Influence of catalytic conditions on hydrogen peroxide decomposition by modified activated carbon

摘要

Iron and manganese oxide /activated carbon composite (GACF1M3) was prepared and the experiment conditions including pH ,GACF1M3 dosage and organic effect were evaluated in the H_2O_2 decomposition. The results showed that the decomposition of H_2O_2 increased with time ,GACF1M3 can decompose H_2O_2 about 75% in 120min . The amount of H_2O_2 reflected the maximum usage rate of the GACF1M3 when the dose was 100mg. The highest H_2O_2 decomposition of GACF1M3 was achieved at pH 8.5, the maximum OH- production was pH 5.0.The presence of HA can increase H_2O_2 decomposition while TCP has the opposite effect.