Polymer-based colloidal particles for the removal of organic molecules and salts from soil and water

用于去除土壤和水中的有机分子和盐的聚合物基胶体颗粒

• 批准号: 448000-2013
• 负责人: Serpe, Michael
• 金额: $ 1.82万
• 依托单位: University of Alberta
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2014
• 资助国家: 加拿大
• 起止时间: 2014-01-01 至 2015-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=554618
• 关键词: Polymer; based; colloidal; particles; removal

Poly (N-isopropylacrylamide) (pNIPAm)-based hydrogel particles can be synthesized to be on the order of 100 nm - 2000 nm in diameter. These particles, frequently referred to as nanogels or microgels (depending on their diameter) are water soluble and uniquely respond to increases in the temperature of the water they are dissolved in by shrinking in diameter. This specific temperature is ~32 °C, and the nanogels re-expand upon lowering the water temperature to below 32 °C. Additionally, these particles are highly porous; slightly hydrophobic, which makes them good sorbents for organic molecules; and have a high concentration of free electrons, for binding to various metal ions.

基于聚（N-异丙基丙烯酰胺）（pNIPAm）的水凝胶颗粒可以被合成为直径为100 nm - 2000 nm的量级。这些颗粒通常被称为纳米凝胶或微凝胶（取决于它们的直径）是水溶性的，并且通过直径收缩而独特地响应于它们溶解在其中的水的温度的增加。这个特定的温度是~32 °C，当水温降低到32 °C以下时，纳米凝胶会重新膨胀。此外，这些颗粒是高度多孔的;略微疏水的，这使得它们成为有机分子的良好吸附剂;并且具有高浓度的自由电子，用于结合各种金属离子。