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npj Materials Sustainability
ISSN 2948-1775 · Nature Portfolio · 114 artikel di indeks
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Recent advances in low-carbon ultra-high-performance concrete: materials, mechanisms, and sustainability perspectives
Abstract Ultra-high-performance concrete combines exceptional strength and durability but carries a disproportionately high environmental burden due to its cement- and energy-intensive composition. Over the past decade, efforts to lower its carbon footprint have centred on incorporating…
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Sustainable extraction of rare earth elements from coal fly ash leachates using a recyclable ionic liquid
Abstract The growing demand for rare earth elements (REEs) has prompted interest in their recovery from alternative sources such as coal fly ash (CFA). This study explores the ionic liquid (IL) betainium bis(trifluoromethylsulfonyl)imide, [Hbet][Tf2N], for selective extraction of REEs from…
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Electrolytic pathway for upgrading waste CO2 into syngas with a carbon capture and utilization energy efficiency greater than 50%
Abstract Captured CO2 can either be stored or converted into a carbon-containing product. Both processes require energy to liberate CO2 from the CO2 capture solution. One way to bypass the energy-intensive recovery of CO2 is to integrate CO2 capture and conversion. For example, OH–-based capture…
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Carbonation of Ca–rich and Mg–rich precursor: a comprehensive review, comparisons and future opportunities
Abstract Mineral carbonation offers durable CO₂ sequestration and pathways to decarbonise cementitious materials. This review systematically compares Ca- and Mg-based precursors in terms of six dimensions: polymorphism, influencing factors, carbonation degree, carbonation products, application and…
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Collection and reporting of waste data to support waste management policies
Abstract Policies for waste management, including target setting, infrastructure planning and circular economy interventions, crucially depend on the availability and quality of waste data. This paper evaluates the Waste Data Interrogator for England (WDI), a key database compiling reports from…
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Low-temperature catalytic upcycling of petroleum coke into battery-grade graphite
Abstract Petroleum coke, a low-value byproduct of oil refining, is widely used as an industrial fuel with significant carbon and sulfur emissions. Converting petroleum coke into battery-grade graphite reduces its environmental footprint while meeting the rising demand for sustainable energy…
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Valorizing citrus fruit into chitosan-MgO nanocomposites: engineering UN SDGs-aligned sustainable active food packaging
Abstract The current study presents a green approach for developing sustainable and biodegradable chitosan (CH) films enhanced with Magnesium Oxide nanoparticles (MgO NPs), utilizing lemon juice (LJ) and lemon peel extract (LPE). This work aims to engineer active films with improved mechanical…
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Sustainable alternatives to petroleum-based micro/nanospheres: a systematic scoping review on biodegradable materials and applications
Abstract Adhering to PRISMA-ScR guidelines, this systematic review evaluates sustainable alternatives to petroleum-based micro/nanospheres. We classify biodegradable materials into natural, synthetic, and composite systems, analyzing their fabrication alongside diverse applications in cosmetics…
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A comparative study on extraction of methanol from lignin in electrolysis, fuel-cell and catalysis modes
Abstract Both the native lignin contained in biomass and the technical lignin that is a by-product of pulp and paper manufacture represent potential resources, and so efficient, low-cost valorization of lignin has attracted worldwide attention. The present work developed a means of extracting…
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Securing European lithium: assessing future demand, primary supply, trade and the role of recycling
Abstract Adoption of electric vehicles and battery stationary storage is increasing lithium demand. The EU is import-dependent and has formulated supply-security targets for self-sufficiency (10% by 2030) and recycled content (6% by 2031 and 12% by 2036). This study critically assesses these…
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Bioaugmentation with bacterial consortia for sustainable plastic waste treatment
Abstract Bacterial consortia, with broad metabolism and environmental resilience, show promise for bioaugmentation treatment of plastic wastes. Consortia design principles and plastic degradation enhancements in laboratory and simulated-system studies were reviewed. Practical barriers include…
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Producing high-quality recycled aggregate concrete: a novel biomimetic strengthening strategy
Abstract Using high-volume construction and demolition (C&D) waste for concrete production is an environmentally sustainable approach. However, the use of C&D waste often adversely affects concrete performance. This study proposed a novel biomimetic strengthening method for recycled aggregates…
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On the importance of property-dependent environmental impact assessment for sustainable additive manufacturing
Abstract The assessment of the environmental impact of additively manufactured parts is difficult due to the hard-to-compare system boundaries. This study proposes a novel property-dependent option for the comparison of additively to conventionally produced parts based on the life cycle assessment…
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Transfer learning-enabled computer vision in concrete technology: fundamentals, applications, and best practices
Abstract The deployment of new artificial intelligence (AI) methods is pivotal in driving innovative automation systems within the construction sector, with growing relevance for improving material sustainability assessment and decision-making. Among different methods, transfer learning (TL) has…
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Electrospun membranes based on cellulose nanomaterials for advanced water treatment applications
Abstract Access to safe drinking water remains a major challenge, especially in regions lacking centralized treatment. Cellulose nanomaterials (CNMs) offer renewable, biodegradable options for membranes with improved hydrophilicity, strength, and fouling resistance. This review summarizes cellulose…
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Engineering oxygen evolution anodes for practical water electrolysis: advances, challenges, and perspectives
Abstract Green hydrogen via renewable-powered electrolysis is vital for decarbonization, yet OER anode scalability remains a key limitation. A comparison of ALK, PEM, AEM, and SOEC technologies reveals challenges in dynamic integration. Lab-to-industrial translation suffers from mass/heat transfer…
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Non-conventional slags as sustainable alternatives in concrete: a comprehensive review
Abstract Non-conventional slag (NCS), including copper, lead, lithium, nickel, phosphorus, and zinc slags are under-utilised industrial by-products with potential in sustainable construction. This review evaluates their use as partial replacements for cement and aggregates, focusing on performance…
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Reexamining the self-sensing response of alkali-activated (geopolymer) materials
Abstract This review examines the self-sensing response of geopolymers subjected to mechanical loading. The analysis reveals that their electromechanical behavior depends strongly on raw materials, chemical composition, pore structure, and curing conditions. While geopolymers display sensing…
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Aqueous matrix and limiting factors in steel slag carbonation under elevated CO2 at ambient conditions
Abstract Alkaline industrial by-products have significant potential for permanent CO2 sequestration, but their reaction kinetics and controlling factors are often overlooked. This study examined the direct aqueous carbonation of basic oxygen furnace (BOF) slag in a slurry setup with continuous…