Zheng Wei, Shi Yawei, Liu Guozhu, Zhao Bin, Wang Liang
State Key Laboratory of Separation Membranes and Membrane Processes, School of Environmental Science and Engineering, Tiangong University Tianjin 300387 China
School of Chemical Engineering and Technology, Tianjin University Tianjin 300072 China.
RSC Adv. 2020 Jan 8;10(3):1595-1602. doi: 10.1039/c9ra09269b. eCollection 2020 Jan 7.
Using organic salts as precursors, heteroatom-doped porous carbons prepared by activation had surface areas of up to 2703 m g. These porous carbons have been found to be effective adsorbents for adsorption of sulfamethoxazole (SMX) from water. The effects of precursor type, calcination temperature, pH and ionic strength as well as the regeneration properties were investigated. The different adsorption performances of porous carbons were related to their textural structures and chemical properties, and a reasonable adsorption mechanism was proposed. The effects of different heteroatom functional groups on the adsorption of SMX were also analyzed in detail. For potential practical applications, the performance of the porous carbon for removing SMX from real water was also tested.
以有机盐为前驱体，通过活化制备的杂原子掺杂多孔碳的比表面积高达2703 m²/g。已发现这些多孔碳是从水中吸附磺胺甲恶唑（SMX）的有效吸附剂。研究了前驱体类型、煅烧温度、pH值和离子强度以及再生性能的影响。多孔碳的不同吸附性能与其结构和化学性质有关，并提出了合理的吸附机理。还详细分析了不同杂原子官能团对SMX吸附的影响。对于潜在的实际应用，还测试了多孔碳从实际水中去除SMX的性能。
