Green Chemical Engineering最新文献_第4页

Near-infrared long-lifetime emission via triplet-to-singlet Förster resonance energy transfer 通过三重子到星子的佛斯特共振能量转移实现近红外长寿命发射

IF 9.1

Green Chemical Engineering Pub Date : 2024-03-22 DOI: 10.1016/j.gce.2024.03.004

Ruihong Liu , Dongzhi Liu , Xiang Ma

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Outside Back Cover 封底外侧

Green Chemical Engineering Pub Date : 2024-03-15 DOI: 10.1016/S2666-9528(24)00014-1

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Green Chemical Engineering Pub Date : 2024-03-15 DOI: 10.1016/S2666-9528(24)00006-2

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Boosting visible-light-driven hydrogen evolution through Pt site anchored 2D/2D heterostructure catalyst: Cd-TCPP(Pt)@CdS 通过锚定 Pt 位点的 2D/2D 异质结构催化剂促进可见光驱动的氢气进化：Cd-TCPP(Pt)@CdS

IF 9.1

Green Chemical Engineering Pub Date : 2024-03-15 DOI: 10.1016/j.gce.2024.03.002

Guo-Wei Guan, Yi-Tao Li, Li-Ping Zhang, Su-Tao Zheng, Si-Chao Liu, Hao-Ling Lan, Qing-Yuan Yang

{"title":"Boosting visible-light-driven hydrogen evolution through Pt site anchored 2D/2D heterostructure catalyst: Cd-TCPP(Pt)@CdS","authors":"Guo-Wei Guan, Yi-Tao Li, Li-Ping Zhang, Su-Tao Zheng, Si-Chao Liu, Hao-Ling Lan, Qing-Yuan Yang","doi":"10.1016/j.gce.2024.03.002","DOIUrl":"10.1016/j.gce.2024.03.002","url":null,"abstract":"<div><div>Solar-powered water splitting is an up-and-coming method for hydrogen production. Still, it faces several challenges, including improving light responsiveness, maximizing utilization of photocatalyst active sites, and effectively utilizing photo-induced carriers to prevent low hydrogen production. In this research, we propose an approach for designing a 2D/2D heterostructure catalyst, the Cd-TCPP(Pt)@CdS, which consists of 2D CdS nanosheets (NSs) and a 2D metal-organic framework (MOF) with Pt active sites (Cd-TCPP(Pt)), aiming to achieve highly efficient visible-light-driven hydrogen evolution. Firstly, CdS NSs exhibit excellent responsiveness to visible light, ensuring robust generation of photo-induced carriers. Secondly, the 2D MOF provides abundant Pt active sites, enhancing electron utilization and reducing the energy barrier for proton reduction. Compared to pure CdS NSs (which demonstrate a hydrogen production activity of 1220 μmol/g/h), the newly designed 2D/2D composite catalyst Cd-TCPP(Pt)@CdS exhibits an activity of 13,434 μmol/g/h, representing an 11-fold increase. Impressively, Cd-TCPP(Pt)@CdS maintains a high activity of 3062 μmol/g/h even under sunlight. Density functional theory (DFT) calculations were employed to investigate the principle of proton reduction. The suitable bandgap of CdS and energy gap of 2D Cd-TCPP(Pt) contribute to their strong interaction and consequently higher efficiency in hydrogen evolution. The Pt-single atom (Pt-SA) also provides sites with low free energy for proton reduction, contributing to improved activity. The photocatalytic performance of Cd-TCPP(Pt)@CdS NSs composites demonstrates a synergistic effect between the 2D inorganic semiconductor and the 2D MOF containing the Pt-site, resulting in enhanced utilization of photo-induced carriers and atoms.</div></div>","PeriodicalId":66474,"journal":{"name":"Green Chemical Engineering","volume":"6 1","pages":"Pages 68-75"},"PeriodicalIF":9.1,"publicationDate":"2024-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140278325","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Flexible photosensors based on photothermal conversion 基于光热转换的柔性光传感器

IF 9.1

Green Chemical Engineering Pub Date : 2024-03-15 DOI: 10.1016/j.gce.2024.03.001

Beihang Xu, Yao An, Jinghao Zhu, Yonglin He

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CdTe QDs@SiO2 composite material for efficient photocatalytic degradation of tetracycline composites 用于高效光催化降解四环素复合材料的 CdTe QDs@SiO2 复合材料

