• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Monatsschrift fur Brauwissenschaft >Fenton reaction acceleration using maltose and ascorbic acid
【24h】

Fenton reaction acceleration using maltose and ascorbic acid

机译：使用麦芽糖和抗坏血酸加速Fenton反应

获取原文
获取原文并翻译 | 示例
       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The degradation of various organic dyes such as methyl red (METR), indigo carmine (INDC) and methylene blue (MEBL) was studied in the presence of the hydrogen peroxide and metal ion (Cu~(2+), Fe~(2+)). Ascorbic acid increased degradation activity of the reaction, which was promoted by sugar (maltose) addition. High oxygen consumption was also observed in the course of the Fenton reaction in the presence of maltose. Some dyes (INDC) needed the presence of oxygen for their degradation while oxygen inhibited the degradation of others (METR). Presence of the maltose in the Fenton reaction increased oxygen consumption. Electron donor (e.g. ascorbic acid) together with the suitable electron acceptor (e.g. oxygen) and an activation mechanism is needed for the additional natural substances degradation. The activation mechanism can be based on various compounds such as transient metals, hydrogen peroxide, nitrite, natural organic compounds degradation products and other. The dye bleaching in the presence of the reducing agent is probably the result of the reversible/irreversible dye reduction and irreversible dye oxidation, which can be realised in the presence or absence of oxygen.
机译：研究了过氧化氢和金属离子（Cu〜（2 +），Fe〜（2+），甲基红（METR），靛蓝胭脂红（INDC）和亚甲基蓝（MEBL）等多种有机染料的降解。 ））。抗坏血酸增加了反应的降解活性，这是通过添加糖（麦芽糖）来促进的。在麦芽糖存在下的芬顿反应过程中也观察到高耗氧量。一些染料（INDC）需要氧气才能降解，而氧气抑制了其他染料（METR）的降解。 Fenton反应中麦芽糖的存在增加了氧气的消耗。需要电子供体（例如抗坏血酸）以及合适的电子受体（例如氧气）和活化机制来进行额外的天然物质降解。活化机理可以基于各种化合物，例如过渡金属，过氧化氢，亚硝酸盐，天然有机化合物的降解产物等。在还原剂存在下的染料漂白可能是可逆/不可逆染料还原和不可逆染料氧化的结果，这可以在有氧或无氧条件下实现。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号