Low-temperature plasma induced phosphate groups onto coffee residue-derived porous carbon for efficient U(VI) extraction
Abstract
For the continuous utilization of nuclear energy and efficient control of radioactive pollution, low-cost materials with high efficient U(VI) removal are of great importance. In this study, low temperature plasma method was applied for the successful modification of O-phosphorylethanolamine (O-PEA) on the porous carbon materials. The produced materials (Cafe/O-PEA) could adsorb U(VI) efficiently with the maximum sorption capacity of 648.54 mg/g at 1 hr, T=298 K, and pH=6.0, much higher than those of most carbon-based composites. U(VI) sorption was mainly controlled by strong surface complexation. From FTIR, SEM-EDS and XPS analyses, the sorption of U(VI) was related to the complexation with -NH2, phosphate and -OH groups on Cafe/O-PEA. The low temperature plasma method was an efficient, environmentally friendly and low-cost method for surface modification of materials for the effective enrichment of U(VI) from aqueous solutions.
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Cafe/O-PEA has a good sorption capacity for U(VI).
“Cafe/O-PEA has a good sorption capacity for U(VI).”
From Modified biochar: synthesis and mechanism for removal of environmental heavy metals (2022) · cites this paper as Chen et al. (2022)
The maximum sorption capacity of Cafe/O-PEA is 648.54 mg/g at T=298 K and pH=6.0 at 1 h, which is much higher than that of most carbon matrix composites.
“The maximum sorption capacity of Cafe/O-PEA is 648.54 mg · g -1 at T = 298 K and pH = 6.0 at 1 h, which is much higher than that of most carbon matrix composites.”
From Modified biochar: synthesis and mechanism for removal of environmental heavy metals (2022) · cites this paper as Chen et al. (2022)
The sorption of U(VI) is related to the complexation of Cafe/O-PEA with -NH2, phosphate and -OH groups.
“Experimental results show that the sorption of U(VI) is related to the complexation of Cafe/O-PEA with -NH2, phosphate and -OH groups.”
From Modified biochar: synthesis and mechanism for removal of environmental heavy metals (2022) · cites this paper as Chen et al. (2022)
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Self-citation
- Authors
- Chen, Z., He, X., Li, Q., Yang, H., Liu, Y., Wu, L., Liu, Z., Hu, B., & Wang, X.
- Affiliations
- North China Electric Power University (CN)
- Shaoxing University (CN)
- Corresponding author
- Hu, Baowei
- Wang, Xiangke
- Venue
- Journal of Environmental Sciences
- Publisher
- Elsevier BV
- Published
- 2022-12
- Volume
- 122
- Pages
- 1-13
- ISSN
- 1001-0742 (ISSN-L)
- OpenAlex
- W4210802426
- Semantic Scholar
- 887cf528517f3ad0b78bcda8cca31bb48bfa1a0d
- Cited by
- 56
- References
- 64
- Citations by year
- 2026: 5 · 2025: 5 · 2024: 7 · 2023: 18 · 2022: 21
- FWCI
- 4.03
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Journal of Environmental Sciences (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Physical Sciences › Chemistry › Inorganic Chemistry › Radioactive element chemistry and processing
- Physical Sciences › Environmental Science › Water Science and Technology › Adsorption and biosorption for pollutant removal
- Physical Sciences › Environmental Science › Waste Management and Disposal › Chemical Synthesis and Characterization
- Keywords
- uranium(VI) sorption, non-thermal plasma, porous carbon, coffee residues, surface modification, phosphate groups, surface complexation, adsorption, uranium removal from aqueous solutions
- MeSH terms
- Adsorption, Carbon, Coffee, Phosphates, Temperature, Uranium, Porosity
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