Preparation and characterization of highly mesoporous spherical activated carbons from divinylbenzene-derived polymer by ZnCl(2) activation.
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.
Zhu
Zhaolian
Z
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.
Li
Aimin
A
Yan
Lei
L
Liu
Fuqiang
F
Zhang
Quanxing
Q
D000327:Adsorption; D001555:Benzene Derivatives / Q000737:chemistry*; D002244:Carbon / Q000737:chemistry*; D002712:Chlorides / Q000737:chemistry*; D009584:Nitrogen / Q000737:chemistry; D010316:Particle Size; D011108:Polymers / Q000737:chemistry*; D016062:Porosity; D013499:Surface Properties; D014867:Water / Q000737:chemistry; D017967:Zinc Compounds / Q000737:chemistry*
D001555:Benzene Derivatives; D002712:Chlorides; D011108:Polymers; D017967:Zinc Compounds; D014867:Water; D002244:Carbon; C016837:zinc chloride; D009584:Nitrogen