A magnetic graphene hybrid functionalized with beta-cyclodextrins for fast and efficient removal of organic dyes

Xiaodong Liu, Liang Yan, Wenyan Yin, Liangjun Zhou, Gan Tian, Junxin Shi, Zhiyong Yang, Debao Xiao, Zhanjun Gu, Yuliang Zhao

Research output: Contribution to journalArticle

89 Scopus citations

Abstract

A β-cyclodextrin (β-CD) functionalized magnetic graphene hybrid (mGO-β-CD) has been prepared and its application as an adsorbent for the removal of organic dyes has been investigated. Magnetic graphene hybrids (mGOs) were first synthesized via a chemical precipitation method, and then β-CDs were applied to further functionalize the resultant mGO hybrid. The results demonstrate that the as-prepared mGO-β-CD hybrid exhibits greatly enhanced adsorption performance in water. Acid fuchsin and Rhodamine 6G, the typical dye pollutants, can be effectively removed from their solutions by the mGO-β-CD hybrid. The maximum adsorption capability of the mGO-β-CD hybrid is several times, even hundreds of times higher than that of the reported carbonaceous materials. Moreover, ca. 90% of the dye removal efficiency can be retained after six adsorption-desorption cycles. In addition, the mGO-β-CD hybrid exhibits negligible toxicity toward the normal cells. Conclusively, the resultant mGO-β-CD hybrid proves to be a magnetically separable, efficient and non-toxic adsorbent for dye removal. This journal is

Original languageEnglish (US)
Pages (from-to)12296-12303
Number of pages8
JournalJournal of Materials Chemistry A
Volume2
Issue number31
DOIs
StatePublished - Aug 21 2014

ASJC Scopus subject areas

  • Chemistry(all)
  • Renewable Energy, Sustainability and the Environment
  • Materials Science(all)

Fingerprint Dive into the research topics of 'A magnetic graphene hybrid functionalized with beta-cyclodextrins for fast and efficient removal of organic dyes'. Together they form a unique fingerprint.

Cite this