دورية أكاديمية
Oxygen-Centered Organic Radicals-Involved Unified Heterogeneous Self-Fenton Process for Stable Mineralization of Micropollutants in Water.
| العنوان: | Oxygen-Centered Organic Radicals-Involved Unified Heterogeneous Self-Fenton Process for Stable Mineralization of Micropollutants in Water. |
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| المؤلفون: | Zhang L; Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, LIFM, School of Chemistry, IGCME, Sun Yat-sen University, Guangzhou, 510275, China., Huang Y; Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, LIFM, School of Chemistry, IGCME, Sun Yat-sen University, Guangzhou, 510275, China., Yan H; School of Chemical Engineering and Technology, IGCME, Sun Yat-sen University, Zhuhai, 519082, China., Cheng Y; Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, LIFM, School of Chemistry, IGCME, Sun Yat-sen University, Guangzhou, 510275, China., Ye YX; School of Chemical Engineering and Technology, IGCME, Sun Yat-sen University, Zhuhai, 519082, China.; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, Guangdong, 519082, China., Zhu F; Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, LIFM, School of Chemistry, IGCME, Sun Yat-sen University, Guangzhou, 510275, China., Ouyang G; Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, LIFM, School of Chemistry, IGCME, Sun Yat-sen University, Guangzhou, 510275, China.; School of Chemical Engineering and Technology, IGCME, Sun Yat-sen University, Zhuhai, 519082, China.; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, Guangdong, 519082, China. |
| المصدر: | Advanced materials (Deerfield Beach, Fla.) [Adv Mater] 2024 Jul; Vol. 36 (29), pp. e2401162. Date of Electronic Publication: 2024 May 13. |
| نوع المنشور: | Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: Wiley-VCH Country of Publication: Germany NLM ID: 9885358 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1521-4095 (Electronic) Linking ISSN: 09359648 NLM ISO Abbreviation: Adv Mater Subsets: PubMed not MEDLINE; MEDLINE |
| أسماء مطبوعة: | Publication: Sept. 3, 1997- : Weinheim : Wiley-VCH Original Publication: Deerfield Beach, FL : VCH Publishers, 1989- |
| مستخلص: | Removing organic micropollutants from water through photocatalysis is hindered by catalyst instability and substantial residuals from incomplete mineralization. Here, a novel water treatment paradigm, the unified heterogeneous self-Fenton process (UHSFP), which achieved an impressive 32% photon utilization efficiency at 470 nm, and a significant 94% mineralization of organic micropollutants-all without the continual addition of oxidants and iron ions is presented. In UHSFP, the active species differs fundamentally from traditional photocatalytic processes. One electron acceptor unit of photocatalyst acquires only one photogenerated electron to convert into oxygen-centered organic radical (OCOR), then spontaneously completing subsequent processes, including pollutant degradation, hydrogen peroxide generation, activation, and mineralization of organic micropollutants. By bolstering electron-transfer capabilities and diminishing catalyst affinity for oxygen in the photocatalytic process, the generation of superoxide radicals is effectively suppressed, preventing detrimental attacks on the catalyst. This study introduces an innovative and cost-effective strategy for the efficient and stable mineralization of organic micropollutants, eliminating the necessity for continuous chemical inputs, providing a new perspective on water treatment technologies. (© 2024 Wiley‐VCH GmbH.) |
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| معلومات مُعتمدة: | 22206209 National Natural Science Foundation of China; 22336007 National Natural Science Foundation of China; 2022A1515011953 Natural Science Foundation of Guangdong Province |
| فهرسة مساهمة: | Keywords: mineralization of organic micropollutants; oxygen‐centered organic radical; photocatalysis; self‐Fenton; water remediation |
| تواريخ الأحداث: | Date Created: 20240507 Latest Revision: 20240718 |
| رمز التحديث: | 20240718 |
| DOI: | 10.1002/adma.202401162 |
| PMID: | 38713477 |
| قاعدة البيانات: | MEDLINE |
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