Key Laboratory of Resource Chemistry of Ministry of Education, Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai, PR China.
J Hazard Mater. 2011 Dec 30;198:216-23. doi: 10.1016/j.jhazmat.2011.10.031. Epub 2011 Oct 15.
Ordered mesoporous carbon coating on the honeycomb cordierite substrate has been prepared using low-polymerized phenolic resins as carbon sources and triblock copolymer F127 as the structure directing agent via the evaporation induced self-assembly route. The high-resolution scanning electron microscopy (HRSEM), transmission electron microscopy (TEM), and nitrogen sorption techniques prove the hexagonally ordered pore arrays of carbon coating on the cordierite. The honeycomb monolith adsorbents coated by ordered mesoporous carbons are directly used without any activation, and exhibit adsorption capacities for chlorinated organic pollutants in water with 200 mg/g for p-chlorophenol and 178 mg/g for p-chloroaniline (with respect to the net carbon coating), high adsorption ratio for low-concentration pollutants, large processing volumes and reusability. More than 200 repeated times can be achieved without obvious loss in both adsorption capacity and weight.
已使用低聚合酚醛树脂作为碳源和三嵌段共聚物 F127 作为结构导向剂,通过蒸发诱导自组装法在蜂窝堇青石基底上制备有序介孔碳涂层。高分辨率扫描电子显微镜(HRSEM)、透射电子显微镜(TEM)和氮气吸附技术证明了碳涂层在堇青石上具有六方有序的孔阵列。涂有有序介孔碳的蜂窝状整体式吸附剂无需任何活化即可直接使用,对水中的氯化有机污染物表现出 200mg/g 的对氯苯酚和 178mg/g 的对氯苯胺(相对于净碳涂层)的吸附容量,对低浓度污染物具有高吸附率、大处理量和可重复使用性。经过 200 多次重复使用,吸附容量和重量均无明显损失。