期刊文献+

海泡石对不同价态有机阳离子染料吸附机理探讨 被引量:11

Probe into Adsorption Mechanism of Sepiolite on Different Valent Cations Organic Dyes
在线阅读 下载PDF
导出
摘要 确定了海泡石对一价阳离子染料亚甲基蓝、结晶紫和二价阳离子染料甲基绿的吸附机理、吸附模型。研究结果发现 ,当染料投加量低于海泡石的CEC时 ,染料几乎全部被吸附 ;而当投加量高于CEC时 ,染料吸附量逐渐增加至其饱和吸附量。对亚甲基蓝和结晶紫的最大吸附量分别达到海泡石CEC的 4 1倍和 5 3倍 ,对二价阳离子甲基绿的最大吸附量约为海泡石CEC的 1 4倍。认为其差别主要是由于一价阳离子除吸附在海泡石表面负电位上之外 ,还可与中性位连接 ,形成带电缔合物。而二价阳离子在海泡石上的吸附 ,主要以离子交换为主。当染料浓度较高时 ,亚甲基蓝分子由于在溶液中聚合 。
出处 《非金属矿》 CAS CSCD 北大核心 2003年第4期39-41,共3页 Non-Metallic Mines
基金 天津市高等学校科技发展基金项目 (2 0 0 10 40 3 )
  • 相关文献

参考文献11

  • 1Kang S F. Decolorization of textile wastewater by photo - fenton oxidation technology[ J ]. Chemosphere, 2000(41 ) : 1287-1294.
  • 2Brauner K, Preisinger A. Structure and origin of sepiolite[J ]. Miner.Petr. Mitt., 1956(6) : 120-- 140.
  • 3Alrichs, J. L., et al. Structural hydroxyls in sepiollte[J ]. Clays & Clay Miner., 1975 (23) : 119 -- 124.
  • 4Giles C. H., et al. Studies in adsorption. Part II . A system of classification of solution adsorption isotherms and its use in diagnosis of adsorption mechanisms and measurement of specific surface areas of solids [J ]. J. Chem. Soc., 1960(4) : 3973-- 3993.
  • 5Aznar A. J., et al. Adsorption of methylene blue on sepiolite gels:spectroscopic and rheological studies [J ]. Clay Minerals, 1992(27):101--108.
  • 6Alvarez A., et al. Surfactant adsorption and rheological behavior of surface- modified sepiolite [Z]. Denver: Proc. Int. Clay Conf.,1987 : 370-- 374.
  • 7Giora Rytwo, et al. Adsorption of diquat, paraquat and methyl green on sepiolite: experimental results and model calculations [J ]. Applied Clay Science, 2002 (20) : 273-- 282.
  • 8Rytwo G., et al. Interactions of monovalent organic cations with montmorillonite, adsorption and model calculations[ J ]. J. Soil Sci.Am. Soc., 1995(59) :554-- 564.
  • 9Ruiz - Hitzky E., et al. Organomineral derivatives obtained by reacting organcchlorcailanes with the surfaces of silicates in organic solvents[J] .Clays & Clay Miner., 1976(24):25-30.
  • 10Spencer W., et al. Kinetic study of the monomer - dimer equilibrium of methylene blue in aqueous solution[J ]. J. Phys. Chem., 1979(83) : 1573 - 1576.

同被引文献177

引证文献11

二级引证文献59

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部