Adsorption Characteristics of a Nanodiamond for Oxoacid Anions and Their Application to the Selective Preconcentration of Tungstate in Water Samples

Sakurai, Hiromu; Ebihara, Noboru; Ōsawa, Eiji; Takahashi, Makoto; Fujinami, Masanori; Oguma, Koichi

doi:10.2116/analsci.22.357

Cited by 26 publications

(9 citation statements)

References 29 publications

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“…For the adsorption of the metal by the functionalized DND, the protocol used was similar to the one described in Ref. . A total of 3 mg of each amidated DND samples was dispersed in 30 ml of standard solutions of Co(NO 3 ) 2 containing 100 ppm solution of Co.…”

Section: Resultsmentioning

confidence: 99%

“…Concerning the last generation of carbon nanostructures, considerably low attention has been paid instead to the use of nanodiamonds for metals recovery. Sakurai et al demonstrated that untreated detonation nanodiamonds (DND) are able to adsorb tungstenate anions on their surface, but, at the best of our knowledge, no further studies have been reported in the literature.…”

Section: Introductionmentioning

confidence: 93%

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Recovery of Co from aqueous solutions using nanodiamonds as solid adsorbents

Reina

Peruzzi

Orlanducci

et al. 2016

Physica Status Solidi (a)

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A study has been carried out to test detonation nanodiamond (DND) as solid adsorbent for the recovery of Co ions from wastewater. With the aim to enhance the surface affinity for Co ions, after preliminary purification and oxidation steps, the DNDs were functionalized with three different diamine chelant molecules. The as prepared materials were characterized via FT‐IR and TGA. Finally, the Co adsorption capacity of DND was obtained by quantifying, by means of UV‐Vis spectroscopy, the residual concentration of Co ions in the solutions. Playing with the surface chemistry of DND it was possible to strongly enhance the DND uptake of cobalt ions, up to a value of about 60%. The proposed process offers flexibility in design and operation and the proper functionalized DNDs demonstrated to be effective solid adsorbent systems for metal recycling. Top left: cartoon of the amidation reaction of the DND surface; top right: thermogravimetric analysis of the pristine and functionalized DNDs; bottom left: scheme of the Co absorption experiments made with the various DNDs in the Co solution, bottom right: UV‐Vis spectra of the various Co standard solutions.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 93%

Recovery of Co from aqueous solutions using nanodiamonds as solid adsorbents

Reina

Peruzzi

Orlanducci

et al. 2016

Physica Status Solidi (a)

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“…Nevertheless, the high limit of detection (10 −3 -10 −4 wt%) as well as the poor quantification strongly limit its development [34]. Spectroscopic analyses of residues formed by combustion of detonation NDs were then reported [35,36]. Drawbacks of this approach are the possible formation of new compounds during annealing and the likely loss of volatile species like nitrogen or sulfur.…”

Section: Puritymentioning

confidence: 99%

Nanodiamonds: From Synthesis and Purification to Deposition Techniques, Hybrids Fabrication and Applications

Arnault

2016

Carbon Nanoparticles and Nanostructures

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The present chapter summarizes the recent advances in the production and the purification methods of nanodiamonds. The different strategies for seeding and patterning of surfaces are detailed. First reports of hybrids based on nanodiamonds are included like core shell particles or decoration with carbon dots or metallic atoms. Finally, an overview of applications for composites and nanomedicine is provided.

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“…So far, however, only a few applications have been reported for metal adsorption and ion-exchange: selective preconcentration of tungstate in water for ICP-AES (Inductively Coupled Plasma -Atomic Emission Spectrometer) measurement [4], and adsorption of several metal ions, especially of radio active nuclide Cs on DND [5]. In Cs adsorption, the effect of surface modification was extensively studied, which is informative for practical application in removal of radio nuclides, on the one hand, and for a valuable understanding of the relation between surface functional groups and the functional efficiency as an adsorbent, on the other hand.…”

Section: Introductionmentioning

confidence: 99%

Effect of Nanodiamond on Removal of Cesium from Soil by Potassium Ferrocyanide

Matsumotoa¹,

Yamatoa²,

Akita³

et al. 2016

AM&T

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Detonation nanodiamond (DND) was examined for its effect on soil Cs + removal by precipitation with Prussian Blue and its analogues. In a preliminary experiment using a synthetic sea-water sample added with 6.6 % of Cs + , it was found that addition of DND, CuCl 2 , and potassium ferrocyanide in this order to the solution removed Cs + with more than 99.9 % efficiency in the supernatant. Based on this finding, Cs + in soil slurry of Fukushima prefecture after the nuclear power plant accident, was treated in the same way as above, and the supernatant was measured for 137Cs γ-ray. The result showed that Cs + was removed to a non-detected level. Since the separation and settling of the precipitation is rapid and coagulation occurs effectively well, filtration is also rapid and can be easily compared to that of the conventional process. Such effect of DND can be due to adsorption of Cs-containing Prussian Blue onto the surface of DND, which finally accelerates precipitation of the Prussian Blue and soil slurry.

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Adsorption Characteristics of a Nanodiamond for Oxoacid Anions and Their Application to the Selective Preconcentration of Tungstate in Water Samples

Cited by 26 publications

References 29 publications

Recovery of Co from aqueous solutions using nanodiamonds as solid adsorbents

Recovery of Co from aqueous solutions using nanodiamonds as solid adsorbents

Nanodiamonds: From Synthesis and Purification to Deposition Techniques, Hybrids Fabrication and Applications

Effect of Nanodiamond on Removal of Cesium from Soil by Potassium Ferrocyanide

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