EcoMat最新文献

{"title":"Designing Thin and Lightweight 3D Metallized Current Collectors With Functional Interfaces for High-Energy-Density Lithium-Sulfur Batteries","authors":"Haomin Zhao,&nbsp;Yuting Wang,&nbsp;Yuanyuan Jiang,&nbsp;Zhe Luo,&nbsp;Dong Chen,&nbsp;Rui Jia,&nbsp;Yu Yang,&nbsp;Jian Chang","doi":"10.1002/eom2.70022","DOIUrl":"https://doi.org/10.1002/eom2.70022","url":null,"abstract":"<p>Lithium-sulfur batteries (LSBs) are highly advantageous for electric vehicles and portable electronics due to their high energy density. However, traditional metal foil current collectors pose many challenges in LSBs. On the anode side, the non-lithiophilic nature of copper foil leads to random lithium dendrite growth, increasing the risk of short circuits. On the cathode side, the electrochemical inertness and limited interfacial contact of aluminum foil cause slow polysulfide conversion under high sulfur loading, thus restricting cycling stability. Meanwhile, these heavy metal foils also reduce the overall energy density of the battery. Herein, we present an effective strategy to develop thin and lightweight 3D metallized current collectors (Ag@PEI-PP and Ni@PEI-PP) with functional interfaces for high-energy-density LSBs. These metallic collectors are made by cold-pressing polypropylene melt-blown fabrics and then applying metal coatings using a polymer-assisted deposition process. Compared to metal foil collectors, they possess an extremely light mass and excellent flexibility. The Ag@PEI-PP boosts the average Coulombic efficiency of lithium metal to 99.88% during cycling by enabling rapid lithium nucleation and uniform deposition. The Ni@PEI-PP maintains a high capacity retention rate of 99.88% per cycle over 200 cycles by speeding up the conversion of polysulfide and lithium sulfide. Based on the entire Li-S cell, including the current collector, active materials, and separator, the assembled LSB achieves high gravimetric (586 Wh kg⁻¹) and volumetric (472 Wh L⁻¹) energy densities. This metallic collector design provides an effective solution to improve the energy density and cycling stability of LSBs.</p><p>\u0000 \u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure>\u0000 </p>","PeriodicalId":93174,"journal":{"name":"EcoMat","volume":"7 8","pages":""},"PeriodicalIF":10.7,"publicationDate":"2025-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.70022","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144666547","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":"Recycling Waste Lignin as Natural Adhesive to Prepare Sustainable Wooden Composite Materials","authors":"Yang Shi,&nbsp;Yuanci Cai,&nbsp;Jinxuan Jiang,&nbsp;Shengbo Ge,&nbsp;Guangyu Xi,&nbsp;Ben Bin Xu,&nbsp;Jianzhang Li","doi":"10.1002/eom2.70024","DOIUrl":"https://doi.org/10.1002/eom2.70024","url":null,"abstract":"<p>Wood is a green, renewable, and biodegradable polymer material, mainly used in fields such as artificial boards, papermaking, and biomass energy. However, its poor flammability and dimensional stability limit its application. Generally, surface treatment is required to achieve the substitution of wood materials for high-performance plastics and plywood. The aim of this study is to prepare bio-composite materials using lignin as a natural adhesive to improve the water resistance and heat resistance of the board surface. Both sides of poplar (<i>Populus spp</i>) boards were uniformly coated with sulfated lignin or dealkalized lignin, and the boards were hot-pressed for 1 h at 30 MPa and 180°C. The experimental results show that the hot-pressing treatment makes the interior of the board more compact; the mechanical strength, waterproof performance, and thermal conductivity are improved. The effect of the lignin-coated samples is more significant after hot-pressing. The type and proportion of lignin have a great influence on the mechanical properties of the material. Among them, 6% sulfate lignin and 6% dealkali lignin samples showed the best mechanical properties, with the maximum tensile strength of 408.06 and 549.86 MPa, and the maximum bending strength of 320.10 and 356.42 MPa, respectively. The sample of 10% dealkali lignin has good hydrophobicity, and the contact angle is 111°. It is of great significance to improve the preparation schemes of new materials such as green artificial boards and biodegradable plastics.