Adsorption of Direct Green B on mixed hydroxy-Fe-Al pillared montmorillonite with large basal spacing
ZENG Xiu-qiong , LIU Wei-ping
DOI:
Received March 15, 2004,Revised July 29, 2004, Accepted , Available online
Volume 17,2005,Pages 159-162
- Summary
- References
- Related Articles
Through cation-exchanging of montmorillonite, mixed hydroxy Fe-Al-pillared montmorillonites with large basal spacing were synthesized. The application of these mixed hydroxy Fe-Al-pillared montmorillonites as adsorbents in the areas of environmental protection and pollution control was investigated. Adsorption of Direct Green B, an organic dye, on OH-Fe-, OH-Al-, OH-Fe-Al- pillared montmorillonites was studied. Results showed that these pillared montmorillonites had much better adsorption properties than traditional Na-organo-montmorillonite. It was also found that pH of the solutions had great effect on the performance of these hydroxy-metal pillared montmorillonites in treating the wastewater containing Direct Green B.
