Direct extraction of U(VI) from a simulated saline solution by alkali-activated collagen fiber

Deng, Guohong; Luo, Xin; Yang, Jiayi

doi:10.1007/s10967-018-6083-y

Cited by 14 publications

(4 citation statements)

References 32 publications

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“…Deng and co‐workers prepared the CFs‐based separation materials for U(VI) adsorption through a simple activation of CFs by NaOH solution. [ 152 ] In their work, the number of functional groups in CFs was increased after alkali activation, thus effectively enhancing the capacity for adsorptive separation of U(VI). As demonstrated by the adsorption experiments, the alkali activated CFs displayed high adsorption performance for U(VI) in a high salinity environment with the adsorption capacity of 182.27 mg g –1 , which showed the possibility for extraction of U(VI) from seawater.…”

Section: Adsorptive Separation Of Metal Ionsmentioning

confidence: 99%

“…[135][136][137][138][139][140] The noncovalent binding ability of CFs with plant polyphenols provided facile alternatives for adsorptive separation of metal ions. [141][142][143][144][145][146][147][148][149][150][151][152][153][154][155][156] The coordinating ability of CFs with metal ions permitted convenient tuning of their surfaces charges and the binding sites for the separation of anionic contaminants, [157][158][159][160][161][162][163][164][165][166] as well as, the purification of proteins. [167,168] The approaches available for the functionalization of CFs are summarized in Table 1.…”

Section: Introductionmentioning

confidence: 99%

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Collagen Fiber‐Based Advanced Separation Materials: Recent Developments and Future Perspectives

et al. 2022

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Separation plays a critical role in a broad range of industrial applications. Developing advanced separation materials is of great significance for the future development of separation technology. Collagen fibers (CFs), the typical structural proteins, exhibit unique structural hierarchy, amphiphilic wettability, and versatile chemical reactivity. These distinctive properties provide infinite possibilities for the rational design of advanced separation materials. During the past 2 decades, many progressive achievements in the development of CFs‐derived advanced separation materials have been witnessed already. Herein, the CFs‐based separation materials are focused on and the recent progresses in this topic are reviewed. CFs widely existing in animal skins display unique hierarchically fibrous structure, amphiphilicity‐enabled surface wetting behaviors, multi‐functionality guaranteed covalent/non‐covalent reaction versatility. These outstanding merits of CFs bring great opportunities for realizing rational design of a variety of advanced separation materials that were capable of achieving high‐performance separations to diverse specific targets, including oily pollutants, natural products, metal ions, anionic contaminants and proteins, etc. Besides, the important issues for the further development of CFs‐based advanced separation materials are also discussed.

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Section: Adsorptive Separation Of Metal Ionsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Collagen Fiber‐Based Advanced Separation Materials: Recent Developments and Future Perspectives

et al. 2022

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“…Therefore, collagen fibers can maintain the stability of their structure for a long time in seawater. 32 On the other hand, collagen fibers are also hydrophilic and insoluble in water, which is not achieved by many synthetic polymers. 33 This ingeniously solves the problem that synthetic polymers cannot have both hydrophilicity and stability.…”

Section: Introductionmentioning

confidence: 99%

“…In the tanning process, the main preservation method of raw leather is salting preservation, the higher the salt concentration, the longer the preservation. Therefore, collagen fibers can maintain the stability of their structure for a long time in seawater . On the other hand, collagen fibers are also hydrophilic and insoluble in water, which is not achieved by many synthetic polymers .…”

Section: Introductionmentioning

confidence: 99%

Phosphate-Functionalized Fibrous Adsorbent for Effectively Extracting Uranium from Seawater

Lin

Chen

et al. 2022

Ind. Eng. Chem. Res.

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Uranium is a basic and strategic resource related to national development and security. The uranium resources contained in the ocean are thousands of times that in the land, up to about 4.5 billion tons. However, it is still a severe challenge for the extraction of uranium from seawater as it contains trace amounts of uranium and a large number of cations. Herein, a new uranium extraction material, phosphate-functionalized collagen fibers, was prepared by a “covalent cross-linking” method by grafting the phosphate functional groups onto the surface of collagen fibers (CF) with a multihierarchy structure and multiple functional groups. The special structure of CF makes the adsorbent exhibit multistage kinetics and is controlled by chemisorption and layer diffusion. Through the introduction of amino and phosphoric acid functional groups, collagen fiber-alendronate sodium trihydrate (CF-AST) exhibits high-efficiency adsorption for uranium with the maximum adsorption reaching 277.78 mg g–1. In the extraction test from the East China Sea, CF-AST displayed a total uranium extraction mass of 29.61 μg after processing 10 L of seawater with an extraction rate of 89.69%. This adsorbent has shown superiorities in selectivity, kinetics, capacity, and reproducibility of uranium separation and enrichment from seawater, which is an economically viable and industrially scalable realistic uranium extraction material.

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Electrospun gelatin nanofibers in situ composite with ZIF-67 for eco-friendly and efficient uranium removal

Dai,

Fang

et al. 2024

J Radioanal Nucl Chem

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Direct extraction of U(VI) from a simulated saline solution by alkali-activated collagen fiber

Cited by 14 publications

References 32 publications

Collagen Fiber‐Based Advanced Separation Materials: Recent Developments and Future Perspectives

Collagen Fiber‐Based Advanced Separation Materials: Recent Developments and Future Perspectives

Phosphate-Functionalized Fibrous Adsorbent for Effectively Extracting Uranium from Seawater

Electrospun gelatin nanofibers in situ composite with ZIF-67 for eco-friendly and efficient uranium removal

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