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XPS, adsorption density and ToF-SIMS measurements were performed on pyrochlore and calcite treated with octyl hydroxamic acid (OHA). XPS results indicated a slight shift of the binding energies of the Ca 2p electrons (0.19eV) on calcite after OHA treatment but the N1s binding energy spectrum of OHA did not change, showing a physical adsorption mechanism. On OHA-treated pyrochlore, the binding energies...
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