The DOI matches its Crossref record; 59 of the 59 references it cites were found in a registry or an index.
Graphene oxide encapsulated polyvinyl alcohol/sodium alginate hydrogel microspheres for Cu (II) and U (VI) removal
Abstract
In this work, a novel sodium alginate (SA)/polyvinyl alcohol (PVA)/graphene oxide (GO) hydrogel microspheres were prepared by a simple method. Sodium alginate was physically crosslinked by Ca 2+; GO was encapsulated into the composite to strengthen the hydrogels; PVA played a significant role in well dispersing of GO in SA. The SA/PVA/GO (SPG) hydrogels were employed as an efficient adsorbent for removal of Cu (II) and U (VI) from aqueous solution. Batch experiments with the subject of the pH, initial metal ion concentration, competing ions and contact time were investigated. Structure characterization was successfully conducted by FTIR, SEM, EDX, BET and XPS. Furthermore, the sorption kinetics of Cu 2+ and UO 22+ followed pseudo-second order model and exhibited 3-stage intraparticle diffusion model. Equilibrium data were best described by Langmuir model and the obtained maximum adsorption capacities of SPG hydrogel microspheres for Cu 2+ and UO 22+ were 247.16 and 403.78 mg/g, respectively. The difference in adsorption capacity can be confirmed by the percentage of elements in EDX spectra and the intension of peak of elements in XPS spectra. The SPG sorbent exhibited excellent reusability after 5 adsorption-desorption cycles. All results suggested that the prepared adsorbents could be considered as effective and promising materials for removal of Cu (II) and U (VI) in wastewater.
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“| UO 2 2+ | SPG | 403.8 | 48 |”
From Removal of heavy metal ions from wastewater: a comprehensive and critical review (2021) · cites this paper as [48]
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2 retracted
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RetractedImproved Synthesis of Graphene Oxide
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Insights into the modeling of adsorption isotherm systems
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A novel facial composite adsorbent for enhanced copper(II) detection and removal from wastewater
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Arsenic Removal Using Mesoporous Alumina Prepared via a Templating Method
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Folding/aggregation of graphene oxide and its application in Cu2+ removal
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Ray, P., Hoque, M. E., & Ali, M. A. (2023) · Elsevier eBooks · doi:10.1016/b978-0-12-823551-5.00014-8
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Magdum, P., & Itankar, N. (2026) · Discover Applied Sciences · doi:10.1007/s42452-026-09122-x
Amidoxime-functionalized SA-GQDs composite gel microspheres for efficient uranium adsorption
Gao, J., Zhuang, D., Bt, Y., Fa, Y., Zhang, W., Xb, H., Li, H., & Feng, M. (2026) · Colloids and Surfaces A Physicochemical and Engineering Aspects · doi:10.1016/j.colsurfa.2026.141366
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Guo, T., & Bulin, C. (2026) · Separation and Purification Technology · doi:10.1016/j.seppur.2026.139796
Ye, Q., Yang, Y., An, Q., 周银松, Zeng, Y., Wang, L., Guan, H., Du, Y., Zhang, Z., Chen, X., et al. (2026) · Biochemical Engineering Journal · doi:10.1016/j.bej.2026.110457
Metadata
- Authors
- Yi, X., Sun, F., Han, Z., Han, F., He, J., Ou, M., Gu, J., & Xu, X.
- Affiliations
- Fuzhou University (CN)
- Corresponding author
- Yi, Xiaofeng
- Xu, Xiaoping
- Venue
- Ecotoxicology and Environmental Safety
- Publisher
- Elsevier BV
- Published
- 2018-08
- Volume
- 158
- Pages
- 309-318
- ISSN
- 0147-6513 (ISSN-L)
- OpenAlex
- W2802970574
- Cited by
- 214
- References
- 59
- Citations by year
- 2026: 14 · 2025: 20 · 2024: 31 · 2023: 30 · 2022: 32 · 2021: 36 · 2020: 23 · 2019: 21 · 2018: 7
- FWCI
- 9.51
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Ecotoxicology and Environmental Safety (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Physical Sciences › Environmental Science › Water Science and Technology › Adsorption and biosorption for pollutant removal
- Physical Sciences › Chemistry › Inorganic Chemistry › Radioactive element chemistry and processing
- Physical Sciences › Environmental Science › Water Science and Technology › Coagulation and Flocculation Studies
- Keywords
- graphene oxide, polyvinyl alcohol, sodium alginate, hydrogel microspheres, heavy metal adsorption, copper removal, uranium removal, adsorption kinetics, adsorption isotherms, adsorbent reusability, wastewater treatment, calcium crosslinking
- MeSH terms
- Alginates, Copper, Graphite, Hexuronic Acids, Hydrogen-Ion Concentration, Microspheres, Oxides, Polyvinyl Alcohol, Uranium, Uranium Compounds, Hydrogels, Glucuronic Acid, Wastewater
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