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零价铁与双氧水异相Fenton降解活性艳橙X-GN

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林光辉, 吴锦华, 李平, 王向德, 杨波. 零价铁与双氧水异相Fenton降解活性艳橙X-GN[J]. 环境工程学报, 2013, 7(3): 913-917.
引用本文: 林光辉, 吴锦华, 李平, 王向德, 杨波. 零价铁与双氧水异相Fenton降解活性艳橙X-GN[J]. 环境工程学报, 2013, 7(3): 913-917.
shu
Lin Guanghui, Wu Jinhua, Li Ping, Wang Xiangde, Yang Bo. Effective degradation of reactive brilliant orange X-GN by heterogeneous Fenton reaction using zero-valent iron and H2O2[J]. Chinese Journal of Environmental Engineering, 2013, 7(3): 913-917.
Citation: Lin Guanghui, Wu Jinhua, Li Ping, Wang Xiangde, Yang Bo. Effective degradation of reactive brilliant orange X-GN by heterogeneous Fenton reaction using zero-valent iron and H2O2[J]. Chinese Journal of Environmental Engineering, 2013, 7(3): 913-917.
shu

零价铁与双氧水异相Fenton降解活性艳橙X-GN

  • 1.

    华南理工大学环境科学与工程学院,污染控制与生态修复广东省普通高等学校重点实验室, 工业聚集区污染控制与生态修复教育部重点实验室,广州510006

  • 2.

    深圳大学化学与化工学院,深圳518060

  • 基金项目:

    国家自然科学基金资助项目(50708039)

    国家"863"高技术研究发展计划项目(2009AA063902)

    中央高校基本科研业务费资助项目(2009zm0202)

    教育部新教师基金项目(20070561011)

    广东省自然科学基金资助项目(05300188)

  • 中图分类号: X703

Effective degradation of reactive brilliant orange X-GN by heterogeneous Fenton reaction using zero-valent iron and H2O2

  • 1.

    Key Laboratory of Environmental Protection and Eco-Remediation of Guangdong Regular Higher Education Institutions, Key Laboratory of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, School of Environmental Science and Engineering, South China University of Technology, Guangzhou 510006, China

  • 2.

    School of Chemistry and Chemical Engineering, Shenzhen University, Shenzhen 518060, China

  • Fund Project:

摘要

  • 摘要: 采用Fe0与H2O2构成异相Fenton体系降解偶氮染料活性艳橙X-GN,考察了初始pH、H2O2和Fe0投加量、温度等对反应过程的影响。实验结果表明,在初始pH值为3.0、Fe0投加量为0.8 g/L、H2O2投加量为5 mmol/L和反应温度30℃的条件下,反应60 min后活性艳橙降解率达到96.2%。Fe0与H2O2投加量都存在一个最佳范围,当Fe0与H2O2浓度大于0.8 g/L和5 mmol/L时,羟基自由基会通过其他方式消耗,致使活性艳橙降解率下降。酸性条件和提高温度均有利于反应的进行。反应符合准一级动力学,表观反应速率常数k为0.064 min-1(30℃),反应活化能为80.62 kJ/mol。UV-Vis光谱扫描表明,反应过程中活性艳橙的发色基团及苯环结构均被破坏。
    Abstract: Heterogeneous Fenton like system was established with zero-valent iron and hydrogen peroxide to degradate an azo dye reactive brilliant orange (X-GN). The effects of initial pH, ZVI and H2O2 dosage, and reaction temperature were investigated. The results showed that 96.2% degradation efficiency of X-GN after 60 min reaction was achieved in the presence of Fe0 (0.8 g/L) and H2O2 (5 mmol/L) at initial pH 3.0 and 30℃. Optimum dosage for ZVI and H2O2 were found to be 0.8 g/L and 5 mmol/L. ·OH would be consumed in other ways causing the decrease of X-GN degradation efficiency as the dosage of ZVI and H2O2 were higher than 0.8 g/L and 5 mmol/L. Lower pH and higher reaction temperature were favorable for X-GN degradation. The degradation of X-GN followed the pseudo first order kinetics and the pseudo-first order rate constant k was estimated as 0.064 min-1(30℃). The activity energy of X-GN degradation was found to be 80.62 kJ/mol. The UV-vis spectra indicated that both the naphthalene ring and the N=N group of X-GN were destroyed during the reaction.
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出版历程
  • 收稿日期:  2011-10-10
  • 刊出日期:  2013-03-18
林光辉, 吴锦华, 李平, 王向德, 杨波. 零价铁与双氧水异相Fenton降解活性艳橙X-GN[J]. 环境工程学报, 2013, 7(3): 913-917.
引用本文: 林光辉, 吴锦华, 李平, 王向德, 杨波. 零价铁与双氧水异相Fenton降解活性艳橙X-GN[J]. 环境工程学报, 2013, 7(3): 913-917.
shu
Lin Guanghui, Wu Jinhua, Li Ping, Wang Xiangde, Yang Bo. Effective degradation of reactive brilliant orange X-GN by heterogeneous Fenton reaction using zero-valent iron and H2O2[J]. Chinese Journal of Environmental Engineering, 2013, 7(3): 913-917.
Citation: Lin Guanghui, Wu Jinhua, Li Ping, Wang Xiangde, Yang Bo. Effective degradation of reactive brilliant orange X-GN by heterogeneous Fenton reaction using zero-valent iron and H2O2[J]. Chinese Journal of Environmental Engineering, 2013, 7(3): 913-917.
shu

零价铁与双氧水异相Fenton降解活性艳橙X-GN

  • 1. 华南理工大学环境科学与工程学院,污染控制与生态修复广东省普通高等学校重点实验室, 工业聚集区污染控制与生态修复教育部重点实验室,广州510006
  • 2. 深圳大学化学与化工学院,深圳518060
  • 收稿日期:  2011-10-10
基金项目:

国家自然科学基金资助项目(50708039)

国家"863"高技术研究发展计划项目(2009AA063902)

中央高校基本科研业务费资助项目(2009zm0202)

教育部新教师基金项目(20070561011)

广东省自然科学基金资助项目(05300188)

摘要: 采用Fe0与H2O2构成异相Fenton体系降解偶氮染料活性艳橙X-GN,考察了初始pH、H2O2和Fe0投加量、温度等对反应过程的影响。实验结果表明,在初始pH值为3.0、Fe0投加量为0.8 g/L、H2O2投加量为5 mmol/L和反应温度30℃的条件下,反应60 min后活性艳橙降解率达到96.2%。Fe0与H2O2投加量都存在一个最佳范围,当Fe0与H2O2浓度大于0.8 g/L和5 mmol/L时,羟基自由基会通过其他方式消耗,致使活性艳橙降解率下降。酸性条件和提高温度均有利于反应的进行。反应符合准一级动力学,表观反应速率常数k为0.064 min-1(30℃),反应活化能为80.62 kJ/mol。UV-Vis光谱扫描表明,反应过程中活性艳橙的发色基团及苯环结构均被破坏。

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