Environmental behavior of engineered nanomaterials in porous media: A review

Chang Min Park, Kyoung Hoon Chu, Jiyong Heo, Namguk Her, Min Jang, Ahjeong Son, Yeomin Yoon

Research output: Contribution to journalReview articlepeer-review

73 Scopus citations

Abstract

A pronounced increase in the use of nanotechnology has resulted in nanomaterials being released into the environment. Environmental exposure to the most common engineered nanomaterials (ENMs), such as carbon-based and metal-based nanomaterials, can occur directly via intentional injection for remediation purposes, release during the use of nanomaterial-containing consumer goods, or indirectly via different routes. Recent reviews have outlined potential risks assessments, toxicity, and life cycle analyses regarding ENM emission. In this review, inevitable release of ENMs and their environmental behaviors in aqueous porous media are discussed with an emphasis on influencing factors, including the physicochemical properties of ENMs, solution chemistry, soil hydraulic properties, and soil matrices. Major findings of laboratory column studies and numerical approaches for the transport of ENMs are addressed, and studies on the interaction between ENMs and heavy metal ions in aqueous soil environments are examined. Future research is also presented with specific research directions and outlooks.

Original languageEnglish
Pages (from-to)133-150
Number of pages18
JournalJournal of Hazardous Materials
Volume309
DOIs
StatePublished - 15 May 2016

Keywords

  • Engineered nanomaterials
  • Porous media
  • Sorption modeling
  • Transport

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