{"title":"超薄金属有机框架与碳量子点协同改善光电化学水氧化和盐酸四环素降解性能","authors":"Ruyi Wang, Xingzhi Li, Yuxin Kan, Wenjun Fang, Caiyun Chen, Yongyan Chen, Lingling Wang, Yong Jia","doi":"10.1016/j.seppur.2024.130589","DOIUrl":null,"url":null,"abstract":"Finding clean dual functional materials which can simultaneously alleviate energy and environmental issues is currently a research hotspot. In our work, TiO<sub>2</sub>/CQDs/NH<sub>2</sub>-MIL-125 photoanode system was constructed to explore the application of metal–organic frameworks (MOFs) materials in water splitting and biomedical wastewater treatment. The photocurrent density of the optimal TiO<sub>2</sub>/CQDs/NH<sub>2</sub>-MIL-125 photoanode reaches 1.7 mA/cm<sup>2</sup> at 1.23 V vs. RHE, which is about 1.8 times that of pristine TiO<sub>2</sub>. More importantly, optimized photoanode displays an excellent remove ratio toward tetracycline hydrochloride of 74 % within 60 min. Through mechanism exploration, the excellent performance is attributed to the narrow band gap of NH<sub>2</sub>-MIL-125 widens the light absorption range to the visible region. Additionally, the specific electron conduction behavior of CQDs and the type Ⅱ heterojunction between TiO<sub>2</sub>/NH<sub>2</sub>-MIL-125 inhibited the photogenerated electron-hole recombination. This work explores the application of photoelectrochemical (PEC) materials in environmental catalytic clean production.","PeriodicalId":427,"journal":{"name":"Separation and Purification Technology","volume":"50 1","pages":""},"PeriodicalIF":8.1000,"publicationDate":"2024-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Ultrathin metal–organic framework synergizes with carbon quantum dots improving photoelectrochemical water oxidation and tetracycline hydrochloride degradation performance\",\"authors\":\"Ruyi Wang, Xingzhi Li, Yuxin Kan, Wenjun Fang, Caiyun Chen, Yongyan Chen, Lingling Wang, Yong Jia\",\"doi\":\"10.1016/j.seppur.2024.130589\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Finding clean dual functional materials which can simultaneously alleviate energy and environmental issues is currently a research hotspot. In our work, TiO<sub>2</sub>/CQDs/NH<sub>2</sub>-MIL-125 photoanode system was constructed to explore the application of metal–organic frameworks (MOFs) materials in water splitting and biomedical wastewater treatment. The photocurrent density of the optimal TiO<sub>2</sub>/CQDs/NH<sub>2</sub>-MIL-125 photoanode reaches 1.7 mA/cm<sup>2</sup> at 1.23 V vs. RHE, which is about 1.8 times that of pristine TiO<sub>2</sub>. More importantly, optimized photoanode displays an excellent remove ratio toward tetracycline hydrochloride of 74 % within 60 min. Through mechanism exploration, the excellent performance is attributed to the narrow band gap of NH<sub>2</sub>-MIL-125 widens the light absorption range to the visible region. Additionally, the specific electron conduction behavior of CQDs and the type Ⅱ heterojunction between TiO<sub>2</sub>/NH<sub>2</sub>-MIL-125 inhibited the photogenerated electron-hole recombination. This work explores the application of photoelectrochemical (PEC) materials in environmental catalytic clean production.\",\"PeriodicalId\":427,\"journal\":{\"name\":\"Separation and Purification Technology\",\"volume\":\"50 1\",\"pages\":\"\"},\"PeriodicalIF\":8.1000,\"publicationDate\":\"2024-11-17\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Separation and Purification Technology\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://doi.org/10.1016/j.seppur.2024.130589\",\"RegionNum\":1,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENGINEERING, CHEMICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Separation and Purification Technology","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1016/j.seppur.2024.130589","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
Ultrathin metal–organic framework synergizes with carbon quantum dots improving photoelectrochemical water oxidation and tetracycline hydrochloride degradation performance
Finding clean dual functional materials which can simultaneously alleviate energy and environmental issues is currently a research hotspot. In our work, TiO2/CQDs/NH2-MIL-125 photoanode system was constructed to explore the application of metal–organic frameworks (MOFs) materials in water splitting and biomedical wastewater treatment. The photocurrent density of the optimal TiO2/CQDs/NH2-MIL-125 photoanode reaches 1.7 mA/cm2 at 1.23 V vs. RHE, which is about 1.8 times that of pristine TiO2. More importantly, optimized photoanode displays an excellent remove ratio toward tetracycline hydrochloride of 74 % within 60 min. Through mechanism exploration, the excellent performance is attributed to the narrow band gap of NH2-MIL-125 widens the light absorption range to the visible region. Additionally, the specific electron conduction behavior of CQDs and the type Ⅱ heterojunction between TiO2/NH2-MIL-125 inhibited the photogenerated electron-hole recombination. This work explores the application of photoelectrochemical (PEC) materials in environmental catalytic clean production.
期刊介绍：
Separation and Purification Technology is a premier journal committed to sharing innovative methods for separation and purification in chemical and environmental engineering, encompassing both homogeneous solutions and heterogeneous mixtures. Our scope includes the separation and/or purification of liquids, vapors, and gases, as well as carbon capture and separation techniques. However, it's important to note that methods solely intended for analytical purposes are not within the scope of the journal. Additionally, disciplines such as soil science, polymer science, and metallurgy fall outside the purview of Separation and Purification Technology. Join us in advancing the field of separation and purification methods for sustainable solutions in chemical and environmental engineering.
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