Synthesis and application of alizarin complexone functionalized polyurethane foam: Preconcentration/separation of metal ions from tap water and human urine

Azeem, Sami M. Abdel; Arafa, Wael A. A.; El‐Shahat, M. F.

doi:10.1016/j.jhazmat.2010.06.028

Cited by 21 publications

(8 citation statements)

References 37 publications

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“…E cation-anion ＝E IL -E cation -E anion (5) E IL-Cu 2＋＝E IL ＋ Cu 2＋ -E IL -E Cu 2＋ (6) 公式(5)中 E cation-anion 、E IL 、E cation 、E anion 分别表示正负离子的结合能、离子对的能量、正离子的能量以及负离子的能量. 公式(6)中 E IL-Cu 2＋、E IL ＋ Cu 2＋和 E Cu 2＋分别表示离子对与 Cu 2＋的结合能、离子对与 Cu 2＋的总能量以及铜离子的能量.…”

Section: 理论计算方法unclassified

Extraction of Copper from Aqueous Solution with Functional Ionic Liquids: Experiment and Theoretical Calculation

刘梦莹¹,

车佳宁²,

吴蔚闳³

et al. 2015

Acta Chim. Sinica

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This work studied the extraction of copper (II) ions from aqueous solution with thiourea-appended imidazolium hydrophobic ionic liquids and the extraction mechanism by experiment and theory. The influence of parameters affecting the extraction of copper ion, such as the metal ion concentrations, volume ratio between aqueous solution and ionic liquid, contact time, sodium chloride and pH, as well as alkyl chain length was analyzed. In the case of room temperature, the volume ratio between aqueous/IL phases was 50, the extraction efficiencies ＞95% could be obtained for copper ion with all the ionic liquids [C n MPSM][PF 6 ] (n＝4, 6, 8). The results also suggest that n＝4 did the same work on the extraction efficiency with n＝6 but higher than n＝8, while pH and the salt in the solution had little effect on the extraction efficiency for the extraction with [HMPSM][PF 6 ]. The grafted functional group significantly enhanced the extraction efficiency for Cu 2＋ from 20% to over 99% compared with traditional ILs. To the IL [HMPSM][PF 6 ], the content of imidazolium cation in the aqueous solution before and after extraction with functional IL reduces from 1.24% to 0.85% which means the coordination effect between functional group and the metal ion restrains the release of [HMPSM] ＋ cation from functional IL to the aqueous solution, while it increases from 0.63% to 0.87% for traditional IL, which is consistent with the results caused by the cation exchange mechanism. In the theory part, the lanl2dz-ECP basis set was employed for transition metal Cu, whereas for the remaining atoms 6-31G (d,p) was applied, cation-anion interaction energies of the ILs and the binding energies between Cu (II) ion and the ILs were calculated, also the surface properties most-negative-surface electrostatic potential (V s,min) and the lowest surface average local ionization energy (Ī s,min), were determined by the Multiwfn 2.4 program. All the calculation results show that the sulfur atom from cation is easier to attract the metal ion electrostatically and covalently, thus leads to the high efficiency of extraction.

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Section: 理论计算方法unclassified

Extraction of Copper from Aqueous Solution with Functional Ionic Liquids: Experiment and Theoretical Calculation

刘梦莹¹,

车佳宁²,

吴蔚闳³

et al. 2015

Acta Chim. Sinica

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“…The LOD and LOQ values for the studied ions with the new extractor enable the use of this material in collection of Mn and Fe ions at a trace concentration prior to their determination with high accuracy. The values of LOD and RSD due to the application of PPF for determination of Mn(II) and Fe(III) indicate that the PPF sorption method is more efficient than other sorbents (Abdel Azeem et al, 2010;Burham et al, 2009;Nitiyanontakit et al, 2011;Rahman et al, 2011;Tuzen et al, 2009). The accuracy and precision for the different fortification levels of the sample were estimated.…”

