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zl05024073金蟲 (小有名氣)
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[求助]
請(qǐng)大神幫忙修改下摘要 活性炭
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KOH活化法制備牛糞活性炭的研究 Study on preparation of activated carbon from cow dung by chemical activation with potassium hydroxide 摘要：研究以牛糞為原料采用KOH活化法制備活性炭。考察了浸漬比、活化劑濃度、活化時(shí)間和活化溫度等不同制備條件對(duì)牛糞活性炭樣品性能的影響。實(shí)驗(yàn)結(jié)果表明，在浸漬比為1:4，KOH質(zhì)量分?jǐn)?shù)35%，活化時(shí)間60min，活化溫度700℃條件下制備的活性炭性能最佳，制得的活性炭比表面積為979.82m2／g，碘吸附值可達(dá)796.37mg/g，亞甲基藍(lán)吸附值可達(dá)10.02ml/0.1g。并將制備的牛糞活性炭應(yīng)用于對(duì)Cr(Ⅵ)的吸附，研究了最佳工藝條件下制備的活性炭吸附Cr(Ⅵ)的適宜條件。 Abstract In this study, activated carbon was prepared from cow dung using KOH as activator. Different preparation conditions on the performance of the cow dung activated carbon samples were studied, including the impregnation ratio, concentration of activators, activation time and activation temperature. The results showed that the preparation of the activated carbon have the best performance under the optimum conditions of impregnation ratio 1:4, KOH mass fraction 35%, activation time 60 min, and activation temperature 700℃, the relative surface area of 979.82 m2／g, the iodine adsorption capability of up to 796.37mg / g, and the methylene blue adsorption capability of 10.02ml/0.1g. The suitable adsorption conditions of Cr (Ⅵ) were studied using cow dung activated carbon which was prepared under the optimum conditions. |
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zl05024073: 金幣+50, 翻譯EPI+1, ★★★★★最佳答案, 謝謝 2013-02-27 14:31:13
zl05024073: 金幣+50, 翻譯EPI+1, ★★★★★最佳答案, 謝謝 2013-02-27 14:31:13
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Study on preparation of activated carbon from cow dung by chemical activation with potassium hydroxide Abstract: Activated carbon was prepared from cow dung using KOH as the activator in this study. Different conditions on the performance of the cow dung activated carbon samples were studied, which included the impregnation ratio, the concentration of activators, the activation time and the activation temperature. It shows that the synthesized activated carbon has the best performance under the conditions of an impregnation ratio of 1:4, a KOH mass fraction of 35%, an activation time of 60 min and the activation temperature of 700℃, under which the relative surface area can reach 979.82 m2／g, the adsorption of iodine gets up to 796.37mg / g, and the adsorption of methylene blue can be up to 10.02ml/0.1g. In addition, the appropriate conditions for Cr (Ⅵ) absorption were studied using cow dung activated carbon which was prepared under the optimum conditions. |
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