RSC sustainability最新文献

{"title":"Stockholm Declaration on Chemistry for the Future","authors":"Tom Welton, David J. Cole-Hamilton, Francesca Kerton, Haichao Liu, Zhimin Liu, Vincent O. Nyamori, Cristina Pozo-Gonzalo, Martin H. G. Prechtl, Zhenyu Sun and Mike Sutton","doi":"10.1039/D5SU90041G","DOIUrl":"https://doi.org/10.1039/D5SU90041G","url":null,"abstract":"<p >A graphical abstract is available for this content</p>","PeriodicalId":74745,"journal":{"name":"RSC sustainability","volume":" 10","pages":" 4187-4189"},"PeriodicalIF":4.9,"publicationDate":"2025-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/su/d5su90041g?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145196049","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}

{"title":"Influence of the biomass-source and the extraction process on lignin properties and γ-valerolactone induced conversion of biomass towards valuable lignin monomers","authors":"Moritz Schweiger, Thomas Lang, Didier Touraud, Eva Müller and Werner Kunz","doi":"10.1039/D5SU00324E","DOIUrl":"https://doi.org/10.1039/D5SU00324E","url":null,"abstract":"<p >With a rising demand in fossil-based chemicals and their derived products, alternatives have to be developed from bio-based materials to meet the declining fossil resources. Lignocellulosic biomass is widely seen as a promising alternative, especially on the topic of bioplastics. However, challenges still lie in complete and efficient valorization of biomass and converting its components into suitable products. For this purpose, the tailoring of the lignin structure through extraction method and choice of biomass have to be studied extensively. The green solvent γ-valerolactone (GVL) was shown to facilitate efficient fractionation of all main components of lignocellulosic biomass in our previous study. To further build on this process of a GVL-based extraction process at mild conditions, lignin from different process conditions and biomass types was extracted, and subsequent hydrogenolysis experiments were conducted to decompose especially lignin oligomers with high ether contents into specific monomers. The structure of the products, referring to lignin oligomers and monomers, largely depends on the biomass type of origin of the lignin and the extraction process. The product characteristics from several biomass sources were analyzed using NMR spectroscopy, UV/Vis spectroscopy, and chromatography techniques. Default extracted lignin and lignin extracted with an aldehyde-assisted process led to a broad spectrum of lignin with different properties, indicating the influence of the extraction process on the extracted lignin properties. The present study examines the production of lignin oligomers and monomers with different properties from lignocellulosic biomass after two different selective extraction and decomposition processes using the green solvent GVL. These products can be used for different applications depending on their post-extraction properties that originate from its biomass source and the extraction/degradation process.</p>","PeriodicalId":74745,"journal":{"name":"RSC sustainability","volume":" 10","pages":" 4514-4532"},"PeriodicalIF":4.9,"publicationDate":"2025-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/su/d5su00324e?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145196111","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}

{"title":"Complete biodiverse lignocellulosic biomass fractionation process using the green solvent γ-valerolactone","authors":"Moritz Schweiger, Thomas Lang, Eva Müller, Vojtěch Jeřábek, Jan Heyda, Martin Klajmon, Didier Touraud, Magdalena Bendová, Karel Řehák and Werner Kunz","doi":"10.1039/D5SU00600G","DOIUrl":"https://doi.org/10.1039/D5SU00600G","url":null,"abstract":"<p >Biomass pretreatment processes using organic solvents have historically been investigated for the separation of lignin from lignocellulosic biomass. This research explores how the pretreatment process can be expanded to fractionate all biomass components from various feedstock and waste streams and transform them into valuable bio-based molecules using green solvent mixtures and mild conditions. Using experimental and computational investigation techniques, this study further expands on the use of the green solvent γ-valerolactone (GVL) in biomass fractionation processes. Combining both results, a complete biodiverse process for the fractionation of all biopolymers in lignocellulosic biomass was achieved. This process yields lignin in native quality, very high purity and very high yield after a single extraction cycle at very mild conditions. Additionally, lignin-free cellulose in very high purity and yield, and hemicellulose degradation products in very high yield and purity, mainly xylose and glucose, can be separated during the process. These properties are essential for efficient valorization of the biopolymer products. The fractionation process proved to be similarly efficient in every step for different biomasses and waste-stream biomasses. GVL could be recovered and reused in every separation step and even be prepared from hemicellulose products, enabling a sustainable biomass dissolution cycle. This cycle stands as a basis for producing valuable biopolymer molecules, from biodiverse origin, that can be further converted into quality products for the chemical industry.</p>","PeriodicalId":74745,"journal":{"name":"RSC sustainability","volume":" 10","pages":" 4533-4555"},"PeriodicalIF":4.9,"publicationDate":"2025-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/su/d5su00600g?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145196112","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}

