- 作者: 駱建樹 ; 黃賢達
- 作者服務機構: 清華大學化學系
- 中文摘要: The distribution of copper ion species in aqueous ammonia solution is evaluated as a function of pH by a numerical approach. Adsorption of copper on colloidal iron(III) hydroxide in solutions of total ammonia (0.14-1.2M) are performed at various values of pH. The maximum efficiency of adsorption occurs when the sum of the fractions of the species Cu(NH/sub 3/)/sup 2+/, Cu(NH/sub 3/)/sub 2//sup 2+/ and Cu(NH/sub 3/)/sub 3//sup 2+/ in the solution reaches its maximum. With varied solution pH, the distribution of copper species is the determining factor for maximum adsorption, whereas the surface properties of the adsorbing particles show smaller effects under the test conditions.
- 英文摘要: --
- 中文關鍵字: Adsorption; Amminecopper(Ii); Iron(Iii); Hydroxide; Colloid
- 英文關鍵字: 吸附;氨酮錯合物;三價鐵;氫氧化物;膠體