Molecular structure-dependent contribution of reactive species to organic pollutant degradation using nanosheet Bi2Fe4O9 activated peroxymonosulfate
文献类型：期刊论文
| 作者 | Rao, Yongfang4; Zhou, Chuanyi4; Wu, Puqiu3; Fan, Jiahui4; Zhang, Yuanyuan4; Yang, Honghui2; Pu, Shengyan1 |
| 刊名 | JOURNAL OF HAZARDOUS MATERIALS
 |
| 出版日期 | 2023 |
| 卷号 | 452页码:131240 |
| 关键词 | SELECTIVE DEGRADATION ADVANCED OXIDATION VALENT IRON ACTIVATION CONTAMINANTS IRRADIATION FE(IV) OXYGEN |
| ISSN号 | 0304-3894 |
| DOI | 10.1016/j.jhazmat.2023.131240 |
| 英文摘要 | Iron-based catalysts have attracted increasing attention in heterogeneous activation of peroxymonosulfate (PMS). However, the activity of most iron-based heterogenous catalysts is not satisfactory for practical application and the proposed activation mechanisms of PMS by iron-based heterogenous catalyst vary case by case. This study prepared Bi2Fe4O9 (BFO) nanosheet with super high activity toward PMS, which was comparable to its homogeneous counterpart at pH 3.0 and superior to its homogeneous counterpart at pH 7.0. Fe sites, lattice oxygen and oxygen vacancies on BFO surface were believed to be involved in the activation of PMS. By using electron paramagnetic resonance (EPR), radical scavenging tests, 57Fe M?ssbauer and 18O isotope-labeling technique, the generation of reactive species including sulfate radicals, hydroxyl radicals, superoxide and Fe (IV) were confirmed in BFO/PMS system. However, the contribution of reactive species to the elimination of organic pollutants very much depends on their molecular structure. The effect of water matrices on the elimination of organic pollutants also hinges on their molecular structure. This study implies that the molecular structure of organic pollutants governs their oxidation mechanism and their fate in iron-based heterogeneous Fenton-like system and further broadens our knowledge on the activation mechanism of PMS by iron-based heterogeneous catalyst. ? 2023 Elsevier B.V. |
| WOS研究方向 | Engineering, Environmental ; Environmental Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000975943500001 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/80217]  |
| 专题 | 中国科学院矿物学与成矿学重点实验室 |
| 作者单位 | 1.State Key Laboratory of Geohazard Prevention and Geoenvironment Protection (Chengdu University of Technology), 1#, Dongsanlu, Erxianqiao, Sichuan, Chengdu; 610059, China 2.Department of Applied Chemistry, Xi' an Jiaotong University, Xi'an; 710049, China 3.CAS Key Laboratory of Mineralogy and Metallogeny/Guangdong Provincial Key Laboratory of Mineral Physics and Materials, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou; 510640, China 4.Department of Environmental Science and Engineering, Xi' an Jiaotong University, Xi'an; 710049, China |
| 推荐引用方式 GB/T 7714 | Rao, Yongfang,Zhou, Chuanyi,Wu, Puqiu,et al. Molecular structure-dependent contribution of reactive species to organic pollutant degradation using nanosheet Bi2Fe4O9 activated peroxymonosulfate[J]. JOURNAL OF HAZARDOUS MATERIALS,2023,452:131240. |
| APA | Rao, Yongfang.,Zhou, Chuanyi.,Wu, Puqiu.,Fan, Jiahui.,Zhang, Yuanyuan.,...&Pu, Shengyan.(2023).Molecular structure-dependent contribution of reactive species to organic pollutant degradation using nanosheet Bi2Fe4O9 activated peroxymonosulfate.JOURNAL OF HAZARDOUS MATERIALS,452,131240. |
| MLA | Rao, Yongfang,et al."Molecular structure-dependent contribution of reactive species to organic pollutant degradation using nanosheet Bi2Fe4O9 activated peroxymonosulfate".JOURNAL OF HAZARDOUS MATERIALS 452(2023):131240. |
入库方式： OAI收割
来源：广州地球化学研究所
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