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2013 | 11 | 11 | 1749-1756
Article title

Separation of trace amounts palladium by SiO2/TiO2/Ce nanoparticles prior to flame atomic absorption spectrometry determination in anodic slime and wastewater samples

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EN
Abstracts
EN
In the present work, a new SiO2/TiO2/Ce, nanoparticle was synthesed using sol-gel method and evaluated as an adsorbent for preconcentration trace amounts of Pd(II) ions. The characterization of the nanoparticles has been studied by transmission electron microscope and X-ray diffraction. The preconcentration method is based on palladium adsorption onto the surface of nanoparticle at pH 8.5. The main factors affecting Pd(II) adsorption, such as pH of sample solution, concentration and volume of eluent, sample volume, interfering of the coexisting ions and flow rate of sample and eluent were investigated and optimized. At optimum conditions, linearity was maintained between 4.0 to 1000.0 ng mL−1. Detection limit based on 3Sb/m was 2.3 ng mL−1. Seven replicate determinations of a solution containing of 12.5 µg palladium gave a relative standard deviation ±1.7%. According to the Langmuir linear model, the maximum adsorption capacity of palladium was found to be 34.5 mg g−1. Finally, the feasibility of the proposed method for Pd(II) determination was assessed by analysis of certified reference materials, anodic slime and wastewater samples and satisfactory results were obtained. [...]
Publisher

Journal
Year
Volume
11
Issue
11
Pages
1749-1756
Physical description
Dates
published
1 - 11 - 2013
online
25 - 8 - 2013
Contributors
  • Department of Chemistry, Payame Noor University, P.O. Box 19395-4697, Tehran, Iran, szmohammadi@yahoo.com
  • Department of Chemistry, Payame Noor University, P.O. Box 19395-4697, Tehran, Iran
  • Department of Chemistry, Payame Noor University, P.O. Box 19395-4697, Tehran, Iran
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Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.-psjd-doi-10_2478_s11532-013-0315-3
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