Polyaniline coating with various substrates for hexavalent chromium removal

Bin Qiu, Cuixia Xu, Dezhi Sun, Qiang Wang, Hongbo Gu, Xin Zhang, Brandon L. Weeks, Jack Hopper, Thomas C. Ho, Zhanhu Guo, Suying Wei

Research output: Contribution to journalArticle

90 Scopus citations

Abstract

Hexavalent chromium (Cr(VI)) contamination is increasingly serious in surface water and groundwater, therefore, its removal attracts increasing attention due to its highly toxic to human health. The cost effective and sustainable adsorbents are urgently needed for the remediation of Cr(VI) pollution. Polyanline (PANI), a conductive polymer, has demonstrated a great performance on Cr(VI) removal. But the recycling is the challenge for its application due to its small size. The PANI coating with various substrates is an effective approach to solve this problem. The synthesis methods and applications of the PANI coated magnetic Fe 3 O 4 , carbon fabric and cellulose composites for the Cr(VI) removal were reviewed. Finally, this review analyzed the Cr(VI) removal mechanisms by the PANI composites considering the substrate and the PANI coating.

Original languageEnglish
Pages (from-to)7-14
Number of pages8
JournalApplied Surface Science
Volume334
DOIs
StatePublished - Apr 15 2015

Keywords

  • Carbon fabric
  • Cellulose
  • Chromium removal
  • Magnetic
  • Polyaniline (PANI)

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