Spontaneous formation of gold microplates during reduction-coupled removal of noble metals using Dowex M4195 resin
作者： Dorota Jermakowicz-Bartkowiak , Piotr Cyganowski , Anna Leśniewicz , Wlodzimierz Tylus , Jacek Chȩcmanowski
DOI: 10.1002/APP.42425
关键词: Raman spectroscopy 、 X-ray photoelectron spectroscopy 、 Nuclear chemistry 、 Materials science 、 Sorption 、 Nanoparticle 、 Adsorption 、 Batch method 、 Rhenium 、 Organic chemistry 、 Fourier transform infrared spectroscopy
摘要: The present work reports the novel phenomenon of spontaneous formation gold microplates. effect is observed as a consequence , and sorption on Dowex M4195 resin. Therefore an attempt to explain mechanism made. research covering sorption, kinetic thermodynamic studies. shapes formed single plates are determined. uptakes Au(III), Pt(IV), Pd(II), Re(VII) tests have been conducted using batch method from single-component metals solutions in 0.1M HCl. sorption-reduction has assessed by executed SEM, FTIR, XRD, XPS greatest capacity, combined with reduction-coupled removal phenomenon, achieved for (5.5 mmol Au·g−1 at 9°C). Executed SEM XRD analyzes prove crystals during process, furthermore reduction rhenium indicated analysis. Based obtained FTIR Raman's spectra, probably followed resins’ functional groups oxidation. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 42425.
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