Studies of Ternary Surface Complexes at Liquid–Solid Interfaces in Seawater: III. Comparative Studies of theE(%)–pH Curves and the Diffuse Reflectance IR Spectra of the α-FeOOH–Cu(II)–Tryptophan System
✍ Scribed by Zhang Zhengbin; Wang Wei; Liu Liansheng; Fu Youjun; Wu Zhijian
- Publisher
- Elsevier Science
- Year
- 1997
- Tongue
- English
- Weight
- 190 KB
- Volume
- 190
- Category
- Article
- ISSN
- 0021-9797
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✦ Synopsis
The E(%) -pH curves of the ternary surface complexes at liquid-solid interfaces in the simulated seawater system of a-FeOOH-Cu(II) -tryptophan were determined. The diffuse reflectance IR spectra of the species at the solid surfaces in the above ©S©L©M (Type II), ternary equilibration system were examined. The above two results were comparatively studied. It is shown that the coadsorption of formed. In (2), a new experimental method to determine Cu(II) and tryptophan on a-FeOOH surface results in the formation of the ternary surface complex. Cu(II) can promote the ex-the stability constants of the ternary surface complexes at change adsorption of tryptophan on a-FeOOH surface. The diffuse liquid-solid interfaces in natural water was put forward. reflectance IR spectra can give us some evidence for the structure The above methods are all the traditional thermodynamic of the ternary surface complex, and these results are in accordance equilibration methods. Modern spectrum techniques such as with the results of the E(%) -pH curves.