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Method for scalable production of nanoshells using salt assisted purification of intermediate colloid-seeded nanoparticles
Method for scalable production of nanoshells using salt assisted purification of intermediate colloid-seeded nanoparticles
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机译:使用中间胶体播种的纳米颗粒的盐辅助纯化可规模生产纳米壳的方法
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摘要
A method for purifying a suspension containing colloid-seeded nanoparticles and excess colloids is provided that includes adding to the suspension a filter aid comprising a salt. The method further includes filtering the suspension with a filter of a pore size intermediate between the average colloid-seeded nanoparticle size and the average excess colloid size, so as to form a retentate that includes the majority of the colloid-seeded nanoparticles and a filtrate that includes the majority of the excess colloids. Still further, the method includes collecting the retentate. The method may be incorporated into a method of making metallized nanoparticles, such as nanoshells, by reduction of metal ions onto the purified colloid-seed nanoparticles so as to form the metallized nanoparticles.
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