Reactions of Cu2+ and Pb2+ with Mg/Al layered double hydroxide

Park, Man; Choi, Choong Lyeal; Seo, Young Jin; Yeo, Sang Kak; Choi, Jun Young; Komarneni, Sridhar; Lee, Jong Hee

doi:10.1016/j.clay.2006.12.006

Cited by 134 publications

(103 citation statements)

References 19 publications

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“…The absorption bands at 1,600 and 1,394 cm -1 are characteristics of the symmetrical and asymmetrical vibration of COOgroups. The position of these bonds is similar to the spectrum of LDHs which is reported by Park et al [25,26]. It is found that EDTA has been intercalated into the interlayer successfully, although a certain amount of -NO 3 may still retain in the compound judging from the results of chemical analysis.…”

Section: IIIsupporting

confidence: 67%

“…They are typical XRD patterns of LDHs. The strong diffraction peaks at low angle, assigned to basal planes (003), (006), (009), were sharp and symmetric compared to the peaks at high angle, which are characteristics of clay mineral shaving a layered structure [25][26][27]. From the XRD pattern, the basal spacing (d) values of Transm itance(% ) 4000 3500 3000 2500 2000 1500 1000 500…”

Section: IIImentioning

confidence: 99%

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Synthesis and Characterization of LDHs (Layered Double Hydroxides) Intercalated with EDTA (Ethylenediaminetetracetic Acid) or EDDS (N, N'-1, 2-Ethanediylbis-1-Aspartic Acid)

Zhang¹,

Kano²,

Inoue³

2016

JESE-A

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Abstract:The hydrotalcite-like compound [Zn 2 Al(OH) 6 ] NO 3 nH 2 O and [Mg 2 Al(OH) 6 ] NO 3 nH 2 O (shorted as ZnAl-NO 3 and MgAl-NO 3 ) was intercalated with the chelating agent EDTA (Ethylenediaminetetraacetic Acid) and EDDS (N, N'-1, 2-Ethanediylbis-1-Aspartic Acid) by anion exchange. The materials synthesized in this work were characterized by chemical analysis, FT-IR (Fourier Transform Infrared Spectroscopy), SEM (Scanning Electron Microscopy) and XRD (Powder X-ray Diffraction) to confirm their properties. In order to discuss the adsorption capacity of LDHs (Layered Double Hydroxides), the adsorption experiment was investigated under the optimum condition (10 mg, 25 °C and 100 μgL -1). The amount of metallic ions adsorbed by LDHs intercalated with EDTA and precursor LDHs were determined by ICP-AES (Inductively Coupled Plasma-Atomic Emission Spectrometry) and AAS (Atomic Absorption Spectrometry). The intercalation of EDTA leads to improve the adsorption capacity of LDHs. LDHs intercalated with chelating agents have generally high affinity for removing metallic ions, and they can be efficient adsorbents for metallic ions.

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Section: IIIsupporting

confidence: 67%

Section: IIImentioning

confidence: 99%

Synthesis and Characterization of LDHs (Layered Double Hydroxides) Intercalated with EDTA (Ethylenediaminetetracetic Acid) or EDDS (N, N'-1, 2-Ethanediylbis-1-Aspartic Acid)

Zhang¹,

Kano²,

Inoue³

2016

JESE-A

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show abstract

“…The position of these bonds in Fig. 1 is similar to that in the spectrum of ZnAl-NO 3 and ZnAl-EDTA which is reported by Park et al [23,24]. It is found that EDTA has been intercalated into the interlayer successfully, although a certain amount of -NO 3 may be retained in the compound based on the chemically analysis results.…”

Section: Synthesis and Characterization Of Ldhsupporting

confidence: 65%

“…2(a) and (b) are typical XRD patterns of LDH. The strong diffraction peaks at low angle due to basal planes (003), (006), (009) were sharp and symmetric compared to the peaks at high angle, which are characteristic of clay minerals having a layered structure [23][24][25].…”

Section: Synthesis and Characterization Of Ldhmentioning

confidence: 98%

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Adsorption of Cd(II) on Zn-Al LDHs (Layered Double Hydroxides) Intercalated with Chelating Agents EDTA

Zhang¹,

Kano²,

Inoue³

2016

JCCE

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Abstract:The hydrotalcite-like compound [Zn 2 Al(OH) 6 ]NO 3 ·mH 2 O (shorted as ZnAl-NO 3 ) was intercalated with the chelating agent EDTA (ethylene diamine tetraacetic acid) by anion exchange to uptake cadmium ion from aqueous solutions. The materials synthesized in this work were characterized by chemical analysis, FT-IR (fourier transform infrared spectroscopy), XRD (X-ray powder diffraction) to confirm their properties. In order to investigate the optimum conditions for Cd(II) adsorption, the amount of Cd(II) adsorbed by Zn-Al LDHs intercalated with EDTA (ZnAl-EDTA) under different conditions (i.e., adsorbent dosage, temperature and contact time) were determined by ICP-AES (inductively coupled plasma-atomic emission spectrometry). Adsorption isotherms of Cd(II) onto ZnAl-EDTA were measured at varying initial Cd concentrations (0.05 mg/L to 1 mg/L) under optimized conditions. The data were applied to Langmuir and Freundlich isotherms model, and well fitted by the Freundlich isotherms model. The pseudo-second-order kinetic model was more adequate to describe the kinetic in this case.

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Metal Oxide and Its Composite Nanomaterials for Electrochemical Monitoring of PTS: Design, Preparation, and Application

Huang

2018

Persistent Toxic Substances Monitoring

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Reactions of Cu2+ and Pb2+ with Mg/Al layered double hydroxide

Cited by 134 publications

References 19 publications

Synthesis and Characterization of LDHs (Layered Double Hydroxides) Intercalated with EDTA (Ethylenediaminetetracetic Acid) or EDDS (N, N'-1, 2-Ethanediylbis-1-Aspartic Acid)

Synthesis and Characterization of LDHs (Layered Double Hydroxides) Intercalated with EDTA (Ethylenediaminetetracetic Acid) or EDDS (N, N'-1, 2-Ethanediylbis-1-Aspartic Acid)

Adsorption of Cd(II) on Zn-Al LDHs (Layered Double Hydroxides) Intercalated with Chelating Agents EDTA

Metal Oxide and Its Composite Nanomaterials for Electrochemical Monitoring of PTS: Design, Preparation, and Application

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