Section: Column Proceduresmentioning

confidence: 99%

“…Thus, it is a very suitable material for batch and column techniques. The aim of this study is first to highlight the method of modification of polyurethane foam with polyhydroxyl groups, because these groups act as selective ligands with high bond stability for transition metal ions (Abdel Azeem et al, 2010;Moawed, 2011). The second aim is to develop a new, simple, cheap and rapid separation and determination procedure for Mn and Fe in trace level from natural samples using the modified PUF.…”

Section: Introductionmentioning

confidence: 99%

Separation and determination of iron and manganese in water using polyhydroxyl polyurethane foam

Moawed

Burham

El‐Shahat

2013

Journal of the Association of Arab Universities for Basic and A

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The polyhydroxyl-polyurethane foam (PPF) was used as a new sorbent for separation, preconcentration and determination of manganese and iron ions in natural samples. Experimental conditions for effective separation of trace levels of the metal ions were optimized with respect to different experimental parameters in batch and dynamic processes. The maximum sorption of Mn(II) and Fe(III) was in the pH range of 6-8. The kinetics of sorption of the Mn(II) and Fe(III) by the PPF was found to be fast with an average value of half-life of sorption (t 1/2) of 11.7 min. The sorption capacity of PPF was 8.7 lmol g À1 and the recovery of tested ions 99-100% was achieved. The lower detection limit, 0.08 lg L À1 was evaluated using spectrophotometric method. The relative standard deviation (RSD) under optimum conditions is 1.3% (n = 5). The bonding of the studied metal ions by the PPF is useful for the removal of metal contamination from real samples.

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“…PUF is used for adsorption and recovery of organic and inorganic components from aqueous solutions [24][25][26]. Also, it is normally Determination of azine and triphenyl methane dye in wastewater using polyurethane foam functionalized with tannic acid Determination of azine and triphenyl methane dye in wastewater using polyurethane foam functionalized with tannic acid 19 The pH measurements were carried out using a pH meter from…”

Section: Introductionmentioning

confidence: 99%

Determination of azine and triphenyl methane dye in wastewater using polyurethane foam functionalized with tannic acid

Moawed¹,

Alqarni²

2013

Sample Preparation

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A simple and sensitive spectrophotometric method for the determination of azine (neutral red) and triphenyl methane (rosaniline) dye has been developed using tannic acid-polyurethane foam (TPF). TPF was prepared by coupling a polyhydroxypolyurethane foam matrix with tannic acid. TPF was characterized using a combination of analytical methods including IR and NMR spectroscopy, elemental analysis, density and pH ZPC . The qualitative and quantitative determination of dyes is based on its sorption on the surface of the TPF. The sorption behavior of dye onto the TPF was investigated by batch and dynamic processes. The maximum sorption of neutral red and rosaniline was in the pH range of 7-9. The kinetics of sorption of the dye by the TPF was found to be fast with average values of half-life of sorption of 1.2 min. The equilibrium process was well described by the Freundlich isotherm model. The visual detection limit of dye in aqueous solution is 0.1 μg mL -1 . The Sandell's sensitivity is 0.26 ng cm -2 with molar absorptivity 1.3 × 10 6 L mol -1 cm -1 . The average sorption capacity of TPF and the recovery of dyes were 0.47 mmol g -1 and 96.4 % (RSD ~ 1.5%, n=7). The method has been applied to various wastewater samples. KeywordsPolyurethane foam • Tannic acid • Neutral red • Rosaniline • Dye removal © Versita Sp. z o.o.

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Synthesis and application of alizarin complexone functionalized polyurethane foam: Preconcentration/separation of metal ions from tap water and human urine

Cited by 21 publications

References 37 publications

Extraction of Copper from Aqueous Solution with Functional Ionic Liquids: Experiment and Theoretical Calculation

Extraction of Copper from Aqueous Solution with Functional Ionic Liquids: Experiment and Theoretical Calculation

Separation and determination of iron and manganese in water using polyhydroxyl polyurethane foam

Determination of azine and triphenyl methane dye in wastewater using polyurethane foam functionalized with tannic acid

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