A binary mixture of a biosurfactant and an ionic liquid surfactant as a green dispersant for oil spill remediation

Mansoor Ul Hassan Shah, Muhammad Moniruzzaman, Magaret Sivapragasam, Md Mahabubur Rahman Talukder, Suzana Bt Yusup, Masahiro Goto

    研究成果: ジャーナルへの寄稿学術誌査読

    42 被引用数 (Scopus)

    抄録

    Formulations based on conventional surfactants and organic solvents have been used as potential dispersants for oil-spill remediation. However, their toxicity restricts their usage in marine environments. As a low-toxicity alternative, in this article we report an oil dispersant based on a binary mixture of an ionic liquid surfactant, choline laurate ([Cho][Lau]), and a biosurfactant, lactonic sophorolipid. We investigated the micellar properties, including the critical micelle concentration, micellar interaction parameter (β), and activity coefficients (f 1 and f 2 ) for the mixed surfactant system. A non-ideal and synergistic interaction between [Cho][Lau] and lactonic sophorolipid was observed. A stable oil-in-water emulsion formed at an optimal ratio of 40:60 (w/w) of [Cho][Lau] and lactonic sophorolipid. At this ratio, a dispersion effectiveness of 83% was achieved with a dispersant-to-oil ratio of 1:25 (v/v). We observed the dispersed oil droplets with an optical microscope and evaluated their size using dynamic light scattering. The droplet size decreased with increasing dispersant-to-oil ratio. We also assessed the toxicity of the binary surfactant mixture in zebra fish (Danio rerio). Based on this assessment, the mixture can be classified as non-toxic. Therefore, the mixture of [Cho][Lau] and lactonic sophorolipid is a potential alternative to conventional toxic oil-spill dispersants.

    本文言語英語
    ページ(範囲)111-119
    ページ数9
    ジャーナルJournal of Molecular Liquids
    280
    DOI
    出版ステータス出版済み - 4月 15 2019

    All Science Journal Classification (ASJC) codes

    • 電子材料、光学材料、および磁性材料
    • 原子分子物理学および光学
    • 凝縮系物理学
    • 分光学
    • 物理化学および理論化学
    • 材料化学

    フィンガープリント

    「A binary mixture of a biosurfactant and an ionic liquid surfactant as a green dispersant for oil spill remediation」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

    引用スタイル