Adsorption of Sr(II) cations onto phosphated mesoporous titanium dioxide: Mechanism, isotherm and kinetics studies

Mironyuk, Ivan; Tatarchuk, Tetiana; Vasylyeva, Hanna; Naushad, Mu.; Mykytyn, Igor

doi:10.1016/j.jece.2019.103430

Cited by 49 publications

(16 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The degenerate vibrations Eu of TiO6 octahedrons in the anatase structure of the a-TiO2 sample are manifested by two bands at 548 cm -1 and 480 cm -1 [6]. The bands at 330 cm -1 and 730 cm -1 belong to symmetric vibrations Au of octahedral sites [4,5]. The presence of rutile phase in the 3Sn/TiO2 sample is confirmed by bands 430 cm -1 , 625 cm -1 (Eu vibrations) and 360 cm -1 , 750 cm -1 (Au vibrations).…”

Section: Ir-spectroscopy Of Sn-doped Tio2 Samplesmentioning

confidence: 96%

“…Anatase and rutile are crystal modifications of titanium dioxide, which have unique optical, adsorption and photocatalytic properties. They have a wide application in production of photonic functional materials [1], electrochromic film coatings [2], gas sensors [3], adsorbents for heavy metals extraction from an aqueous medium [4][5][6][7], etc. The phenomenon of photocatalytic decomposition of water on the TiO2 surface has been discovered in 1972 by A. Fujishima and K. Honda [8].…”

Section: Introductionmentioning

confidence: 99%

“…The tin tetrachloride SnCl4 has been used as a modifying agent. Such titanium aquacomplex showed its effectiveness in the synthesis of anatase adsorbents [4][5][6], which are effective in heavy metals removal from an aqueous medium. Usually four-charged metal cations stabilize the anatase modification.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Structure, Morphology and Conductive Properties of Sn-doped TiO2

Mironyuk¹,

Tatarchuk²,

Kotsyubynsky³

et al. 2020

J. Nano- Electron. Phys.

View full text Add to dashboard Cite

The effect of Sn doping on the structure and morphology of Sn-doped TiO2 samples has been investigated. The doped titania has been obtained by sol-gel synthesis using titanium aquacomplex precursor [Ti(OH2)6] 3+ •3Cl -and SnCl4 as a modifier. The structure and morphology of the samples have been studied through XRD analysis, TEM, low-temperature porometry, IR-spectroscopy, and EDS analysis. The conductivity of Sn-doped TiO2 samples has been investigated by impedance spectroscopy. It was shown that the Sn-doped titania samples contain both anatase and rutile phases. The anatase/rutile ratio depends on the Sn content: the increasing Sn (IV) content from 3 to 12 % (wt.) leads to an increase in rutile content from 33.8 to 97.1 % (wt.). An increase in Sn content causes a decrease in the lattice parameter a and an increase in the parameter c. The presence of rod-shaped and needle-like rutile particles in the Sn-doped TiO2 samples has been observed by TEM. The specific surface area for 6Sn/TiO2 reached 290 m 2 /g. All the Sn-doped titania samples belong to the mesoporous materials. The mechanism of structure-forming processes is explained by existing Sn(OH)4•2H2O molecules in the reaction medium, which act as the centers of nucleation, growth and crystallization for rutile nanoparticles. The increase in Sn content leads to a decrease in the specific resistance of the studied materials compared to the undoped titania sample.

show abstract

Section: Ir-spectroscopy Of Sn-doped Tio2 Samplesmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Structure, Morphology and Conductive Properties of Sn-doped TiO2

Mironyuk¹,

Tatarchuk²,

Kotsyubynsky³

et al. 2020

J. Nano- Electron. Phys.

View full text Add to dashboard Cite

show abstract

“…Figures 5(a) If the C 0 and C f were the initial and final concentrations of samples, respectively, the degree of sensing layer absorption for MB and MO was estimated using E = 100ðC 0 − C f Þ/C 0 [33,47,48]. Therefore, the degree of absorption [49,50] for MB and MO was achieved at 91.8% and 62%, respectively. Consequently, MB has a higher tendency to interact with the PPy-Chi-CaFe 2 O 4 composite layer.…”

