RSC sustainability最新文献_第2页

Life cycle assessment of formic acid synthesis utilizing CO2 from direct air capture† 利用直接空气捕集CO2合成甲酸的生命周期评价

RSC sustainability Pub Date : 2025-04-22 DOI: 10.1039/D5SU00111K

Nicholas Badger, Dylan Mattice, Matthew Atwood and Shahriar Amini

{"title":"Life cycle assessment of formic acid synthesis utilizing CO2 from direct air capture†","authors":"Nicholas Badger, Dylan Mattice, Matthew Atwood and Shahriar Amini","doi":"10.1039/D5SU00111K","DOIUrl":"https://doi.org/10.1039/D5SU00111K","url":null,"abstract":"This study presents a comprehensive cradle-to-gate life cycle assessment (LCA) of formic acid (FA) synthesis from direct air captured (DAC) carbon dioxide (CO2) utilizing chemical plant waste heat. The research focuses on a project to implement a low-temperature solid sorbent DAC system co-located with a FA production facility at a fertilizer plant, utilizing industrial waste heat from nitric acid production. This study employs projected operational data from two companies which own the DAC and FA conversion technologies to examine the environmental impacts and benefits of this DAC-to-FA conversion process. By leveraging waste heat and renewable energy, the proposed project demonstrates the environmental advantages of advanced carbon utilization technologies, providing valuable insights for future policy and industrial applications in sustainable chemical manufacturing. Key results indicate that the capture and conversion process, when powered by renewable energy, achieves a net negative global warming potential of −0.806 kg CO2 eq. per kg FA produced, contrasted against traditional FA production methods which are calculated to emit at best +2.03 kg CO2 eq. The use of waste heat significantly reduces the energy consumption of the process. Compared to traditional FA production methods, the processes also show substantial reductions in ozone depletion, fossil fuel depletion, and other environmental impacts. The novelty of this study lies in its analysis of DAC technology using projected and actual operational data from a DAC development company, which is unique in academic studies. This enhances the accuracy of the LCA and provides a robust foundation for understanding the environmental impacts and benefits of the proposed system. This study also aims to be the first LCA to analyze the life cycle impacts of DAC-to-FA conversion technology.","PeriodicalId":74745,"journal":{"name":"RSC sustainability","volume":" 5","pages":" 2404-2421"},"PeriodicalIF":0.0,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/su/d5su00111k?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143918855","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 durable superwetting textiles coated with polydopamine for oil/water separation 可持续和耐用的超湿纺织品涂有聚多巴胺油/水分离

RSC sustainability Pub Date : 2025-04-21 DOI: 10.1039/D5SU00041F

Abdul Kalam Azad, Nedal Y. Abu-Thabit and Mahmoud H. Abu Elella

{"title":"Sustainable and durable superwetting textiles coated with polydopamine for oil/water separation","authors":"Abdul Kalam Azad, Nedal Y. Abu-Thabit and Mahmoud H. Abu Elella","doi":"10.1039/D5SU00041F","DOIUrl":"https://doi.org/10.1039/D5SU00041F","url":null,"abstract":"The industrial revolution and the frequent crude oil spills have caused tremendous contamination of the natural water resources with oily waste. Superwetting textiles have been proposed as advanced functional materials for selective oil separation from oily wastewater. Superwetting textiles have been fabricated by engineering smart coatings that allow for the modified textile's optimal surface roughness and chemical composition. During the past decade, polydopamine (PDA) has been proposed as a sustainable, biodegradable, and biomimetic coating for the fabrication of superwetting textiles with superhydrophobic and/or underwater superoleophobic properties. PDA coatings offer advantages including a simple coating procedure in a wide pH range, use of various organic/inorganic oxidants, high adhesion strength to various substrates, increased surface roughness of the coated substrates, and diverse post-functionalization via different ionic/covalent interactions. Thus, bioinspired, sustainable and durable superwetting textiles have been designed and fabricated by controlling the surface roughness and the surface energy of the PDA-coated textiles. This review highlights the recent advances in fabricating superwetting PDA-coated textiles for the separation of various oil/water mixtures. Two classes of superwetting textiles are discussed, including superhydrophobic (SHB) and superhydrophilic/underwater superoleophobic (SHL/UWSOB) PDA-coated textiles. In each case, the discussion focuses on the fabrication methods, coating procedures, separation performance, recyclability, and enhanced mechanical and chemical durability due to the synergistic effect of the deposited and/or functionalized PDA coating. The discussion includes the separation of emulsified mixtures, current challenges, proposed solutions, and future perspectives of PDA-coated textiles for practical and large-scale oil/water separations.","PeriodicalId":74745,"journal":{"name":"RSC sustainability","volume":" 6","pages":" 2501-2533"},"PeriodicalIF":0.0,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/su/d5su00041f?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144213697","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