{"title":"Effects of chemical composition and physicochemical properties of poplar biomass on the performance of 3D printed poplar-reinforced PLA materials","authors":"Anqi Ji, Samarthya Bhagia, Nara Han, Kwang Ho Kim, Gyu Leem, Nidia C. Gallego, Shuyang Zhang, Kai Li, Soydan Ozcan, Arthur J. Ragauskas and Chang Geun Yoo","doi":"10.1039/D5SU00327J","DOIUrl":"https://doi.org/10.1039/D5SU00327J","url":null,"abstract":"<p >Lignocellulosic biomass has been well-acknowledged as a filler for making 3D printed composites. The technical performances of composites were influenced by the characteristics of the components. The correlations between poplar biomass properties and the mechanical and thermal performances of the 3D printed poplar-plastic composites were investigated. The characteristics of poplar were modified by different pretreatment methods, including using hot water, dilute acid, and organic solvent (organosolv), and each treated poplar biomass was applied as a filler in a polylactic acid (PLA) polymer matrix to produce eco-friendly materials. These solvent pretreatments increased the hydrophobicity and surface area of poplar. Organosolv treated poplar showed the highest cellulose content and significantly increased Young's modulus of its biocomposites. Principal component analysis revealed that the specific surface area and water contact angle of biomass contributed to the thermal stability of biocomposites. Additionally, the degree of polymerization of cellulose and xylan content within the biomass correlated with the biocomposites' break stress. Notably, the crystallinity of biocomposites impacted the modulus of these materials. The reported relationships between biomass characteristics and 3D printed composite behaviors provide guidance for optimizing biomass processing in biocomposite applications.</p>","PeriodicalId":74745,"journal":{"name":"RSC sustainability","volume":" 10","pages":" 4478-4491"},"PeriodicalIF":4.9,"publicationDate":"2025-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/su/d5su00327j?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145196108","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}

{"title":"Metrics are the key: development of criteria and indicators for measuring sustainability in international chemicals management","authors":"C. Blum, B. Zeschmar-Lahl, E. Heidbüchel, H. C. Stolzenberg, K. Kümmerer, A. Becker and H. Friege","doi":"10.1039/D5SU00135H","DOIUrl":"https://doi.org/10.1039/D5SU00135H","url":null,"abstract":"<p >Materials and products provided by the chemical industry and related sectors are indispensable for a satisfactory living standard and high standard of health. On the other hand, emissions from resource extraction, production, unsustainable use, and inadequate disposal of chemicals and related products contribute significantly to the pollution of the planet. To address the aforementioned issues on a global level, the “Global Framework on Chemicals” was launched in 2023. It presents a comprehensive plan with 28 targets jointly addressing the lifecycle of chemicals. In addition to efforts to ensure the sound management of chemicals and waste, the targets are partially oriented towards the concept of sustainable chemistry due to its search for innovative and sustainable solutions across the complete value chain of chemicals. To enable and monitor the implementation of this framework, indicators are needed to show progress towards the targets. This paper presents indicators that are based on an internationally established understanding of sustainable chemistry. To consider the target relevance of each indicator as well as its suitability, criteria were developed to assess the viability of the proposed indicators. The criteria as well as the suggested indicators were discussed with international experts and in stakeholder workshops that involved all six UN regions. The evaluation of these meetings ultimately led to a set of 23 indicators based on the previously defined criteria. It is demonstrated that these indicators can be used to measure the progress towards the targets of the Global Framework on Chemicals.</p>","PeriodicalId":74745,"journal":{"name":"RSC sustainability","volume":" 10","pages":" 4724-4745"},"PeriodicalIF":4.9,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/su/d5su00135h?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145196133","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}

