• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>RSC Advances >Acetylacetone functionalized magnetic carbon microspheres for the highly-efficient adsorption of heavy metal ions from aqueous solutions
【24h】

Acetylacetone functionalized magnetic carbon microspheres for the highly-efficient adsorption of heavy metal ions from aqueous solutions

机译：乙酰丙酮官能化碳微球，用于高效吸附来自水溶液的重金属离子

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Herein, Acac-C@Fe3O4, a magnetic carbon (C@Fe3O4) modified with acetylacetone (Acac), was first prepared and used as a solid-phase adsorbent for adsorbing some heavy metal ions from aqueous solution. The adsorbent was characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), vibrating sample magnetometry (VSM) and BET studies. Some parameters affecting the adsorption and desorption processes were studied in Pb2+ solution, including sample pH, contact time, initial concentration, type and connection of the desorption solution. Absorption results showed that removal of Pb2+ was 100% under optimal conditions at an initial concentration of 10.0 mg L-1. The adsorption mechanism conformed well to a pseudo-second order kinetic model. The adsorption capacity of the sorbent also showed promising results with Hg2+, Cr3+, Fe2+, Cd2+, Mn2+, Zn2+, Cu2+ and Pb2+, where maximum adsorption capacities reached 98.0, 151.2, 188.9, 202.2, 286.3, 297.2, 305.1 and 345.3 mg g(-1), respectively. The Acac-C@Fe3O4 microsphere material was successfully applied to the adsorption of heavy metal ions in aqueous solution.
机译：在此，首先制备用乙酰丙酮（ACAC）改性的磁性碳（C 2 Fe3O4），并用作固相吸附剂，用于吸附来自水溶液的一些重金属离子。吸附剂的特征在于傅里叶变换红外光谱（FTIR），X射线衍射（XRD），扫描电子显微镜（SEM），透射电子显微镜（TEM），X射线光电子能谱（XPS），振动样品磁体（VSM）和BET研究。在PB2 +溶液中研究了影响吸附和解吸过程的一些参数，包括样品pH，接触时间，初始浓度，类型和解吸溶液的连接。吸收结果表明，在最佳条件下，在初始浓度为10.0mg l-1的最佳条件下除去Pb2 +为100％。吸附机制符合伪二阶动力学模型。吸附剂的吸附能力也表现出有前途的与汞+，Cr3 +的，Fe2 +的，镉，MN2 +，Zn2 +的，Cu 2+和Pb2 +的，其中最大的吸附容量达到98.0，151.2，188.9，202.2，286.3，297.2，305.1和345.3毫克克结果（ -1）分别。 ACAC-C @ Fe3O4微球材料成功地应用于水溶液中重金属离子的吸附。

著录项

  • 来源
    《RSC Advances》 |2019年第6期|共8页
  • 作者

    Ma Jie; Sun Mengya; Zeng Yulan; Liu Zhenhua; Zhang Manman; Xiao Yao; Zhang Shuping;

  • 作者单位

    Univ Shanghai Sci &

    Technol Coll Sci Shanghai 200093 Peoples R China;

    Univ Shanghai Sci &

    Technol Coll Sci Shanghai 200093 Peoples R China;

    Univ Shanghai Sci &

    Technol Coll Sci Shanghai 200093 Peoples R China;

    Univ Shanghai Sci &

    Technol Coll Sci Shanghai 200093 Peoples R China;

    Univ Shanghai Sci &

    Technol Coll Sci Shanghai 200093 Peoples R China;

    Univ Shanghai Sci &

    Technol Coll Sci Shanghai 200093 Peoples R China;

    Univ Shanghai Sci &

    Technol Coll Sci Shanghai 200093 Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
  • 关键词

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