Preparation of Cu–Al layered double hydroxide intercalated with ethylenediaminetetraacetate by coprecipitation and its uptake of rare earth ions from aqueous solution

Kameda, Tomohito; Hoshi, Kazuaki; Yoshioka, Toshiaki

doi:10.1016/j.solidstatesciences.2012.12.010

Cited by 30 publications

(10 citation statements)

References 25 publications

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“…For example, the coprecipitation method is used to synthesis LDH intercalated with EDTA. When the pH value is 8.0, 9.0, and 10.0, the basal spacing between the layers is 15.2, 15.1, and 14.7 Å, respectively [78]. This basal spacing is also different from 7.9 to 13.9 Å, as shown in Table 4.…”

Section: Intercalationmentioning

confidence: 93%

Functionalized layered double hydroxide applied to heavy metal ions absorption: A review

Tang

Qiu

Lü

et al. 2020

Nanotechnology Reviews

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The use of functional material can help mitigate the pollution by heavy metals, which presents an array of risks to human production and life. This work provides a comprehensive review of the current knowledge on functionalized layered double hydroxide (LDH) as a heavy metal absorption material, by synthesizing the information from a total of 141 relevant publications published since 2005. LDH provides a potentially highly efficient method to adsorb heavy metal ions, which is simple to prepare and of low cost. The lack of functional groups and structural components of pristine LDH, however, limits the absorption capacity and widespread applications of LDH. Through intercalation, surface modification, or loading on substrates, functional groups or structural components are introduced into the pristine LDH to prepare functionalized LDH. In this process, the hydroxyl group and the valence state of [Mg(OH)6] octahedrons play a crucial role. Functionalized LDH can be endowed with selective absorption capacity and enhanced stability and recyclability. After adsorbing heavy metal ions, functionalized LDH can be readily separated from the liquid phase. These aspects are discussed, along with the structure and composition, shape and size, and synthesis methods and research tools of LDH. This work concludes with the discussion of preparation and utilization and a look to the future in terms of identified research needs regarding the preparation, use, and recycling (or upcycling) of economical and environmental-friendly LDH.

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Section: Intercalationmentioning

confidence: 93%

Functionalized layered double hydroxide applied to heavy metal ions absorption: A review

Tang

Qiu

Lü

et al. 2020

Nanotechnology Reviews

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“…Under the circumstances, nickel-based LDHs are suggested to be the electrode materials for alkaline secondary battery in order to increase configurational stability of α-Ni(OH)2. The Ni 2+ in Ni(OH)2 host layer are partly substituted by metal ion like Al 3+ [229][230][231][232], Co 3+ [233,234], Fe 3+ [235,236], Zn 2+ [237,238], Mn 3+ [236,239], or Y 3+ [240], in the nickel-based LDHs. Among these fungible metal ion, Al 3+ is thought to be the best candidate for its good electrochemical suitability [230].…”

Section: Micro/nanostructured Al-based Materials For Nickel-metal Hydmentioning

confidence: 99%

Aluminum-based materials for advanced battery systems

Qiu

Zhao

et al. 2017

Sci. China Mater.

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There has been increasing interest in developing micro/nanostructured aluminum-based materials for sustainable, dependable and high-efficiency electrochemical energy storage. This review chiefly discusses the aluminum-based electrode materials mainly including Al2O3, AlF3, AlPO4, Al(OH)3, as well as the composites (carbons, silicons, metals and transition metal oxides) for lithium-ion batteries, the development of aluminum-ion batteries, and nickel-metal hydride alkaline secondary batteries, which summarizes the methodologies, related charge-storage mechanisms, the relationship between nanostructures and electrochemical properties found in recent years, latest research achievements and their potential applications. In addition, we raise the relevant challenges in recently developed electrode materials and put forward new ideas for further development of micro/nanostructured aluminum-based materials in advanced battery systems.

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“…The affinity of LDH compounds towards REEs was investigated by several authors, often with the intercalation of organic complexes inside the interlayer [ 21 , 22 , 23 ]. In any case, the specific capacity of woodwardite to scavenge REEs from solutions is suggested by the work of Kameda et al [ 24 ]. In that work, a Cu-Al LDH intercalated with ethylenediaminetetraacetate (EDTA) was used to scavenge Sc, La, and Y from solution, and the results suggested that synthetic Cu-Al LDH was able to also scavenge Y in its pure form.…”

Section: Introductionmentioning

confidence: 99%

A Novel Synthesis Routine for Woodwardite and Its Affinity towards Light (La, Ce, Nd) and Heavy (Gd and Y) Rare Earth Elements

Consani

Balić-Žunić²,

Cardinale

et al. 2018

Materials

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A synthetic Cu-Al-SO4 layered double hydroxide (LDH), analogue to the mineral woodwardite [Cu1−xAlx(SO4)x/2(OH)2·nH2O], with x < 0.5 and n ≤ 3x/2, was synthesised by adding a solution of Cu and Al sulphates to a solution with NaOH. The pH values were kept constant at 8.0 and 10.0 by a continuous addition of NaOH. The material obtained had poor crystallinity, turbostratic structure, and consisted of nanoscopic crystallites. The analyses performed in order to characterise the obtained materials (X-ray diffraction (XRD), thermogravimetry (TG), and Fourier Transform Infra-Red (FTIR) spectroscopy) showed that the Cu-Al-SO4 LDH is very similar to woodwardite, although it has a smaller layer spacing, presumably due to a lesser water content than in natural samples. The synthesis was performed by adding light rare earth elements (LREEs) (La, Ce, and Nd) and heavy rare earth elements (HREEs) (Gd and Y) in order to test the affinity of the Cu-Al-SO4 LDH to the incorporation of REEs. The concentration of rare earth elements (REEs) in the solid fraction was in the range of 3.5–8 wt %. The results showed a good affinity for HREE and Nd, especially for materials synthesised at pH 10.0, whereas the affinities for Ce and La were much lower or non-existent. The thermal decomposition of the REE-doped materials generates a mixture of Cu, Al, and REE oxides, making them interesting as precursors in REE oxide synthesis.

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Preparation of Cu–Al layered double hydroxide intercalated with ethylenediaminetetraacetate by coprecipitation and its uptake of rare earth ions from aqueous solution

Cited by 30 publications

References 25 publications

Functionalized layered double hydroxide applied to heavy metal ions absorption: A review

Functionalized layered double hydroxide applied to heavy metal ions absorption: A review

Aluminum-based materials for advanced battery systems

A Novel Synthesis Routine for Woodwardite and Its Affinity towards Light (La, Ce, Nd) and Heavy (Gd and Y) Rare Earth Elements

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