Ascorbic acid enhanced MnFe2O4/peroxymonosulfate oxidation of organic pollutant: Key role of singlet oxygen generation and Fe/Mn cycling
文献类型： 外文期刊
作者： Wang, Yanhao 1 ; Liu, Mingyang 1 ; Zang, Yanqiang 3 ; Zhou, Chengzhi 1 ; Xin, Yanjun 1 ; Chai, Chao 1 ; Li, Yan 4 ; Ma, Dong 1 ;
作者机构： 1.Qingdao Agr Univ, Coll Resource & Environm, Qingdao 266109, Peoples R China
2.Ocean Univ China, Key Lab Marine Environm & Ecol, Minist Educ, Qingdao 266100, Peoples R China
3.Weifang Garden & Sanitat Serv Ctr, Weifang 261031, Peoples R China
4.Shandong Acad Agr Sci, Inst Agr Resources & Environm, Jinan 250100, Peoples R China
5.Qingdao Agr Univ, Coll Resource & Environm, 700 Changcheng Rd, Qingdao 266109, Peoples R China
关键词： Peroxymonosulfate; Ascorbic acid; Singlet oxygen; Fe; mn cycling
期刊名称：JOURNAL OF ENVIRONMENTAL MANAGEMENT （ 影响因子：8.91； 五年影响因子：8.549 ）
ISSN： 0301-4797
年卷期： 2022 年 321 卷
页码：
收录情况： SCI
摘要： The activated peroxymonosulfate (PMS) process has been widely applied for degrading organic pollutants. However, its application is limited by low metal cycling, and the contribution of oxygen species remains unclear. Here, the crystal structure, surface morphology, and elemental valence of the synthesized manganese ferrite (MnFe2O4) catalyst were investigated by SEM, HRTEM, XRD, and XPS. A novel MnFe2O4/PMS/ascorbic acid (AA) system was constructed to enhance the Fe/Mn cycling on the surfaces of the MnFe2O4 catalyst. The addition of AA can significantly increase the decomposition of organic pollutants, and the apparent rate constant of the MnFe2O4/PMS/AA system is 8.2 times higher than that of MnFe2O4/PMS. AA facilitates the reduction of Fe/Mn (III) and the dissolution of Fe/Mn(II), creating a Fe/Mn cycle between the heterogeneous and homogeneous interfaces of the catalyst. Furthermore, AA greatly increases the activity of adsorbed oxygen on the catalyst surfaces, generating a large amount of singlet oxygen (1O2), which contributes significantly to the destruction of organic pollutants. The efficient, fast, and environmentally friendly PMS activation method in this study can provide reliable technical support for treating refractory organic pollutants in water.
- 相关文献
作者其他论文 更多>>
-
Effect of lateral flushing on emitter clogging in drip irrigation using high-sediment water
作者：Ma, Changjian;Li, Yan;Shi, Ning;Liu, Shenglin;Liu, Zhaohui;Sun, Zeqiang;Ma, Changjian;Hu, Xinhui;Muhammad, Tahir;Jiang, Cuiling;Muhammad, Tahir
关键词：Emitter structure; Anti -clogging; Drip line flushing; Hydraulic performance
-
The Biogas Production Potential and Community Structure Characteristics of the Co-Digestion of Dairy Manure and Tomato Residues
作者：Wang, Yanqin;Li, Yan;Yao, Li;Fu, Longyun;Liu, Zhaodong
关键词：dairy manure; tomato residues; solid content of digestion substrate; gas production performance; microbial community structure
-
Replacing Chemical Fertilizer with Separated Biogas Slurry to Reduce Soil Nitrogen Loss and Increase Crop Yield-A Two-Year Field Study
作者：Zhao, Zichao;Fu, Longyun;Yao, Li;Wang, Yanqin;Li, Yan;Zhao, Zichao
关键词：biogas slurry; soil N loss; crop yield; nitrogen use efficiency
-
Enhancing Wheat Yield Through Microbial Organic Fertilizer Substitution for Partial Chemical Fertilization: Regulation of Nitrogen Conversion and Utilization
作者：Li, Yan;Wei, Jianlin;Ma, Lei;Wu, Xiaobin;Zheng, Fuli;Cui, Rongzong;Tan, Deshui;Li, Yan;Wei, Jianlin;Ma, Lei;Wu, Xiaobin;Zheng, Fuli;Cui, Rongzong;Tan, Deshui;Li, Yan;Wei, Jianlin;Ma, Lei;Wu, Xiaobin;Zheng, Fuli;Cui, Rongzong;Tan, Deshui
关键词：Microbial organic fertilizer; Soil nitrogen; Nitrogen absorption; Nitrogen utilization; Wheat yield
-
Fast and sensitive differential diagnosis of pseudorabies virus-infected versus pseudorabies virus-vaccinated swine using CRISPR-Cas12a
作者：Wang, Hao;Li, Hongzhao;Ye, Chen;Han, Meiqing;Teng, Lin;Yue, Min;Li, Yan;Wang, Hao;Li, Hongzhao;Yue, Min;Li, Yan;Tang, Bo;Teng, Lin;Yue, Min;Li, Yan;Yue, Min
关键词：pseudorabies virus; PRV; diagnostic; CRISPR-Cas12a; nucleic acid detection
-
Effect of fertilization on emitter clogging in drip irrigation using high sediment water: Perspective of sediment discharge capacity
作者：Hou, Peng;Li, Yan;Wang, Xuejun;Shi, Ning;Ma, Changjian;Hou, Peng;Liu, Lu;Tahir, Muhammad;Xiao, Yang;Li, Yunkai;Liu, Lu;Tahir, Muhammad;Xiao, Yang;Li, Yunkai;Ma, Changjian
关键词：Flow channel; Control threshold for particle size; Sediment deposition and discharge ratio
-
Ultrasound modification of pectin and the mechanism of its interaction with cyanidin-3-O-glucoside
作者：Luo, Fangjian;Zhang, Zhongyuan;Lu, Fengqin;Li, Dajing;Li, Yan;Niu, Liying;Xu, Yayuan;Feng, Lei;Dai, Zhuqing;Luo, Fangjian;Zhang, Zhongyuan;Lu, Fengqin;Li, Dajing;Zhou, Cunshan;Li, Yan;Xu, Yayuan;Feng, Lei;Dai, Zhuqing
关键词：Pectin structure; Anthocyanin; Ultrasonic intensity; Non -covalent interaction; Binding ability
