Synthesis of Organic-Intercalated Zn/Fe Layered Double Hydroxides from the Electroplating Wastewater

Abstract:

A series of dodecyl sulfate (DS-) intercalated Zn/Fe layered double hydroxides (DS-Zn/Fe-LDHs) were prepared by co-precipitation method from the electroplating wastewater containing high concentration of zinc (Zn2+). In addition, the influences of their charge density on the interlayer structure of LDHs were investigated by XRD and FT-IR. The removal rate of Zn2+ in the electroplating wastewater was reached 99.9%. The charge density decreased with the increasing of the ratio of Zn/Fe. The results showed that with the increase of the charge density, the interlamellar spacing of organic-LDH increased. The synthesis product was applied in the sorption of organic contaminant ( nitrobenzene ) and the sorption mechanism was partition. The synthetic DS-Zn/Fe LDHs were good sorbents for organic contaminant.

• Periodical: Advanced Materials Research (Volumes 610-613)
• Pages: 538-541
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.610-613.538
• Online since: December 2012
• Authors: Xiu Xiu Ruan*, Song Huang, Hua Chen
• Keywords: Charge Density, DS-Zn/Fe Ldhs, Electroplating Wastewater

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