Green Chemistry最新文献

{"title":"Correction: Fluorescent carbon dots from birch leaves for sustainable electroluminescent devices","authors":"Shi Tang, Yongfeng Liu, Henry Opoku, Märta Gregorsson, Peijuan Zhang, Etienne Auroux, Dongfeng Dang, Anja-Verena Mudring, Thomas Wågberg, Ludvig Edman and Jia Wang","doi":"10.1039/D4GC90134G","DOIUrl":"https://doi.org/10.1039/D4GC90134G","url":null,"abstract":"<p >Correction for ‘Fluorescent carbon dots from birch leaves for sustainable electroluminescent devices’ by Shi Tang <em>et al.</em>, <em>Green Chem.</em>, 2023, <strong>25</strong>, 9884–9895, https://doi.org/10.1039/D3GC03827K.</p>","PeriodicalId":78,"journal":{"name":"Green Chemistry","volume":" 10","pages":" 2776-2777"},"PeriodicalIF":9.3,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/gc/d4gc90134g?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143535651","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Optimizing oxygen functional groups on porous carbon monoliths by green activation promotes seawater hydrogen evolution†","authors":"Bei Li, Shiyang Fei, Zhenlu Liu, Changshui Wang, Zhiqiang Sun, Chunmei Zhang, Haoqi Yang, Hongliang Zhao, Qian Zhang and Shuijian He","doi":"10.1039/D5GC00029G","DOIUrl":"https://doi.org/10.1039/D5GC00029G","url":null,"abstract":"<p >Oxygen-doped carbon materials are promising candidates for the electrocatalytic hydrogen evolution reaction (HER). However, optimizing and delineating the roles of specific oxygen-containing functional groups in modulating their catalytic activity remains challenging. Herein, a green and environmentally friendly method involving hydrogen peroxide (H<small>₂</small>O<small>₂</small>) hydrothermal activation of carbonized wood (CW) is employed to regulate and examine oxygen-containing functional groups. Experimental results show that oxygen-doped carbon with a higher proportion of C<img>O species exhibits enhanced electrocatalytic activity in KOH and alkaline seawater. Theoretical calculations further revealed that the C<img>O functional group regulated the electronic structure of defective carbon and improved the electrocatalytic activity of the HER by promoting the dissociation of water. This study presents a green method for modulating oxygen-containing functional groups and offers theoretical insights into their roles, paving the way for designing more efficient oxygen-doped, metal-free carbon-based electrocatalysts for HER.</p>","PeriodicalId":78,"journal":{"name":"Green Chemistry","volume":" 11","pages":" 3099-3107"},"PeriodicalIF":9.3,"publicationDate":"2025-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143580960","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mo2C-derived molybdenum oxycarbides afford controllable oxidation of anilines to azobenzenes and azoxybenzenes†","authors":"Zhe Wang, Yimei Chen, Zhouyang Long, Yunfei Wang, Mingming Fan, Pingbo Zhang and Yan Leng","doi":"10.1039/D4GC06281G","DOIUrl":"https://doi.org/10.1039/D4GC06281G","url":null,"abstract":"<p >The catalytic synthesis of aromatic azo compounds <em>via</em> oxidative coupling of anilines still faces great challenges due to the difficulty in controlling product selectivity. In this study, we have pioneered the application of Mo<small>₂</small>C as a pre-catalyst for the selective oxidation of aniline using H<small>₂</small>O<small>₂</small> to produce azobenzenes and azoxybenzenes. Both experimental and theoretical studies reveal that H<small>₂</small>O<small>₂</small> induces the formation of Mo oxycarbides (MoC<small>_<em>x</em></small>O<small>_<em>y</em></small>) on the surface of Mo<small>₂</small>C during the reaction, which subsequently activates H<small>₂</small>O<small>₂</small> to generate active sites (Mo⋯O) essential for the oxidative coupling of anilines. Furthermore, the kinetics of the critical conversion from Ph-NH<small>₂</small> to Ph-NHOH over MoC<small>_<em>x</em></small>O<small>_<em>y</em></small> can be adjusted by modulating the solvent, thereby enabling controlled product selectivity between azobenzenes and azoxybenzenes. This work elucidates the structural evolution of Mo<small>₂</small>C to MoC<small>_<em>x</em></small>O<small>_<em>y</em></small> in a H<small>₂</small>O<small>₂</small> system and its catalytic oxidation capabilities, potentially paving the way for broader applications of MoC<small>_<em>x</em></small>O<small>_<em>y</em></small> in various oxidation reactions.