改良 天然 Zeolite에 依한 染料 吸着 效果 = Effect of Modified Natural Zeolites on Adsorption of Dyes

다국어 초록 (Multilingual Abstract)

This study was performed on the adsorption capacities of cation exchanged natural zeolites and active carbon with Congo red(CR), Methyl orange (MO) and Eriochrome Black T (EBT). The order of adsorption capacity of the active carbon was showing no correlation with molecular weight of each adsorbates at the concentration of 10^-3㏖/1. The adsorption capacities of zeolites showed the effects of exchanged cations. The effect was in the decreasing order: Co^+2, Ni^+2, Ca^+2, Fe^+3, Na^+ with MO, Co^+2, Ni^+2, Fe^+3, Ca^+2, Na^+ with EBT and Ca^+2, Co^+2, Fe^+3, Ni^+2, Na^+ with CR. The adsorption capacities of the cation exchanged zeolite is obviously greater than that of natural zeolite with CR. And active carbon is generally more excellent than the zeolite with EBT solution.
The adsorption rate of the adsorbent to the dye showed that intraparticle diffusion was the determining step with the granular active carbon and chemisorption took place on natural zeolite. And IR study showed the complex formation between the cation exchanged zeolites and functional groups of the dyes.

목차 (Table of Contents)

• Ⅰ. 緖論
• Ⅱ. 實驗
• Ⅲ. 結果 및 考察
• 1. 平衡吸着量
• 2. 吸着速度
• Ⅳ. 結論