[1]文奕匀,刘璧铭,刘若愚,等.MoS2助催化芬顿反应降解水中苯酚[J].中国给水排水,2025,41(3):97-104.
　WENYi-yun,LIUBi-ming,LIURuo-yu,et al.MoS2 Facilitating Fenton Reaction for Degradation of Phenol in Water[J].China Water & Wastewater,2025,41(3):97-104.
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MoS2助催化芬顿反应降解水中苯酚

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第41卷 期数: 2025年第3期 页码: 97-104 栏目: 出版日期: 2025-02-01
Title:
MoS2 Facilitating Fenton Reaction for Degradation of Phenol in Water
作者:
文奕匀1， 刘璧铭2， 刘若愚1， 张润泽1， 陈姗姗1， 武海霞1
（1.南京工业大学 城市建设学院，江苏 南京 211816；2.清华大学 环境学院，北京 100084）
Author(s):
WEN　Yi-yun1， LIU　Bi-ming2， LIU　Ruo-yu1， ZHANG　Run-ze1， CHEN　Shan-shan1， WU　Hai-xia1
（1. College of Urban Construction， Nanjing Tech University， Nanjing 211816， China； 2. College of Environment， Tsinghua University， Beijing 100084， China）
关键词:
MoS2;  芬顿反应;  苯酚;  助催化剂
Keywords:
MoS2;  Fenton reaction;  phenol;  co-catalyst
摘要:
为解决传统Fenton反应处理废水时药剂用量大、铁泥产量多等缺点，通过向低Fe2+浓度的Fenton反应系统中投加助催化剂MoS2，对水中的苯酚进行处理，探究其助催化效果。考察了Fe2+、H2O2和MoS2投加量以及pH对苯酚降解效果的影响，并分析了溶液中共存离子对反应系统的影响。结果表明，在Fe2+投加量为30 μmol/L、H2O2投加量为2.5 mmol/L、MoS2投加量为2.0 g/L、pH为4.0的条件下，反应40 min后对苯酚的去除率最高可达84.25%，与相同Fe2+及H2O2投加量的Fenton体系相比提升了6.83%，比相同苯酚去除率的Fenton体系降低了50%~80%的Fe2+投加量。自由基抑制实验表明，MoS2助催化Fenton反应去除苯酚过程中起主要作用的活性物种是·OH。X射线衍射仪（XRD）表征和重复实验证实，MoS2具有较强的催化稳定性和可重复利用性。综上所述，MoS2可促进Fenton反应降解苯酚、减少Fe2+投加量。
Abstract:
To address the limitations of traditional Fenton reaction in wastewater treatment, such as high chemical dosage and excessive iron sludge production, MoS2 was introduced as a co-catalyst in conjunction with low-concentration Fe2+ to treat phenol-contaminated water, and the co-catalytic effects of this approach was investigated. The impact of Fe2+ dosage, H2O2 dosage, MoS2 dosage, and pH on the phenol degradation process was systematically investigated. Additionally, the influence of co-existing ions in solution on the reaction system was analyzed. Under the conditions of Fe2+ of 30 μmol/L, H2O2 of 2.5 mmol/L, MoS2 of 2.0 g/L, and pH of 4.0, the maximum phenol removal efficiency reached 84.25% following a 40?minute reaction period. Compared to the Fenton system with equivalent dosages of Fe2+ and H2O2, the removal efficiency of the modified system was increased by 6.83%. Additionally, the Fe2+ dosage was reduced by 50% to 80% when achieving the same phenol removal efficiency as the traditional Fenton system. Free radical inhibition experiments demonstrated that hydroxyl radical (·OH) was the predominant active species responsible for phenol removal via MoS2 catalyzed Fenton reaction. X-ray diffraction (XRD) analysis and replicate experiments confirmed that MoS2 exhibited robust catalytic stability and reusability. In conclusion, MoS2 facilitated the degradation of phenol via the Fenton reaction while simultaneously reducing the required dosage of Fe2+.

相似文献/References:

[1]王浩羽,高诗,张大奕,等.Fe3+/Fe2+对MNPs催化芬顿反应和回收性能的影响[J].中国给水排水,2023,39(21):104.
　WANGHao-yu,GAOShi,ZHANGDa-yi,et al.Effect of Fe3+/Fe2+ on Catalytic Fenton Reaction and Recycling Performance of MNPs[J].China Water & Wastewater,2023,39(3):104.

更新日期/Last Update: 2025-02-01