Materials Today Sustainability最新文献

{"title":"A comprehensive review on electroactive MOF-reinforced nanocomposites: From material design to practical applications","authors":"Pouya Khattami Kermanshahi ,&nbsp;Sara Estaji ,&nbsp;Erfan Zivari ,&nbsp;Shahab Moghari ,&nbsp;Pouria Aslani Poshtahani ,&nbsp;Sadaf Moftakhari ,&nbsp;Hosein Ali Khonakdar","doi":"10.1016/j.mtsust.2025.101229","DOIUrl":"10.1016/j.mtsust.2025.101229","url":null,"abstract":"<div><div>Metal-organic frameworks (MOFs), with their special properties like high porosity and adjustable structures, have emerged as versatile reinforcements for nanocomposites. These hybrid systems have gained enormous attention for their potential to achieve electrical conductivity, either through the intrinsic properties of MOFs or via the incorporation of conductive nanomaterials within the MOF framework. This review explores recent advancements in nanocomposite systems reinforced with MOFs, focusing on two primary categories: systems where conductivity stems from the MOFs themselves and those enhanced by doping with additional nanomaterials. Various organic and inorganic additives, including polymer core-shells, C₃N₄, electroactive polymers, graphene, carbon (nanosheets and nanotubes), zeolites, metals, MOF-reinforced metal oxides, semimetals, and MXenes, are analyzed for their roles in enhancing the conductive, chemical, and structural characteristics of these nanocomposites. The potential of these systems to enable the development of lightweight, cost-effective, and chemically and electrically resilient materials with broad applications is also discussed. This review highlights the prospects and obstacles in advancing MOF-reinforced nanocomposites for next-generation electrically conductive materials.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":"32 ","pages":"Article 101229"},"PeriodicalIF":7.9,"publicationDate":"2025-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145155587","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cyrene as a biobased solvent for the green delamination recycling of carbon fiber-reinforced polymer laminates","authors":"Mingfei Xing,&nbsp;Wanting Xu,&nbsp;Lili Dong,&nbsp;Shuofei Fu,&nbsp;Fayang Guo,&nbsp;Li Zhao","doi":"10.1016/j.mtsust.2025.101225","DOIUrl":"10.1016/j.mtsust.2025.101225","url":null,"abstract":"<div><div>The brittle and rigid nature of the resin matrix makes it difficult to cut carbon fiber-reinforced polymer (CFRP) laminates into thin slices and reprocess them into strongly oriented strand boards. To address this limitation, Cyrene, which is a biodegradable, non-toxicity biobased solvent, was employed to recycle CFRP laminates by inducing resin swelling. At 160–220 °C under atmospheric pressure, Cyrene fully swelled and softened the epoxy matrix within 30–240 min. The resin swelling rate ranged from 53.40 % to 303.39 %, with corresponding mass loss rates of 0–12.59 %. The resulting volume expansion led to delamination of the laminate into pliable monolayer carbon fiber (CF) sheets. These sheets were subsequently cut, dried, cross-stacked, and hot-pressed into new CFRP plates. The re-prepared laminates exhibited flexural, tensile, and interlaminar shear strengths ranging from 72.3 % to 77.5 %, 74.6 %–87.0 %, and 84.6 %–88.3 % of the original CFRP laminates. This mild process retained the CF length and mechanical performance while transferring waste resin into the new product. Cyrene, being thermally stable, was recovered by decompression distillation. This study offers a green and full-component recycling strategy for CFRP waste, supporting sustainable development through resource conservation and reuse.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":"32 ","pages":"Article 101225"},"PeriodicalIF":7.9,"publicationDate":"2025-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145119382","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Optimising hybrid Fibre and nanocellulose reinforced engineered cementitious composites using Taguchi-TOPSIS analysis","authors":"H. Withana ,&nbsp;S. Rawat ,&nbsp;Y.X. Zhang","doi":"10.1016/j.mtsust.2025.101224","DOIUrl":"10.1016/j.mtsust.2025.101224","url":null,"abstract":"<div><div>A structured approach to optimising the constituents of engineered cementitious composites (ECC) is crucial for reducing resource intensity and improving design efficiency. This study presents the design of a novel sustainable ECC that simultaneously achieves high strength and ductility, incorporating hybrid fibres, nanocellulose (NC), and high volumes of fly ash and silica fume. A novel approach utilising the hybrid application of Taguchi- Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS) methods is adopted for the design, enabling systematic and precise adjustment of mix constituents and leading to optimized performance. The standard Taguchi