Intercalation of α-titanium phosphate with long-chain amine aided by short-chain amine

Albitres, Gerson Av; Cestari, Sibele Piedade; Freitas, Daniela F. S.; Rodrigues, Dayana Coval; Mendes, Luís Claudio; Neumann, Reiner

doi:10.1007/s13204-019-01176-1

Cited by 11 publications

(7 citation statements)

References 48 publications

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“…Specifically, the characteristic peak (d 002 ) of each product measured interlayer distances of 9.84 Å (ethylene‐diamine phosphate, 2θ = 8.97°), 11.82 Å (1,3‐propanediamine phosphate, 2θ = 7.47°), 12.77 Å (1,4‐butanediamine phosphate, 2θ = 6.92°), 15.23 Å (1,6‐hexanediamine phosphate, 2θ = 5.80°), and 16.18 Å (1,7‐heptanediamine phosphate, 2θ = 5.45°). Compared to the original α‐TiP (d 002 ≈ 7.60 Å, 2θ = 11.60°),[4a] the phosphate‐exchanged α‐TiPs exhibited downshifts in the d 002 , which confirms the successful intercalation and enlarged interlayer distances . Additionally, Figure shows that the interlayer spacing linearly increased as the length of the diamine chain of the alkyldiamine phosphates increased.…”

Section: Resultsmentioning

confidence: 88%

Embedding Alkyldiamine into Layered α‐Titanium Phosphate via Direct‐Ion Exchange and its Application in Eu^III Removal from Water

Peng

Wang

et al. 2020

Zeitschrift anorg allge chemie

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Diamine-pillared α-titanium phosphate (α-TiP) was prepared via direct ion exchange method. Moreover, 1,3-propanediamine, as the pillaring agent, was used to investigate the effect of pH, content and temperature on the interlayer distance of α-TiP. The structure and properties of the samples were characterized by X-ray Diffraction (XRD), Fourier Transform Infrared Spectroscopy (FT-IR), Field Emission Scanning Electron Microscopy (SEM), and Differential Thermal Analysis (TG). The results show that the interlayer distance of α-TiP was enlarged from 7.6 Å to 16.18 Å as the carbon chain of the intercalating diamine increased from (NH 2 (CH 2 ) n NH 2 ) (n = 2 to 7). The layer 399 space structure consists of monomolecular alkyl chains with an average tilt angle of 75.6°. The uptake values for these five alkyldiamine cations were 3.780, 3.261, 2.443, 2.175, and 1.954 mmol, per gram of TiP, respectively. Also, we found that the direct ion exchange method is more effective in a weak acidic environment. The variation of interlayer distance was a consecutive process, and unaffected by temperature. The 1,3-propanediamine intercalation product (α-TiPPda) showed excellent performance towards Eu III adsorption in water with removal efficiencies Ն 99 %. Journal of Inorganic and General ChemistryZeitschrift für anorganische und allgemeine Chemie ARTICLE

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Section: Resultsmentioning

confidence: 88%

Embedding Alkyldiamine into Layered α‐Titanium Phosphate via Direct‐Ion Exchange and its Application in Eu^III Removal from Water

Peng

Wang

et al. 2020

Zeitschrift anorg allge chemie

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“…This implies that for a certain weight of the material larger surface areas were accessible for the AgNPs on α-TiP nanolayered crystals compared to the surfaces of α-ZrP nanolayered crystals. Secondly, the PXRD data analysis of the Ag-enriched metal phosphates showed that, beside the appearance of d hkl -spacings corresponding to the interlayer distances in the monoclinic crystalline structures of α-ZrP and α-TiP [ 21 ], additional larger d hkl -spacings are observed. These d hkl -spacings are 7.81 Å in Ag-enriched α-ZrP, attributed to the formation of Zr(AgPO 4 ) 2 [ 44 ]; and two adjacent peaks at 7.74 Å and 8.12 Å in PXRD pattern of the Ag-enriched α-TiP, though the latter is assigned in the theoretical structure of this phase as the reflection (100) that rarely appears in experimental PXRD patterns, unless the structure is highly disordered ( Figure 2 ).…”

Section: Discussionmentioning

confidence: 99%

“… A magnified view for the peaks appeared in the range of 2θ = 10–13° in PXRD that corresponds to the inter layer distances of α-ZrP and α-TiP [ 21 ]. Left panel : Experimental X-ray diffraction pattern (red) of the obtained Ag-enriched zirconium phosphate compared to the experimental X-ray diffraction pattern of the pristine α-ZrP (green); Right panel : Experimental X-ray diffraction pattern (red) of the obtained Ag-enriched titanium phosphate compared to the experimental X-ray diffraction pattern of the pristine α-TiP (green).…”