The impact of co-feeding carbon dioxide in Fischer–Tropsch-to-olefin catalysis: an inelastic neutron scattering study 共投二氧化碳对费托催化制烯烃的影响：非弹性中子散射研究

RSC sustainability Pub Date : 2025-04-18 DOI: 10.1039/D5SU00042D

Alisha L. Davidson, Ramandeep S. Dosanjh, Stewart F. Parker and David Lennon

{"title":"The impact of co-feeding carbon dioxide in Fischer–Tropsch-to-olefin catalysis: an inelastic neutron scattering study","authors":"Alisha L. Davidson, Ramandeep S. Dosanjh, Stewart F. Parker and David Lennon","doi":"10.1039/D5SU00042D","DOIUrl":"https://doi.org/10.1039/D5SU00042D","url":null,"abstract":"The addition of CO2 to a syngas feed stream in Fischer–Tropsch to Olefin (FTO) catalysis is investigated by means of inelastic neutron scattering (INS) spectroscopy using ambient pressure CO hydrogenation at 623 K as a test reaction. The principal objective being to explore how the presence of CO2 affects the nature of a hydrocarbonaceous overlayer that forms during the conditioning phase of the catalytic process. The candidate FTO catalyst examined is Fe-based and doubly promoted with sodium (2000 ppm) and sulfur (100 ppm). Temperature-programmed oxidation profiles recorded after 3, 6, 12 and 24 h time-on-stream (T-o-S) reveal progressive carbon retention by the catalyst mainly in the form of amorphous carbon. The INS spectrum as a function of T-o-S confirms the presence of a hydrocarbonaceous overlayer, but with a much higher hydrogen concentration than previously observed for Fe-based FTO catalysts operating solely with a syngas feed. These preliminary results are considered with respect to a possible role for CO2 perturbing the equilibrium between iron carbides and oxides.","PeriodicalId":74745,"journal":{"name":"RSC sustainability","volume":" 5","pages":" 2246-2254"},"PeriodicalIF":0.0,"publicationDate":"2025-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/su/d5su00042d?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143918902","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

Techno-economic assessment of an integrated sewage treatment system for waste-to-ammonia and electricity generation† 废水制氨发电一体化污水处理系统的技术经济评价[j]

RSC sustainability Pub Date : 2025-04-17 DOI: 10.1039/D5SU00019J

Asifa Anwar, Safa Yaser Talal Al Khalil, Mohammad Alherbawi and Yusuf Bicer

{"title":"Techno-economic assessment of an integrated sewage treatment system for waste-to-ammonia and electricity generation†","authors":"Asifa Anwar, Safa Yaser Talal Al Khalil, Mohammad Alherbawi and Yusuf Bicer","doi":"10.1039/D5SU00019J","DOIUrl":"https://doi.org/10.1039/D5SU00019J","url":null,"abstract":"A techno-economic assessment was carried out for a novel system that combines anaerobic digestion, electrodialysis, electrochemical ammonia stripping, vacuum membrane distillation, and a direct ammonia-fed solid oxide fuel cell to generate electricity from sewage treatment. Traditional wastewater treatment systems focus primarily on removing contaminants with limited resource recovery opportunities. The current study presented an innovative wastewater treatment system designed to address the limitations of conventional plants. An assessment was performed to determine the scalability of the proposed system to effectively produce ammonia from municipal wastewater, which can be further used for electricity generation. The levelized costs of ammonia (LCOA) and electricity (LCOE) were determined along with the net present value, payback period, return on investment and benefit-cost ratio. Detailed evaluations of the cost and performance of each processing unit indicated that long-term cost savings can be achieved despite substantial initial capital investment. The proposed system can produce ammonia at 0.11 Mt per year, which can further generate around 254.58 GWh of electricity per year. The findings demonstrated that at a discount rate of 5% and assuming plant life to be 25 years, LCOA and LCOE were estimated at US$ 238.09 per ton of ammonia and US$ 0.16 per kWh of electricity, respectively. A sensitivity analysis was conducted by varying the discount rate (0–20%), which demonstrated that ammonia production was comparatively more financially stable at high discount rates under a certain threshold. The study provided a model for modern wastewater treatment plants aiming for energy neutrality and resource recovery, aligning with global sustainability goals. Future research can explore renewable energy integration with the assessed system to sustain long-term operations.","PeriodicalId":74745,"journal":{"name":"RSC sustainability","volume":" 6","pages":" 2644-2658"},"PeriodicalIF":0.0,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/su/d5su00019j?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144213704","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