</p><p>\u0000 \u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure>\u0000 </p>","PeriodicalId":93174,"journal":{"name":"EcoMat","volume":"7 8","pages":""},"PeriodicalIF":10.7,"publicationDate":"2025-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.70024","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144666548","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":"Sustainable Synthesis of CO2-Based Polyols via Pentaerythritol Derivatives for High-Performance Rigid Polyurethane Foams","authors":"Su Min Jung,&nbsp;Jiyoung Chae,&nbsp;Jiwon Hwang,&nbsp;Harin Kim,&nbsp;Nam-Kyun Kim,&nbsp;Joon Hyun Baik","doi":"10.1002/eom2.70021","DOIUrl":"https://doi.org/10.1002/eom2.70021","url":null,"abstract":"<p>CO₂-based polyols represent a significant advancement in carbon capture and utilization technologies, offering an innovative solution to mitigate greenhouse gas emissions while producing value-added polymeric materials. This study investigates their synthesis using double metal cyanide (DMC) catalysts and their application in rigid polyurethane foams (RPUFs). To address challenges in conventional CO₂ incorporation, novel initiators, including pentaerythritol propoxylate (PE-PO) and pentaerythritol ethoxylate (PE-EO), are evaluated. DMC catalysts are synthesized with tetrahydrofurfuryl alcohol (THFA) as a complexing agent. Among the tested initiators, PE-PO demonstrated the highest efficiency, achieving a CO₂ incorporation of 20.4 mol% at an optimal monomer-to-initiator molar ratio of 50. The resulting CO₂-based polyols are effectively utilized in RPUFs, which exhibit enhanced mechanical properties, uniform cell morphology, and stable thermal performance. The enhanced mechanical properties of the RPUFs correlate with an increase in carbonate linkages within the polymer backbone, leading to greater intermolecular interactions and improved structural integrity, as confirmed by FT-IR and compression tests. Beyond enhancing material performance, this approach contributes to sustainability by replacing conventional petroleum-based polyols. This work introduces a novel strategy for CO₂ integration into polyols, advancing the sustainable synthesis of high-performance RPUFs. The findings highlight the potential of novel initiators and DMC catalysts to overcome existing limitations, representing a significant step forward in eco-friendly polymer development.</p><p>\u0000 \u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure>\u0000 </p>","PeriodicalId":93174,"journal":{"name":"EcoMat","volume":"7 7","pages":""},"PeriodicalIF":10.7,"publicationDate":"2025-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.70021","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144606504","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":"Inkjet-Printed Metal–Organic Frameworks for Smart E-Textile Supercapacitors","authors":"M. R. Islam,&nbsp;S. Afroj,&nbsp;S. Tan,&nbsp;S. J. Eichhorn,&nbsp;K. S. Novoselov,&nbsp;N. Karim","doi":"10.1002/eom2.70020","DOIUrl":"https://doi.org/10.1002/eom2.70020","url":null,"abstract":"<p>Wearable electronic textiles (e-textiles) present a transformative platform for integrating real-time health monitoring devices into everyday garments. Despite their promise, the development of flexible, efficient, and reliable on-body energy storage remains a major bottleneck. Inkjet printing, known for its precision and compatibility with various substrates, emerges as a viable method for fabricating energy devices on textiles. Metal–organic frameworks (MOFs) have shown great promise in prior studies for enabling flexible and high-performance energy storage in wearable electronics. Here, we present a novel strategy for engineering metal–organic framework (MOF)-based e-textiles as electrodes for a solid-state textile supercapacitor, utilizing inkjet printing technology. For the first time, standalone MOF inks were successfully deposited on textile substrates, producing highly flexible and washable conductive fabrics. These MOF-integrated textiles functioned as supercapacitor electrodes, achieving outstanding electrochemical performance with areal and gravimetric capacitances reaching ~354 mF cm⁻² and ~87 F g⁻¹, at a 1 mV s⁻¹ scan rate respectively. The devices also demonstrated a high energy density of approximately 196 μW h cm⁻² with a remarkable power density of ~54 385 μW cm⁻², with nearly 99% retention after 1000 charge–discharge cycles. These results establish MOF-based e-textiles as a promising avenue for the next-generation of wearable energy storage systems.