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Nano-hydrotalcite (nano-HT), particles have been supported on silica and tested for chromium(VI) retention through anion exchange mechanism. Ultra high resolution has been achieved in the structural characterization of the nano-hydrotalcite particles allowing identification of the Cr within few layers of the nanoparticles. Compared to a reference hydrotalcite (HT), in which the Cr(VI) retention takes...
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