中华医学超声杂志

应用化学 ›› 2011, Vol. 28 ›› Issue (07): 809-814.DOI: 10.3724/SP.J.1095.2011.00444

• 研究论文 • 上一篇    下一篇

胍改性凹凸棒土对甲基橙的吸附

陈田田1,韦长梅1*,薛爱莲1,王锦堂2   

  1. (1.淮阴师范学院化学化工学院，江苏省低维材料化学重点建设实验室 淮安 223300；
    2.南京工业大学理学院应用化学系 南京)
  • 收稿日期:2010-07-30 修回日期:2010-12-15 出版日期:2011-07-10 发布日期:2011-07-10
  • 通讯作者: 韦长梅,教授; Tel:0517-83525083; Fax:0517-83525795; E-mail:weicm@hytc.edu.cn; 研究方向：水处理剂
  • 基金资助:
    江苏省教育厅自然科学基金(JH08-32)资助项目，江苏省低维材料化学重点建设实验室开放研究基金(JSKC09060)资助项目，江苏省高校科研成果产业化推进项目(JH08038)

Adsorption of Methyl Orange on Guanidine Modified Attapulgite

CHEN Tiantian1, WEI Changmei1*, XUE Ailian1, WANG Jintang2   

  1. (1.Key Laboratory for Chemistry of Low-Dimensional Materials of Jiangsu Province,
    College of Chemistry and Chemical Engineering of Huaiyin Normal University,Huaian 223300;
    2.Department of Applied Chemistry,College of Science,Nanjing University of Technology,Nanjing)
  • Received:2010-07-30 Revised:2010-12-15 Published:2011-07-10 Online:2011-07-10
  • Contact: weichangmei

PDF

1553

被引次数

10 | 3

摘要：

采用十六烷基胍改性凹凸棒土对甲基橙废水进行脱色处理，考察了吸附时间、吸附剂用量和染料浓度等因素对脱色效果的影响。 结果表明，十六烷基胍改性凹凸棒土对甲基橙废水具有很好的脱色性能，其对甲基橙废水脱色率达98%以上，与原凹凸棒土相比有显著提高。 平衡吸附量qe与平衡浓度ρe之间关系符合Langmuir等温吸附方程。 吸附热值小于40 kJ/mol，表观表现为物理吸附。

关键词: 十六烷基胍, 改性, 凹凸棒土, 甲基橙, 吸附

Abstract:

The adsorption capability of 16 alkyl-guanidine modified attapulgite for methyl orange was studied. The effects of adsorption time, the amount of adsorbent, and the concentration of the dyes were also studied. The results showed that the adsorption capacity of the modified attapulgite clay was improved obviously, and the decolorization rate of methyl orange simulated wastewater dyes was higher than 98%. The relationship between adsorpting capacity(qe) and equilibrum mass concentration(ρe) was in accordance with the isothermal adsorption Langmuir equations. The adsorption heat is less than 40 kJ/mol. The adsorption exhibits a physical adsorption.

Key words: hexadecylguanidine, modification, attapulgite, methyl organge, adsorption

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