奈米金銀及甲殼素活性碳之濾網吸附動力模式

A study of adsorption dynamic model of nano Au, Ag, Chitosan coated activated carbon filters

徐俊國(Chun-Kuo Hsu)

指導教授 ： 曾昭衡

國立臺北科技大學/工程學院/環境規劃與管理研究所/碩士(2014年)

摘要

市面上各種濾網移除空氣污染物之技術各有優缺點。本研究針對氣狀污染物(甲醛、丙酮、一氧化碳)和生物性氣膠(真菌、細菌)作進一步探討。使用活性碳濾網並添加奈米金銀、奈米銀、和幾丁聚醣，由實驗設計之系統測試去除效率和吸附量，另將實場檢測結果與實驗做比較。本研究採用擬一階吸附動力模式及擬二階吸附動力模式兩種方法，分別進行各濾網對空氣污染物之模擬與探討，以求得較適合模擬之吸附動力式。
實驗結果，添加幾丁聚醣(chitosan)有效增加甲醛之去除率 (16.33%)、丙酮和一氧化碳則不明顯；添加奈米金銀(Au-Ag)增加甲醛之去除率(20 %)一氧化碳之去除率(7.11%)，丙酮則不明顯。
實場檢測，停車場測試結果，添加奈米金銀增加一氧化碳之去除效率(7.48 %)。添加奈米銀增加細菌之去除效率(19.57 %)，添加幾丁聚醣增加真菌(17.1%)、細菌(35 %)之去除率。幼稚園測試結果，添加奈米金銀增加甲醛之去除率(9.02%)，添加幾丁聚醣有效增加甲醛之去除率 (42%)。
吸附動力模式模擬結果，甲醛、丙酮及一氧化碳吸附較吻合擬二階吸附動力模式。此外，添加奈米金銀、奈米銀有助於提高濾網對甲醛、丙酮和一氧化碳之吸附量。

關鍵字

活性碳 ； 奈米金銀 ； 甲殼素 ； 室內空氣品質 ； 吸附動力模式

並列摘要

There are many advantages and disadvantages of filters technologies of removal air pollutants in the market. The study focuses on gaseous pollutants such as Formaldehyde (HCHO), Volatile Organic Compounds, VOC (C3H6), Carbon monoxide (CO) and bioaerosol (Bacteria and fungi) . To take activated carbon filters added nano gold (Au)- silver (Ag) , nano Ag and chitosan , tested removal efficiency and adsorption capacity by experimental studies. Moreover ,To be compared with the field studies and experiment studies. The study simulated and discuss air pollutants by used pseudo-first-order model and pseudo-second-order model , in order to achieve appropriate simulation.
The experimental results showed that the removal efficiency of HCHO was increased by 16.33% when chitosan added , but not obvious on VOCs and CO. The removal efficiency of both HCHO and CO were increased by 20% and 7.11% when nano Au-Ag added in activated carbon filter.
The parking lot studies showed the removal efficiency of CO was increased by 7.48% when nano Au-Ag added in activated carbon filter. The removal efficiency of Bacteria was increased by 19.57% , Fungi was increased by 17.1% when nano Ag added in activated carbon filter, the removal efficiency of Bacteria was increased by 35% when chitosan added. The kindergarten (KG) studies the removal efficiency of HCHO was increased by 9.02% when nano Au-Ag added in activated carbon filter. The removal efficiency of HCHO was increased by 42% when chitosan added in activated carbon filter.
Adsorption dynamic model results HCHO 、 C3H6 and CO coincided pseudo-second-order model, it is effectively increased HCHO ,C3H6, CO adsorption capacity by added nano Au-Ag and nano Ag.

並列關鍵字

Activated carbon ； Nano Au-Ag ； Chitosan ； Indoor air quality ； Adsorption dynamic model

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