On decoating of polymer electrolyte-based solid-state battery cathodes† 聚合物电解质基固态电池阴极的降解研究

RSC sustainability Pub Date : 2025-04-17 DOI: 10.1039/D5SU00082C

Anna Thielen, Thomas Leißner, Tobias Eisenmann and Urs A. Peuker

引用次数: 0

Deactivation mechanisms of Nb2O5 catalyst for esterification of dimethyl adipate: crystal transformation and acid site coking† Nb2O5催化剂在己二酸二甲酯化反应中的失活机理：晶体转变和酸位焦化

RSC sustainability Pub Date : 2025-04-16 DOI: 10.1039/D4SU00731J

Mengyue Li, Yang Li, Bin He, Lijun Han, Ruiyi Yan and Jiayu Xin

{"title":"Deactivation mechanisms of Nb2O5 catalyst for esterification of dimethyl adipate: crystal transformation and acid site coking†","authors":"Mengyue Li, Yang Li, Bin He, Lijun Han, Ruiyi Yan and Jiayu Xin","doi":"10.1039/D4SU00731J","DOIUrl":"https://doi.org/10.1039/D4SU00731J","url":null,"abstract":"The deactivation mechanisms of Nb2O5 catalysts in fixed-bed reactors were systematically investigated, revealing that carbon deposition and structural phase transformations synergistically drive catalyst degradation. During adiponitrile synthesis, carbon deposits evolve progressively from monocyclic to polycyclic aromatic hydrocarbons, leading to blockage of critical acid sites and reduced catalytic activity. Simultaneously, the phase transformation of Nb2O5 to Nb12O29 generates oxygen vacancies, which form unsaturated metal coordination sites and alter the catalyst's acidity profile. Regeneration partially reverses this phase transformation, restoring Nb2O5 content while reducing Nb12O29, thereby improving stability Crucially, maintaining moderate acidity is essential for achieving high nitrile selectivity (>85%) at efficient conversion rates. The study proposes practical strategies to mitigate coke formation and stabilize active sites, including optimized ammonia flow rates and acidic site control. These findings provide a theoretical foundation for enhancing Nb2O5 catalyst stability, reducing energy consumption, and extending operational lifespan in industrial nitrile production processes.","PeriodicalId":74745,"journal":{"name":"RSC sustainability","volume":" 6","pages":" 2619-2631"},"PeriodicalIF":0.0,"publicationDate":"2025-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/su/d4su00731j?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144213702","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

A scientometrics study of advancing sustainable metal recovery from e-waste: processes, challenges, and future directions 从电子废物中推进可持续金属回收的科学计量学研究：过程、挑战和未来方向

RSC sustainability Pub Date : 2025-04-15 DOI: 10.1039/D5SU00049A

Peeyush Phogat, Sushil Kumar and Meher Wan

{"title":"A scientometrics study of advancing sustainable metal recovery from e-waste: processes, challenges, and future directions","authors":"Peeyush Phogat, Sushil Kumar and Meher Wan","doi":"10.1039/D5SU00049A","DOIUrl":"https://doi.org/10.1039/D5SU00049A","url":null,"abstract":"The growing generation of electronic waste (e-waste) presents significant environmental and economic challenges while offering opportunities for resource recovery through the extraction of valuable metals. This study employs bibliometric analysis to examine global research trends in metal recovery from e-waste, identifying China, the United States, and India as the most productive countries, with Journal of Hazardous Materials and Waste Management being the leading publication venues. The analysis also reveals a strong collaboration network among key research institutions, contributing to advancements in recovery techniques. The study further explores various extraction methods, including pyrometallurgical, hydrometallurgical, and biometallurgical processes, assessing their efficiency and sustainability. Hydrometallurgical methods, particularly acid leaching and solvent extraction, show up to 95% metal recovery efficiency, while biometallurgical approaches demonstrate a potential 30–50% reduction in environmental impact compared to conventional chemical methods. The findings highlight the growing emphasis on sustainable recovery strategies, policy interventions, and circular economy principles. The study concludes that continuous technological innovation, strengthened regulatory frameworks, and increased public engagement are essential to advancing metal recovery technologies. By integrating efficient extraction methods with sustainable waste management policies, the global e-waste crisis can be mitigated while ensuring long-term resource conservation.","PeriodicalId":74745,"journal":{"name":"RSC sustainability","volume":" 6","pages":" 2434-2454"},"PeriodicalIF":0.0,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/su/d5su00049a?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144213706","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

