<link rel="stylesheet" href="styles.cf390c6bfbe7555f.css">

學術出版;;Publications

Permanent URI for this communityhdl:11536/1

收集所有交通大學研究人員與學生個人或團體所發表之各項學術著作，涵蓋期刊論文、教師專書、學位論文等項。;;Collections of Publications of NCTU Researchers and Students Like Journal Papers and Thesis.

Browse

🏛️國立陽明交通大學機構典藏

Subject: search.filters.subject.adsorbent

Search Results

Now showing 1 - 3 of 3
  • Thumbnail Image
    Item type:Item,
    Removal of Hg2+ from Aqueous Solution Using a Novel Composite Carbon Adsorbent
    (2009-05-15)
    Chang, Yu-Hsin
    ;
    Hsieh, Kuo-Huang
    ;
    Chang, Feng-Chih
    ;
    應用化學系
    ;
    Department of Applied Chemistry
    A novel composite carbon adsorbent (GCA) has been prepared by immobilizing activated carbon and genipin-crosslinked chitosan into calcium alginate gel beads via entrapment and applied to the removal of mercury (Hg2+) ions from aqueous solution (e.g., drinking water). Two bead sizes and two mixing ratios of components were obtained and characterized. Batch experiments were performed to study the Uptake equilibrium and kinetics, of Hg2+ ions by the GCA. The Hg2+ adsorption capacity of GCA was found to be dependent of pH and independent of size of the adsorbent. The Hg2+ adsorption rate of GCA increases with decreasing its bead size. However, both adsorption capacity and rate of GCA for Hg2+ increase with increasing its chitosan content. Otherwise, it was shown that the GCA has higher Hg2+ adsorption capacity and rate than activated carbon, which might he caused by the incorporation of chitosan into the GCA. The maximum Hg2+ adsorption capacity of GCA was found to be 576 mg/g, which is over seven times higher than that of activated carbon. Our results reveal the uniform distribution of activated carbon and chitosan within the alginate gel bead and that Hg2+ ions can diffuse inside the bead. It also demonstrated the feasibility of using this GCA for Hg2+ removal at low pH values. The Hg2+ absorbed beads of the GCA can be effectivelY regenerated and reused using H2SO4. (C) 2009 Wiley Periodicals, Inc. J Appl Polym Sci 112: 2445-2454, 2009
  • Thumbnail Image
    Item type:Item,
    以稻殼廢棄物資源化製備多孔矽基材料並探討其應用於VOCs與CO2吸附之吸附特性研究
    (2015)
    白曛綾
    ;
    BAI Hsunling
    ;
    國立交通大學環境工程研究所
    本研究擬將稻殼農業廢棄物再利用，以不同之方法(高溫鹼萃取水熱法、低溫萃取快速 水熱法以及氣膠凝合快速製程)製備成不同孔洞結構特性之多孔材料，並探討其在應用至吸 附VOCs 與CO2 時，這些中/微孔材料之孔洞結構特性對於VOCs 與CO2 吸附效能之影響。 本研究擬以三年之計畫期程，探討利用稻殼農業廢棄物資源化再利用，分別利用三種不同製 備方法來製備多孔吸附材料，並將所製得的多孔吸附材料分別對VOCs 和CO2 進行吸附行 為探討，以釐清一維、二維與三微孔洞結構、比表面積、中/微孔比例、孔徑大小等孔洞結 構特性對於VOCs 和CO2 之吸附效能影響，並獲得中孔洞材料最佳化組成配方與工業化製 造流程。 於第一年計畫中，本研究將以高溫鹼萃取水熱法將稻殼農業廢棄物中之矽化物萃取出， 以製備MCM-41、SBA-15與SBA-16三種多孔材料，藉由改變前驅物界面活性劑模板比例， 進而改變材料最終之孔洞型態，希望釐清孔洞結構特性對於VOCs(以丙酮及甲苯為代表污染 物種)吸脫附能力的影響。第二年計畫將比較低溫萃取快速水熱法與低溫萃取快速水熱法兩 種不同之矽化物萃取方法之優劣性，並藉由胺基改質之材料進行CO2吸附測試，以探討孔洞 結構特性對於CO2吸脫附能力的影響。在前兩年計畫找出最佳材料結構後，第三年之計畫則 將嘗試以氣膠凝合快速製程之方式製造多孔吸附材料，期能以工程化之氣膠凝合程序方式， 將稻殼快速資源化製造成多孔材料，並用以吸附VOCs與CO2兩種氣體，最後評估比較三年 計畫中所使用之三種不同吸附劑製造方法之成本效益與耗能。本研究預計在三年計畫結束後， 將可顯著降低材料製造成本，並設計出最適合應用於VOCs與CO2吸附之中孔洞材料，以獲 致更佳之吸附效能，方便推廣應用至實場中。
  • Thumbnail Image
    Item type:Item,
    Control of VOCs emissions by condenser pre-treatment in a semiconductor fab
    (2005-04-11)
    Lin, YC
    ;
    Chang, FT
    ;
    Bai, HL
    ;
    Pei, BS
    ;
    環境工程研究所
    The performance of a modified design of local condensers to pre-treat a variety of volatile organic compounds (VOCs) emitted from the stripping process of a semiconductor fab was tested in this study. The reaction temperature of the condensers was controlled at around 10 degrees C, it is relatively higher than the traditional condenser reaction temperature. Both VOCs and water vapors were condensed and formed liquid films. This resulted in an enhancement of the VOCs removals, especially for VOCs of high boiling points or solubility. This can help to prevent the follow up zeolite concentrator from damage. The performance of the integrated system of condenser/zeolite concentrator could, therefore, remain highly efficient for a longer operation time. Its annualized cost would also be lower than installing the zeolite concentrator only. (c) 2005 Elsevier B.V. All rights reserved.