Papers by Keyword: Nickel Ni

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Authors: Konstantin Vassilevski, Alton B. Horsfall, C. Mark Johnson, Nicolas G. Wright, Anthony G. O'Neill
Authors: D.M. Hunter, R.I. Grynszpan
Authors: René Le Gall, Guy Saindrenan, D. Roptin
Authors: Seung Yup Jeon, Eun Ju Chae, Won Ki Lee, Gun Dae Lee, Seong Soo Hong, Seog Young Yoon, Seong Soo Park
Abstract: Ni nanosheet has been prepared at various temperature and time with anion surfactant by chemical reduction of the nickel ion complexes formed from complexing reagent in a pressurized vessel. Sample was characterized by the means of an X-ray diffractomer (XRD), a field emission scanning electron microscopy (FESEM), an energy dispersive X-ray spectrometer (EDS), a selected-area electron diffraction (SAED) and a high sensitive magnetometer (HSM). The use of SDBS and sodium tartrate could be a key factor for the formation and growth of Ni nanosheet.
Authors: J.J. Gonzalez, Djar Oquab, Bernard Pieraggi
Authors: A. Kestle, S.P. Wilks, P.R. Dunstan, M. Pritchard, G. Pope, A. Koh, Philip A. Mawby
Authors: Frédéric Christien, René Le Gall, Guy Saindrenan
Authors: Zs. Tôkei, Dezső L. Beke, Jean Bernardini, Andree Rolland
Authors: Hyung Suk So, Yeong Seok Yoo, Andreas Schaeffer
Abstract: To develop the extraction media for Cd and Ni from aqueous solutions, magnetic beads containing IDA group with strong attraction to heavy metals were produced using the activating agents Epichlorhydrin (Ep) and 1,4-Butanedioldiglycidylether (Bu), respectively. Then the beads were agitated at a pH of 6 after being added to Cd and Ni aqueous solutions of various concentrations. It was confirmed that the heavy metals combined with the magnetic beads within a short time through the process. After the process, the magnetic beads were collected with a magnet, and then dissolved in acid for the analysis of heavy metal concentration. The analysis of heavy metals in the acid solution could be analyzed with an AAS (atomic absorption spectrometer). The results showed that the heavy metal extraction efficiency of Bu was relatively higher than that of the Ep. It supported the hypothesis that the relatively longer length of Bu’s spacer made more free positioning possible when the IDA group combined with the heavy metal.
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