orthogonal array, consisting of four factors, i.e. fly ash to silica fume ratio, water-to-binder ratio, fibre proportions, and nanocellulose dosage, was used to design the mix. The optimum combination of these constituents was determined to maximize five key response parameters: compressive strength, elastic modulus, flexural strength, tensile strength, and ultimate tensile strain. Results indicated that fly ash to silica fume ratio of 1:0.2, a water to binder ratio of 0.22, 1.5 % polyethylene +0.75 % steel fibre by volume, and 0.25 % NC by weight represent the optimal mix design. This mix achieved a compressive strength of 71 MPa, an elastic modulus of 30 GPa, a flexural strength of 17 MPa, an ultimate tensile strength of 4 MPa, and an ultimate tensile strain of 3 %. The optimal design was further validated by experimental results, which showed that the optimized mix outperformed all other mixes in all indices. This further demonstrates the effectiveness of the design method and the potential for successfully incorporating nanocellulose in ECC designs.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":"32 ","pages":"Article 101224"},"PeriodicalIF":7.9,"publicationDate":"2025-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145155585","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Amorphous electrocatalysts for oxygen and hydrogen evolution reactions: Advances in hydrogen production","authors":"Selvam Mathi ,&nbsp;Hanan Akhdar ,&nbsp;Ranjan S. Shetti ,&nbsp;Tarfah Alinad ,&nbsp;Abdullah N. Alodhayb ,&nbsp;Kunal Mondal ,&nbsp;Nagaraj P. Shetti","doi":"10.1016/j.mtsust.2025.101223","DOIUrl":"10.1016/j.mtsust.2025.101223","url":null,"abstract":"<div><div>The electrochemical splitting of water into oxygen and hydrogen is fundamental for renewable energy storage and conversion. The development of cost-effective and highly efficient electrocatalysts remains essential for industrial-scale implementation of this technology. Recent advances have highlighted the superior activity, stability and structural adaptability of amorphous electrocatalysts compared to their crystalline counterparts. This review critically examines synthesis strategies, characterisation techniques, and the electrochemical performance of amorphous materials for both oxygen evolution (OER) and hydrogen evolution (HER) reactions. Key factors influencing catalytic efficiency, including electronic structure and surface chemistry, are discussed in detail and contextualised with established literature. The review also highlights the critical role of enthalpic contributions in governing reaction energetics and catalyst performance, which aids in understanding and optimising electrocatalytic efficiency. Notably, ongoing research continues to reveal that amorphous catalysts consistently deliver improved performance in water-splitting applications, highlighting their growing relevance in electrocatalysis. The rationale for employing amorphous catalysts in water splitting is articulated, emphasising their unique advantages. By integrating recent findings and outlining future research directions, this review underscores the pivotal role of amorphous materials in advancing sustainable hydrogen production and identifies promising avenues for catalyst innovation.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":"32 ","pages":"Article 101223"},"PeriodicalIF":7.9,"publicationDate":"2025-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145106894","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Thermal enhancement of phase change materials using nanoparticles and novel finned structures","authors":"Hassan Waqas ,&nbsp;Meraj Ali Khan ,&nbsp;Mohib Hussain ,&nbsp;Zunhua Zhang","doi":"10.1016/j.mtsust.2025.101222","DOIUrl":"10.1016/j.mtsust.2025.101222","url":null,"abstract":"<div><div>Phase change materials (PCMs) have proven vital in thermal energy storage systems due to their remarkable energy density and capacity to sustain a stable temperature. This study examines how adding new dendritic fin structures positioned in the lower region can improve heat transfer and melting kinetics in a molten salt-based nano-enhanced phase change material (NEPCM) with <span><math><mrow><mi>F</mi><msub><mi>e</mi><mn>3</mn></msub><msub><mi>O</mi><mn>4</mn></msub><mo>−</mo><mi>C</mi><mi>u</mi></mrow></math></span> hybrid nanoparticles inside rectangular enclosures. A baseline example without fins, a second case with dendritic fins whose branch lengths decrease toward the bottom (type 1), and a third case with dendritic fins whose branch lengths increase toward the bottom (type 2) are the three different configurations that are examined in this study. The thermal behavior was numerically modelled using the porosity-enthalpy method. We also developed an artificial neural network (ANN) model with a multilayer perceptron architecture that