Solid-phase extraction of trace Ni(II) ions on ethylenediamine-silica material synthesized by sol–gel method

Akdemir, Emir; İmamoğlu, Mustafa

doi:10.1080/19443994.2013.813004

Cited by 9 publications

(4 citation statements)

References 29 publications

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“…The pH had great effect on the adsorption of chelating resin, which not only affects the existing forms of metal ions in the solution but also has an important effect on the dissociation of functional group and surface charge properties of chelating resin . As shown in Figure , the effect of pH on the adsorption performance of PPS‐ATD resin for Hg(II), Pb(II), Fe(III), and Cu(II) were investigated.…”

Section: Resultsmentioning

confidence: 99%

Preparation and characterization of polyphenylene sulfide–based chelating resin–functionalized 2‐amino‐1,3,4‐thiadiazole for selective removal Hg(II) from aqueous solutions

Shao

Xiao

Tian

et al. 2017

Polymers for Advanced Techs

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A novel chelating resin (PPS-ATD) containing N and S elements was prepared through the chloromethylation of polyphenylene sulfide resin and subsequent functionalization with 2amino-1,3,4-thiadiazole (ATD). The structure of PPS-ATD was systematically characterized and analyzed by the Fourier transform infrared spectroscopy, elemental analysis, thermogravimetric analysis, scanning electron microscope, and energy dispersive spectrometer. The adsorption performance of PPS-ATD was evaluated by batch methods at different pH, temperature, adsorption time, and initial concentration, and the results showed that the PPS-ATD exhibited high adsorption capacity (197.79 mg·g −1 at 298 K) and selectivity for Hg(II). The adsorption of PPS-ATD for Hg(II) was well fitted by the Langmuir isotherm model, and the adsorption process was endothermic. After 5 consecutive regeneration cycles, no obvious loss in the adsorption capacity of the PPS-ATD was found, which implied that the PPS-ATD had great application prospects in the treatment of mercury-containing wastewater. KEYWORDS 2-amino-1,3,4-thiadiazole, Hg(II), adsorption performance, chelating resin, polyphenylene sulfide 1 | INTRODUCTION Mercury is a toxic heavy metal and refractory pollutant, which is regarded as a highly dangerous element by the environmental protection department. 1-3 In human activities, emissions of mercury pollutants are mainly from the calcination of sulfide ore and the combustion of fossil fuel. 4-6 These mercury pollutants cause the production of mercury-containing wastewater and pollute the environment, 7,8 because of the volatility, persistence, and bioaccumulation of mercury wastewater, 9-11 and the treatments of mercury-containing wastewater got great attention in recent years.It is very important to develop effective technologies to deal with mercury-containing wastewater. There are many methods to treat mercury-containing wastewater, such as chemical precipitation, membrane filtration, electrodialysis, phytoremediation, and adsorption.However, adsorption is one of the most promising techniques for removing mercury from water. [12][13][14][15] Various solid adsorbents including fibers, resins, and inorganic materials were provided to adsorb mercury ions, [16][17][18][19] and among them, activated carbon and macro-porous polystyrene resin have an excellent absorption capacity for mercury, [20][21][22] but chelating resin has a stronger binding force with metal ions than other solid adsorbents, and higher adsorption selectivity for metal ions, 23,24 and mercapto chelating resin have an excellent complexation with mercury ions. [25][26][27][28] The selective adsorption is considered to be an obvious advantage for the treatment of wastewater.Most of chelating resins are prepared on the basis of polystyrene resin. Polyphenylene sulfide (PPS) is a novel resin matrix, which can be used to prepare functional materials, and since 2012, a series of fibrous ion exchanger based on PPS have been prepared by our laboratory. [29][30][31][32] However, little systemat...