</p><p>\u0000 \u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure>\u0000 </p>","PeriodicalId":93174,"journal":{"name":"EcoMat","volume":"7 7","pages":""},"PeriodicalIF":10.7,"publicationDate":"2025-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.70020","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144573613","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":"Freezing Thermal Cycling Modulation of the Photoelectric Conversion in Organic Metal Halide Perovskites","authors":"Shengjian Qin,&nbsp;Jiayu Song,&nbsp;Yinan Jiao,&nbsp;Jiale Meng,&nbsp;Hang Su,&nbsp;Jinjin Zhao","doi":"10.1002/eom2.70019","DOIUrl":"https://doi.org/10.1002/eom2.70019","url":null,"abstract":"<p>The industrialization of perovskite thin-film photovoltaics (PVs) has attracted global attention owing to their high photoelectric conversion efficiencies (PCEs). Seasonal temperature cycling significantly impacts the efficiency and stability of these devices, yet this phenomenon remains underexplored. This study investigates the influences of freezing thermal cycling (between near 0°C and 60°C) on the PV performance of traditional methylammonium lead iodide (MAPbI₃) perovskite films. The results show that freezing thermal cycling introduces tensile lattice strain along [110] direction in MAPbI₃ perovskite films. The sample without thermal cycling exhibits the minimal tensile lattice strain of 0.32%, resulting in a minimal bandgap of 1.588 eV, reduced defect density, and extended carrier lifetime of 33.78 ns. The PV device using this perovskite film as the absorber layer demonstrates a maximum photocurrent of 83 μA. Theoretical calculations confirm that a moderate tensile strain along the [110] direction in tetragonal MAPbI₃ phase enhances the photoelectric conversion performance by reducing the bandgap and increasing the formation energy of iodine vacancies. These results highlight freezing thermal cycling as an effective strain engineering strategy offers a scalable approach for tuning photoelectric conversion performance of perovskite-based devices.</p><p>\u0000 \u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure>\u0000 </p>","PeriodicalId":93174,"journal":{"name":"EcoMat","volume":"7 7","pages":""},"PeriodicalIF":10.7,"publicationDate":"2025-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.70019","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144492918","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":"Dynamic Electrochemical Impedance Spectroscopy: A Forward Application Approach for Lithium-Ion Battery Status Assessment","authors":"Xinyi Zhang,&nbsp;Yunpei Lu,&nbsp;Jingfu Shi,&nbsp;Yuezheng Liu,&nbsp;Hao Cheng,&nbsp;Yingying Lu","doi":"10.1002/eom2.70018","DOIUrl":"https://doi.org/10.1002/eom2.70018","url":null,"abstract":"<p>Electrochemical impedance spectroscopy (EIS), as a non-invasive and non-destructive diagnostic technique, has shown unique advantages and significant potential in lithium-ion battery state monitoring. However, its traditional steady-state methods face substantial limitations under the non-stationary operating conditions commonly encountered in practical applications. To overcome these challenges, dynamic electrochemical impedance spectroscopy (DEIS) has emerged as a critical tool due to its real-time monitoring capabilities. This review provides a comprehensive overview of recent advances in DEIS for lithium-ion battery state monitoring, starting with an in-depth explanation of its working principles and a comparison with conventional EIS to highlight their respective advantages. Analytical methodologies for EIS are then introduced to establish a theoretical foundation for the discussion of subsequent findings. The review emphasizes recent breakthroughs achieved using DEIS, particularly in elucidating charge transfer dynamics during charge–discharge cycles, detecting lithium plating at the anode, and monitoring internal temperature variations within batteries. It further explores the potential of DEIS in battery health prediction, demonstrating its role in enhancing the accuracy and reliability of battery management systems. Finally, the review concludes with a forward-looking perspective on the future development of DEIS, underscoring its transformative potential in advancing battery diagnostics and management technologies.