Section: Figurementioning

confidence: 99%

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Nanolayered Metal Phosphates as Biocompatible Reservoirs for Antimicrobial Silver Nanoparticles

et al. 2021

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There is an increasing demand on synthesizing pharmaceuticals and biomaterials that possess antimicrobial and/or antiviral activities. In this respective silver nanoparticles are known for their excellent antimicrobial activity. Nevertheless, their uncontrolled release in a biological medium can induce a cytotoxic effect. For this, we explored the use of nanolayered metal phosphates based on titanium and zirconium as materials that can be enriched with silver nanoparticles. Employing the hydrothermal route, crystalline α-phases of zirconium and titanium phosphates (α-ZrP, α-TiP) were synthesized and there after surface-enriched with silver nanoparticles. The structural assessment confirmed the stability of the structures and their sizes are in the nanoscale at least in one dimension. The cytocompatibility assays confirmed the biocompatibility of the pristine phases and the antimicrobial assay confirmed that both silver-enriched nanolayered structures maintain an antibacterial effect at reasonably low concentrations.

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“…Additionally, they are used as fillers to achieve nanocomposites with improved properties. [36][37][38][39][40] The effect of polycaprolactone and nano titanium phosphate, pristine (TiP) and Jeffamine™ modified (JETiP) on the polypropylene matrix was performed. Thermal, crystallographic, dynamic-mechanical and molecular mobility characteristics were assessed.…”

Section: Introductionmentioning

confidence: 99%

Influence of polycaprolactone and titanium phosphate in the composites based upon recycled polypropylene

Quinelato

Albitres

Mariano

et al. 2020

Journal of Thermoplastic Composite Materials

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The influence of polycaprolactone (PCL) and nano titanium phosphate, pristine (TiP) and Jeffamine™ modified (JETiP), was investigated in composites derived from recycled polypropylene/polycaprolactone/titanium phosphate (PPr/PCL/TiP and PPr/PCL/JETiP). The TiP was synthesized and chemically modified with amine and the composite processed in a Haake rheometer. Improvement of PPr thermal stability was revealed. Reduction of PPr cooling crystallization temperature (9°C) and crystallinity degree (∼5–10%) were registered. Hydrogen nuclear magnetic resonance time domain revealed enhance of molecular mobility which was associated to the diminution of PPr crystallinity. The X-ray diffraction pattern of the composite PPr/PCL/JETiP did not show phosphate diffraction angle. It was understood as polymer intercalation into modified titanium phosphate galleries. At low temperature, the storage modulus increased by the presence of PCL and phosphates evidencing reinforcement. Both PPr/PCL/TiP and PPr/PCL/JETiP composites yielded phase separation systems revealed by two peaks in the loss modulus curves. Also, the high PPr participation effectiveness degree on the PCL-rich phase was understood as owing to the interaction between PCL and phosphates.

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Intercalation of α-titanium phosphate with long-chain amine aided by short-chain amine

Cited by 11 publications

References 48 publications

Embedding Alkyldiamine into Layered α‐Titanium Phosphate via Direct‐Ion Exchange and its Application in Eu^III Removal from Water

Embedding Alkyldiamine into Layered α‐Titanium Phosphate via Direct‐Ion Exchange and its Application in Eu^III Removal from Water

Nanolayered Metal Phosphates as Biocompatible Reservoirs for Antimicrobial Silver Nanoparticles

Influence of polycaprolactone and titanium phosphate in the composites based upon recycled polypropylene

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Intercalation of α-titanium phosphate with long-chain amine aided by short-chain amine

Cited by 11 publications

References 48 publications

Embedding Alkyldiamine into Layered α‐Titanium Phosphate via Direct‐Ion Exchange and its Application in EuIII Removal from Water

Embedding Alkyldiamine into Layered α‐Titanium Phosphate via Direct‐Ion Exchange and its Application in EuIII Removal from Water

Nanolayered Metal Phosphates as Biocompatible Reservoirs for Antimicrobial Silver Nanoparticles

Influence of polycaprolactone and titanium phosphate in the composites based upon recycled polypropylene

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Embedding Alkyldiamine into Layered α‐Titanium Phosphate via Direct‐Ion Exchange and its Application in Eu^III Removal from Water

Embedding Alkyldiamine into Layered α‐Titanium Phosphate via Direct‐Ion Exchange and its Application in Eu^III Removal from Water