Ruthenium-catalyzed dimerization of vanillin for the formation of a biobased epoxy thermoset resin† 钌催化香兰素二聚形成生物基环氧热固性树脂†

RSC sustainability Pub Date : 2025-04-11 DOI: 10.1039/D5SU00165J

Flavia Ferrara, Iuliana Ribca, Namratha Prabhu, Josselin Mante, Maureen Gumbo, Andreas Ekebergh, Mats Johansson and Nina Kann

{"title":"Ruthenium-catalyzed dimerization of vanillin for the formation of a biobased epoxy thermoset resin†","authors":"Flavia Ferrara, Iuliana Ribca, Namratha Prabhu, Josselin Mante, Maureen Gumbo, Andreas Ekebergh, Mats Johansson and Nina Kann","doi":"10.1039/D5SU00165J","DOIUrl":"https://doi.org/10.1039/D5SU00165J","url":null,"abstract":"Vanillin is one of few lignin platform chemicals that are currently available on industrial scale. Seeking to find biobased alternatives to the reprotoxic compound bisphenol A (BPA), we have successfully dimerized three different monomeric vanillin derivatives in a ruthenium-catalyzed Tischenko reaction. The resulting esters were characterized by NMR, FTIR, HRMS, and single crystal X-ray diffraction. The thermal behaviour of one of these derivatives, the epoxy divanillin ester EDVE, was studied further by DSC and TGA. EDVE was subsequently applied towards the preparation of an epoxy thermoset resin via curing with Jeffamine D-400. The thermoset formulation was thermally cured, monitoring the curing with DSC and FTIR. The final thermoset was then characterized with respect to physical and mechanical properties with DSC, TGA, and DMA. This catalytic approach provides a new strategy to access vanillin-based epoxides that could potentially replace bisphenol A.","PeriodicalId":74745,"journal":{"name":"RSC sustainability","volume":" 5","pages":" 2366-2376"},"PeriodicalIF":0.0,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/su/d5su00165j?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143918852","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

Man-made textile fibres from pectin† 由果胶制成的人造纺织纤维

RSC sustainability Pub Date : 2025-04-10 DOI: 10.1039/D5SU00048C

Aleksandra M. Kozlowski, Kristina E. Lindgren, Gino Mangiante and Tobias Köhnke

引用次数: 0

Exploring mineral–organic interactions for eco-friendly concrete alternatives: a radical concept 探索矿物-有机相互作用的环保混凝土替代品：一个激进的概念

RSC sustainability Pub Date : 2025-04-09 DOI: 10.1039/D4SU00696H

Peter Spencer, Hejie Li, Scott Hocknull, Gareth Chalmers and Tianfang Wang

{"title":"Exploring mineral–organic interactions for eco-friendly concrete alternatives: a radical concept","authors":"Peter Spencer, Hejie Li, Scott Hocknull, Gareth Chalmers and Tianfang Wang","doi":"10.1039/D4SU00696H","DOIUrl":"https://doi.org/10.1039/D4SU00696H","url":null,"abstract":"Concrete is central to the civil construction industry worldwide, which is facing increasing governmental, social, and economic pressure to alleviate its considerable environmental impact. This impact centres around Portland cement, the main binder of concrete. The production of a single tonne of Portland cement generates 0.9 tonne of CO2 gas along with other negative environmental impacts. In the quest for alternate construction materials, there is much focus on artificial geopolymers which use aluminosilicate-based binders, the production of which does not liberate large amounts of CO2. However, due to the use of dangerous alkaline chemicals and high curing temperatures, industry is reluctant to implement artificial geopolymers despite their superior material properties. The research into replicating natural geopolymers appears to be in its infancy, possibly due to the underappreciated interaction between organic and mineral fractions. However, mineral–organic interactions are well researched, and the materials produced have considerably favourable properties. This work proposes the application of free radical chemistry to enhance and accelerate mineral–organic interactions to produce analogues of natural rock. The use of free radicals greatly reduces the energy requirements for reactions. They also efficiently degrade organic intermediates and promote mineral polymerisation. The benefits of these rock analogues lie not only in their material properties but also the potential re-use of waste building materials such as iron, aluminium, and glass. Therefore, the environmental impact of these materials will be substantially lower than that of concrete, with superior material properties. The implications of this study is a shift in conventional thinking away from current Portland cement-based construction materials to considering analogues of natural geopolymers.","PeriodicalId":74745,"journal":{"name":"RSC sustainability","volume":" 5","pages":" 2064-2078"},"PeriodicalIF":0.0,"publicationDate":"2025-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/su/d4su00696h?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143918907","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