includes two hidden layers to predict melting characteristics and thermal performance parameters, training it on both computational and experimental datasets. When paired with hybrid nanoparticles, total melting was accomplished about 41 % faster. With correlation coefficients above 0.98 and mean relative error below 3.5 % under all test settings, the created ANN model was able to predict melting percent, average temperature, and Nusselt number. The ANN model's sensitivity analysis revealed that the two most important factors influencing thermal performance were the concentration of nanoparticles and the fin branch length ratio. For future studies, it would be beneficial to focus on optimizing the parameters of these dendritic fin structures and to investigate the ideal <span><math><mrow><mi>F</mi><msub><mi>e</mi><mn>3</mn></msub><msub><mi>O</mi><mn>4</mn></msub><mo>−</mo><mi>C</mi><mi>u</mi></mrow></math></span> ratios to achieve maximum thermal performance while ensuring colloidal stability.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":"32 ","pages":"Article 101222"},"PeriodicalIF":7.9,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145155586","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessing the techno-sustainability of hemp-based building materials: A comparative study in the Australian context","authors":"Daniela Milagros Rivas-Aybar ,&nbsp;Ian Davies ,&nbsp;Michele John ,&nbsp;Wahidul Biswas","doi":"10.1016/j.mtsust.2025.101218","DOIUrl":"10.1016/j.mtsust.2025.101218","url":null,"abstract":"","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":"32 ","pages":"Article 101218"},"PeriodicalIF":7.9,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145106893","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Recent advances in sustainable natural fiber composites: Environmental benefits, applications, and future prospects","authors":"Rasel Ahmed ,&nbsp;Kamrul Hasan Manik ,&nbsp;Antu Nath ,&nbsp;Jubayer Rahman Shohag ,&nbsp;Juhi Jannat Mim ,&nbsp;Nayem Hossain","doi":"10.1016/j.mtsust.2025.101220","DOIUrl":"10.1016/j.mtsust.2025.101220","url":null,"abstract":"<div><div>Natural fiber composites refer to the blends of plant and animal fibers that are renewable as well as biodegradable and require low energy in their manufacturing, unlike man-made plastics. In this review, five large categories of natural fibers, jute, flax, hemp, wool, and silk, are addressed in terms of environmental production and functionality as well as industrial preparedness on the basis of carbon reduction targets and the strategies of the circular economy. NFCs are contrasted based on their cleanliness of production, robustness, and usability with a new triple-pronged analytical framework. Some of the more recent innovations are the hybrid composites, green processing, as well as using agricultural waste as raw materials. Up to 80 % carbon reduction can be achieved with NFCs, as well as reduced energy required in manufacturing and competitive performance through surface treatments, hybridization, or AI-driven design tools. Nevertheless, the deficiency in the use on a high scale is property variability and moisture sensitivity. It has potential in car interiors, panel systems in buildings, packages, and consumer products. The new technology, like the Digital Twin systems and predictive models, is promising in improved management of lifecycles. This study helps to transition the world toward green materials and less reliance on non-renewable resources by informing about the research gaps and presenting the future direction on the subject. Unlike previous reviews, this work integrates both plant- and animal-based fibers, systematically compares their mechanical and environmental performance, and highlights recent developments such as hybrid composites, waste valorization, and digital tools (AI and Digital Twin). This comprehensive scope offers a unique framework to understand current challenges, emerging solutions, and prospects of NFCs.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":"32 ","pages":"Article 101220"},"PeriodicalIF":7.9,"publicationDate":"2025-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145026339","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"MXene Synthesis, Surface Functionalization, and Membrane Integration for Photocatalytic Removal of Heavy Metals from Wastewater: A Comprehensive Review","authors":"Noor H. Jawad ,&nbsp;Teeba M. Darwesh ,&nbsp;Asmaa F. Abbas ,&nbsp;Ali A. Yahya ,&nbsp;Afraa H. Kamel ,&nbsp;Khalid T. Rashid ,&nbsp;Tamara W. Abood ,&nbsp;Raed A. Al-Juboori ,&nbsp;Hicham Meskher ,&nbsp;Saad Al-Saadi ,&nbsp;Qusay F. Alsalhy","doi":"10.1016/j.mtsust.2025.101208","DOIUrl":"10.1016/j.mtsust.2025.101208","url":null,"abstract":"<div><div>The accelerating global population growth and rising living standards have intensified pressure