RSC sustainability最新文献_第5页

A critical review on the sustainability of inverse vulcanised polymers 反相硫化聚合物可持续性研究综述

IF 4.9

RSC sustainability Pub Date : 2025-07-29 DOI: 10.1039/D5SU00387C

Christian W. Schmitt, Liam J. Dodd, Julia K. Walz, Leon Deterding, Patrick Lott, Alexander P. Grimm, Michael P. Shaver, Tom Hasell and Patrick Théato

{"title":"A critical review on the sustainability of inverse vulcanised polymers","authors":"Christian W. Schmitt, Liam J. Dodd, Julia K. Walz, Leon Deterding, Patrick Lott, Alexander P. Grimm, Michael P. Shaver, Tom Hasell and Patrick Théato","doi":"10.1039/D5SU00387C","DOIUrl":"https://doi.org/10.1039/D5SU00387C","url":null,"abstract":"With increasing environmental pollution and climate change there is an urgent need for innovative solutions to tackle these challenges. However, especially since we live in the age of plastics with a linear economy it is important to not only look at their recyclability, biodegradability or that they are made from renewable resources, but also their whole lifecycle from resourcing to end-of-life treatment in order to achieve circularity. Inverse vulcanised polymers are claimed to be a green and more sustainable alternative to a wide range of materials for applications in energy storage, separation systems, construction and agriculture to just name a few. The use of waste material for their synthesis as well as the unique properties of these materials might be a game changer. But the path to large scale industrial production and application is still far as the scale-up comes with its own set of challenges. Herein, we take a closer look at the individual milestones in the lifecycle of inverse vulcanised polymers and how they can fit in as a more sustainable material along the road.","PeriodicalId":74745,"journal":{"name":"RSC sustainability","volume":" 10","pages":" 4190-4227"},"PeriodicalIF":4.9,"publicationDate":"2025-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/su/d5su00387c?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145196050","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}

引用次数: 0

Biocatalytic synthesis of the non-pungent capsaicinoid olvanil from agri-food waste 从农业食品废弃物中生物催化合成无刺激性辣椒素的研究

IF 4.9

RSC sustainability Pub Date : 2025-07-28 DOI: 10.1039/D5SU00241A

Celeste Nobbio, Daniele Fiorito, Eda Kocer, Stefano Magni, Erica Elisa Ferrandi, Daniela Monti, Elisabetta Brenna, Davide Tessaro and Fabio Parmeggiani

{"title":"Biocatalytic synthesis of the non-pungent capsaicinoid olvanil from agri-food waste","authors":"Celeste Nobbio, Daniele Fiorito, Eda Kocer, Stefano Magni, Erica Elisa Ferrandi, Daniela Monti, Elisabetta Brenna, Davide Tessaro and Fabio Parmeggiani","doi":"10.1039/D5SU00241A","DOIUrl":"https://doi.org/10.1039/D5SU00241A","url":null,"abstract":"Capsaicin and simple capsaicinoids have been shown to possess multiple beneficial effects as antibacterials, anticancer agents, antioxidants or against obesity, just to name a few. Olvanil is one of the first synthetic capsaicinoid derivatives designed to activate the same receptor as natural capsaicin, without eliciting its powerful stinging or burning effects. The traditional synthetic approaches to olvanil involve the chemical conversion of vanillin into vanillylamine and a poorly atom-economic chemical amidation with an activated derivative of oleic acid. In this work, a simple biocatalytic two-step procedure has been developed and optimised to produce olvanil, starting from two biomass-derived synthons (oleic acid from vegetable oil soapstock waste and vanillin from lignin). The process employs only biobased reagents and catalysts, under mild conditions and without wasteful purifications, aligning well with the concepts of green chemistry and circular economy.","PeriodicalId":74745,"journal":{"name":"RSC sustainability","volume":" 10","pages":" 4667-4676"},"PeriodicalIF":4.9,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/su/d5su00241a?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145196142","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}

引用次数: 0

Deep mutual learning: incentives and trust through collaborative integration of artificial intelligence into sustainability science 深度相互学习：通过人工智能与可持续发展科学的协作整合来激励和信任

IF 4.9

RSC sustainability Pub Date : 2025-07-25 DOI: 10.1039/D5SU00572H

Johannes Lehmann, Carla Gomes, Matthias C. Rillig and Shashi Shekhar

引用次数: 0

Towards polycotton waste valorisation: depolymerisation of cotton to glucose with polyester preservation† 涤棉废料增值：涤棉解聚成葡萄糖与聚酯保存。