Section: International Journal Of Polymer Sciencementioning

confidence: 99%

Polypyrrole-Chitosan-CaFe₂O₄ Layer Sensor for Detection of Anionic and Cationic Dye Using Surface Plasmon Resonance

Sadrolhosseini

Nia

Shafie

et al. 2020

International Journal of Polymer Science

View full text Add to dashboard Cite

A polypyrrole-chitosan-calcium ferrite nanocomposite was prepared using the electrodeposition method. The prepared layer was characterized by using Fourier transform infrared spectroscopy, the X-ray diffraction technique, and field emission electron microscopy. The thickness of the thin layers was in the range of 2.8 nm to 59.5 nm, and the refractive index of the composite layer was in the range of 1.66131+0.156i to 1.62734+0.167i. Detection and removal of cationic and anionic dyes, such as methylene blue and methylene orange, are subject of great interest for protecting environmental water. The layer composite was used to detect methylene orange and methylene blue using the surface plasmon resonance technique. Consequently, the polypyrrole-chitosan-calcium-ferrite composite layer interacted with the anionic and cationic dyes. The resonance angle shift for the detection of the cationic dye was larger than the resonance angle shift for the anionic dye. The sensor limit was achieved from a sensogram at about 0.01 ppm.

show abstract

“…Most column adsorbents acting as the core elements of the 68 Ge/ 68 Ga generator use metal oxides [ 10 ]. In general, metal oxides have good adsorption capacities for metal ions and provide high surface area with varying surface functional groups that can interact with heavy metal ions [ 11 , 12 ]. As a result, they show remarkable potential for the removal of heavy metal ions.…”

Section: Introductionmentioning

confidence: 99%

TiO2 Decorated Low-Molecular Chitosan a Microsized Adsorbent for a 68Ge/68Ga Generator System

et al. 2021

View full text Add to dashboard Cite

We report column material for a 68Ge/68Ga generator with acid resistance and excellent adsorption and desorption capacity of 68Ge and 68Ga, respectively. Despite being a core element of the 68Ge/68Ga generator system, research on this has been insufficient. Therefore, we synthesized a low molecular chitosan-based TiO2 (LC-TiO2) adsorbent via a physical trapping method as a durable 68Ge/68Ga generator column material. The adsorption/desorption studies exhibited a higher separation factor of 68Ge/68Ga in the concentration range of HCl examined (0.01 M to 1.0 M). The prepared LC-TiO2 adsorbent showed acid resistance capabilities with >93% of 68Ga elution yield and 1.6 × 10−4% of 68Ge breakthrough. In particular, the labeling efficiency of DOTA and NOTA, by using the generator eluted 68Ga, was quite encouraging and confirmed to be 99.65 and 99.69%, respectively. Accordingly, the resulting behavior of LC-TiO2 towards 68Ge/68Ga adsorption/desorption capacity and stability with aqueous HCl exhibited a high potential for ion-exchange solid-phase extraction for the 68Ge/68Ga generator column material.

show abstract

Adsorption of Sr(II) cations onto phosphated mesoporous titanium dioxide: Mechanism, isotherm and kinetics studies

Cited by 49 publications

References 49 publications

Structure, Morphology and Conductive Properties of Sn-doped TiO2

Structure, Morphology and Conductive Properties of Sn-doped TiO2

Polypyrrole-Chitosan-CaFe₂O₄ Layer Sensor for Detection of Anionic and Cationic Dye Using Surface Plasmon Resonance

TiO2 Decorated Low-Molecular Chitosan a Microsized Adsorbent for a 68Ge/68Ga Generator System

Contact Info

Product

Resources

About

Adsorption of Sr(II) cations onto phosphated mesoporous titanium dioxide: Mechanism, isotherm and kinetics studies

Cited by 49 publications

References 49 publications

Structure, Morphology and Conductive Properties of Sn-doped TiO2

Structure, Morphology and Conductive Properties of Sn-doped TiO2

Polypyrrole-Chitosan-CaFe2O4 Layer Sensor for Detection of Anionic and Cationic Dye Using Surface Plasmon Resonance

TiO2 Decorated Low-Molecular Chitosan a Microsized Adsorbent for a 68Ge/68Ga Generator System

Contact Info

Product

Resources

About

Polypyrrole-Chitosan-CaFe₂O₄ Layer Sensor for Detection of Anionic and Cationic Dye Using Surface Plasmon Resonance