, Zhengzhou 451191, P. R. China.
ACS Omega. 2016 Sep 29;1(3):491-497. doi: 10.1021/acsomega.6b00154. eCollection 2016 Sep 30.
A novel template-activation method was used to create nanoporous carbon materials derived from core-shells@rGO sheets. The carbon materials were prepared through an acid etching and thermal activation procedure with three-dimensional FeO@C@rGO composites as precursors and FeO nanoparticles as the structural template. The activation at different temperatures could provide materials with different specific surface areas. The unique nanoporous structures with large surface areas are ideal adsorbents. The nanoporous carbon materials were used as adsorbents for the removal of rhodamine B (Rh-B). C@rGO-650 illustrated better adsorption performance than the other synthesized adsorbents. It displayed good recyclability, and its highest adsorption capacity reached up to 14.8 L·g. The remarkable adsorption properties make nanoporous carbon a useful candidate for wastewater treatment. This template-activation method can also broaden the potential applications of core-shells@sheet structures for the construction of nanoporous carbon, which helps to resolve the related energy and environmental issues.
一种新型的模板活化方法被用于制备源自核壳@rGO片材的纳米多孔碳材料。这些碳材料通过酸蚀刻和热活化程序制备，以三维FeO@C@rGO复合材料为前驱体，FeO纳米颗粒为结构模板。在不同温度下进行活化可以为材料提供不同的比表面积。具有大表面积的独特纳米多孔结构是理想的吸附剂。这些纳米多孔碳材料被用作吸附剂以去除罗丹明B（Rh-B）。C@rGO-650表现出比其他合成吸附剂更好的吸附性能。它显示出良好的可回收性，其最高吸附容量达到14.8 L·g。这些显著的吸附特性使纳米多孔碳成为废水处理的有用候选材料。这种模板活化方法还可以拓宽核壳@片材结构在构建纳米多孔碳方面的潜在应用，这有助于解决相关的能源和环境问题。
