Preconcentration and Determination of Pb (II) in Aqueous Samples using Functionalized Dowex 1X8

Jan, Mohammad Rasul; Shah, Jasmin; Sadia, Maria; Haq, Atta ul

doi:10.1080/07366299.2011.609386

Cited by 5 publications

(2 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Chelating resins containing functional groups were extensively used to treat waste metals in a trace or ultra concentration range because of its low cost, high adsorption capacity, good recovery, and excellent selectivity. − The synthesis polymers containing heterocyclic functional groups, such as imidazole, bis(2-benzimidazolyl methyl)amine, pyrimidine, pyridine, quinoline, and 2-amino-2-thiazoline, have been successfully applied to the removal of trace metals. Macroporous chloromethylated polystyrene beads (PS-Cl) are an ideal polymeric matrix with stable mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

2-Aminothiazole Functionalized Polystyrene for Selective Removal of Au(III) in Aqueous Solutions

Xiong

Zhou

Liu

et al. 2014

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

A new chelating resin, polystyrene-2-aminothiazole (PS-AT), was synthesized via one-step reaction by grafting 2-aminothiazole in a chloromethylated polystyrene polymer. Its structure was characterized by elemental analysis and infrared spectroscopy. Batch experiments were applied to investigate the adsorption properties of PS-AT for Au(III) ions. The resin exhibits an excellent selectivity for Au(III) ions in the presence of Ni(II), Cu(II), Cd(II), and Co(II) ions. The maximum adsorption capacity obtained at 308 K was 733.8 mg/g. The adsorption kinetic and equilibrium data were well fitted to the pseudo-second-order model and the Langmuir isotherm model, respectively. Desorption of gold from the resin can be achieved using 60 mL of 2 mol/L HCl-10% thiourea solution with a desorption ratio of 93.8%. The XPS data, along with IR spectra, revealed that gold was adsorbed on the surface of PS-AT in the form of chloride, and nitrogen and sulfur were involved in the chelation of gold chloride.

show abstract

Section: Introductionmentioning

confidence: 99%

2-Aminothiazole Functionalized Polystyrene for Selective Removal of Au(III) in Aqueous Solutions

Xiong

Zhou

Liu

et al. 2014

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

show abstract

“…Many methods have been attempted to prepare transition metal oxide nanoscale such as chemical vapor deposition (CVD) [6], hydrothermal methods [7], microwave irradiation [8], electrochemical deposition [9], soft chemical solution [10] and molecular beam epitaxy [11]. Several methods have been reported for the removal of dye and toxic metal ions from the environment such as, cloud point extraction [12], ionexchange [13], flocculation-coagulation [14], solid-phase extraction [15], photocatalysis [16] and direct adsorption [17]. Among these methods, adsorption has been found to be the most effective with high capacity, accessibility, selectivity, simplicity of design, and separation of toxic pollutants [18].…”

Section: Introductionmentioning

confidence: 99%

A comparative study of micro- and nano-structured di-nuclear Co(II) complex, designed to produce efficient nano-sorbent of Co3O4 applicable in the removal of Pb2+

Razmara

2020

SN Appl. Sci.

View full text Add to dashboard Cite

A di-nuclear inorganic complex, formulated as [Co 2 (H 2 O) 5 (pdc) 2 ]·2H 2 O (1) that pdc 2− is pyridine-2,6-dicarboxylato has been synthesized under hydrothermal condition and sonochemical irradiation. Depending on the synthetic conditions, different morphology has been obtained for complex 1. Complex 1 hydrothermal (hc) which obtained as single crystal is a micro-structured compound and was characterized by single crystal X-ray diffraction. Complex 1 ultrasound (uc) is a nano-structured compound and obtained as precipitate. Structural comparison of hc and uc by Fourier-transform infrared spectroscopy (FT-IR), powder X-ray diffraction, and scanning electron microscopy (SEM) revealed that both synthesized complexes have the same structure with different particles size and morphology. In this study, a new synthetic route has been developed to prepare Co 3 O 4 nanoparticles for environmental catalytic applications. Effective sorbents Co 3 O 4 -hc and Co 3 O 4 -uc were prepared by thermolysis of dinuclear cobalt complexes and characterized by FT-IR, SEM, XRD, and Brunauer-Emmett-Teller specific surface area. Co 3 O 4 -hc and Co 3 O 4 -uc were used as nano-sorbents for the removal Pb(II) from aqueous solution. Detailed sorption studies showed that both synthetic sorbents are valuable to remove Pb(II) from wastewater. The effective catalytic performance of the as-prepared sorbents can be attributed to the physicochemical features of synthetic catalysts, such as mesoporous nature, homogenous dispersion of the active phase, small particle size and high surface area. The effects of contact time, pH, Pb(II) and adsorbent dosage to remove Pb(II) were investigated. Maximum adsorption percent of Co 3 O 4 -hc and Co 3 O 4 -uc at room temperature were found to be 90 and 92.2%, respectively. The selectivity of the as-prepared catalysts toward metal ions Pb(II), Co(II), Cr(III), Cu(II), Fe(II), Hg(II), Mn(II) and Ni(II) exhibited that Co 3 O 4 catalysts have the highest selectivity toward Pb(II). Also, the synthetic catalysts Co 3 O 4 -hc and Co 3 O 4 -uc showed an excellent cycling performance for Pb(II) removal up to 85.3 and 83.4% recovery over five cycles.

show abstract

Preconcentration and determination of Cu (II) from aqueous samples using functionalized sawdust and comparison with synthetic functionalized sorbents

Shah

Jan

Sadia

et al. 2013

Korean J. Chem. Eng.

View full text Add to dashboard Cite

Preconcentration and Determination of Pb (II) in Aqueous Samples using Functionalized Dowex 1X8

Cited by 5 publications

References 31 publications

2-Aminothiazole Functionalized Polystyrene for Selective Removal of Au(III) in Aqueous Solutions

2-Aminothiazole Functionalized Polystyrene for Selective Removal of Au(III) in Aqueous Solutions

A comparative study of micro- and nano-structured di-nuclear Co(II) complex, designed to produce efficient nano-sorbent of Co3O4 applicable in the removal of Pb2+

Preconcentration and determination of Cu (II) from aqueous samples using functionalized sawdust and comparison with synthetic functionalized sorbents

Contact Info

Product

Resources

About