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Adsorption of Natural Organic Polyelectrolytes by Activated Carbon: A Size-Exclusion Chromatography Study
Abstract
The adsorption of several different organic polyelectrolytes from aqueous solution by activated carbon was characterized. Polyelectrolytes included humic acids extracted from peat and soil, polymaleic acid, a synthetic polymer identified as a fulvic acid surrogate, and natural organic matter in Huron River (Ann Arbor, MI) water. Isotherms of individual ultrafiltration size fractions confirmed that smaller molecular size components adsorb to a greater extent on an adsorbent mass basis. The molecular weight distributions of organic polyelectrolytes remaining in solution after equilibration with various amounts of activated carbon were measured with high-performance size-exclusion chromatography (HPSEC). A comparison of molecular weight distributions demonstrated conclusively that small molecular size components are adsorbed preferentially; i.e., adsorptive fractionation on the basis of molecular size occurs. This behavior was observed for each of the wide variety of samples studied, suggesting that it may be a rather general feature of the adsorption of polyelectrolyte mixtures from solution by activated carbon.
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Citations
Cited by
Hyung, H., & Kim, J.-H. (2008) · Environmental Science & Technology · doi:10.1021/es702916h · Cited by 477
Removal of contaminants of emerging concern by metal-organic framework nanoadsorbents: A review
Joseph, L., Jun, B.-M., Jang, M., Park, C. M., Muñoz-Senmache, J. C., Hernández-Maldonado, A. J., Heyden, A., Yu, M., & Yoon, Y. (2019) · Chemical Engineering Journal · doi:10.1016/j.cej.2019.03.173 · Cited by 401
Adsorption of synthetic organic contaminants by carbon nanotubes: A critical review
Apul, O. G., & Karanfil, T. (2015) · Water Research · doi:10.1016/j.watres.2014.09.032 · Cited by 320
Self-citationChen, J., Chen, W., & Zhu, D. (2008) · Environmental Science & Technology · doi:10.1021/es801412j · Cited by 271
Matsui, Y., Yoshida, T., Nakao, S., Knappe, D. R. U., & Matsushita, T. (2012) · Water Research · doi:10.1016/j.watres.2012.06.002 · Cited by 121
Metadata
- Authors
- Kilduff, J. E., Karanfil, T., Chin, Y.-P., & Weber, W. J.
- Venue
- Environmental Science & Technology
- Publisher
- American Chemical Society (ACS)
- Published
- 1996-03-01
- Volume
- 30
- Issue
- 4
- Pages
- 1336-1343
- ISSN
- 0013-936X (ISSN-L)
- 1520-5851
- OpenAlex
- W2053275409
- Cited by
- 196
- References
- 0
- FWCI
- 12.52
- Type
- journal article
- Language
- en
- Open access
- closed
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- Kilduff, J. E., Karanfil, T., Chin, Y.-P., & Weber, W. J. (1996). Adsorption of Natural Organic Polyelectrolytes by Activated Carbon: A Size-Exclusion Chromatography Study. Environmental Science & Technology. https://doi.org/10.1021/es950547r
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