on freshwater resources, underscoring the urgent need for efficient wastewater treatment technologies. Conventional treatment methods are often inadequate for removing persistent and toxic heavy metal contaminants. MXenes, emerging two-dimensional transition metal carbides and nitrides, have garnered significant attention due to their remarkable hydrophilicity, chemical tunability, high surface area, and superior electrochemical properties. This review critically examines the development and application of MXene-based membrane nanomaterials for the photocatalytic removal of heavy metals from wastewater. Key aspects include novel synthesis routes, such as HF-free and eco-friendly methods, advanced structural modifications, and strategic surface functionalization to enhance photocatalytic and adsorptive performance. We further dissect the fundamental separation mechanisms, exploring electron transfer dynamics, interfacial interactions, and the synergistic roles of MXene composites. This comprehensive analysis aims to guide future research towards sustainable water purification technologies leveraging the unique capabilities of MXene-based systems.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":"32 ","pages":"Article 101208"},"PeriodicalIF":7.9,"publicationDate":"2025-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145047637","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Additive manufacturing of titanium porous transport layers for efficient PEM water electrolysis","authors":"Gerrit Ter Haar,&nbsp;Craig McGregor","doi":"10.1016/j.mtsust.2025.101219","DOIUrl":"10.1016/j.mtsust.2025.101219","url":null,"abstract":"<div><div>This study investigates laser powder bed fusion as a novel manufacturing method for porous transport layers in proton exchange membrane water electrolysers, addressing the limitations of traditional sintering methods in controlling structural morphology and pore distribution. The research combines comprehensive structural characterisation using micro-computed tomography, mercury intrusion porosimetry, and surface profilometry with <em>in-situ</em> performance evaluation. The additive manufactured porous transport layers demonstrated distinct structural advantages, including an anisotropic pore structure with aligned micro-channels (pore entry diameter of 10.91 μm), controlled porosity (43–49 %), and optimized surface morphology. These characteristics resulted in superior electrochemical performance, with a 21 % reduction in ohmic resistance primarily attributed to enhanced interfacial contact between the PTL and catalyst layer. This study demonstrates that laser powder bed fusion technology can not only match but exceed the performance of traditional manufacturing methods for proton exchange membrane water electrolyser components while offering greater design flexibility for future optimisation of water electrolysis cells.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":"32 ","pages":"Article 101219"},"PeriodicalIF":7.9,"publicationDate":"2025-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145047636","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhancing solar evaporator efficiency and reducing salt fouling by separating evaporation surface and water pump","authors":"Hoyeon Kim,&nbsp;GyuHeon Im,&nbsp;Jonghwi Lee","doi":"10.1016/j.mtsust.2025.101206","DOIUrl":"10.1016/j.mtsust.2025.101206","url":null,"abstract":"<div><div>Solar-driven evaporation has emerged as a promising approach for sustainable seawater purification. However, most reported methods often suffer from problems such as low efficiency, scaling, and fouling. To address these long-term limitations, this study presents a novel solar evaporator design that separates the evaporation surface from the water pumping column. This design allows the water pumping column to maintain the same salinity and temperature as the bulk seawater, minimizing scaling, fouling and heat loss. The system employs a temperature-responsive hydrogel with aligned pores to facilitate non-powered water transport driven by diurnal temperature fluctuations. Additionally, the design uses a floating graphene composite paper (GCP) evaporation surface that moves with the water level inside the evaporation chamber, automatically adjusting the angle between the evaporation surface and the sun to optimize energy absorption. Experimental results demonstrate that this configuration effectively prevents salt accumulation within the water channels, minimizes heat loss, and achieves enhanced evaporation rates, thereby offering a viable solution for efficient and sustainable seawater purification.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":"31 ","pages":"Article 101206"},"PeriodicalIF":7.9,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144932104","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}