Raman spectroscopic study of the uranyl sulphate mineral jáchymovite (UO2)8(SO4)(OH)14· 13H2O

Čejka, Jiří; Frost, Ray L.; Sejkora, Jiří; Keeffe, Eloise C.

doi:10.1002/jrs.2227

Cited by 17 publications

(10 citation statements)

References 38 publications

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“…Raman spectroscopy has proven very useful for the study of minerals (7)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18)(19)(20). Indeed, Raman spectroscopy has proven most useful for the study of diagenetically related minerals as often occurs with minerals containing uranyl groups (7-9, 14, 21).…”

Section: Introductionmentioning

confidence: 98%

Raman spectroscopic study of the uranyl titanate mineral betafite (Ca,U)₂(Ti,Nb)₂O₆(OH): effect of metamictization

Frost

Reddy

2010

Radiation Effects and Defects in Solids

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Raman spectra of the uranyl titanate mineral betafite were obtained and related to the mineral structure. A comparison is made with the spectra of uranyl oxyhydroxide hydrates. Observed bands are attributed to the (UO 2 ) 2+ stretching and bending vibrations, U-OH bending vibrations and H 2 O and (OH) − stretching, bending and libration modes. U-O bond lengths in uranyls and O − H · · · O bond lengths are calculated from the wavenumbers assigned to the stretching vibrations. Raman bands of betafite are comparable with those of the uranyl oxyhydroxides. The mineral betafite is metamict as is evidenced by the intensity of the UO stretching and bending modes being of lower intensity than expected and by bands that are significantly broader.

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Section: Introductionmentioning

confidence: 98%

Raman spectroscopic study of the uranyl titanate mineral betafite (Ca,U)₂(Ti,Nb)₂O₆(OH): effect of metamictization

Frost

Reddy

2010

Radiation Effects and Defects in Solids

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“…After Sb(V) adsorption, the stretching vibration of SbAO at 623 cm À1 was observed [43]. In addition, the bands at 1103 cm À1 and 439 cm À1 are C 2v symmetric modes of SO 4 , and 1006 cm À1 is assigned to the asymmetric mode of SO 4 [44].…”

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confidence: 97%

Synthesis of graphene oxide/schwertmannite nanocomposites and their application in Sb(V) adsorption from water

Dong

Dou

Mohan

et al. 2015

Chemical Engineering Journal

101

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h i g h l i g h t sGraphene oxide and schwertmannite were combined into nanocomposites. A synergistic effect on Sb(V) uptake was observed for the composite adsorbent. The schwertmannite component is the main active phase in the composite for Sb(V) uptake. The surface groups of graphene oxide also contributed to Sb(V) adsorption. Schwertmannite was incorporated onto graphene oxide to form nanocomposites (GO-SCH) to serve as an adsorbent for Sb(V) removal. A synergistic effect on Sb(V) uptake was observed for the composite adsorbent. A maximum Sb(V) adsorption capacity of 158.6 mg Sb(V)/g of GO-SCH at an equilibrium Sb(V) concentration of 8.0 mg/L at pH 7.0 was obtained. This capacity is superior to either GO or SCH alone. The effect of contact time, solution pH and co-existing competitive anions on Sb(V) uptake by GO-SCH was evaluated. External mass transfer governed the Sb(V) uptake kinetics within 1 h. After 1 h, intraparticle diffusion gradually became predominant. Common co-existing anions at their natural environmental concentrations had little effect on the performance of GO-SCH. Sb(V) in spiked tap water (100 lg/L), simulated river water (6400 lg/L), and acid mine drainage (50,000 lg/L) was adsorbed by GO-SCH to well below the regulation levels for these waters. XRD and SEM analyses showed that SCH was well incorporated among GO platelets and highly dispersed on the GO carrier's surface. FTIR and Raman spectra showed that both SCH and GO surfaces in the composites contribute to Sb(V) removal and SCH was the main active phase. This was also confirmed by XPS Fe 2p spectra. Sb 3d 3/2 XPS spectra indicated that no surface precipitation or reduction of Sb(V) to Sb(III) occurred. Deconvolution of C 1s XPS spectra and Boehm titration indicated the surface carboxyl, lactonic and phenolic hydroxyl groups of GO also contribute to Sb(V) removal. The outstanding Sb(V) uptake ability of GO-SCH suggests it is a promising adsorbent for antimony removal from contaminated water.

