Selective recovery of precious metals by selective adsorption on garlic peel gels

Kai Huang, Shuqiang Jiao, Hongmin Zhu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

Garlic peel was used as the raw material to synthesize the biosorbent for the selective recovery of precious metals from the acid chloride solution. Garlic peel is rich in carboxyl-, amino- and thiol-groups, has the potential of exhibiting high affinity to Au(III) when appropriate chemical modification process was employed. Here in the present study, the biosorbent was prepared by cross-linking garlic peel particles with concentrated sulfuric acid. Adsorption tests for mixing different metal ions such as Au(III), Fe(III), Cu(II), Ni(II) and Zn(II) from various concentrations of hydrochloric acid media indicated that Au(III) was selectively adsorbed on the cross-linked garlic peel gel over the other coexisting base metal ions investigated. The crosslinking mechanism and selective adsorption of Au(III) were also investigated briefly.

Original languageEnglish
Title of host publicationExtraction and Processing Division - 2012 EPD Congress - Held During the TMS 2012 Annual Meeting and Exhibition
Pages289-296
Number of pages8
Publication statusPublished - 2012 May 15
Externally publishedYes
Event2012 EPD Congress - TMS 2012 Annual Meeting and Exhibition - Orlando, FL, United States
Duration: 2012 Mar 112012 Mar 15

Publication series

NameTMS Annual Meeting

Other

Other2012 EPD Congress - TMS 2012 Annual Meeting and Exhibition
CountryUnited States
CityOrlando, FL
Period12/3/1112/3/15

Keywords

  • Biosorption
  • Garlic peel
  • Gold
  • Recovery

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys

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