The stability of green nanoparticles in increased pH and salinity for applications in oil spill-treatment

Simo Kalliola, Eveliina Repo, Mika Sillanpää, Jaspreet Singh Arora, Jibao He, Vijay T. John

Research output: Contribution to journalArticlepeer-review

35 Citations (Scopus)

Abstract

The melting of the permanent ice cover in the arctic region due to the climate change is increasing industrial activity in the region and also consequently there is the enhanced risk for oil-spills. Therefore, there is a need for the development of green chemicals for oil-spill treatment in the arctic region. Carboxymethylated chitosan nanoparticles were cross-linked with Mg, Ca or Sr and the stability of nanoparticles in increased pH and salinity was studied. The carboxymethylation of chitosan was investigated with FTIR and the nanoparticles were studied with dynamic light scattering and SEM. The nanoparticles cross-linked with Ca ions were found to be most stable in increased salinity and pH. The interaction of Ca cross-linked nanoparticles with dodecane in water was also demonstrated. The nanoparticles showed promising potential for applications in oil-spill treatment.

Original languageEnglish
Pages (from-to)99-107
Number of pages9
JournalColloids and Surfaces A: Physicochemical and Engineering Aspects
Volume493
DOIs
Publication statusPublished - 20 Mar 2016
Externally publishedYes

Keywords

  • Carboxymethyl chitosan
  • Nanoparticle
  • Oil in water emulsion
  • Stability

ASJC Scopus subject areas

  • Surfaces and Interfaces
  • Physical and Theoretical Chemistry
  • Colloid and Surface Chemistry

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