IF 4.9

RSC sustainability Pub Date : 2025-07-24 DOI: 10.1039/D5SU00230C

Nienke Leenders, Gerard P. M. van Klink and Gert-Jan M. Gruter

{"title":"Towards polycotton waste valorisation: depolymerisation of cotton to glucose with polyester preservation†","authors":"Nienke Leenders, Gerard P. M. van Klink and Gert-Jan M. Gruter","doi":"10.1039/D5SU00230C","DOIUrl":"10.1039/D5SU00230C","url":null,"abstract":"Every second, the equivalent of a garbage truck filled with textile waste is discarded. Due to the complex composition of clothing materials, more than 80 wt% of this waste is either incinerated or sent to landfills. Currently, only 15 wt% of textiles are recycled, and of that fraction, approximately 93 wt% undergoes downcycling, resulting in lower-value products. Generally, about 50 wt% of textile waste is composed of polycotton—a blend of cotton, a glucose-based polysaccharide, and polyester, primarily poly(ethylene terephthalate) (PET). Although this combination leverages the advantageous properties of both fibres, full valorisation of these materials is complex due to their blended structure. Simultaneously, there is an urgent need to transition away from fossil-based feedstocks. Cotton-rich textiles present a promising alternative as a non-food-based glucose source for the chemical industry, owing to their high cellulose content and widespread availability. Therefore, this review explores the current state-of-the-art methods for hydrolysing cotton into glucose through acid and/or enzymatic hydrolysis, while preserving the polyester component. These techniques enable the effective separation and subsequent valorisation of both cotton and PET fractions, facilitating their reuse in the production of new materials.","PeriodicalId":74745,"journal":{"name":"RSC sustainability","volume":" 9","pages":" 3863-3882"},"PeriodicalIF":4.9,"publicationDate":"2025-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12287909/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144735973","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}

引用次数: 0

Redox mechanism by lattice sulphur in an Fe-based catalyst for propane dehydrogenation with H2S co-feeding† 铁基催化剂中晶格硫与H2S共进料丙烷脱氢的氧化还原机理

IF 4.9

RSC sustainability Pub Date : 2025-07-23 DOI: 10.1039/D5SU00447K

Ryo Watanabe, Priyanka Verma, Hiroshi Akama and Choji Fukuhara

{"title":"Redox mechanism by lattice sulphur in an Fe-based catalyst for propane dehydrogenation with H2S co-feeding†","authors":"Ryo Watanabe, Priyanka Verma, Hiroshi Akama and Choji Fukuhara","doi":"10.1039/D5SU00447K","DOIUrl":"https://doi.org/10.1039/D5SU00447K","url":null,"abstract":"Iron-based catalysts supported on SiO2 (Fe/SiO2) exhibit unique resistance to sulphur poisoning and sustained activity for propane dehydrogenation (PDH) under hydrogen sulfide (H2S) co-feeding. In this study, noble metals (Pd, Pt, Ru) were incorporated to enhance catalytic performance, among which Ru significantly improved both activity and durability. Transient pulse experiments coupled with mass spectrometry revealed that the PDH reaction proceeds via a regenerable redox mechanism involving lattice sulphur (S2−), where Ru promotes both the release and re-incorporation of S2− species. Spectroscopic analysis using XPS and Ru K-edge EXAFS showed that Ru exists in both metallic and sulphidic forms, and that interfacial electron transfer from Fe to Ru increases the Fe oxidation state. DFT calculations based on a Ru–FeS interface confirmed this electron redistribution and identified balanced activation barriers for key steps such as C–H activation (81.3 kJ mol−1) and S2− regeneration (80.8 kJ mol−1). The synergy between structural characterization and theoretical modelling supports a robust and reversible lattice-sulphur-mediated catalytic cycle. These findings establish Ru–Fe/SiO2 as a promising redox catalyst for selective PDH under H2S-rich conditions, and demonstrate a viable strategy for utilizing sulfur-containing streams in alkane upgrading.","PeriodicalId":74745,"journal":{"name":"RSC sustainability","volume":" 9","pages":" 4087-4097"},"PeriodicalIF":4.9,"publicationDate":"2025-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/su/d5su00447k?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144909558","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}