</p>","PeriodicalId":93174,"journal":{"name":"EcoMat","volume":"7 7","pages":""},"PeriodicalIF":10.7,"publicationDate":"2025-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.70018","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144472920","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":"Combinatorial Data-Driven Innovation of Ecofriendly Transparent Solar Heat Control Coating for Green Buildings","authors":"Weibin Zhang,&nbsp;Man Kwan Law,&nbsp;Muhammad Bilal Asif,&nbsp;Jinglei Yang","doi":"10.1002/eom2.70017","DOIUrl":"https://doi.org/10.1002/eom2.70017","url":null,"abstract":"<p>Transparent solar heat control (TSHC) coatings for windows have garnered significant attention as a key technology for passive cooling in green buildings to reduce energy consumption. However, many studies have focused only on TSHC coatings composed of single functional nanoparticles, and the development of these coatings traditionally relied on trial-and-error methods. Herein, we propose a real experimental data-driven tandem neural networks (NNs) model, comprising spectrum NNs and inverse design NNs, for the combinatorial innovation, development, and optimization of TSHC coatings. Attributed to the high quality of the data, the resulting well-trained tandem NNs with an R² value above 0.95 facilitate the rapid development and precise inverse design of TSHC coatings with multiple functional nanoparticles. The developed coating, composed of cesium tungsten oxide (CWO), antimony tin oxide (ATO), and indium tin oxide (ITO) nanoparticles, achieves a luminous transmittance of 69%, UV transmittance of 0.1%, and NIR transmittance of 4%. The calculated solar heat gain coefficient (SHGC) and light-to-solar gain (LSG) ratio are 0.49 and 1.41, respectively. Temperature reduction tests using a house simulant revealed that the developed TSHC coating can reduce indoor temperatures by up to 8°C. Furthermore, innovative application methods, including spray coating and solution-processed film techniques, have been explored to apply the TSHC coating to large glass surfaces. Our work provides a novel strategy to efficiently develop and optimize the optical properties of coatings with multiple functional compositions.</p>","PeriodicalId":93174,"journal":{"name":"EcoMat","volume":"7 6","pages":""},"PeriodicalIF":10.7,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.70017","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144244303","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":"Multiscale Materials Imaging and Spectroscopy for Battery Materials","authors":"Youngwoo Choi,&nbsp;Gumin Kang,&nbsp;Seonghyun Kim,&nbsp;Yoonhan Cho,&nbsp;Jaewhan Oh,&nbsp;Dongho Kim,&nbsp;Jacob Choe,&nbsp;Jong Min Yuk,&nbsp;Pyuck-Pa Choi,&nbsp;Yongsoo Yang,&nbsp;Sung-Yoon Chung,&nbsp;Chi Won Ahn,&nbsp;Jongwoo Lim,&nbsp;Seungbum Hong","doi":"10.1002/eom2.70016","DOIUrl":"https://doi.org/10.1002/eom2.70016","url":null,"abstract":"<p>Multiscale imaging and spectroscopy play a pivotal role in understanding the structural, chemical, and dynamic behavior of battery materials, providing critical insights that drive advancements in performance, longevity, and safety. This review provides a comprehensive analysis of various imaging techniques, from macroscopic tools like x-ray tomography to nanoscale methods such as atomic force microscopy and transmission electron microscopy. By categorizing these techniques based on spatial resolution, the review highlights their applications in resolving key issues like electrode degradation, dendrite formation, and phase transitions during battery operation. Moreover, the integration of machine learning accelerates data processing, enabling multiscale correlations and predictive modeling. The review underscores the necessity of multiscale approaches to optimize battery performance, safety, and lifespan, showcasing how emerging methodologies contribute to next-generation energy storage technologies.