Liu Yan-Jun, Liu Shan, Li Zhi-Wen, Ma Ming-Guo, Wang Bo
Engineering Research Center of Forestry Biomass Materials and Bioenergy, Beijing Key Laboratory of Lignocellulosic Chemistry, College of Materials Science and Technology, Beijing Forestry University Beijing 100083 PR China
Key Laboratory of Pulp and Paper Science & Technology of Ministry of Education/Shandong Province, Qilu University of Technology Jinan 250353 PR China.
RSC Adv. 2018 Feb 19;8(14):7892-7898. doi: 10.1039/c8ra00012c. eCollection 2018 Feb 14.
Mesoporous carbon materials have recently attracted immense research interest because of their potential application in water purification fields. Herein, we report the synthesis of a mesoporous carbon sponge (MCS) from a supramolecular microcrystalline cellulose-polymer system triggered by microwave-assisted treatment. Benefiting from the three-dimensional (3D) interconnected mesopores and an evenly distributed ball-like protuberance on the inner surfaces of the macropores, the MCS exhibited a high adsorption capacity (93.96 mg g) for fast Cr(vi) removal within 5 min. Additionally, the MCS can be regenerated and reused after the adsorption-desorption process, and maintained an adsorption capacity of ∼86% after 10 cycles. The high adsorption capacity, significantly reduced treatment time, and reusability make the MCS promising for the purification of wastewater on a large scale.
介孔碳材料因其在水净化领域的潜在应用，近年来引起了广泛的研究兴趣。在此，我们报道了通过微波辅助处理引发的超分子微晶纤维素-聚合物体系合成介孔碳海绵（MCS）。得益于三维（3D）相互连接的介孔以及大孔内表面均匀分布的球状突起，MCS在5分钟内对Cr(VI)的快速去除表现出高吸附容量（93.96 mg g）。此外，MCS在吸附-解吸过程后可再生和重复使用，经过10次循环后仍保持约86%的吸附容量。高吸附容量、显著缩短的处理时间和可重复使用性使得MCS在大规模废水净化方面具有广阔前景。
