The reduction adsorption of silver diamminonitrate on different kinds of activated carbon fibers (ACF) has been studied in this paper. The effect of different parameters, including adsorption temperature, concentratio...The reduction adsorption of silver diamminonitrate on different kinds of activated carbon fibers (ACF) has been studied in this paper. The effect of different parameters, including adsorption temperature, concentrations of activation agents, and activation time on the silver adsorption capacities of activated carbon fibers has been investigated. The results show that higher temperature in which the silver complex interacts with ACF, or higher concentration of activation agent, will make higher reduction adsorption capacities of ACFs. More over, ACFs activated with phosphoric acid have higher reduction capacities than those activated with zinc chloride or steam.展开更多
Organic chelating reagent influences upon the redox adsorption of activated carbon fiber towards Au3+ were systematically investigated. The experimental results indicated that the presence of organic chelating reagent...Organic chelating reagent influences upon the redox adsorption of activated carbon fiber towards Au3+ were systematically investigated. The experimental results indicated that the presence of organic chelating reagent on activated carbon fiber strongly affects adsorption capacity of activated carbon fiber towards Au3+. The reduction-adsorption amount of Au3+ increased three times by the presence of 8-quinolinol. Furthermore, The reduction-adsorption amount of Au3+ depended on the pH value of adsorption and temperature.展开更多
基金Doctor Program Foundation of the Ministry of Education of China
文摘The reduction adsorption of silver diamminonitrate on different kinds of activated carbon fibers (ACF) has been studied in this paper. The effect of different parameters, including adsorption temperature, concentrations of activation agents, and activation time on the silver adsorption capacities of activated carbon fibers has been investigated. The results show that higher temperature in which the silver complex interacts with ACF, or higher concentration of activation agent, will make higher reduction adsorption capacities of ACFs. More over, ACFs activated with phosphoric acid have higher reduction capacities than those activated with zinc chloride or steam.
基金Chinese Ministry of Education Doctor Fund No.: 2000055804.
文摘Organic chelating reagent influences upon the redox adsorption of activated carbon fiber towards Au3+ were systematically investigated. The experimental results indicated that the presence of organic chelating reagent on activated carbon fiber strongly affects adsorption capacity of activated carbon fiber towards Au3+. The reduction-adsorption amount of Au3+ increased three times by the presence of 8-quinolinol. Furthermore, The reduction-adsorption amount of Au3+ depended on the pH value of adsorption and temperature.
