氢氧化镁改性活性炭对铜离子的吸附
DOI:
作者:
作者单位:

作者简介:

通讯作者:

中图分类号:

X703

基金项目:

化学工程联合国家重点实验室开放基金


Adsorption of Copper Ions by Magnesium Hydroxide Modified Activated Carbon
Author:
Affiliation:

Fund Project:

United Nations Key Laboratory of Chemical Engineering Open Fund

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    采用反应结晶技术制备了改性活性炭材料(Mg-GAC),并采用 SEM、XRD表征手段对改性前后活性炭进行微观分析,进而研究了 GAC 和 Mg-GAC随吸附时间、溶液pH值和温度变化对废水中铜离子的吸附效果影响。结果表明,GAC经改性后,大大增加了其比表面积,增至738.01m2/g。在Mg-GAC 投加量为0.3g,铜离子浓度为40mg/L,温度为25℃,pH为7的条件下反应2 h,其吸附量达到11.66mg/g。另外,铜离子的吸附过程符合 Langmuir 等温模型。

    Abstract:

    The modified activated carbon material (Mg-GAC) was prepared by reactive crystallization technique. The microstructure of the activated carbon before and after modification was analyzed by SEM and XRD. The adsorption time, pH value and temperature of GAC and Mg-GAC were studied. The effect of adsorption of copper ions in wastewater. The results show that the modified GAC greatly increases its specific surface area and increases to 738.01m2/g. When the dosage of Mg-GAC was 0.3g, the concentration of copper ion was 40mg/L, the temperature was 25 ℃, and the pH was 7 for 2 h, the adsorption amount reached 11.66mg/g. In addition, the adsorption process of copper ions conforms to the Langmuir isotherm model.

    参考文献
    相似文献
    引证文献
引用本文

李鑫璐,赵建海.氢氧化镁改性活性炭对铜离子的吸附[J].精细化工,2020,37(1):

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2019-04-19
  • 最后修改日期:2019-07-04
  • 录用日期:2019-07-04
  • 在线发布日期: 2019-11-27
  • 出版日期: