IF 7.5 2区化学

ChemSusChem Pub Date : 2025-02-13 DOI: 10.1002/cssc.202580402

Naoya Sakurada, Kwihwan Kobayashi, Yuka Abe, Kosuke Niwa, Takashi Yokoyama, Tsuyoshi Yamada, Takashi Ikawa, Hironao Sajiki

引用次数: 0

Cover Feature: Enhancing Efficiency and Sustainability: Unleashing the Potential of Continuous Flow in Multicomponent Reactions (ChemSusChem 4/2025)

IF 7.5 2区化学

ChemSusChem Pub Date : 2025-02-13 DOI: 10.1002/cssc.202580403

Marcelo H. R. Carvalho, Pedro P. de Castro, Kleber T. de Oliveira, Giovanni W. Amarante

引用次数: 0

Front Cover: Closed-Loop and Precipitation-Free CO2 Capture Process Enabled by Electrochemical pH Gradient (ChemSusChem 4/2025)

IF 7.5 2区化学

ChemSusChem Pub Date : 2025-02-13 DOI: 10.1002/cssc.202580401

Jiayin Zhou, Xiaofei Guan

引用次数: 0

Cover Feature: Co@NC Chainmail Nanowires for Thermo- and Electrocatalytic Oxidation of 2,5-Bis(hydroxymethyl)furan to 2,5-Furandicarboxylic Acid (ChemSusChem 4/2025)

IF 7.5 2区化学

ChemSusChem Pub Date : 2025-02-13 DOI: 10.1002/cssc.202580404

Bin Zhu, Qiuge Wang, Jinggang Wang, Xiao Yu, Jian Zhang, Chunlin Chen

引用次数: 0

Grape Stalks Valorization towards Circular Economy: A Cascade Biorefinery Strategy.

IF 7.5 2区化学

ChemSusChem Pub Date : 2025-02-09 DOI: 10.1002/cssc.202402536

Carlotta Valle, Giorgio Grillo, Emanuela Calcio Gaudino, Paola Ponsetto, Roberto Mazzoli, Giulia Bonavita, Pietro Vitale, Enrica Pessione, Emilia Garcia-Moruno, Antonella Costantini, Giancarlo Cravotto, Silvia Tabasso

{"title":"Grape Stalks Valorization towards Circular Economy: A Cascade Biorefinery Strategy.","authors":"Carlotta Valle, Giorgio Grillo, Emanuela Calcio Gaudino, Paola Ponsetto, Roberto Mazzoli, Giulia Bonavita, Pietro Vitale, Enrica Pessione, Emilia Garcia-Moruno, Antonella Costantini, Giancarlo Cravotto, Silvia Tabasso","doi":"10.1002/cssc.202402536","DOIUrl":"10.1002/cssc.202402536","url":null,"abstract":"Lignocellulosic biomasses have the potential to generate by-products with biological activity (i. e., polyphenols) as well as biopolymers (i. e., cellulose, hemicellulose, pectins, lignin). The wine industry is one of the pillars of Italian agri-food sector. Nevertheless, large quantities of by-products such as grape stems are produced, which are usually disposed of at a cost, and therefore represent an attractive negative-cost feedstock for biorefinery. In this work, a sequential protocol for biomass valorization is proposed, characterized by a multidisciplinary strategy using enabling technologies and subcritical water as a green solvent, where physical/chemical treatments synergistically interact with biological treatments. The first phase involved the sequential fractionation of grape stalks, obtaining several product streams rich in polyphenols, hemicellulose, pectin (13.15 % of cumulative yield on biomass), lignin and cellulose. A membrane treatment was employed to recycle materials within the process. Finally, the cellulose-rich residue was exploited as a fermentation substrate for the last step, producing up to 5.8 g/L of lactic acid by harnessing suitably engineered Clostridium thermocellum strains. The polyphenolic fraction successfully inhibited the growth of Brettanomyces bruxellensis and Acetobacter pasteurianus, microorganisms responsible for major wine off-flavors. Globally, this study represents a proof-of-concept of a second-generation biorefining process based on locally available waste biomass.","PeriodicalId":149,"journal":{"name":"ChemSusChem","volume":" ","pages":"e202402536"},"PeriodicalIF":7.5,"publicationDate":"2025-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143381335","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Plasmon Hot Carriers: Cognizing, Utilizing, and Regulating.

IF 7.5 2区化学

ChemSusChem Pub Date : 2025-02-09 DOI: 10.1002/cssc.202402436

Wenkai Liang, Dong Li, Yawen Wang, Bo Zhao, Chang Liu, Yinghui Sun, Lin Jiang

引用次数: 0

Access to Highly Functional and Polymerizable Carbonate-Drug Conjugates.

IF 7.5 2区化学

ChemSusChem Pub Date : 2025-02-07 DOI: 10.1002/cssc.202500031

Wangyu Shi, Thirusangumurugan Senthamarai, Matteo Lanzi, Paolo Orlando, Rodrigo Nogúes Martín, Arjan Willem Kleij

引用次数: 0

Exploring the Potential of H-zeolites as Heterogeneous Catalysts for the Chemical Recycling of Polysaccharides and their Flexible Films.