{"title":"Visible-light-induced photocatalytic oxidation of C–H bonds with O2 employing simple porphyrins as photocatalysts under solvent-free conditions","authors":"Yan-Bo Ding, Yi-Lin Chu, Qiu-Ping Liu, Hong-Ke Wu, Hai-Min Shen and Yuan-Bin She","doi":"10.1039/D5SU00471C","DOIUrl":"https://doi.org/10.1039/D5SU00471C","url":null,"abstract":"<p >To insert oxygen atoms into C–H bonds through efficient and green process with lower energy consumption and lower carbon emission, porphyrins and metalloporphyrins as model compounds of chlorophyll were utilized as photocatalysts and applied to the oxidation of C–H bonds with O<small>₂</small> under irradiation of visible light at room temperature and solvent-free conditions. The generation efficiency of oxygen-containing products reached up to the millimolar level (mmol (g<small>_cat.</small><small>⁻¹</small> h<small>⁻¹</small>)) with excellent substrate tolerance. In cyclohexane oxidation as the model reaction, substrate conversion reached up to 3.18 mmol (g<small>_cat.</small><small>⁻¹</small> h<small>⁻¹</small>) with a selectivity of 99.9% towards cyclohexyl hydroperoxide, utilizing optimized tetrakis(4-carboxyphenyl)porphyrin (T(4-COOH)PP) as the photocatalyst. Based on characterization studies of UV-vis absorption spectroscopy, photoluminescence emission spectroscopy, time-resolved photoluminescence spectroscopy, transient photocurrent spectroscopy and electrochemical impedance spectroscopy, the source of excellent catalytic performance of T(4-COOH)PP was investigated, and it was ascribed to its higher performance in visible-light absorption, charge separation, production of photo-generated electrons, and lower impedance during charge migration under irradiation of visible light. The reactive species and reaction mechanism in this work were investigated in detail as well. The production efficiency of oxidation products at the millimolar level (mmol (g<small>_cat.</small><small>⁻¹</small> h<small>⁻¹</small>)) was higher than most of the reports in current literature. Thus, the oxidation method developed in this work was an efficient, sustainable and low-energy consumption strategy for oxidative functionalization of C–H bonds and would be a valuable reference for the development of an efficient, sustainable, low-energy consumption and low-carbon emission chemical process.</p>","PeriodicalId":74745,"journal":{"name":"RSC sustainability","volume":" 10","pages":" 4759-4775"},"PeriodicalIF":4.9,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/su/d5su00471c?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145196135","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}

{"title":"Oxidative depolymerization of lignosulfonates to low-molecular weight aromatics: an interlaboratory study","authors":"Mynta Norberg, Selda Bekirovska, Jana Klein, Finn Moeller, Karl P. J. Gustafson, Margareta Sandahl, Christian P. Hulteberg, Charlotta Turner, Omar Y. Abdelaziz, Siegfried R. Waldvogel, Peter Spégel and Oskar Bengtsson","doi":"10.1039/D5SU00698H","DOIUrl":"https://doi.org/10.1039/D5SU00698H","url":null,"abstract":"<p >In the pursuit of sustainable chemical production, feedstock diversification is essential. Lignosulfonates, a water-soluble aromatic byproduct of the sulfite pulping process, offer a green alternative for producing value-added compounds such as vanillin <em>via</em> oxidative depolymerization. However, current depolymerization processes are not comparable due to inconsistencies in feedstocks and a lack of validated analytical methods. In the present study, we developed and validated a novel sample preparation and GC/FID method for quantifying vanillin, vanillic acid, and acetovanillone. Three oxidation processes—continuous alkaline (CA), heterogeneous metal-catalysed (HMC), and electrochemical nickel anode (ENA)—were optimized and compared using the same feedstock. A round-robin test ensured analytical comparability across different labs. The analytical method demonstrated high precision (&lt;5% intra-lab, &lt;10% inter-day, and &lt;25% inter-lab RSD) for all compounds. The HMC oxidation process yielded the highest total monomer concentration (4.3 g L<small>⁻¹</small>) and monomer yield (8.7 wt%), while CA oxidation achieved the highest volumetric productivity (up to 840 g (L × h)<small>⁻¹</small>). Future work should explore hybrid approaches leveraging the strengths of these oxidative lignin depolymerisation processes.</p>","PeriodicalId":74745,"journal":{"name":"RSC sustainability","volume":" 10","pages":" 4818-4824"},"PeriodicalIF":4.9,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/su/d5su00698h?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145196052","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}

