COMPARISON OF FTIR CHARACTERIZATION AND MERCURY METAL ADSORPTION PROPERTIES TOWARDS RICE HUSK ACTIVATED CARBON AND RICE HUSK ACTIVATED CARBON IMPREGNATED WITH FE CATALYST
DOI:
https://doi.org/10.35261/barometer.v11i1.13169Abstract
Research on rice husk activated carbon and rice husk activated carbon impregnated with Fe metal catalyst was conducted. Rice husk was carbonized at 400 0C for 2 - 2.5 hours in a furnace, where the time was calculated when the temperature reached 400 0C to obtain rice husk carbon. After the carbonization process, the former rice husk carbon was activated by adding 7% H3PO4 at a ratio of 1: 10. The dried rice husk activated carbon was then heated at 600 0C for 2 - 2.5 hours in a furnace, where the time was calculated when the temperature reached 600 0C. The formed rice husk activated carbon was pulverized, then filtered using a 400-mesh sieve. The rice husk activated carbon was impregnated in a tube and calcined in a furnace for 4 hours at 400 0C, without any gas flow, using Fe (NO3)3.9H2O catalyst. The rice husk activated carbon and impregnated rice husk activated carbon were characterized using FTIR. The impregnated rice husk activated carbon showed absorption in the wavenumber region of 1390–1300 cm-1, indicating the presence of nitro groups, as shown in the absorption regions of 1346.31 cm-1 and 1381.03 cm-1. This indicates the presence of N=O symmetry derived from the Fe (NO3)3 used in the activated carbon impregnation. The adsorption capacity of rice husk activated carbon for Hg metal was 67,13% and that of impregnated rice husk activated carbon was 71,60%
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