{"title":"涂覆在 Ti3C2MXene 上的半胱氨酸铜对过一硫酸活化降解卡马西平的催化活性","authors":"Pascaline Sanga, Haitham Saad Al-mashriqi, Jing Xiao, Jia Chen, Hongdeng Qiu","doi":"10.1039/d4en00342j","DOIUrl":null,"url":null,"abstract":"The growing prevalence of pharmaceutical pollutants in water bodies poses a significant threat to the enviromnent, underscoring the urgent need for more effective and sustainable methods for removing these pollutants. This study introduces a novel technique for degrading carbamazepine (CBZ), based on a peroxymonosulfate (PMS) oxidation system catalysed by a Copper-cysteine/Ti3C2MXene composite (Cu-cy/Ti3C2MXene), denoted as CCM. CCM was initially prepared by growing Cu-cy nanoparticles on MXene sheet to make Cu-cy/Ti3C2MXene. CCM was then utilized to activate PMS, facilitating the generation of reactive oxygen species necessary for decomposing CBZ. The CCM+PMS system demonstrated a remarkable 98.6% degradation rate of CBZ within 20 min, outperforming the pristine Cu-cy nanoparticles and Ti3C2MXene when applied in same conditions. Furthermore, to examine the vital contribution of reactive oxygen species in the degradation process, experiments focused on quenching reactions and electron paramagnetic resonance (EPR) analysis demonstrated that both radical species, including sulfate radicals (SO4•-) and hydroxyl radicals (•OH), and non-radical species such as singlet oxygen (1O2), were involved in the degradation of CBZ with non-radical species (1O2) exerting a predominant role. Notably, the synthesized material showed excellent reusability and stability in multiple cycles of CBZ degradation. These findings highlight the effectiveness of the CCM+PMS system in addressing water pollution issues caused by CBZ.","PeriodicalId":73,"journal":{"name":"Environmental Science: Nano","volume":null,"pages":null},"PeriodicalIF":5.8000,"publicationDate":"2024-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Catalytic activity of Cu-cysteine coated on Ti3C2MXene toward peroxymonosulfate activation for carbamazepine degradation\",\"authors\":\"Pascaline Sanga, Haitham Saad Al-mashriqi, Jing Xiao, Jia Chen, Hongdeng Qiu\",\"doi\":\"10.1039/d4en00342j\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The growing prevalence of pharmaceutical pollutants in water bodies poses a significant threat to the enviromnent, underscoring the urgent need for more effective and sustainable methods for removing these pollutants. This study introduces a novel technique for degrading carbamazepine (CBZ), based on a peroxymonosulfate (PMS) oxidation system catalysed by a Copper-cysteine/Ti3C2MXene composite (Cu-cy/Ti3C2MXene), denoted as CCM. CCM was initially prepared by growing Cu-cy nanoparticles on MXene sheet to make Cu-cy/Ti3C2MXene. CCM was then utilized to activate PMS, facilitating the generation of reactive oxygen species necessary for decomposing CBZ. The CCM+PMS system demonstrated a remarkable 98.6% degradation rate of CBZ within 20 min, outperforming the pristine Cu-cy nanoparticles and Ti3C2MXene when applied in same conditions. Furthermore, to examine the vital contribution of reactive oxygen species in the degradation process, experiments focused on quenching reactions and electron paramagnetic resonance (EPR) analysis demonstrated that both radical species, including sulfate radicals (SO4•-) and hydroxyl radicals (•OH), and non-radical species such as singlet oxygen (1O2), were involved in the degradation of CBZ with non-radical species (1O2) exerting a predominant role. Notably, the synthesized material showed excellent reusability and stability in multiple cycles of CBZ degradation. These findings highlight the effectiveness of the CCM+PMS system in addressing water pollution issues caused by CBZ.\",\"PeriodicalId\":73,\"journal\":{\"name\":\"Environmental Science: Nano\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":5.8000,\"publicationDate\":\"2024-07-10\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Environmental Science: Nano\",\"FirstCategoryId\":\"6\",\"ListUrlMain\":\"https://doi.org/10.1039/d4en00342j\",\"RegionNum\":2,\"RegionCategory\":\"环境科学与生态学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Environmental Science: Nano","FirstCategoryId":"6","ListUrlMain":"https://doi.org/10.1039/d4en00342j","RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
Catalytic activity of Cu-cysteine coated on Ti3C2MXene toward peroxymonosulfate activation for carbamazepine degradation
The growing prevalence of pharmaceutical pollutants in water bodies poses a significant threat to the enviromnent, underscoring the urgent need for more effective and sustainable methods for removing these pollutants. This study introduces a novel technique for degrading carbamazepine (CBZ), based on a peroxymonosulfate (PMS) oxidation system catalysed by a Copper-cysteine/Ti3C2MXene composite (Cu-cy/Ti3C2MXene), denoted as CCM. CCM was initially prepared by growing Cu-cy nanoparticles on MXene sheet to make Cu-cy/Ti3C2MXene. CCM was then utilized to activate PMS, facilitating the generation of reactive oxygen species necessary for decomposing CBZ. The CCM+PMS system demonstrated a remarkable 98.6% degradation rate of CBZ within 20 min, outperforming the pristine Cu-cy nanoparticles and Ti3C2MXene when applied in same conditions. Furthermore, to examine the vital contribution of reactive oxygen species in the degradation process, experiments focused on quenching reactions and electron paramagnetic resonance (EPR) analysis demonstrated that both radical species, including sulfate radicals (SO4•-) and hydroxyl radicals (•OH), and non-radical species such as singlet oxygen (1O2), were involved in the degradation of CBZ with non-radical species (1O2) exerting a predominant role. Notably, the synthesized material showed excellent reusability and stability in multiple cycles of CBZ degradation. These findings highlight the effectiveness of the CCM+PMS system in addressing water pollution issues caused by CBZ.
期刊介绍:
Environmental Science: Nano serves as a comprehensive and high-impact peer-reviewed source of information on the design and demonstration of engineered nanomaterials for environment-based applications. It also covers the interactions between engineered, natural, and incidental nanomaterials with biological and environmental systems. This scope includes, but is not limited to, the following topic areas:
Novel nanomaterial-based applications for water, air, soil, food, and energy sustainability
Nanomaterial interactions with biological systems and nanotoxicology
Environmental fate, reactivity, and transformations of nanoscale materials
Nanoscale processes in the environment
Sustainable nanotechnology including rational nanomaterial design, life cycle assessment, risk/benefit analysis