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Activated carbon was prepared from longan seed by chemical activation with sodium hydroxide (NaOH). The longan seed activated carbon (LSAC) was characterized for surface area and pore volume and used as an adsorbent for Cr(VI) removal from aqueous solutions in batch adsorption experiments. The effect of shaking speed, pH, LSAC dosage and temperature were studied. The results show that LSAC has a high...
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