</p>","PeriodicalId":78,"journal":{"name":"Green Chemistry","volume":" 11","pages":" 3091-3098"},"PeriodicalIF":9.3,"publicationDate":"2025-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143580962","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"De novo biosynthesis of 4,6-dihydroxycoumarin in Escherichia coli†","authors":"Qi Gan, Tian Jiang, Chenyi Li, Xinyu Gong, Jianli Zhang, Bhaven K. Desai and Yajun Yan","doi":"10.1039/D4GC05694A","DOIUrl":"10.1039/D4GC05694A","url":null,"abstract":"<p >Coumarins and their derivatives possess crucial biochemical and pharmaceutical properties. However, the exploration of the coumarin biosynthesis pathways remains limited, restricting their microbial biosynthesis, especially for hydroxycoumarins. In this work, we designed and verified novel artificial pathways to produce a valuable compound 4,6-dihydroxycoumarin (4,6-DHC) in <em>Escherichia coli</em>. Based on the retrosynthesis analysis, multiple routes were designed and verified by extending the shikimate pathway, screening the potential enzymes, and characterizing the enzymes involved. Rare codon optimization and protein engineering strategies were applied to optimize the rate-limiting steps. <em>De novo</em> biosynthesis of 4,6-DHC was achieved using the cheap carbon source glycerol, and the titer can reach 18.3 ± 0.7 mg L<small>⁻¹</small>. Ultimately, inducible regulation of critical pathway genes with a tetracycline-inducible controller yielded a significant boost in 4,6-DHC production, achieving a titer of 56.7 ± 2.1 mg L<small>⁻¹</small>. This research successfully created a microbial platform for 4,6-dihydroxycoumarin production and demonstrated a generalizable strategy for synthesizing valuable compounds.</p>","PeriodicalId":78,"journal":{"name":"Green Chemistry","volume":" 11","pages":" 3064-3076"},"PeriodicalIF":9.3,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11848710/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143514238","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Toward industrial C8 production: oxygen intrusion drives renewable n-caprylate production from ethanol and acetate via intermediate metabolite production†","authors":"Kurt Gemeinhardt, Byoung Seung Jeon, Jean Nepomuscene Ntihuga, Han Wang, Caroline Schlaiß, Timo N. Lucas, Irina Bessarab, Nicolas Nalpas, Nanqing Zhou, Joseph G. Usack, Daniel H. Huson, Rohan B. H. Williams, Boris Maček, Ludmilla Aristilde and Largus T. Angenent","doi":"10.1039/D5GC00411J","DOIUrl":"https://doi.org/10.1039/D5GC00411J","url":null,"abstract":"<p >Previous bioreactor studies achieved high volumetric <em>n</em>-caprylate (<em>i.e.</em>, <em>n</em>-octanoate) production rates and selectivities from ethanol and acetate with chain-elongating microbiomes. However, the metabolic pathways from the substrates to <em>n</em>-caprylate synthesis were unclear. We operated two <em>n</em>-caprylate-producing upflow bioreactors with a synthetic medium to study the underlying metabolic pathways. The operating period exceeded 2.5 years, with a peak volumetric <em>n</em>-caprylate production rate of 190 ± 8.4 mmol C L<small>⁻¹</small> d<small>⁻¹</small> (0.14 g L<small>⁻¹</small> h<small>⁻¹</small>). We identified oxygen availability as a critical performance parameter, facilitating intermediate metabolite production from ethanol. Bottle experiments in the presence and absence of oxygen with <small>¹³</small>C-labeled ethanol suggest acetyl-coenzyme A-based derived production of <em>n</em>-butyrate (<em>i.e.</em>, <em>n</em>-butanoate), <em>n</em>-caproate (<em>i.e.