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Removal of elemental mercury using bamboo charcoal modified by oxidants |
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Abstract The renewable bioresource of bamboo constitutes an important precursor for activated carbon, and the bamboo charcoal (BC) may act as low-cost sorbent used in the mercury-control. The simple impregnation method was used to modify the BC with KMnO4 and HNO3 separately, their adsorptive potential for elemental mercury was investigated for the first time conducted with a bench-scale bed. BET, XPS, elemental analysis and FT-IR were conducted to study the pore structure and surface chemistry. The results suggested the BET surface area and total pore volume of most modified BC were lower than the original BC but had excellent adsorption potential for elemental mercury even at a relative higher temperature.
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Received: 21 December 2010
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