IF 9.1

Green Chemical Engineering Pub Date : 2024-02-02 DOI: 10.1016/j.gce.2024.01.004

{"title":"CdTe QDs@SiO2 composite material for efficient photocatalytic degradation of tetracycline composites","authors":"","doi":"10.1016/j.gce.2024.01.004","DOIUrl":"10.1016/j.gce.2024.01.004","url":null,"abstract":"<div><p>In the contemporary context, tetracycline is widely utilized as a prevalent antibiotic in various facets of life. However, the excessive use of antibiotics has caused visible environmental consequences. Henceforth, the scientific community has increasingly focused on developing catalysts that exhibit exceptional efficacy in the proficient degradation of tetracycline. In this study, a novel nanomaterial was developed to encapsulate CdTe quantum dots (QDs) with a SiO<sub>2</sub> shell. The distinct synthesis approach generated a composite material that showed heterogeneity and considerably increased the contact area with contaminants. Consequently, the transfer of photoelectron to the SiO<sub>2</sub> spheres was significantly improved, leading to a more efficient separation during the catalytic process. The study investigated how different factors, such as the loading of the catalyst, the initial concentration of tetracycline, pH levels, and the wight ratio of CdTe QDs (SiO<sub>2</sub> + CdTe QDs) affected the effectiveness of photocatalytic tetracycline degradation. The findings indicated that the optimal degradation efficiency was observed at a catalyst concentration of 0.25 g/L and a solution pH of 9, leading to an impressive degradation rate of 96% within a mere 2 h timeframe.</p></div>","PeriodicalId":66474,"journal":{"name":"Green Chemical Engineering","volume":"5 4","pages":"Pages 533-542"},"PeriodicalIF":9.1,"publicationDate":"2024-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666952824000049/pdfft?md5=982092b460fe833e27ca719fa42b006e&pid=1-s2.0-S2666952824000049-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139821346","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Machine learning aided investigation on the structure-performance correlation of MOF for membrane-based He/H2 separation 机器学习辅助研究用于膜式氢/氢分离的 MOF 的结构-性能相关性

IF 9.1

Green Chemical Engineering Pub Date : 2024-02-01 DOI: 10.1016/j.gce.2024.01.005

{"title":"Machine learning aided investigation on the structure-performance correlation of MOF for membrane-based He/H2 separation","authors":"","doi":"10.1016/j.gce.2024.01.005","DOIUrl":"10.1016/j.gce.2024.01.005","url":null,"abstract":"<div><p>The separation of He/H<sub>2</sub> using membrane technology has gained significant interest in the field of He extraction from natural gas. One of the greatest challenges associated with this process is the extremely close kinetic diameters of the two gas molecules, resulting in low membrane selectivity. In this study, we investigated the structure-performance relationship of metal-organic framework (MOF) membranes for He/H<sub>2</sub> separation through molecular simulations and machine learning approaches. By conducting molecular simulations, we identified the potential MOF membranes with high separation performance from the Computation-Ready Experimental (CoRE) MOF database, and the diffusion-dominated mechanism was further elucidated. Moreover, random forest (RF)-based machine learning models were established to identify the crucial factors influencing the He/H<sub>2</sub> separation performance of MOF membranes. The pore limiting diameter (PLD) and void fraction (<em>φ</em>), are revealed as the most important physical features for determining the membrane selectivity and He permeability, respectively. Additionally, density functional theory (DFT) calculations were carried out to validate the molecular simulation results and suggested that the electronegative atoms on the pore surfaces can enhance the diffusion-based separation of He/H<sub>2</sub>, which is critical for improving the membrane selectivities of He/H<sub>2</sub>. This study offers useful insights for designing and developing novel MOF membranes for the separation of He/H<sub>2</sub> at the molecular level.</p></div>","PeriodicalId":66474,"journal":{"name":"Green Chemical Engineering","volume":"5 4","pages":"Pages 526-532"},"PeriodicalIF":9.1,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666952824000050/pdfft?md5=620637f23e34ac1e1573e48118c6ef78&pid=1-s2.0-S2666952824000050-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139892709","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Outside Back Cover 封底外侧

Green Chemical Engineering Pub Date : 2024-01-22 DOI: 10.1016/S2666-9528(23)00068-7

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OFC: Outside Front Cover OFC：封面外侧

Green Chemical Engineering Pub Date : 2024-01-22 DOI: 10.1016/S2666-9528(23)00061-4

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Propylene epoxidation coupled with furfural oxidation over Pt (II)TPP porphyrin with molecular oxygen 卟啉铂(II)与分子氧的丙烯环氧化反应及糠醛氧化反应

IF 9.1

Green Chemical Engineering Pub Date : 2024-01-18 DOI: 10.1016/j.gce.2024.01.003

引用次数: 0