</p><p>\u0000 \u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure>\u0000 </p>","PeriodicalId":93174,"journal":{"name":"EcoMat","volume":"7 5","pages":""},"PeriodicalIF":10.7,"publicationDate":"2025-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.70016","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143914508","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":"Synergistic Effects in Copolymerized Carbon Nitride/MoO3 Heterojunction Composites for Efficient Visible-Light-Driven Photocatalysis","authors":"Junsheng Ye,&nbsp;Abeer M. Beagan,&nbsp;Sheng-Rong Guo,&nbsp;Asif Hayat,&nbsp;Yasin Orooji","doi":"10.1002/eom2.70015","DOIUrl":"https://doi.org/10.1002/eom2.70015","url":null,"abstract":"<p>The engineering of very effective and sustainable photocatalysts is needed to confront both environmental and energy problems. This work included the synthesis and evaluation of a range of copolymerized graphitic carbon nitride (CN)-based materials (CN-PA_x) and their heterojunction composite materials with molybdenum trioxide (MoO₃) for photocatalytic hydrogen (H₂) generation and methylene blue (MB) degradation under visible-light illumination. Pristine CN and MoO₃ had lower photocatalytic performance, but copolymerized CN materials (CN-PA₂₀₀, CN-PA₄₀₀, CN-PA₆₀₀) and their heterojunction composite materials (CN/MoO₃, CN-PA₄₀₀/MoO₃(3%), CN-PA₄₀₀/MoO₃(6%), and CN-PA₄₀₀/MoO₃(9%)) demonstrated substantial enhancements. Of them, CN-PA₄₀₀/MoO₃(6%) had the greatest H₂ production rate of 127.22 μmol/h, almost 6.8 times higher than pure CN. It attained an outstanding MB photodegradation performance of 99.3% in 1 h, demonstrating exceptional stability by maintaining over 95% effectiveness throughout four successive cycles. The exceptional efficiency of CN-PA₄₀₀/MoO₃(6%) is ascribed to its improved heterojunction design, which improves the separation of charge particles, minimizes recombination, and promotes visible-light absorption. The band alignment among CN-PA₄₀₀ and MoO₃ facilitates effective electron transport, whereas the presence of many active sites enhances the photocatalytic processes. These results present significant insights into the development of effective heterojunction photocatalysts and highlight the promise of CN-PA₄₀₀/MoO₃(6%) for renewable energy generation and environmental cleanup purposes.</p>","PeriodicalId":93174,"journal":{"name":"EcoMat","volume":"7 5","pages":""},"PeriodicalIF":10.7,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.70015","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143908924","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":"A Large-Area Graphene-Based Composite Paper for Efficient Gold Extraction From E-Waste and Its Reuse","authors":"Mingrui Zhang,&nbsp;Qing Zhang,&nbsp;Fei Li,&nbsp;Chengjin Wang,&nbsp;Yang Su,&nbsp;Hui-Ming Cheng","doi":"10.1002/eom2.70014","DOIUrl":"https://doi.org/10.1002/eom2.70014","url":null,"abstract":"<p>The increasing accumulation of e-waste containing precious metals calls for the development of efficient recycling strategies for gold recovery from e-waste. In this study, we present scalable fabrication (up to 3600 cm²) of rGO/cellulose composite papers with a high rGO areal density of 7.5 g/m² and their use as efficient and large-area adsorbents for gold extraction. The resulting rGO@cellulose composite exhibits excellent gold extraction capacity, achieving 20 and 36.3 g/m² at 25°C and 60°C, respectively, which translates to high gravimetric capacities of 2662 mg/g and 4833 mg/g. When used for gold extraction from e-waste containing 13 types of metals, the rGO@cellulose maintains a precise selectivity for gold and achieves high extraction efficiency of 99.6%, providing a promising avenue for the sustainable recovery of gold from e-waste. Furthermore, the gold recycled by the rGO@cellulose can be reused for photothermal steam generation and catalytic degradation of environmental contaminants, demonstrating its potential for diverse environmental applications beyond gold extraction. This work provides a sustainable approach to e-waste recycling, offering a pathway to address environmental challenges while promoting the circular use of resources.</p>","PeriodicalId":93174,"journal":{"name":"EcoMat","volume":"7 5","pages":""},"PeriodicalIF":10.7,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.70014","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143871774","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}