Application of poly(vinylphosphonic acid) modified poly(amidoxime) in uptake of uranium from seawater

Yang, Jingjun; Hou, Guangshun; Chang, Pengxiang; Shao, Dadong

doi:10.1039/d1ra09118b

Cited by 12 publications

(4 citation statements)

References 34 publications

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“…The peaks at ∼133 eV relate to P 2p, confirming the successful synthesis of PVPA/plants (Figures D, S4C, and Table S2). Except O-containing groups, P-containing groups (i.e., −PO 3 H 2 in this work) also work as adsorption sites for U(VI) extraction from seawater. , …”

Section: Resultsmentioning

confidence: 96%

“…Except O-containing groups, P-containing groups (i.e., −PO 3 H 2 in this work) also work as adsorption sites for U(VI) extraction from seawater. 34,35 To evaluate the suitability of PVPA/plants in U(VI) extraction from seawater, the PVPA/pine needle is selected as a representative, and the effect of solution conditions pH, temperature, and ion on the adsorption properties of the PVPA/pine needle was studied in detail. The surface charge of the adsorbent and the existing form of U(VI) are fairly dependent on the solution pH (Figure 3A).…”

Section: Resultsmentioning

confidence: 99%

“…PVPA/ pine needles show excellent U(VI) recovery capabilities even after six cycles (Figure 3F). The −PO 3 H 2 groups on the PVPA/pine needle surface can soundly complex with U(VI), 35 which ensures its high adsorption capabilities for U(VI).…”

Section: Resultsmentioning

confidence: 99%

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Application of Natural Antibacterial Plants in the Extraction of Uranium from Seawater

Zhang,

Gao,

Yuan

et al. 2024

ACS Appl. Bio Mater.

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Marine biofouling directly affects the performance and efficiency of uranium (U(VI)) extraction from seawater. Compared to traditional chemical methods, natural plant extracts are generally biodegradable and nontoxic, making them an environmentally friendly alternative to synthetic chemicals in solving the marine biofouling problem. The effectiveness of natural antibacterial plants (i.e., pine needle, peppermint, Acorus gramineus Soland, Cacumen platycladi, and wormwood) in solving the marine biofouling problem was evaluated in this work. Experimental results showed that natural antibacterial plants could kill Vibrio alginolyticus in solution and effectively solve the marine biofouling problem of U(VI) extraction. To improve the adsorption capacity of natural plants for U(VI) in seawater, poly(vinylphosphonic acid) (PVPA) was modified on natural antibacterial plant surfaces by irradiation grafting technology. PVPA and natural antibacterial plants work as active sites and base materials for the U(VI) extraction material, respectively. The recovery performance of PVPA/pine needle for U(VI) was preliminarily studied. Results show that the adsorption of U(VI) on PVPA/pine needle follows pseudo-second-order and Langmuir models, and the maximum adsorption capacity is 111 mg/g at 298 K and pH 8.2.

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Section: Resultsmentioning

confidence: 96%

Section: Resultsmentioning

confidence: 99%

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Application of Natural Antibacterial Plants in the Extraction of Uranium from Seawater

Zhang,

Gao,

Yuan

et al. 2024

ACS Appl. Bio Mater.

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“…Its polymer polyvinyl phosphate (PVPA) has been widely used in the field of medicine. In order to improve the antibiofouling performance and adsorption capacity of PAO, He et al [42] modified PVPA on the surface of PAO. VPA was polymerized on the surface of polyacrylonitrile (PAN) by N 2 plasma technology.…”

Section: Organic Antibacterial Materialsmentioning

confidence: 99%

Recent Advances in Antibiofouling Materials for Seawater-Uranium Extraction: A Review

Liu,

An,

et al. 2023

Materials

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Nuclear power has experienced rapid development as a green energy source due to the increasing global demand for energy. Uranium, as the primary fuel for nuclear reactions, plays a crucial role in nuclear energy production, and seawater-uranium extraction has gained significant attention. However, the extraction of uranium is usually susceptible to contamination by microorganisms, such as bacteria, which can negatively affect the adsorption performance of uranium adsorption materials. Therefore, an important challenge lies in the development of new antibacterial and antiadhesion materials to inhibit the attachment of marine microorganisms. These advancements aim to reduce the impact on the adsorption capability of the adsorbent materials. This paper reviews the antibiofouling materials used for extracting seawater uranium, and corresponding mechanisms are discussed.

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Spatially confined conjugation of enzyme immobilized magnetic nanochains with poly(vinylphosphonic acid) polymers using droplet reactors for uranium extraction

Shen,

Du,

Wang

et al. 2024

Chemical Engineering Journal

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Application of poly(vinylphosphonic acid) modified poly(amidoxime) in uptake of uranium from seawater

Abstract: Our modified poly(vinylphosphonic acid) (PVPA) enhances the anti-biofouling properties and adsorption capability of poly(amidoxime) (PAO); the PVPA/PAO presents exceptional ability in the selective uptake of U(vi) from seawater.

Cited by 12 publications

References 34 publications

Application of Natural Antibacterial Plants in the Extraction of Uranium from Seawater

Application of Natural Antibacterial Plants in the Extraction of Uranium from Seawater

Recent Advances in Antibiofouling Materials for Seawater-Uranium Extraction: A Review

Spatially confined conjugation of enzyme immobilized magnetic nanochains with poly(vinylphosphonic acid) polymers using droplet reactors for uranium extraction

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