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pH对无氧条件下零价铝直接还原酸性橙7的影响

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杨世迎, 石超, 徐婷, 郑迪. pH对无氧条件下零价铝直接还原酸性橙7的影响[J]. 环境化学, 2015, 34(10): 1785-1790. doi: 10.7524/j.issn.0254-6108.2015.10.2015042403
引用本文: 杨世迎, 石超, 徐婷, 郑迪. pH对无氧条件下零价铝直接还原酸性橙7的影响[J]. 环境化学, 2015, 34(10): 1785-1790. doi: 10.7524/j.issn.0254-6108.2015.10.2015042403
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YANG Shiying, SHI Chao, XU Ting, ZHENG Di. Effect of pH on directly reductive decolorization of Acid Orange 7 under anaerobic condition by zero-valent aluminum[J]. Environmental Chemistry, 2015, 34(10): 1785-1790. doi: 10.7524/j.issn.0254-6108.2015.10.2015042403
Citation: YANG Shiying, SHI Chao, XU Ting, ZHENG Di. Effect of pH on directly reductive decolorization of Acid Orange 7 under anaerobic condition by zero-valent aluminum[J]. Environmental Chemistry, 2015, 34(10): 1785-1790. doi: 10.7524/j.issn.0254-6108.2015.10.2015042403
shu

pH对无氧条件下零价铝直接还原酸性橙7的影响

  • 1.

    海洋环境与生态教育部重点实验室, 青岛, 266100;

  • 2.

    中国海洋大学环境科学与工程学院, 青岛, 266100

  • 基金项目:

    国家自然科学基金(21107101)资助.

Effect of pH on directly reductive decolorization of Acid Orange 7 under anaerobic condition by zero-valent aluminum

  • 1.

    Key Laboratory of Marine Environment and Ecology, Ministry of Education, Qingdao, 266100, China;

  • 2.

    College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China

  • Fund Project:

  • 摘要: 探讨了零价铝(ZVAl)在不同pH(1.0—3.0, 8.0—12.0)条件下对于典型偶氮染料酸性橙7(AO7)的直接还原脱色效果, 实验表明, ZVAl酸性和碱性条件下对于AO7表现出不同的还原脱色性能.与酸性条件相比(pH = 1.0时, 240 min内AO7还原脱色率17%), ZVAl在碱性条件下对于AO7的还原脱色效果优良, 而且不需要诱导时间, 甚至能够在pH = 12.0时, 60 min内还原脱色AO7达72.3%;在碳酸钠缓冲溶液中, ZVAl能够更加有效地还原脱色AO7, 在pH = 12.0时, 60 min内可以还原脱色AO7达到97%.
    Abstract: Effect of pH (1.0—3.0, 8.0—12.0) on directly reductive decolorization of Acid Orange 7 (AO7), a typical azo dye, under anaerobic condition by zero-valent aluminum (ZVAl) was investigated. The results show that ZVAl had different effects under acidic and alkaline condition on reductive decolorization of AO7. Compared with acidic conditions (17% at pH=1.0 at 240 min), ZVAl under alkaline condition reductively decolorized AO7 more effectively (72.3% at pH 12.0 at 60 min), and the reaction did not need any induction time. Especially in carbonate buffered solution, ZVAl reductively decolorized AO7 up to 97% at pH 12.0 in 60 min.
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  • 收稿日期:  2015-04-24
  • 刊出日期:  2015-10-15
杨世迎, 石超, 徐婷, 郑迪. pH对无氧条件下零价铝直接还原酸性橙7的影响[J]. 环境化学, 2015, 34(10): 1785-1790. doi: 10.7524/j.issn.0254-6108.2015.10.2015042403
引用本文: 杨世迎, 石超, 徐婷, 郑迪. pH对无氧条件下零价铝直接还原酸性橙7的影响[J]. 环境化学, 2015, 34(10): 1785-1790. doi: 10.7524/j.issn.0254-6108.2015.10.2015042403
shu
YANG Shiying, SHI Chao, XU Ting, ZHENG Di. Effect of pH on directly reductive decolorization of Acid Orange 7 under anaerobic condition by zero-valent aluminum[J]. Environmental Chemistry, 2015, 34(10): 1785-1790. doi: 10.7524/j.issn.0254-6108.2015.10.2015042403
Citation: YANG Shiying, SHI Chao, XU Ting, ZHENG Di. Effect of pH on directly reductive decolorization of Acid Orange 7 under anaerobic condition by zero-valent aluminum[J]. Environmental Chemistry, 2015, 34(10): 1785-1790. doi: 10.7524/j.issn.0254-6108.2015.10.2015042403
shu

pH对无氧条件下零价铝直接还原酸性橙7的影响

  • 1.  海洋环境与生态教育部重点实验室, 青岛, 266100;
  • 2.  中国海洋大学环境科学与工程学院, 青岛, 266100
  • 收稿日期:  2015-04-24
基金项目:

国家自然科学基金(21107101)资助.

摘要: 探讨了零价铝(ZVAl)在不同pH(1.0—3.0, 8.0—12.0)条件下对于典型偶氮染料酸性橙7(AO7)的直接还原脱色效果, 实验表明, ZVAl酸性和碱性条件下对于AO7表现出不同的还原脱色性能.与酸性条件相比(pH = 1.0时, 240 min内AO7还原脱色率17%), ZVAl在碱性条件下对于AO7的还原脱色效果优良, 而且不需要诱导时间, 甚至能够在pH = 12.0时, 60 min内还原脱色AO7达72.3%;在碳酸钠缓冲溶液中, ZVAl能够更加有效地还原脱色AO7, 在pH = 12.0时, 60 min内可以还原脱色AO7达到97%.

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