철(Ⅱ)이온에 의한 과산화수소의 분해특성 = Decomposition of Hydrogen Peroxide by Ferrous Ion

다국어 초록 (Multilingual Abstract)

Fenton's reaction is one of the well-known homogeneous oxidations with ferrous ion as a catalyst and hydrogen peroxide as an oxidant. Fenton's reagent produces hydroxyl radicals by the interaction of ferrous ion with hydrogen peroxide. It can decompose organic substances easily because hydroxyl radicals have the powerful oxidizing ability.
In this paper, it was carried out to study on the decomposition of hydrogen peroxide by Fenton's reagent and silica-supported ferrous ion catalyst. The Fenton oxidation was most efficient in the pH range of 3∼5. Increasing the ratio of ferrous iron improved the efficiency of hydrogen peroxide decomposition, but excess dose of ferrous ion over some level did not improve. The optimum ㏖ ratio of ferrous ion to hydrogen peroxide was 1:3. This trend was observed for the silica-supported ferrous ion catalyst. And in this work, the optimum loading of ferrous ion to silica gel for hydrogen peroxide decomposition was 10wt%. If organic compound such as phenol coexists in the solution, hydrogen peroxide can be decomposed rapidly and easily.