IF 7.5 2区化学

ChemSusChem Pub Date : 2025-02-07 DOI: 10.1002/cssc.202402413

Rafaella Ferreira Fernandes, Naba K Kalita, Anna Liguori, Ernesto A Urquieta Gonzalez, Minna Hakkarainen, Paulo José A Sobral, Caio Gomide Otoni

{"title":"Exploring the Potential of H-zeolites as Heterogeneous Catalysts for the Chemical Recycling of Polysaccharides and their Flexible Films.","authors":"Rafaella Ferreira Fernandes, Naba K Kalita, Anna Liguori, Ernesto A Urquieta Gonzalez, Minna Hakkarainen, Paulo José A Sobral, Caio Gomide Otoni","doi":"10.1002/cssc.202402413","DOIUrl":"https://doi.org/10.1002/cssc.202402413","url":null,"abstract":"Zeolites are a group of crystalline aluminosilicates with exchangeable cations and molecular-dimensioned micropores, which have successfully been applied to transform biomass and waste into biofuels. Herein, the effectiveness of acidic H-zeolites in biomass transformation and chemical valorization is demonstrated. In this process, the Brønsted/Lewis acid sites in zeolites catalyze the transition of carbohydrates into valuable chemicals. β-glucan polymer extracted from the lichen Usnea was catalytically converted into value-added molecules, such as glucose monomers. Particular challenges to elucidate the zeolite-catalyzed β-glucan conversion to glucose were addressed, namely: (i) water as the solvent, ii) hydrolysis of the biopolymer in an ionic liquid of 1-Butyl-3-vinylimidazolium bromide ([BVinIm]Br), and iii) reaction time of 30, 60, 120, and 240 min. Effective hydrolysis of β-glucan was achieved by H-zeolites (H-Beta, H-Mordenite, and H-ZSM-5), and the formed glucose was quantified through the dinitrosalicylic acid (DNS) method. Finally, applying H-zeolites as heterogeneous catalysts to prove the chemical recyclability of flexible films based on β-glucan was demonstrated as a step forward in integrating biopolymer-based materials into the circular economy.","PeriodicalId":149,"journal":{"name":"ChemSusChem","volume":" ","pages":"e202402413"},"PeriodicalIF":7.5,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143363356","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Scope and Limitations of the Use of Methanesulfonic Acid (MSA) as a Green Acid for Global Deprotection in Solid-Phase Peptide Synthesis.

IF 7.5 2区化学

ChemSusChem Pub Date : 2025-02-06 DOI: 10.1002/cssc.202402752

Giovanni Vivenzio, Sikabwe Noki, Amit Chakraborty, John Lopez, Beatriz G de la Torre, Fernando Albericio

引用次数: 0

The Roles of Hydroxyl Radicals and Superoxide in Oxidizing Aqueous Benzyl Alcohol under Ultrasound Irradiation.

IF 7.5 2区化学

ChemSusChem Pub Date : 2025-02-06 DOI: 10.1002/cssc.202500097

Ari F Fischer, Teseer Bahry, Zhangyue Xie, Roberto Batista da Silva Junior, Kaicheng Qian, Renhong Li, James Kwan, François Jerome, Sabine Valange, Wen Liu, Prince N Amaniampong, Tej S Choksi

{"title":"The Roles of Hydroxyl Radicals and Superoxide in Oxidizing Aqueous Benzyl Alcohol under Ultrasound Irradiation.","authors":"Ari F Fischer, Teseer Bahry, Zhangyue Xie, Roberto Batista da Silva Junior, Kaicheng Qian, Renhong Li, James Kwan, François Jerome, Sabine Valange, Wen Liu, Prince N Amaniampong, Tej S Choksi","doi":"10.1002/cssc.202500097","DOIUrl":"https://doi.org/10.1002/cssc.202500097","url":null,"abstract":"The abatement of aromatic pollutants in water requires their oxidation to nontoxic products by resource-intensive reactions with hydroxyl radicals (•OH). We elucidate the mechanisms of •OH-induced aromatic ring degradation by combining kinetic measurements, electron paramagnetic resonance spectroscopy, density functional theory calculations, and kinetic modelling. We demonstrate that benzyl alcohol, a model aromatic compound, is oxidized by •OH radicals, generated by ultrasonic irradiation in an O2-rich environment, into aromatic compounds (benzaldehyde and phenol derivatives) and C1-C2 oxygenates (formic acid, glyoxal, and oxalic acid). Through pathways akin to atmospheric chemistry, these •OH radicals de-aromatize and fragment benzyl alcohol, producing 5-hydroxy-4-oxo-pentenal and other dicarbonyl products. Unique to the aqueous phase, however, superoxide (•O2-) forms by •OOH deprotonation, which is generated by ultrasound (alongside •OH) and as a byproduct of •OH-benzyl alcohol reactions. •O2- acts as a nucleophile, oxidizing 5-hydroxy-4-oxo-pentenal into oxalic acid and C1 oxygenates via aldehyde and ketone intermediates. This process regenerates •O2- and does not consume •OH, thereby further degrading ring fragmentation products while preserving •OH to activate the refractory aromatic ring of benzyl alcohol. These nucleophilic •O2-reactions can therefore reduce the energy and number of chemical initiators needed to degrade aromatic compounds, thus advancing •OH-based oxidation processes in water treatment.","PeriodicalId":149,"journal":{"name":"ChemSusChem","volume":" ","pages":"e202500097"},"PeriodicalIF":7.5,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143254132","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

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