工业水处理 ›› 2022, Vol. 42 ›› Issue (2): 143-149. doi: 10.19965/j.cnki.iwt.2021-0472

• 试验研究 • 上一篇    下一篇

钼助催化Fenton法降解罗丹明B的效能研究

李明礼1(), 谭凤训1, 罗从伟1,2, 翟学东3, 武道吉1,2, 成小翔1,2   

  1. 1. 山东建筑大学市政与环境工程学院,山东 济南 250101
    2. 山东建筑大学资源与环境创新研究院,山东 济南 250101
    3. 鄂尔多斯市安信泰环保科技有限公司,内蒙古 鄂尔多斯 017000
  • 收稿日期:2021-12-23 出版日期:2022-02-20 发布日期:2022-03-15
  • 作者简介:

    李明礼(1997— ),硕士。电话:15550033661,E⁃mail:

  • 基金资助:
    山东省重大研发计划项目(2020CXGC011203); 山东省博士后创新项目(317202002023); 中央引导地方科技发展基金项目(2020ZY0068); 济南市科研带头人工作室项目(2019CXRC065)

Degradation of Rhodamine B from water by molybdenum-assisted Fenton reaction

Mingli LI1(), Fengxun TAN1, Congwei LUO1,2, Xuedong ZHAI3, Daoji WU1,2, Xiaoxiang CHENG1,2   

  1. 1. School of Municipal and Environmental Engineering, Shandong Jianzhu University, Ji’nan 250101, China
    2. Institute of Resources and Environment Innovation, Shandong Jianzhu University, Ji’nan 250101, China
    3. Ordos Anxintai Environmental Science and Technology Co. , Ltd. , Ordos 017000, China
  • Received:2021-12-23 Online:2022-02-20 Published:2022-03-15

摘要:

为考察钼(Mo)助催化Fenton法对罗丹明B(RhB)降解的效能,研究了Fe2+投加量、过氧化氢(H2O2)投加量、初始pH、钼粉投加量、Cl-投加量、腐殖酸(HA)投加量对RhB去除效果的影响。结果表明:Mo能有效地提升体系中RhB的去除率,Mo作为助催化剂可以有效提升活性羟基自由基的生成效率,且Mo的重复使用性能稳定,经过5次循环利用后,RhB去除率基本保持不变。通过LC-MS/MS技术检测出7种氧化中间产物,推测了RhB在羟基自由基作用下的氧化路径。

关键词: 罗丹明B, Fenton试剂, 降解产物, 钼粉

Abstract:

In order to investigate the degradation efficiency of Rhodamine B(RhB) by molybdenum(Mo) assisted Fenton method,the influences of Fe2+ dosage,H2O2 dosage,initial pH,molybdenum powder dosage,Cl- dosage and HA dosage on RhB removal were studied. The results showed that Mo could effectively improve the degradation rate of RhB in the system. As a co-catalyst,Mo could effectively improve the generation efficiency of active hydroxyl radicals. Moreover,the reuse performance of Mo was stable. After 5 cycles,the degradation rate basically remained unchanged. Seven oxidation intermediates were detected by LC-MS/MS,and the oxidation pathway of RhB under the action of hydroxyl radical was speculated.

Key words: Rhodamine B, Fenton reagent, degradation product, molybdenum powder

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