引用次数: 0

An Fe3O4@keratin nanocomposite doped with copper(ii): a reusable heterogeneous catalyst for the synthesis of novel 1,4-disubstituted 1,2,3-triazole-pyrimido-benzimidazoles in aqueous ethanolic solution under ultrasound cavitation† 一种Fe3O4@keratin掺杂铜纳米复合材料（ii）：超声空化条件下在乙醇水溶液中合成新型1,4-二取代1,2,3-三唑-嘧啶-苯并咪唑的可重复使用异相催化剂

IF 4.9

RSC sustainability Pub Date : 2025-07-22 DOI: 10.1039/D5SU00318K

Chaimae Hourma, Mohamed Belhajja, Mohsine Driowya, Hamza Tachallait, Rachid Benhida and Khalid Bougrin

{"title":"An Fe3O4@keratin nanocomposite doped with copper(ii): a reusable heterogeneous catalyst for the synthesis of novel 1,4-disubstituted 1,2,3-triazole-pyrimido-benzimidazoles in aqueous ethanolic solution under ultrasound cavitation†","authors":"Chaimae Hourma, Mohamed Belhajja, Mohsine Driowya, Hamza Tachallait, Rachid Benhida and Khalid Bougrin","doi":"10.1039/D5SU00318K","DOIUrl":"https://doi.org/10.1039/D5SU00318K","url":null,"abstract":"A novel magnetic nanocatalyst, Fe3O4@keratin-Cu(II), was developed via simple aqueous-phase immobilization of Cu(II) onto a keratin-coated Fe3O4 surface, with keratin extracted from chicken feathers through ultrasonic-assisted alkaline-oxidative hydrolysis. This catalyst enabled a rapid and green sequential two-step, one-pot synthesis of 1,2,3-triazolo-pyrimido-benzimidazole derivatives 5a–x in good to excellent yields (64–90%). The protocol involves microwave-assisted propargylation of benzimidazo[1,2-a]pyrimidinone followed by a CuAAC “click” reaction with azides under ultrasonic cavitation. The Fe3O4@KNPs-Cu(II) nanocatalyst showed very high activity for the click reaction and demonstrated excellent recyclability over five cycles without loss of activity. The structures of the nanocomposite and products 5a–x were fully characterized using FT-IR, XRD, SEM-EDX, ICP-OES, AFM, TEM, HRTEM, TGA, DSC, 1H NMR, 13C NMR, 19F NMR, and HRMS techniques. The use of ultrasound significantly enhanced the reaction rate, offering a clean and efficient synthetic route.","PeriodicalId":74745,"journal":{"name":"RSC sustainability","volume":" 9","pages":" 4137-4161"},"PeriodicalIF":4.9,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/su/d5su00318k?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144909551","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}

引用次数: 0

Lignin-derivable, thermally healable thiol-acrylate vitrimers with improved mechanical performance and reprocessability via transesterification† 木质素衍生的热可修复的巯基丙烯酸酯玻璃聚合物，通过酯交换提高了机械性能和可再加工性

IF 4.9

RSC sustainability Pub Date : 2025-07-21 DOI: 10.1039/D5SU00182J

Yu-Tai Wong, Jignesh S. Mahajan, Stephanie Synnott and LaShanda T. J. Korley

{"title":"Lignin-derivable, thermally healable thiol-acrylate vitrimers with improved mechanical performance and reprocessability via transesterification†","authors":"Yu-Tai Wong, Jignesh S. Mahajan, Stephanie Synnott and LaShanda T. J. Korley","doi":"10.1039/D5SU00182J","DOIUrl":"https://doi.org/10.1039/D5SU00182J","url":null,"abstract":"The development of vitrimers with dynamic covalent bonds enables reprocessability in crosslinked networks, offering a sustainable alternative to conventional thermosets. In this work, a thiol-acrylate vitrimer was synthesized from lignin-derivable (bis)phenols (guaiacol and bisguaiacol F) and compared to a control derived from petroleum-based precursors (phenol and bisphenol F) to investigate the effect of structural differences on network properties and thermal reprocessing. The presence of methoxy groups in the lignin-derivable vitrimer promoted intermolecular interactions by serving as additional hydrogen bonding acceptors during curing, leading to a denser network, as evidenced by a higher rubbery storage modulus (∼2.4 MPa vs. ∼1.4 MPa) and glass transition temperature (∼34 °C vs. ∼28 °C). The lignin-derivable vitrimer exhibited a slightly higher elongation-at-break (∼170% vs. ∼130%) and improved mechanical robustness, including a nearly two-fold increase in Young's modulus (∼6.9 MPa vs. ∼3.4 MPa) and toughness (∼750 kJ m−3vs. ∼390 kJ m−3). The similar stress relaxation behavior and activation energy of viscous flow indicated comparable bond exchange dynamics between the two vitrimers, while the lignin-derivable system demonstrated higher thermal healing efficiency with improved recovery of tensile properties after reprocessing. These findings highlight the potential of lignin-based aromatics in designing mechanically robust and sustainable vitrimers, aligning with efforts to develop renewable and reprocessable polymeric materials.","PeriodicalId":74745,"journal":{"name":"RSC sustainability","volume":" 9","pages":" 4067-4078"},"PeriodicalIF":4.9,"publicationDate":"2025-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/su/d5su00182j?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144909556","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}

