English  |  正體中文  |  简体中文  |  Items with full text/Total items : 17775/20116 (88%)
Visitors : 9389810      Online Users : 441
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/310902800/28550

    標題: Effect of the iron oxide catalyst on o-toluidine oxidation by the fluidized-bed Fenton process
    作者: Su, Chia-Chi
    Fan, Chun-Cheng
    Anotai, Jin
    Lu, Ming-Chun
    貢獻者: 環境資源管理系
    關鍵字: fluidized-bed Fenton process
    iron oxide
    ferrous ions
    Fenton-like process
    日期: 2014-01
    上傳時間: 2015-05-06 21:20:22 (UTC+8)
    出版者: Taylor & Francis Ltd
    摘要: This study investigates the effects of the Fe2+ concentration and synthetic iron oxide catalysts on o-toluidine degradation using a fluidized-bed Fenton process. The mineralization of o-toluidine in the synthetic catalyst system is also examined. The H3.5 and H7.3 Fe/SiO2 and A7.8 and A12.5 Fe/SiO2 catalysts were successfully synthesized by adding H2O2 and injecting air process, respectively. The optimum initial ferrous ion concentration for degradation of 1mM o-toluidine was 1 mM. Experimental results reveal that 1mM o-toluidine can be 100% degraded at 60 and 120min in the modified fluidized-bed Fenton process with A7.8 Fe/SiO2 and the conventional fluidized-bed Fenton process with SiO2 carrier, respectively, when the optimum conditions of 1mM Fe2+ and 17mM H2O2 at pH 3 were used. The A7.8 Fe/SiO2 catalyst had a stronger oxidation ability than the H3.5 Fe/SiO2, H7.3 Fe/SiO2 and A12.5 Fe/SiO2 catalysts, and was attributed to the high iron content on the surface of the SiO2 support. The Fenton and Fenton-like reactions occurred in the A7.8 Fe/SiO2 catalyst system. Degradation of o-toluidine in the Fenton-like process follows pseudo-first-order kinetics. The A7.8 Fe/SiO2 catalyst efficiently enhanced o-toluidine oxidation under the pH range of 2-4.
    關聯: Environmental Technology, v.35 n.1, pp.89-94
    Appears in Collections:[環境資源管理系(所)] 期刊論文

    Files in This Item:

    File Description SizeFormat

    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