...
首页> 外文期刊>Acta Chimica Slovenica >Functionalization of graphene oxide with 9-aminoanthracene for the adsorptive removal of persistent aromatic pollutants from aqueous solution
【24h】

Functionalization of graphene oxide with 9-aminoanthracene for the adsorptive removal of persistent aromatic pollutants from aqueous solution

机译:氧化石墨烯与9-氨基蒽的官能团用于从水溶液中吸附去除持久性芳香族污染物

获取原文
   

获取外文期刊封面封底 >>

       

摘要

A novel modified graphene oxide nanocomposite was fabricated via a facial procedure, aiming to removal of the aromatic pollutants from aqueous solution. The graphene oxide (GO) was functionalized with 9-aminoanthracene and produced graphene oxide-9-aminoanthracene (GO-9-AA). FTIR, XRD, TGA, TEM and Raman spectroscopy techniques were used for characterization of the adsorbents. Adsorption of naphthalene (NAP), acenaphthylene (ACN), and phenanthrene (PHN) as a model of polycyclic aromatic hydrocarbons (PAHs) was investigated by GO-9-AA. The adsorbent showed excellent removal efficiency towards PAHs from aqueous solution. Equilibrium data of the adsorption process were successfully fitted with Freundlich?model from single solute system, and the maximum adsorption capacities followed the order of NAP > ACN >PHN. The kinetic analysis revealed that the overall adsorption process was fast and successfully fitted with the pseudo-second-order kinetic model. The anthracene ring makes GO-9-AA π-electron rich, thus facilitating π-π EDA interaction between NAP, ACN and PHN with GO-9-AA.
机译:通过面部程序制备了新颖的改性氧化石墨烯纳米复合材料,旨在从水溶液中去除芳香族污染物。将氧化石墨烯(GO)用9-氨基蒽官能化,并产生氧化石墨烯-9-氨基蒽(GO-9-AA)。 FTIR,XRD,TGA,TEM和拉曼光谱技术用于表征吸附剂。用GO-9-AA研究了萘(NAP),(ACN)和菲(PHN)作为多环芳烃(PAHs)的模型。吸附剂对水溶液中PAHs的去除效率极好。用单溶质系统的Freundlich模型成功地拟合了吸附过程的平衡数据,其最大吸附容量遵循NAP> ACN> PHN的顺序。动力学分析表明,整个吸附过程快速且成功地拟合了伪二级动力学模型。蒽环使GO-9-AA的π电子富集,从而促进了GO-9-AA与NAP,ACN和PHN之间的π-πEDA相互作用。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号