Assessment of adsorption properties of inorganic–organic hybrid cyclomatrix type polyphosphazene microspheres for the removal of Pb(II) ions from aqueous solutions

Arıcı, Tuğba Alp; Örüm, Simge Metinoğlu; Demircioğlu, Yasemin Süzen; Özcan, Adnan

doi:10.1080/10426507.2018.1506783

Cited by 10 publications

(8 citation statements)

References 48 publications

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“…Different from that of PA-DFB, PD-HCCP's spectrum illustrates a broad absorption band of N P skeleton at $1240 cm À1 , 44,45 and a stretching vibration signal of Ar O P at $1070 cm À1 . 44 In addition, in PD-HCCP's spectrum, the characteristic signal corresponding to carboxylic acid appeared in the range of 2400-2800 cm À123 (inset in Figure 1).…”

Section: Synthesis and Fundamental Properties Of Pd-hccpmentioning

confidence: 87%

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Diphenolic acid/furfurylamine‐based, semi‐biopolyamide/cyclophosphazene covalent composite: Preparation and application in Pb(II) probing and dye adsorption

Sun,

Shi,

Zhang

et al. 2024

Journal of Polymer Science

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Diphenolic acid/furfurylamine‐based bio‐benzoxazine (DPA‐fa‐Boz) was selected here as the starting material to prepare a phenol hydroxyl‐containing polyamide (PA) derivative, PA‐DFB, via sustainable benzoxazine‐isocyanide mechanochemistry (BIC‐MC). Further, a type of PA/phosphazene‐based, organic–inorganic covalent hybrid (PD‐HCCP), which comprises various N/P/O‐containing substructures (NP ring, amide, carboxylic acid, and tertiary amine), was successfully prepared by the condensation between PA‐DFB and hexachlorocyclotriphosphazene (HCCP). The presence of heteroatoms‐containing segments endows PD‐HCCP with specific affinity for some cationic agents. PD‐HCCP's binding capability for Pb(II) can be feasibly utilized for the detection of this heavy metal. The downstream application investigation of PD‐HCCP revealed that it can be used as an enrichment‐type Pb(II) electrochemical probe, characterizing a wide detection range (1–40 μM) and a low detection limit (0.0245 μM). Meanwhile, PD‐HCCP also showed the selective binding for cationic dye, methylene blue (MB), providing a maximum adsorption capacity of ~424.97 mg/g and a high adsorption rate (with 98% removal efficiency at 6 min), with the pseudo‐second‐order rate constant up to 0.0325 g mg−1 min−1.

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Section: Synthesis and Fundamental Properties Of Pd-hccpmentioning

confidence: 87%

“…The adsorption process was further analyzed by the intraparticle transfer diffusion model 22,45 (Equation 2):…”

Section: Electrodementioning

confidence: 99%

Diphenolic acid/furfurylamine‐based, semi‐biopolyamide/cyclophosphazene covalent composite: Preparation and application in Pb(II) probing and dye adsorption

Sun,

Shi,

Zhang

et al. 2024

Journal of Polymer Science

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“…As modifiers for polymers to improve their inflammability [13], and mechanical characteristics [13] [14]; as building blocks for porous materials [15]; as cores of star-shaped polymers [16]- [18]. Further, phosphazenes are used as coordination ligands for metal ions [9], [19], [20] or as building blocks in preparation of porous materials [21].…”

Section: Figure 1 General Structures Of Cyclo-and Poly(organophosphaz...mentioning

confidence: 99%

Selective mono substitution of cyclotri-phosphazene by 2-Hydroxyethylacrylate producing new acrylate cyclo-triphosphazene

Abbass¹,

Al-Shukri²,

Ahmed³

2022

GSC Adv. Res. Rev.

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In this work, new acrylate cyclotriphosphazene moiety (PN-A) was successfully synthesized starting from cyclotriphosphazene (PN) compound. This compound reacted with 2-hydroxyethylacrylate utilizing 1:1 mole ratio to increase the priority of one substitution reaction and forming PN-A molecule. The crud product was purified by recrystallization using n-hexane and column chromatography using cyclohexane: ethyl acetate 60:40 mL ratio as eluent. The obtained pure target product was characterized using FTIR, 1H NMR, 13C NMR, and 31P NMR techniques. All spectra demonstrates the chemical structure of the product hence the showed all required peaks to identify it.

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“…Of course, cyclophosphazenes are in demand as self-sufficient materials as well: for example, as curing agents for polymer resins [13][14][15]; as modifiers for polymers to improve their inflammability [16,17] and mechanical characteristics [16,18]; as building blocks for porous materials [19,20]; as cores of star-shaped polymers [21][22][23][24] and dendrimers [25][26][27] and much more. The size of a cycle plays an important role when phosphazenes are used as coordination ligands for metal ions [2,28,29] or as building blocks in preparation of porous materials [30].…”

Section: Figure 1 Nucleophilic Substitution Of Chlorine Atoms In Dichlorophosphazenesmentioning

confidence: 99%

Novel Approach for the Synthesis of Chlorophosphazene Cycles with a Defined Size via Controlled Cyclization of Linear Oligodichlorophosphazenes [Cl(PCl2=N)n–PCl3]+[PCl]6–

Gorlov¹,

Bredov²,

Esin³

et al. 2021

Preprint

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Despite a significant number of investigations in the field of phosphazene chemistry, the mechanism of this class cyclic compounds formation is still poorly studied. At the same time, a thorough understanding of this process is necessary both for the direct production of phosphazene rings with a given size, and for the controlled cyclization reaction when it is secondary and undesirable. Here we have synthesized a series of short linear phosphazene oligomers with the general formula Cl[PCl2=N]n–PCl3+PCl6– and studied their tendency to form cyclic structures under the influence of elevated temperature or in the presence of nitrogen-containing agents, such as hexamethyldisilazane (HMDS) or ammonium chloride. It was established that linear oligophosphazenes are inert when heated in the absence of the mentioned cyclization agents, and the formation of cyclic products occurs only when these agents are involved in the process. It is for the first time shown the ability to obtain the desired size phosphazene cycle from corresponding linear chain. Known obstacles like side interaction with the PCl6– counterion and a tendency of longer chains to undergo crosslinking elongation instead of cyclization are still relevant and ways to overcome them are being discussed.

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Assessment of adsorption properties of inorganic–organic hybrid cyclomatrix type polyphosphazene microspheres for the removal of Pb(II) ions from aqueous solutions

Cited by 10 publications

References 48 publications

Diphenolic acid/furfurylamine‐based, semi‐biopolyamide/cyclophosphazene covalent composite: Preparation and application in Pb(II) probing and dye adsorption

Diphenolic acid/furfurylamine‐based, semi‐biopolyamide/cyclophosphazene covalent composite: Preparation and application in Pb(II) probing and dye adsorption

Selective mono substitution of cyclotri-phosphazene by 2-Hydroxyethylacrylate producing new acrylate cyclo-triphosphazene

Novel Approach for the Synthesis of Chlorophosphazene Cycles with a Defined Size via Controlled Cyclization of Linear Oligodichlorophosphazenes [Cl(PCl2=N)n–PCl3]+[PCl]6–

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