Zhu Zhaolian, Li Aimin, Yan Lei, Liu Fuqiang, Zhang Quanxing
State Key Laboratory of Pollution Control and Resource Reuse, Jiangsu Engineering and Technology Research Center for Organic Toxicant Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210093, China.
J Colloid Interface Sci. 2007 Dec 15;316(2):628-34. doi: 10.1016/j.jcis.2007.09.016. Epub 2007 Sep 14.
Highly mesoporous spherical activated carbons (SACs) were prepared from divinylbenzene-derived polymers by ZnCl(2) activation; the effects of activation temperature and retention time on the yield and textural properties of the resulting SACs were studied. SACs thus prepared were characterized by N(2) adsorption, X-ray diffraction (XRD), scanning electron microscopy (SEM), and aqueous adsorption assays. All the SACs were generated with high yield (>54%) and high mesopore fraction (around 80%). SEM and XRD analyses of SAC28 verified the presence of the disordered micrographite stacking with developed mesoporosity. Compared with conventional activated carbons, SAC28 prepared in our study exhibited a comparable adsorption capacity of 190 mg g(-1) for bisphenol A and even more excellent capacity of 330 mg g(-1) for phenol. Bisphenol A preloading significantly reduced the adsorption capacity of SAC28 for phenol due to both reduction of adsorption sites and pore blockage.
通过氯化锌活化由二乙烯基苯衍生的聚合物制备了高度介孔的球形活性炭（SAC）；研究了活化温度和保留时间对所得SAC的产率和织构性质的影响。通过氮气吸附、X射线衍射（XRD）、扫描电子显微镜（SEM）和水吸附试验对如此制备的SAC进行了表征。所有SAC均以高产率（>54%）和高介孔分数（约80%）生成。SAC28的SEM和XRD分析证实了具有发达介孔率的无序微晶石墨堆积的存在。与传统活性炭相比，我们研究中制备的SAC28对双酚A的吸附容量为190 mg g-1，具有可比性，对苯酚的吸附容量甚至更优异，为330 mg g-1。由于吸附位点的减少和孔堵塞，双酚A预负载显著降低了SAC28对苯酚的吸附容量。
