English  |  正體中文  |  简体中文  |  Items with full text/Total items : 17775/20116 (88%)
Visitors : 9356008      Online Users : 166
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
Scope Tips:
  • please add "double quotation mark" for query phrases to get precise results
  • please goto advance search for comprehansive author search
  • Adv. Search
    HomeLoginUploadHelpAboutAdminister Goto mobile version
    Please use this identifier to cite or link to this item: http://ir.cnu.edu.tw/handle/310902800/19083

    標題: 利用氯化銅/硫酸亞鐵雙金屬製備活性碳觸媒應用於甲基藍染料氧化降解之研究
    Preparation of Activated Carbon Catalysts Immersed with Copper Chloride/Iron Sulfate and Its Application for Methyl Blue Oxidation
    作者: 劉瑞美
    貢獻者: 環境工程與科學系
    關鍵字: 氯化銅/硫酸亞鐵
    Activated carbon
    Copper chloride/ iron sulfate
    Catalytic oxidation
    Methyl blue
    日期: 2007
    上傳時間: 2009-04-12 09:56:59 (UTC+8)
    摘要: 本實驗利用農業廢棄物-椰殼為原料,以氯化銅與硫酸亞鐵雙金屬觸媒作為活化劑,製備成高孔隙活性碳觸媒並應用於染料之降解。探討金屬活化劑(CuCl2/FeSO4)含浸對於活性碳觸媒於濕式氧化反應中甲基藍溶液中COD去除率之影響,利用溫度變化、雙氧水變化、活性碳變化及pH值變化探討反應條件對氧化效果之影響,研究中探討活性碳金屬比例濃度的不同對活性碳觸媒表面特性之影響。研究中發現以適當比例的金屬濃度及活化條件可有效控制活性碳的孔洞體積;而甲基藍之氧化效率則受系統中觸媒劑量與雙氧水濃度之影響甚鋸,觸媒劑量與雙氧水濃度越高其氧化效率越快,顯示活性碳的有效吸附及氧化處理為帶色染料廢水處理之重要關鍵。
    The purpose of this investigation is to prepare the porous activated carbon catalyst for dye degradation with discarded coconut shells by using the copper chloride and iron sulfate as the chemical activation agent. The influent factors on the COD removal of methyl blue in oxidation were considered by reaction temperature, dosage of catalyst, and pH. The metal ratios of Cu to Fe strongly affect the pore properties and surface area of activated carbon. It also indicated the importance of dye adsorption capacity and activity of oxidation in wastewater treatment. It was found that optimum bimetal ratio dominated the pore volume of activated carbon. On the other hand, the increase in pore size and BET surface area on activated carbon benefited the methyl blue adsorption in carbon matrix and the dye diffusion in the pore structure. The efficiency of oxidation was mainly limited by the dosage of catalyst and the oxidant concentration. Increase of the dosage of catalyst and the oxidant concentration could increase the reaction rate of oxidation. It was concluded that the pore properties of activated carbon significantly affected the adsorption behavior of dye in carbon matrix, and the dosage of catalyst and the oxidant concentration played the important roles to determine the oxidation rate of dye in wastewater.
    關聯: 嘉南學報(科技類) 33期:p.119-129
    Appears in Collections:[嘉南學報] 33 期 (2007)
    [環境工程與科學系(所)] 期刊論文

    Files in This Item:

    File Description SizeFormat
    v33_119_129.pdf382KbAdobe PDF2293View/Open

    All items in CNU IR are protected by copyright, with all rights reserved.

    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - Feedback