Fabrication of hierarchical core-shell polydopamine@MgAl-LDHs composites for the efficient enrichment of radionuclides

Zhu, Kairuo; Lu, Sen; Gao, Yang; Zhang, Rui; Tan, Xiaoli; Chen, Changlun

doi:10.1016/j.apsusc.2016.11.230

Cited by 63 publications

(33 citation statements)

References 41 publications

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“…最近, Zhang等 [23] 发现香豆素改性的Zn-MOF-74对U(VI)表现出巨大的去除能力(360 mg/g). Yin等 [24] 应用三聚氰胺 [25] . 由于高比表面积、独特的层状纳米结构、丰富的官能团和离子交换能力, LDHs材料已经被应用于吸附领域 [26] .…”

Section: 引言unclassified

Enhanced removal of uranium(VI) from aqueous solution by a novel LDH@MOF-76 composite

Lv¹,

Yang²,

Chen³

et al. 2018

Sci. Sin.-Chim

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In this article, LDH@MOF-76 composite was successfully prepared by using a hydrothermal method and applied for the sorption of U(VI) from aqueous solution. The as-prepared composite displayed a typical porous and rodlike structure. The sorption performance of LDH@MOF-76 toward U(VI) was investigated by batch experiments. The results indicated that the LDH@MOF-76 could rapidly and effectively remove U(VI) from aqueous solution, with an excellent sorption capacity (433.91 mg/g), which is much higher than pure LDH (107.21 mg/g) and MOF-76

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Section: 引言unclassified

Enhanced removal of uranium(VI) from aqueous solution by a novel LDH@MOF-76 composite

Lv¹,

Yang²,

Chen³

et al. 2018

Sci. Sin.-Chim

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“…9,10 In turn, this diversity ts well with some applications that need a wide set of functional groups facilitating PDA ability for chemical transformation/tailoring 8,11,12 as well as in removal of organic compounds or removal/accumulation of heavy metals/radionuclides from aqueous media. 7,[13][14][15][16] Among currently known PDA applications, the environmental eld can be considered as extremely important because of an inevitable release of pollutants from industry, nuclear stations and waste disposal facilities, as well as of a possible recovery of radioactive elements from natural sources in GW and SW. Initially, such PDA applicability was suggested on the basis of the above-mentioned mussel-like functionalities, which are prone to form adhesion bonds with different surfaces through noncovalent metal coordination or chelating, hydrogen bonding, p-p stacking, cation-p interactions and quinhydrone charge-transfer complexes.…”

Section: Introductionmentioning

confidence: 99%

“…While only few papers demonstrate the applicability of pure PDA for the heavy metal removal, 16,18 in most cases it is used in a form of its (nano)composites to get high surface contacts with solutions of the pollutants and probably synergistic enhancement of the absorptionas compared with the pure PDA. 6,7,[13][14][15]19,20 Quite impressive results in the nanocomposites case have been demonstrated, especially when it comes for removal of some radionuclides (e.g. uranium and plutonium) from water media.…”

Section: Introductionmentioning

confidence: 99%

High effectiveness of pure polydopamine in extraction of uranium and plutonium from groundwater and seawater

et al. 2019

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“…Among all kinds of extraction methods, such as adsorption 1 , 5 – 7 , ion exchange 8 – 10 , chemical reduction 11 , 12 , biological processes 13 , 14 and membrane processes 15 – 17 , adsorption has been widely employed to enrich uranyl form aqueous due to its low cost, simple design, and ease of operation. Recently, various kinds of organic adsorbents (such as such as amidoxime 18 – 20 , amine 21 – 23 , carboxylates 24 – 26 functionalized adsorbents) and inorganic adsorbents (such as mesoporous Mg(OH) 2 27 – 29 , zero-valent iron 30 , 31 and other functionalized inorganic adsorbents 32 , 33 ) have been developed.…”

Section: Introductionmentioning

confidence: 99%

Functionalized Sugarcane Bagasse for U(VI) Adsorption from Acid and Alkaline Conditions

Liu

et al. 2018

Sci Rep

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The highly efficient removal of uranium from mine tailings effluent, radioactive wastewater and enrichment from seawater is of great significance for the development of nuclear industry. In this work, we prepared an efficient U(VI) adsorbent by EDTA modified sugarcane bagasse (MESB) with a simple process. Uranium is a vital commodity for nuclear energy, using as fuel for electricity generation. However, mine tailings effluent and wastewater from nuclear industry are seriously harmful for ecological and human health due to its radiochemical and toxicological 1,2 . Moreover, extraction of uranium from unconventional resource such as seawater, which is nearly 1000 times higher than that available in terrestrial ores 3,4 , has received recent attention. Hence, the highly efficient enrichment of uranium from mine tailings effluent, radioactive wastewater and seawater is of great significance for the development of nuclear industry. Among all kinds of extraction methods, such as adsorption 1,[5][6][7] , ion exchange [8][9][10] , chemical reduction 11,12 , biological processes 13,14 and membrane processes [15][16][17] , adsorption has been widely employed to enrich uranyl form aqueous due to its low cost, simple design, and ease of operation. Recently, various kinds of organic adsorbents (such as such as amidoxime [18][19][20] ) have been developed. However, few adsorbent could be applied in all of mine tailings effluent, radioactive wastewater and seawater. The extraction is limited by some reasons: (1) in seawater 36,37 , (2) the concentration of uranium is in a wide range concentrations (mg/L-μg/L), (3) there are large amount of competing metal ions, such as sodium, potassium, magnesium and calcium, and (4) adsorbent should have a great chemical and structural stability in both acidic (mine tailings effluent and radioactive wastewater) and alkaline (seawater) environment. Therefore, an adsorbent with remarkable adsorption properties and stability is necessary.Agricultural waste materials are of particular interest since they are produced in great amounts and available worldwide [38][39][40][41][42][43] . These materials represent an interesting and attractive alternative as biosorbents because of their physico-chemical characteristic, particular structure, chemical stability, and high reactivity resulting from the presence of abundance functional groups on the surface. Moreover, it is well known that agricultural waste materials are renewable and biodegradable. In the application of adsorption, the excellent performance of different

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Fabrication of hierarchical core-shell polydopamine@MgAl-LDHs composites for the efficient enrichment of radionuclides

Cited by 63 publications

References 41 publications

Enhanced removal of uranium(VI) from aqueous solution by a novel LDH@MOF-76 composite

Enhanced removal of uranium(VI) from aqueous solution by a novel LDH@MOF-76 composite

High effectiveness of pure polydopamine in extraction of uranium and plutonium from groundwater and seawater

Functionalized Sugarcane Bagasse for U(VI) Adsorption from Acid and Alkaline Conditions

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