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Section: Resultsmentioning

confidence: 99%

Preparation and characterization of polyphenylene sulfide–based chelating resin–functionalized 2‐amino‐1,3,4‐thiadiazole for selective removal Hg(II) from aqueous solutions

Shao

Xiao

Tian

et al. 2017

Polymers for Advanced Techs

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“…The pH value of the solution is an important parameter for the uptake of metal ions by several adsorbents [34][35][36]. The effect of the initial pH of the Cd(II) solution on the removal of Cd(II) by PMPPP is illustrated in Fig.…”

Section: Effect Of Phmentioning

confidence: 99%

Adsorption of Cd(II) ions onto polyamine-polyurea polymer modified with pyromellitic dianhydride

Özer

Boysan

İmamoğlu

et al. 2016

Desalination and Water Treatment

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In this study, polyamine-polyurea polymer was synthesized using toluendiisocyanate and polyethyleneimine. It was then modified using pyromellitic dianhydride. The polymer so obtained (PMPPP) was used for the adsorption of Cd(II) metal ions from aqueous solutions using a batch adsorption system to simulate the adsorption characteristics of wastewater applications. The effects of pH, dosage, contact time, initial concentration, and temperature were investigated. The optimum pH value was found to be 6.0, and the contact time required to reach equilibrium was 120 min. The Cd(II) adsorption equilibrium data were found to be more in line with the Langmuir equation than the Freundlich model. The maximum adsorption capacity of PMPPP for Cd(II) was calculated to be 94.3 mg g -1 . Kinetics studies showed that Cd(II) adsorption followed the pseudo-second-order equation. Thermodynamic investigations revealed endothermicity, spontaneity, and an increased randomness of Cd(II) adsorption onto PMPPP. Polymer was characterized by Fourier transform infrared spectroscopy, thermogravimetric-differential thermal analysis, scanning electron microscopy, and nitrogen adsorption/desorption isotherms.

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“…Thus, separation or preconcentration may be required before the spectrometric determination of trace elements (Baliza, Teixeria, and Lemos 2009;Lemos, Gama, and Lima 2006;Wen et al 2009;Soylak 2004;Souza and Tarley 2008;Sert et al 2013). Several methods have been reported for the separation and preconcentration of nickel, such as coprecipitation (Ozdes et al 2012;Bahadir et al 2013;Feist and Mikula 2014), solid phase extraction (SPE) (Ozcelik et al 2012;Alothman et al 2012;Amin and Al-Attas 2012;Akdemir and Imamoglu 2013), liquid-liquid extraction (LLE) (Park and Fray 2009;Negm et al 2012), and cloud point extraction (CPE) (Zeng et al 2012;Xu et al 2013;Galbeiro, Garcia, and Gaubeur 2014). However, these techniques are time-consuming, require large volumes of organic solvents, and produce and secondary by-products.…”

Section: Introductionmentioning

confidence: 98%

Dispersive Liquid–Liquid Microextraction of Nickel Prior to Its Determination by Microsample Injection System-Flame Atomic Absorption Spectrometry

et al. 2014

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A sensitive and simple method for the determination of trace nickel was developed by the combination of dispersive liquid-liquid microextraction (DLLME) and microsample injection system-flame atomic absorption spectrometry (MIS-FAAS). Trace nickel was preconcentrated as the 8-hydroxyquinoline chelate by DLLME, and the conditions were optimized by a Plackett-Burman design. Quantitative recovery of nickel (98 AE 1%) was obtained by a sample volume of 7.5 mL at a pH of 6.0. The enrichment factor was 52.5, and the limits of detection and quantitation were 0.1 l g L À1 and 3.0 l g L À1 , respectively. The method was validated by the analysis of a wastewater standard reference material, water samples, and a wire sample. The reported method has superior analytical figures of merit compared with similar methods reported in the literature.

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Solid-phase extraction of trace Ni(II) ions on ethylenediamine-silica material synthesized by sol–gel method

Cited by 9 publications

References 29 publications

Preparation and characterization of polyphenylene sulfide–based chelating resin–functionalized 2‐amino‐1,3,4‐thiadiazole for selective removal Hg(II) from aqueous solutions

Preparation and characterization of polyphenylene sulfide–based chelating resin–functionalized 2‐amino‐1,3,4‐thiadiazole for selective removal Hg(II) from aqueous solutions

Adsorption of Cd(II) ions onto polyamine-polyurea polymer modified with pyromellitic dianhydride

Dispersive Liquid–Liquid Microextraction of Nickel Prior to Its Determination by Microsample Injection System-Flame Atomic Absorption Spectrometry

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