</em>, <em>n</em>-hexanoate), and <em>n</em>-caprylate. Here, we postulate a trophic hierarchy within the bioreactor microbiomes based on metagenomics, metaproteomics, and metabolomics data, as well as experiments with a <em>Clostridium kluyveri</em> isolate. First, the aerobic bacterium <em>Pseudoclavibacter caeni</em> and the facultative anaerobic fungus <em>Cyberlindnera jadinii</em> converted part of the ethanol pool into the intermediate metabolites succinate, lactate, and pyroglutamate. Second, the strict anaerobic <em>C. kluyveri</em> elongated acetate with the residual ethanol to <em>n</em>-butyrate. Third, <em>Caproicibacter fermentans</em> and <em>Oscillibacter valericigenes</em> elongated <em>n</em>-butyrate with the intermediate metabolites to <em>n</em>-caproate and then to <em>n</em>-caprylate. Among the carbon chain-elongating pathways of carboxylates, the tricarboxylic acid cycle and the reverse β-oxidation pathways showed a positive correlation with <em>n</em>-caprylate production. The results of this study inspire the realization of a chain-elongating production platform with separately controlled aerobic and anaerobic stages to produce <em>n</em>-caprylate renewably as an attractive chemical from ethanol and acetate as substrates.</p>","PeriodicalId":78,"journal":{"name":"Green Chemistry","volume":" 11","pages":" 2931-2949"},"PeriodicalIF":9.3,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/gc/d5gc00411j?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143580963","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Performance evaluation of green and conventional solvents in reversed-phase liquid chromatography based on the separation of non-polar and polar substances","authors":"Oktawia Kalisz, Gabriela Hulicka, Marek Tobiszewski and Szymon Bocian","doi":"10.1039/D4GC05737F","DOIUrl":"https://doi.org/10.1039/D4GC05737F","url":null,"abstract":"<p >This study investigated the potential for replacing conventional solvents such as acetonitrile (ACN) and methanol (MeOH) with greener alternatives – ethanol (EtOH) and dimethyl carbonate (DMC) – in chromatographic separations. The aim was to assess whether these environmentally friendly solvents could achieve comparable separation performance while reducing the environmental impact of the analyses. Chromatographic separations were carried out on two different mixtures: non-polar and polar, using three stationary phases with different surface properties (C18, diphenyl and perfluorinated phenyl). The Technique for Order of Preference by Similarity to Ideal Solution algorithm (TOPSIS) was used to select the optimal conditions for ultra-high performance liquid chromatography (UHPLC) separations, integrating multiple criteria, including chromatographic run time, tailing ratios, resolution and solvent-related environmental hazards. The results show that EtOH and DMC can effectively replace traditional solvents without compromising separation performance, confirming that sustainable analytical methods for mixtures of non-polar and polar compounds are achievable with green solvents.</p>","PeriodicalId":78,"journal":{"name":"Green Chemistry","volume":" 11","pages":" 3020-3031"},"PeriodicalIF":9.3,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143580959","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Unlocking branched cutin via sudden supercritical water hydrolysis of tomato peel†","authors":"Vesna Leontijevic, Danilo Cantero, Suset Barroso Solares, Antonio Heredia Bayona and María José Cocero Alonso","doi":"10.1039/D5GC00375J","DOIUrl":"https://doi.org/10.1039/D5GC00375J","url":null,"abstract":"<p >This study presents a novel approach to unlock and enrich branched cutin from tomato peel waste using sudden supercritical water hydrolysis. Cutin, the structural polyester of the plant cuticle, offers exceptional properties for biomaterials developments, however, conventional extraction methods often degrade its intricate three-dimensional network, limiting its potential applications. Utilizing sudden supercritical water hydrolysis (SCWH) with a reaction time of approximately one second, non-cutin components are hydrolyzed while preserving and enriching the native cutin structure. Characterization of the cutin-rich solid revealed the absence of a detectable glass transition temperature or melting point, indicating the maintenance of its native polymeric architecture phenomena typically observed when cutin is isolated as a mixture of monomers. Furthermore, mechanical testing revealed high rigidity under more stringent conditions, with a measured Young's modulus of 0.7 GPa. This rapid and efficient process not only valorizes agricultural and industrial residues but also enables the development of sustainable, bio-based materials. The successful preservation and enrichment of native cutin open new avenues for its application in advanced biomaterials, offering a promising alternative to fossil fuel-derived polymers.