Influences of Ferric Hydroxide Prepared with addition of Citrate/Silicate on Adsorption of As(V)/Cd(II)

• Main Authors: Ming-Chang Hsiao, 蕭明昌
• Other Authors: Jacob Chun-Hsiung Kuei
• Format: Others
• Language: zh-TW
• Published: 2008
• Online Access: http://ndltd.ncl.edu.tw/handle/07665070797399656616

碩士 === 國立成功大學 === 化學系專班 === 96 === This study is to discuss with the surface characteristics, crystalline identification and inner structural changes of the Ferric Hydroxide which are prepared with pure Fe(Ⅲ), citrate/Fe(Ⅲ) and silicate/Fe(Ⅲ) solutions at different molar ratios. This study is also to compared the adsorption capabilities of these Ferric Hydroxide serving as the adsorptive materials in containing As(V)/Cd(II) solutions through adsorption experiment.. By means of the XRD identification analysis, the synthetic iron oxides of pure Fe(Ⅲ) and silicate/Fe(Ⅲ) are non-crystal Ferric Hydroxide, but the synthetic iron oxide of citrate/Fe(Ⅲ) is crystal Ferric Hydroxide. The inner structural will be changed which prepared with citrate/Fe(Ⅲ) solutions It can not find change of functional groups by using FT-IR in the Cd(II) adsorption system. We can only refer to this system is not Specific adsorption. It can find change of functional groups by using FT-IR in the As(V) adsorption system. And it shows the similar trend with adsorption amount of arsenic. We can refer to this system is Specific adsorption.