高级搜索

蒽醌活化过硫酸盐降解罗丹明B

,  , 

downloadPDF

上一篇

下一篇

朱维晃, 杨瑞, 王宏伟. 蒽醌活化过硫酸盐降解罗丹明B[J]. 环境化学, 2015, 34(10): 1948-1954. doi: 10.7524/j.issn.0254-6108.2015.10.2015030904
引用本文: 朱维晃, 杨瑞, 王宏伟. 蒽醌活化过硫酸盐降解罗丹明B[J]. 环境化学, 2015, 34(10): 1948-1954. doi: 10.7524/j.issn.0254-6108.2015.10.2015030904
shu
ZHU Weihuang, YANG Rui, WANG Hongwei. Degradation of Rhodamine B by quinone-activated persulfate process[J]. Environmental Chemistry, 2015, 34(10): 1948-1954. doi: 10.7524/j.issn.0254-6108.2015.10.2015030904
Citation: ZHU Weihuang, YANG Rui, WANG Hongwei. Degradation of Rhodamine B by quinone-activated persulfate process[J]. Environmental Chemistry, 2015, 34(10): 1948-1954. doi: 10.7524/j.issn.0254-6108.2015.10.2015030904
shu

蒽醌活化过硫酸盐降解罗丹明B

  • 1.

    西安建筑科技大学 西北水资源与环境生态教育部重点实验室, 西安, 710055

  • 基金项目:

    国家自然科学基金(41373093, 41173095, 41103077)

    西建大科技创新基金 (ZX1102)资助.

Degradation of Rhodamine B by quinone-activated persulfate process

  • 1.

    Key Laboratory of Northwest Water Resources, Environment and Ecology, Ministry of Education, Xi'an University of Architecture and Technology, Xi'an, 710055, China

  • Fund Project:

  • 摘要: 本文考察了蒽醌活化过硫酸盐过程中降解罗丹明B的特征.实验发现, Fe(Ⅲ)、不同种类和含量的蒽醌、pH值变化、添加自由基淬灭剂以及光照/非光照等不同条件下, 对过硫酸盐活化过程中降解罗丹明B特征均产生不同程度的影响.结果表明, 体系中不同含量醌活化过硫酸盐的条件下, 罗丹明B表现出不同的降解特征;酸性和碱性条件下, 过硫酸盐活化过程中氧化降解RhB的效能并无明显差别;相对于甲醇, 叔丁醇可能是更有效的半醌自由基淬灭剂;含氧化敏感官能团结构的蒽醌类有机物AQS和AQDS能有效活化过硫酸盐, 促进了过硫酸盐的氧化降解效能, 使得罗丹明B脱色程度达到90%以上, 这主要是反应体系中蒽醌类有机质能有效活化过硫酸盐生成过硫酸根自由基, 使过硫酸盐的氧化性得到显著提高.Fe(Ⅲ)和蒽醌耦合作用对过硫酸盐氧化罗丹明B的活化作用比单纯的蒽醌活化效果更显著.
    Abstract: The current study investigated the influences of the simulated solar light irradiation, different quinones containing redox sensitive chemical structure, ferric iron, pH and racial quencher on the decoloration of Rhodamine B by quinone -activated persulfate process. The results showed the decoloration of Rhodamine B was influenced by activated persulfate in the presence of different concentrations of quinone. However, the extent of Rhodamine B decoloration showed no significant difference in acidic or alkaline conditions. Compared with ethanol, TBA was a more effective quencher for semi-quinone racials. Furthermore, the results indicated that the organic compords containing quinone structure, AQS and AQDS could effectively activate persulfate and enhance the degradation efficiency of persulfate and consequently increase the extent of Rhodamine B decolorazation. It was attributed to the semi-quinone racials generated by the quinones in the reaction system, because semi-quinone racials could effectively activate persulfates. Interaction between of quinone and Fe(Ⅲ) plays a key role in the activation of persulfates.
  • 加载中
  • [1] Rao Y F, Qu L, Yang H, et al. Degradation of carbamazepine by Fe(Ⅱ)-activated persulfate process[J]. Journal of Hazardous Materials, 2014, 268:23-32
    [2] Liang C, Liang C P, Chen C C. pH dependence of persulfate activation by EDTA/Fe(Ⅲ) for degradation of trichloroethylene[J]. Journal of Contaminant Hydrology, 2009, 106(3-4): 173- 182
    [3] Waldemer R H, Tratnyek P G, Johnson R L, et al. Oxidation of chlorinated ethenes by heat activated persulfate: kinetics and products[J]. Environ Sci Technol, 2007, 41(3): 1010-1015
    [4] 刘国强, 王斌楠, 廖云燕, 等. 热活化过硫酸盐降解水中的2-氯苯酚[J]. 环境化学, 2014, 33(8): 1396-1403
    [5] Kang S H, Choi W. Oxidative degradation of organic compounds using zero-valent iron in the presence of natural organic matter serving as an electron shuttle[J]. Environ Sci Technol, 2009, 43(3): 878-883
    [6] Leng Y, Guo W, Shi X, et al. Polyhydroquinone-coated Fe3O4 nanocatalyst for degradation of rhodamine B based on sulfate radicals[J]. Industrial & Engineering Chemistry Research, 2013, 52 (38):13607-13612
    [7] Taguchi K, Fujii S, Yamano S, et al. An approach to evaluate two-electron reduction of 9, 10-phenanthraquinone and redox activity of the hydroquinone associated with oxidative stress[J]. Free Radical Bio Med, 2007, 43(5):789-799
    [8] Chen R, Pignatello J J. Role of quinone intermediates as electron shuttles in Fenton and photoassisted Fenton oxidations of aromatic compounds[J]. Environ Sci Technol, 1997, 31(8): 2399-2406
    [9] 朱维晃, 袁博, 杨瑞. 蒽醌类溶解有机质和模拟太阳光耦合驱动下的Fenton法对罗丹明B脱色特征的影响因素研究[J]. 环境科学学报, 2015, 35(2): 508-513
    [10] Fang G, Gao J, Dionysiou D D, et al. Activation of persulfate by quinones: free radical reactions and implication for the degradation of PCBs[J]. Environ Sci Technol, 2013, 47(9): 4605-4611
    [11] Furman O S, Teel A L, Watts R J. Mechanism of base activation of persulfate[J]. Environ Sci Technol, 2010, 44(16):6423-6428
    [12] 杨世迎; 陈友媛; 胥慧真, 等. 过硫酸盐活化高级氧化新技术[J]. 化学进展, 2008, 20 (9): 1433-1438
    [13] Liang C, Wang Z S, Bruell C J. Influence of pH on persulfate oxidation of TCE at ambient temperatures[J]. Chemosphere, 2007, 66 (1): 106-113
    [14] Zou J, Ma J, Chen L, et al. Rapid acceleration of ferrous iron/peroxymonosulfate oxidation of organic pollutants by promoting Fe(Ⅲ)/Fe(Ⅱ) cycle with hydroxylamine[J]. Environ Sci Technol, 2013, 47 (20): 11685-11691
  • 加载中
WeChat 点击查看大图
计量
  • 文章访问数:  1220
  • HTML全文浏览数:  1120
  • PDF下载数:  595
  • 施引文献:  0
出版历程
  • 收稿日期:  2015-03-09
  • 刊出日期:  2015-10-15
朱维晃, 杨瑞, 王宏伟. 蒽醌活化过硫酸盐降解罗丹明B[J]. 环境化学, 2015, 34(10): 1948-1954. doi: 10.7524/j.issn.0254-6108.2015.10.2015030904
引用本文: 朱维晃, 杨瑞, 王宏伟. 蒽醌活化过硫酸盐降解罗丹明B[J]. 环境化学, 2015, 34(10): 1948-1954. doi: 10.7524/j.issn.0254-6108.2015.10.2015030904
shu
ZHU Weihuang, YANG Rui, WANG Hongwei. Degradation of Rhodamine B by quinone-activated persulfate process[J]. Environmental Chemistry, 2015, 34(10): 1948-1954. doi: 10.7524/j.issn.0254-6108.2015.10.2015030904
Citation: ZHU Weihuang, YANG Rui, WANG Hongwei. Degradation of Rhodamine B by quinone-activated persulfate process[J]. Environmental Chemistry, 2015, 34(10): 1948-1954. doi: 10.7524/j.issn.0254-6108.2015.10.2015030904
shu

蒽醌活化过硫酸盐降解罗丹明B

  • 1. 西安建筑科技大学 西北水资源与环境生态教育部重点实验室, 西安, 710055
  • 收稿日期:  2015-03-09
基金项目:

国家自然科学基金(41373093, 41173095, 41103077)

西建大科技创新基金 (ZX1102)资助.

摘要: 本文考察了蒽醌活化过硫酸盐过程中降解罗丹明B的特征.实验发现, Fe(Ⅲ)、不同种类和含量的蒽醌、pH值变化、添加自由基淬灭剂以及光照/非光照等不同条件下, 对过硫酸盐活化过程中降解罗丹明B特征均产生不同程度的影响.结果表明, 体系中不同含量醌活化过硫酸盐的条件下, 罗丹明B表现出不同的降解特征;酸性和碱性条件下, 过硫酸盐活化过程中氧化降解RhB的效能并无明显差别;相对于甲醇, 叔丁醇可能是更有效的半醌自由基淬灭剂;含氧化敏感官能团结构的蒽醌类有机物AQS和AQDS能有效活化过硫酸盐, 促进了过硫酸盐的氧化降解效能, 使得罗丹明B脱色程度达到90%以上, 这主要是反应体系中蒽醌类有机质能有效活化过硫酸盐生成过硫酸根自由基, 使过硫酸盐的氧化性得到显著提高.Fe(Ⅲ)和蒽醌耦合作用对过硫酸盐氧化罗丹明B的活化作用比单纯的蒽醌活化效果更显著.

English Abstract

    全文HTML

参考文献 (14)

返回顶部

目录

/

返回文章
返回

Copyright © 2019 中国科学院生态环境研究中心