{"title":"Advancements in sustainable materials for environmentally responsible tyre production: a comprehensive review","authors":"Malathi Sampath, Niketha Konikkara, Samson David, Ramakrishnan S., Jyoti Prakash Rath and Amarnath S. K. P.","doi":"10.1039/D5SU00177C","DOIUrl":"https://doi.org/10.1039/D5SU00177C","url":null,"abstract":"<p >The tyre industry is at crossroads, grappling with the dual challenges of waste tyre disposal and the environmental impacts of production. In an era where sustainability is paramount, manufacturers are intensifying efforts to minimize raw material consumption, maximize renewable resource utilization, and innovate tyre recycling. This review critically examines these initiatives, revealing a promising shift towards sustainable practices. Key findings include the industry's adoption of bio-based polymers, fabrics, processing aids, and renewable fillers, which offer greener alternatives to traditional materials. Integrating recycled rubber, bio-based oils, and silica from agricultural waste highlights a significant move towards a circular economy. Advanced technologies such as AI, life cycle assessment, triboelectric tyres, and 3D printing are revolutionizing tyre design and production, further reducing environmental footprints. Despite these advancements, significant knowledge gaps remain concerning the long-term performance and sustainability of these materials. Research into self-healing rubber, vitrimers, and advanced recycling techniques underscores the industry's commitment to environmental stewardship. Nevertheless, the full impact of these innovations on environmental lifecycles remains unclear. This review emphasizes the critical need for further research to bridge these gaps, ensuring that the tyre industry can meet future demands sustainably.</p>","PeriodicalId":74745,"journal":{"name":"RSC sustainability","volume":" 10","pages":" 4336-4363"},"PeriodicalIF":4.9,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/su/d5su00177c?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145196059","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}

{"title":"Improving microbial electrosynthesis with biochar electrodes in production of CO2 derived biochemicals and biofuels within circular economy systems","authors":"Xue Ning, Deepa Sachan, Archishman Bose, David M. Wall and Jerry D. Murphy","doi":"10.1039/D5SU00140D","DOIUrl":"https://doi.org/10.1039/D5SU00140D","url":null,"abstract":"<p >The urgent need to mitigate greenhouse gas emissions and transition to a circular economy has driven the exploration of bioelectrochemical technologies including microbial electrosynthesis (MES). MES offers a promising pathway for CO<small>₂</small> conversion into valuable biochemicals and biofuels; however, its scalability is limited by challenges such as high cathode costs, inefficient electron transfer, and poor microbial attachment. Biochar, derived from waste biomass, presents a sustainable and cost-effective alternative to conventional carbon-based electrodes due to its high porosity, tunable surface chemistry, and low associated production costs. However, the optimisation of biochar properties for MES applications, including its electrochemical performance and stability, has not been definitively analysed. This paper summarises the recent advancements in biochar electrodes for MES, focusing on material characteristics, modification strategies, and their impact on overall system efficiency. Furthermore, the potential of integrating MES with existing biogas facilities to enhance carbon recovery, and reduce resource consumption is discussed. Overcoming current challenges in consistent biochar electrode production, and its integration with existing infrastructure is essential for advancing MES technology in real world applications. The findings suggest that waste-derived biochar electrodes have the potential to improve MES scalability and economic viability, supporting the development of sustainable biochemicals within circular economy systems.</p>","PeriodicalId":74745,"journal":{"name":"RSC sustainability","volume":" 10","pages":" 4435-4450"},"PeriodicalIF":4.9,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/su/d5su00140d?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145196104","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}

{"title":"Development of a bio-synthesized zinc oxide nanoparticle sensor for the quantification of totarolone in Tetraclinis articulata","authors":"Omar anor, Sofia Kerouad, Issam Forsal, Wissal Kotmani, Mustapha Bouzaid and Latifa Bouissane","doi":"10.1039/D5SU00477B","DOIUrl":"https://doi.org/10.1039/D5SU00477B","url":null,"abstract":"<p >Diterpenoids such as totarolone exhibit significant bioactivity, making their accurate quantification in plant extracts essential for pharmacological studies and quality control. Conventional analytical methods are often time-consuming, costly, or environmentally demanding, highlighting the need for rapid, sensitive, and eco-friendly alternatives. In this work, we report the electrochemical quantification of totarolone, a bioactive diterpenoid, in <em>Tetraclinis articulata</em> extract using a carbon paste electrode modified with green-synthesized zinc oxide (bio-ZnO) nanoparticles. Bio-ZnO was prepared <em>via</em> a plant-mediated route using <em>Calamintha nepeta</em> extract, providing a sustainable and eco-friendly alternative to conventional chemical synthesis. XRD analysis revealed that the bio-ZnO nanoparticles possess a hexagonal wurtzite structure with an average crystallite size of ∼10 nm. The modified electrode exhibited enhanced sensitivity and stability, enabling the effective detection of totarolone by cyclic voltammetry (CV) and square wave voltammetry (SWV). A linear analytical response was obtained, with a LOD of 1.19 μM, a LOQ of 3.98 μM and a measured concentration of 0.133 mM in the plant extract. These findings highlight the potential of green nanomaterial-based electrochemical sensors for the reliable and sustainable analysis of bioactive compounds.</p>","PeriodicalId":74745,"journal":{"name":"RSC sustainability","volume":" 10","pages":" 4825-4833"},"PeriodicalIF":4.9,"publicationDate":"2025-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/su/d5su00477b?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145196053","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}