Bimetal-organic framework derived single-atom-like Co/Fe catalysts for peroxydisulfate activation: The dual amplification of radical and nonradical pathways
文献类型：期刊论文
| 作者 | Deng, Fangxin2,4; Wei, Shoushu2,4; Zhang, Xiangwei2,4; Zhu, Yanping1; Chen, Qingze2,4; Deng, Zhiyi3; Zhu, Runliang2,4
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| 刊名 | COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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| 出版日期 | 2025-01-20 |
| 卷号 | 705页码:10 |
| 关键词 | Single-atom-like catalysts Persulfate-assistant advanced oxidation processes Radical and non-radical pathways Fenton-like reaction |
| ISSN号 | 0927-7757 |
| DOI | 10.1016/j.colsurfa.2024.135610 |
| 英文摘要 | A novel single-atom-like Co/Fe catalyst (i.e., Co/Fe-N-C) was synthesized by pyrolysis of a Zn/Co/Fe zeolitic imidazolate framework, and applied in peroxydisulfate (PDS) activation for removal of organic contaminants from wastewater. The isolated diatomic metal-nitrogen sites were detected by X-ray adsorption fine-structure. The degradation of four contaminants (i.e., phenol, bisphenol A, 2,4-dichlorophenol, and N-methyl-2-pyrrolidone) with a concentration of 100 mg/L could be degraded separately within 20 min by the Co/Fe-N-C system with 10 mmol/L of PDS, 0.5 g/L of catalyst dosage, and initial pH of 3. Besides, 79.2 % of phenol could be mineralized in 120 min, and the turn-over frequency value of the catalyst was calculated to be 27.17 min(-1), which was higher than the commonly reported homogeneous PS-AOPs. Moreover, the Co/Fe-N-C exhibited high stability (mineralization rate over 70 % after 5 cycles), a wide initial pH range (3-9), and high catalytic performance at 5-20 mmol/L of PDS concentrations. Based on the analysis of radical scavenging experiments and electron spin resonance spectra, the radical and non-radical pathways for PDS activation were proved in the system, and the contribution of phenol degradation by each pathway was clarified. |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:001348297100001 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/82076]  |
| 专题 | 中国科学院矿物学与成矿学重点实验室 |
| 通讯作者 | Chen, Qingze |
| 作者单位 | 1.South China Agr Univ, Coll Nat Resources & Environm, Guangdong Lab Lingnan Modern Agr, Guangdong Prov Key Lab Agr & Rural Pollut Abatemen, Guangzhou 510642, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Geochem, CAS Key Lab Mineral & Metallogeny, Guangdong Prov Key Lab Mineral Phys & Mat, Guangzhou 510640, Peoples R China 3.Xiangtan Univ, Coll Environm & Resources, Xiangtan 411105, Hunan, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Deng, Fangxin,Wei, Shoushu,Zhang, Xiangwei,et al. Bimetal-organic framework derived single-atom-like Co/Fe catalysts for peroxydisulfate activation: The dual amplification of radical and nonradical pathways[J]. COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,2025,705:10. |
| APA | Deng, Fangxin.,Wei, Shoushu.,Zhang, Xiangwei.,Zhu, Yanping.,Chen, Qingze.,...&Zhu, Runliang.(2025).Bimetal-organic framework derived single-atom-like Co/Fe catalysts for peroxydisulfate activation: The dual amplification of radical and nonradical pathways.COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,705,10. |
| MLA | Deng, Fangxin,et al."Bimetal-organic framework derived single-atom-like Co/Fe catalysts for peroxydisulfate activation: The dual amplification of radical and nonradical pathways".COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS 705(2025):10. |
入库方式： OAI收割
来源：广州地球化学研究所
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