</p>","PeriodicalId":78,"journal":{"name":"Green Chemistry","volume":" 11","pages":" 2950-2967"},"PeriodicalIF":9.3,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/gc/d5gc00375j?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143580969","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Correction: Efficient separation of oil–phenol mixtures and removal of neutral oil entrainment via an in situ deep eutectic method","authors":"Wanxiang Zhang, Yangchangqing Zhao, Bingru Wang, Zhigang Lei, Shuhang Ren, Yucui Hou and Weize Wu","doi":"10.1039/D5GC90031J","DOIUrl":"https://doi.org/10.1039/D5GC90031J","url":null,"abstract":"<p >Correction for ‘Efficient separation of oil–phenol mixtures and removal of neutral oil entrainment <em>via</em> an <em>in situ</em> deep eutectic method’ by Wanxiang Zhang <em>et al.</em>, <em>Green Chem.</em>, 2025, <strong>27</strong>, 1145–1156, https://doi.org/10.1039/D4GC05756B.</p>","PeriodicalId":78,"journal":{"name":"Green Chemistry","volume":" 9","pages":" 2593-2593"},"PeriodicalIF":9.3,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/gc/d5gc90031j?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143475073","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Correction: Sustainable pathway to furanics from biomass via heterogeneous organo-catalysis†","authors":"Sanny Verma, R. B. Nasir Baig, Mallikarjuna N. Nadagouda, Christophe Len and Rajender S. Varma","doi":"10.1039/D5GC90026C","DOIUrl":"https://doi.org/10.1039/D5GC90026C","url":null,"abstract":"<p >Correction for ‘Sustainable pathway to furanics from biomass <em>via</em> heterogeneous organo-catalysis’ by Sanny Verma <em>et al.</em>, <em>Green Chem.</em>, 2017, <strong>19</strong>, 164–168, https://doi.org/10.1039/C6GC02551J.</p>","PeriodicalId":78,"journal":{"name":"Green Chemistry","volume":" 9","pages":" 2592-2592"},"PeriodicalIF":9.3,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/gc/d5gc90026c?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143475072","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Solid-phase synthesis of titanium-oxo clusters and their unprecedented catalytic performance in oxidative desulfurization of fuel oil†","authors":"Xinchun Liu, Yanpeng Yuan, Jiawei Fu, Yuqing Kong, Yinyong Sun, Xiaolin Li and Nan Qu","doi":"10.1039/D4GC05728G","DOIUrl":"https://doi.org/10.1039/D4GC05728G","url":null,"abstract":"<p >Titanium-oxo clusters (TOCs) have attracted much attention due to their diversity of structure and composition in recent years. Currently, such materials are synthesized by the solvothermal method. In this work, we report that a series of TOCs involving Ti<small>₂₉</small>KO<small>₃₉</small>(OEt)<small>₃₈</small>, Ti<small>₆</small>O<small>₆</small>(4-tbbz)<small>₆</small>(O<small>ⁱ</small>Pr)<small>₆</small>, Ti<small>₆</small>O<small>₆</small>(abz)<small>₆</small>(O<small>ⁱ</small>Pr)<small>₆</small> and Ti<small>₆</small>O<small>₆</small>(4-tbbz)<small>₁₀</small>(O<small>ⁱ</small>Pr)<small>₂</small> have successfully been prepared by the solid-phase method. The structure of obtained materials was solved by the single-crystal X-ray diffraction technique. Furthermore, the performance of these TOCs was evaluated by the oxidative desulfurization (ODS) reactions of a model fuel oil. It was found that Ti<small>₆</small>O<small>₆</small>(4-tbbz)<small>₁₀</small>(O<small>ⁱ</small>Pr)<small>₂</small> exhibited unprecedented catalytic activity with a turnover frequency (TOF) of 729 h<small>⁻¹</small> and mass activity of 1919 mmol h<small>⁻¹</small> g<small>⁻¹</small>. The results from the experiments and theoretical calculations reveal that the Ti-hydroperoxo five-membered ring intermediates formed by the combination of binuclear titanium sites in Ti<small>₆</small>O<small>₆</small>(4-tbbz)<small>₁₀</small>(O<small>ⁱ</small>Pr)<small>₂</small> clusters with H<small>₂</small>O<small>₂</small> play a key role in the oxidation of sulfur compounds. In addition, it is demonstrated that such TOCs can be utilized as precursors for the synthesis of Ti-MOFs.</p>","PeriodicalId":78,"journal":{"name":"Green Chemistry","volume":" 11","pages":" 2995-3003"},"PeriodicalIF":9.3,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143580908","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}