Synthesis of poly(vinyl alcohol) phosphorylate–dicyandiamide–formaldehyde resin complex and its absorption of rare earth ions
✍ Scribed by Zhi-Xing Su; Yun-Bin Zhou; Xi-Jun Chang; Yi Jin; Shang-Kui Qi
- Publisher
- John Wiley and Sons
- Year
- 2002
- Tongue
- English
- Weight
- 141 KB
- Volume
- 84
- Category
- Article
- ISSN
- 0021-8995
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✦ Synopsis
Abstract
Poly(vinyl alcohol) phosphorylate was prepared and its complex with dicyandiamide–formaldehyde resin was used for adsorption and separation of Sm^3+^, Nd^3+^, Gd^3+^, Ho^3+^, and Er^3+^ ions. The factors that affect the adsorption and separation of these ions on the polyacid–polybase complex, such as the acidity of the sample solution, adsorption capacity, and conditions of desorption, were investigated by means of spectrophotometry and inductively coupled plasma optical emission spectrometry. IR spectrometry and X‐ray photoelectric spectrometry were used to study the adsorption mechanism, and the probably coordination structure was given. © 2002 Wiley Periodicals, Inc. J Appl Polym Sci 84: 962–968, 2002; DOI 10.1002/app.10197