Synthesis of layered titanate nanowires at low temperature and their application in efficient removal of U(VI)

Liu, Yin; Wang, Pengyi; Wen, Tao; Yu, Shujun; Wang, Xiangxue; Hayat, Tasawar; Alsaedi, Ahmed; Wang, Xiangke

doi:10.1016/j.envpol.2017.03.078

Cited by 132 publications

(23 citation statements)

References 45 publications

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“…For example, for the nanowire of radius = 100Å, this region is around ℎ 0 = 82. 6 for = 2 and ℎ 0 = 35.1 and ℎ 0 = 231.5 for = 3. Despite these slight variations, as the inverse parabolic potential increases, the third-order AC at resonance does not vary much, and for this case it is in the vicinity of ∼−4 × 10 4 / .…”

Section: Resultsmentioning

confidence: 99%

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Optical Properties of GaAs Nanowires with an Electric Potential That Varies Inversely with the Square of the Radial Distance

Tshipa

2019

Advances in Condensed Matter Physics

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A theoretical investigation of optical properties of a cylindrical quantum wire (CQW) is presented. The properties studied were optical absorption coefficient (AC) and change in refractive index (CRI) of the quantum wire. In particular, effect of an inverse parabolic potential on the optical properties of CQWs was investigated. This was done by solving the Schrödinger equation within the effective mass approximation to obtain the wave functions. The inverse parabolic potential reduces transition energies and therefore redshifts peaks of the AC, as well as the anomalous dispersion region of the dependence of change in refractive index on the photon energy. The inverse parabolic potential also has effect on the magnitudes of these optical quantities, reducing the AC and enhancing the CRI. These properties of the inverse parabolic confining electric potential can have a wide range of applications in nanodevice technology, some details of which are discussed.

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Section: Resultsmentioning

confidence: 99%

“…Silicon nanoribons have also been used as biosensors to detect carcinoembryonic antigen [5]. The potential of titanate nanowires to remove Uranium (VI) from the environment has been investigated [6]. Some nanowires have shown great potential to be used as photocatalysts as in the case of zinc oxide nanowires [7].…”

Section: Introductionmentioning

confidence: 99%

Optical Properties of GaAs Nanowires with an Electric Potential That Varies Inversely with the Square of the Radial Distance

Tshipa

2019

Advances in Condensed Matter Physics

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“…) Q m (mg/g)Sorbents (ref. ) Q m (mg/g)AMGO 34 123.40Al 2 O 3 nanofibres 35 204.10Fe-SC 36 148.99Fe 3 O 4 @TiO 2 37 118.80Fe 3 O 4 /GO 38 69.49Layered double oxides/carbon 39 354.2Magnetic cucurbit[6]uril/GO 40 122.50g-C 3 N 4 @Ni-Mg-Al-LDH 41 99.7Oxime-grafted CMK-5 42 62.00 l -C 3 N 4 /PDA/PEI 3 43 60.51Polyacrylamide–hydroxyapatite 44 0.95TiO 2-x 45 65Polypyrrole 46 87.72CaTiO x ; CaAlO x 47 241.7; 258.29Amidoxime modified Fe 3 O 4 @SiO 2 48 105.50Titanate 49 358Modified silica gel 50 90.30CNFs 51 125Birnessite-modified pine biochar 52 47.05p-AO/ CNFs; c-AO/CNFs 53 588.24; 263.18Talc 54 41.60RUB-15 55 152MnO 2 –Fe 3 O 4 –RGO 56 108.70GO-CS-P 57 779.44SA/CMC-Ca-Al 58 101.76Ca/Al-LDH@CNTs 59 382.9Phosphate-modified pine wood sawdust 60 74.10GO (Present study)16.03GOMO (Present study)153.85…”

Section: Resultsmentioning

confidence: 99%

Facile preparation and adsorption performance of graphene oxide-manganese oxide composite for uranium

Yang

Zhu

Huang

2018

Sci Rep

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To overcome the limits of low adsorption capacity and the separation difficulty of solid from liquid phase for graphene oxide (GO), a novel nanocomposite graphene oxide-manganese oxide (GOMO) was facilely fabricated under ultrasonic radiation. The structures and micro-morphology of the products were characterized by fourier transform infrared (FT-IR) spectroscopy, raman shift spectroscopy, X-ray diffraction (XRD) pattern and scanning electron microscopy (SEM). The effect of solution pH, adsorbent dose, contact time, initial uranium concentration, ionic strength and temperature on uranium removal efficiency was studied by batch adsorption experiments. The product GOMO was used to examine the feasibility of the removal of high salt content in uranium-containing wastewater. The adsorption results were fitted using the Langmuir and Freundlich isotherm models. The kinetic parameters in the adsorption process were measured and fitted. Five adsorption/desorption cycles were performed using 3 M HNO3 as the regenerant in order to evaluate the reuse of GOMO.

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“…The N 1s (Figure not shown) envelope contains peaks at 398.8, and 400.8 eV which can be assigned to N–sp 3 C, and N–sp 2 C, respectively . The O 1s spectrum shows three peaks at 530.2, 531.6 and 532.9 eV and it can be assigned to C‐OH and Zr−O, ‐OH, C−O or C=O respectively ,,. Furthermore, Zr 3d spectrum was deconvoluted into two peaks with binding energies 181.3 and 183.4 eV corresponding to Zr 3d 3/2 and Zr 3d 5/2 , respectively ,.…”

Section: Resultsmentioning

confidence: 99%

Probing the Interaction between Fluoride and the Polysaccharides in Al(III)- and Zr (IV)-Modified Tea Waste by Using Diverse Analytical Characterization Techniques

et al. 2017

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The objective of this study was to assess the efficacy of interaction between fluoride and a household tea waste (HTW) material modified using aluminium sulfate and zirconyl oxy chloride. Tea waste is an inexpensive source of biomass comprising lignin, cellulose and hemicelluloses, condensed tannins and proteins. The incorporation of Al (III) and Zr (IV) was accomplished by dilute nitric acid hydrolysis of the tea waste material. The polymeric aluminium and zirconium cations interact with tea waste through the surface hydroxyl, carbonyl, carboxylic functional groups and glycosidic linkages. Since, Al (III) and Zr (IV) ion are hard acids, they interact with the hard base fluoride effectively. The mechanism was supported through Thermogravimetric analysis (TGA), Fourier Transform Infra‐Red (FT‐IR) spectrometry, Fourier Transform Raman (FT‐Raman) spectrometry, Energy Dispersive X ray spectrometry (EDS), X‐ray Diffraction (XRD) and X‐ray Photo Electron Spectroscopy (XPS) techniques. Preliminary batch adsorption studies resulted in linear and nonlinear Langmuir adsorption capacities as 17.51 and 17.54 mg g−1 respectively at pH 7.0. The sustainable adsorbent shows prospective application for defluoridation of water.

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Synthesis of layered titanate nanowires at low temperature and their application in efficient removal of U(VI)

Cited by 132 publications

References 45 publications

Optical Properties of GaAs Nanowires with an Electric Potential That Varies Inversely with the Square of the Radial Distance

Optical Properties of GaAs Nanowires with an Electric Potential That Varies Inversely with the Square of the Radial Distance

Facile preparation and adsorption performance of graphene oxide-manganese oxide composite for uranium

Probing the Interaction between Fluoride and the Polysaccharides in Al(III)- and Zr (IV)-Modified Tea Waste by Using Diverse Analytical Characterization Techniques

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