Techno-Economic Analysis of Recycled Ionic Liquid Solvent Used in a Model Colloidal Platinum Nanoparticle Synthesis
Techno-Economic Analysis of Recycled Ionic Liquid Solvent Used in a Model Colloidal Platinum Nanoparticle Synthesis
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DOI：
10.1021/acssuschemeng.0c06993
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发表时间：
2021-01-11
影响因子：
8.4
通讯作者：
Brutchey, Richard L.
中科院分区：
文献类型：
--
作者：
Karadaghi, Lanja R.;Malmstadt, Noah;Brutchey, Richard L.
在过去的20年里，离子液体作为传统挥发性有机溶剂的替代品已经引起了极大的关注，因为它们不易燃，蒸气压可以忽略不计，具有高热稳定性和化学稳定性，并且可以回收利用。离子液体最近的一个用途是作为溶剂用于合成胶体无机纳米颗粒；然而，采用离子液体的一个主要挑战是它们通常比传统的有机溶剂更昂贵。在此，我们通过技术经济分析，深入了解了回收离子液体溶剂如何影响胶体铂纳米颗粒合成模型中的产品特性、每次回收后离子液体的结构以及纳米颗粒制造的总体成本。使用标准的离子液体，1-丁基-3-甲基咪唑双（三氟甲基磺酰基）亚胺（bmm - ntf2）作为Pt纳米颗粒合成的溶剂，我们证明了离子液体可以在与原始或购买的离子液体初始反应后通过多次连续反应回收和重复使用。使用再生离子液体不会导致产品质量的下降或纳米颗粒形态的改变。对该合成方法的技术经济分析表明，通过离子液体循环，使用bmi - ntf2制备纳米颗粒不仅具有竞争力，而且成本可能低于传统有机溶剂1-十八烯。
Ionic liquids have garnered significant attention over the past 20 years as alternatives to conventional volatile organic solvents because they are non-flammable, have negligible vapor pressures, possess high thermal and chemical stabilities, and can potentially be recycled. A more recent use of ionic liquids is their application as a solvent in the synthesis of colloidal inorganic nanoparticles; however, a major challenge in the adoption of ionic liquids is that they are generally more expensive than their traditional organic solvent counterparts. Herein, we provide insight into how recycling an ionic liquid solvent affects the product characteristics in a model colloidal platinum nanoparticle synthesis, the structure of the ionic liquid through each recycle, and the overall cost of nanoparticle fabrication using a techno-economic analysis. Using a standard ionic liquid, 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide (BMIM-NTf2), as the solvent for a Pt nanoparticle synthesis, we demonstrate that the ionic liquid can be recovered and reused through multiple successive reactions following the initial reaction with virgin, or as-purchased, ionic liquid. The use of recycled ionic liquid does not cause any degradation in the product quality or change in nanoparticle morphology. Techno-economic analysis of this synthesis method revealed that, through ionic liquid recycling, nanoparticle preparation using BMIM-NTf2 can achieve a cost that is not only competitive but also potentially lower than that of the conventional organic solvent, 1-octadecene.