中华医学超声杂志

应用化学 ›› 2010, Vol. 27 ›› Issue (02): 211-214.DOI: 10.3724/SP.J.1095.2010.90068

• 研究论文 • 上一篇    下一篇

焦粉基碳吸附材料对铜(Ⅱ)离子吸附特性

雒和明1*,曹国璞2,张建强1,张徳懿1,赵霞1,董鹏1   

  1. (1.兰州理工大学石油化工学院 兰州 730050；2.长庆石油第二采油处巨力工程建设公司 甘肃)
  • 收稿日期:2009-01-20 修回日期:2009-03-16 出版日期:2010-02-10 发布日期:2010-02-10
  • 通讯作者: 雒和明，男，硕士，高级工程师; E-mail:luohm@lut.cn; 研究方向：绿色化学与材料
  • 基金资助:
    甘肃省教育厅研究生导师科研项目（0703-09）

Study on adsorption properties of copper (Ⅱ) hydronium by adsorbent materials produced from Coke Powder

LUO He-Ming1*, CAO Guo-Pu2, ZHANG Jian-Qiang1, ZHANG De-Yi1, ZHAO Xia1, DONG Feng1   

  1. (1.School of Petrochemical Engineering,Lanzhou University of Technology,Lanzhou 730050;
    2.Juli Construction Company of Second Production Department,Changqing Petroleum,Qingyang)
  • Received:2009-01-20 Revised:2009-03-16 Published:2010-02-10 Online:2010-02-10

PDF

1109

被引次数

2

摘要：

采用硝酸预氧化焦粉、氯化锌化学活化法制备了焦粉基碳吸附材料。 考察了焦粉基碳吸附材料对水中铜(Ⅱ)离子的吸附特性。 实验结果表明,焦粉基碳吸附材料吸附平衡时间90 min，该吸附过程符合Langmuir型吸附模型；不同温度下的ΔHθ＞0、ΔGθ＜0，证实其吸附过程是一个自发吸热过程；ΔSθ＞0，表明铜离子在固液界面有序性减小、混乱度增大。 对实验数据进行数学模型拟合，二级相关系数R2=0.999 1，显示吸附过程动力学与二级动力学模型相关性较好。

关键词: 焦粉基碳吸附材料, 铜(Ⅱ)离子, 吸附模型, 吸附热力学, 吸附动力学

Abstract:

Coke-based carbon absorption material was prepared by nitric acid pre-oxidation of coke powder followed by zinc chloride chemical activation. The absorption characteristics were studied for the cokebased carbon absorbing copper ions in water. The results show that the absorption equilibrium time was 90 min, and the absorption accorded with the Langmuir model. In addition，the results of ΔHθ＞0, ΔGθ＜0 at different temperatures reveal that the adsorption was a spontaneous endothermic process, and that ΔSθ＞0 indicates that the order reduced and the chaos increased for the copper ion adsorption the solidliquid interface. Finally, the experimental data were fitted to second order kinetics model and the correlation coefficient(R2) was 0.9991, suggesting that the adsorption followed second order kinetics.

Key words: Coke Powder, cupric waste water, adsorption model, adsorption thermodynamic, absorption dynamics

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