Antimonate and arsenate speciation on reactive soil minerals studied by differential pair distribution function analysis
نویسندگان
چکیده
منابع مشابه
Differential pair distribution function study of the structure of arsenate adsorbed on nanocrystalline γ-alumina.
Structural information is important for understanding surface adsorption mechanisms of contaminants on metal (hydr)oxides. In this work, a novel technique was employed to study the interfacial structure of arsenate oxyanions adsorbed on γ-alumina nanoparticles, namely, differential pair distribution function (d-PDF) analysis of synchrotron X-ray total scattering. The d-PDF is the difference of ...
متن کاملInvestigation of surface structures by powder diffraction: a differential pair distribution function study on arsenate sorption on ferrihydrite.
Differential pair distribution function (d-PDF) analysis of high energy powder X-ray diffraction data was carried out on 2-line ferrihydrite nanoparticles with arsenate oxyanions adsorbed on the surface to investigate the binding mechanism. In this analysis, a PDF of ferrihydrite is subtracted from a PDF of ferrihydrite with arsenate sorbed on the surface, leaving only correlations from within ...
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chapter one is devoted to a moderate discussion on preliminaries, according to our requirements. chapter two which is based on our work in (24) is devoted introducting weighted semigroups (s, w), and studying some famous function spaces on them, especially the relations between go (s, w) and other function speces are invesigated. in fact this chapter is a complement to (32). one of the main fea...
15 صفحه اولNanostructure studied using the atomic pair distribution function
Studying the atomic structure of nanostructured materials presents a special challenge because our extensive crystallographic toolbox begins to lose its power on the nanoscale. The presumption of periodicity is a poor approximation when structural correlation lengths are limited to a few tens of nanometres or less and alternative approaches are needed. Here we give an overview of recent results...
متن کاملReflections on the magnetic pair distribution function.
The recent application of the total scattering method to magnetic systems is discussed. The ability to determine the magnetic pair distribution function opens the door to the study of local order in magnetic systems ranging from multiferroics to dilute magnetic semiconductors.
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ژورنال
عنوان ژورنال: Chemical Geology
سال: 2016
ISSN: 0009-2541
DOI: 10.1016/j.chemgeo.2016.03.001