引用次数: 0

Sustainable and efficient synthesis of oxazolidinones using a unique deep eutectic solvent (DES) 利用独特的深度共熔溶剂（DES）可持续高效合成恶唑烷酮

IF 4.9

RSC sustainability Pub Date : 2025-07-21 DOI: 10.1039/D5SU00147A

Susmita Mandal, Shiva Lall Sunar, Archana Jain and Tarun K. Panda

引用次数: 0

How deep eutectic solvents are currently shaping organocatalytic and enzymatic asymmetric catalysis 共晶溶剂目前在多大程度上影响了有机催化和酶的不对称催化

IF 4.9

RSC sustainability Pub Date : 2025-07-19 DOI: 10.1039/D5SU00265F

Anthony J. Burke, Elisabete P. Carreiro and Hans-Jürgen Federsel

引用次数: 0

Exploration of solvent, volume, and catalyst effects on fluoride-catalyzed end-of-life depolymerization of silicones to cyclic monomers† 探讨溶剂、体积和催化剂对氟化物催化有机硅寿命终止解聚成环单体的影响

IF 4.9

RSC sustainability Pub Date : 2025-07-18 DOI: 10.1039/D5SU00551E

Andrew C. Deller, Herenia Espitia Armenta, E. A. Kalani D. Edirisinghe, Mitchell E. Deller, Kristan L. Major, Buddhima Rupasinghe and Joseph C. Furgal

{"title":"Exploration of solvent, volume, and catalyst effects on fluoride-catalyzed end-of-life depolymerization of silicones to cyclic monomers†","authors":"Andrew C. Deller, Herenia Espitia Armenta, E. A. Kalani D. Edirisinghe, Mitchell E. Deller, Kristan L. Major, Buddhima Rupasinghe and Joseph C. Furgal","doi":"10.1039/D5SU00551E","DOIUrl":"https://doi.org/10.1039/D5SU00551E","url":null,"abstract":"Recycling end-of-life silicones is of interest due to the high energy cost associated with producing new materials from virgin raw materials. This work explores the chemical recycling of various commercially available silicone rubbers and fluids using catalytic amounts of tetrabutylammonium fluoride (TBAF) in different solvents and solvent volumes. This method allows for the room-temperature depolymerization of each silicone tested to cyclic siloxane oligomers, with the major product being D4 siloxane. Suitable sustainable solvents such as ethyl acetate and cyclopentylmethyl ether were identified for the TBAF-catalyzed depolymerization, and the relationship between the solvent volume used in the reaction and the product distribution was determined and optimized, showing a 1 : 10 polymer mass to solvent volume ratio as ideal. The depolymerization was carried out on a large scale using a consumer product and silicone elastomer, and it was found that the cyclic siloxanes could be isolated via fractional distillation. The fluoride-induced rearrangement of D6 siloxane was used to study the reaction kinetics by 1H NMR array experiments. Alternative fluoride catalyst systems were explored which utilized a combination of a phase transfer catalyst, such as polyethylene glycol, and an alkali fluoride salt. These systems were found to convert silicone rubber to cyclic oligomers with product distributions similar to those observed for the TBAF catalyzed process.","PeriodicalId":74745,"journal":{"name":"RSC sustainability","volume":" 10","pages":" 4776-4784"},"PeriodicalIF":4.9,"publicationDate":"2025-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/su/d5su00551e?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145196136","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}

引用次数: 0