關鍵字查詢 | 類別:期刊論文 | | 關鍵字:Separation of Charge-regulated Polyelectrolytes by pH-assisted Diffusiophoresis

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1 105/2 數學系 曾琇瑱 教授 期刊論文 發佈 Separation of Charge-regulated Polyelectrolytes by pH-assisted Diffusiophoresis , [105-2] :Separation of Charge-regulated Polyelectrolytes by pH-assisted Diffusiophoresis期刊論文Separation of Charge-regulated Polyelectrolytes by pH-assisted DiffusiophoresisJyh-Ping Hsu; Yen-Rei Hsu; Hsieh Shang-Hung; Shiojenn TsengPhysical Chemistry Chemical Physics 19, p.9059-9063The potential of separating colloidal particles through simultaneous application of a salt gradient and a pH gradient, or pH-assisted diffusiophoresis, is evaluated by considering the case of spherical polyelectrolytes (PEs) having different equilibrium dissociation constants in an aqueous solution with KCl as the background salt. The simulation results gathered reveal that the dependence of the particle velocity on pH is more sensitive than that in pH-assisted electrophoresis, where an electric field and a pH gradient are applied simultaneously. This implies that the separation efficiency of pH-assisted diffusiophoresis can be better than that of pH-assisted electrophoresis. In particular, two types of PE having diffe
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