Graphene oxide incorporated alginate hydrogel beads for the removal of various organic dyes and bisphenol A in water

Lu Gan, Hui Li, Liwei Chen, Lijie Xu, Jie Liu, Aobo Geng, Changtong Mei, Songmin Shang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

28 Citations (Scopus)

Abstract

In the present study, we described a facile preparation of graphene oxide incorporated alginate hydrogel beads (SA/GO) and applied them in adsorbing organic pollutants in aqueous media. The results show that the incorporation of graphene oxide obviously decreased the pore size and swelling ratio of the hydrogel beads. The existence of the GO also significantly enhanced the adsorption capability of the SA/GO beads to various organic dyes, including heterocyclic dye, indigo dye, anthraquinone, and azo dye. Besides, the SA/GO beads show promising adsorption capability to the bisphenol A (BPA), a toxic chemical which could cause endocrine disruption. The adsorption isotherm and kinetic of the SA/GO beads were also studied in detail. The present study indicates that the SA/GO beads are a type of effective absorbent for various organic pollutants which have the potential to be applied in water purification fields.
Original languageEnglish
Pages (from-to)607-615
Number of pages9
JournalColloid and Polymer Science
Volume296
Issue number3
DOIs
Publication statusPublished - 1 Mar 2018

Keywords

  • Alginate bead
  • BPA removal
  • Graphene oxide
  • Kinetic
  • Organic dyes adsorption

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Polymers and Plastics
  • Colloid and Surface Chemistry
  • Materials Chemistry

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