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“…A rapid outdoor nondestructive detection method of organic minerals, which uses a portable Raman spectrometer, is described by Jehlicka et al [186] Frost et al [187] present a Raman spectroscopic study of the mixed anion sulfate-arsenate mineral parnauite Cu 9 [(OH) 10 |SO 4 |(AsO 4 ) 2 ]·7H 2 O. A Raman spectroscopic study of the uranyl sulfate mineral jachymovite (UO 2 ) 8 (SO 4 )(OH) 14 ·13H 2 O was published by Cejka et al, [188] and finally the same set of authors [189] presented a Raman spectroscopic study of the uranyl mineral natrouranospinite (Na 2 ,Ca)[(UO 2 )(AsO 4 )] 2 ·5H 2 O.…”

Section: Mineralsmentioning

confidence: 99%

Recent advances in linear and nonlinear Raman spectroscopy. Part IV

Nafie

2010

J Raman Spectroscopy

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The purpose of the review is to provide a concise overview of recent advances in the broadly defined field of Raman spectroscopy as reflected in part by the many articles published each year in the Journal of Raman Spectroscopy (JRS) as well as in trends across all related journals publishing in this research area. Context for the review is provided by considering statistical data on citations for the Thompson Reuters ISI Web of Science by year and by subfield of Raman spectroscopy. Additional statistics of number of papers and posters presented by category at the XXII International Conference on Raman Spectroscopy (ICORS 2010) is also provided. Papers published in JRS in 2009, as reviewed here, reflect trends at the cutting edge of Raman spectroscopy which is expanding rapidly as a sensitive photonic probe of matter at the molecular level with an ever widening sphere of novel applications.

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Raman spectroscopic study of the uranyl sulphate mineral jáchymovite (UO₂)₈(SO₄)(OH)₁₄· 13H₂O

Cited by 17 publications

References 38 publications

Raman spectroscopic study of the uranyl titanate mineral betafite (Ca,U)₂(Ti,Nb)₂O₆(OH): effect of metamictization

Raman spectroscopic study of the uranyl titanate mineral betafite (Ca,U)₂(Ti,Nb)₂O₆(OH): effect of metamictization

Synthesis of graphene oxide/schwertmannite nanocomposites and their application in Sb(V) adsorption from water

Recent advances in linear and nonlinear Raman spectroscopy. Part IV

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Raman spectroscopic study of the uranyl sulphate mineral jáchymovite (UO2)8(SO4)(OH)14· 13H2O

Cited by 17 publications

References 38 publications

Raman spectroscopic study of the uranyl titanate mineral betafite (Ca,U)2(Ti,Nb)2O6(OH): effect of metamictization

Raman spectroscopic study of the uranyl titanate mineral betafite (Ca,U)2(Ti,Nb)2O6(OH): effect of metamictization

Synthesis of graphene oxide/schwertmannite nanocomposites and their application in Sb(V) adsorption from water

Recent advances in linear and nonlinear Raman spectroscopy. Part IV

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Raman spectroscopic study of the uranyl sulphate mineral jáchymovite (UO₂)₈(SO₄)(OH)₁₄· 13H₂O

Raman spectroscopic study of the uranyl titanate mineral betafite (Ca,U)₂(Ti,Nb)₂O₆(OH): effect of metamictization

Raman spectroscopic study of the uranyl titanate mineral betafite (Ca,U)₂(Ti,Nb)₂O₆(OH): effect of metamictization