Sustainable Materials and Technologies最新文献

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Optimizing lithium carbonate recovery through gas-liquid reactive crystallization of lithium hydroxide and carbon dioxide
IF 8.6 2区 工程技术
Sustainable Materials and Technologies Pub Date : 2025-03-10 DOI: 10.1016/j.susmat.2025.e01341
Bhaskar Joshi , Seniz Ucar , Hanna Katariina Knuutila , Hallvard Fjøsne Svendsen , Jens-Petter Andreassen , Sulalit Bandyopadhyay
{"title":"Optimizing lithium carbonate recovery through gas-liquid reactive crystallization of lithium hydroxide and carbon dioxide","authors":"Bhaskar Joshi ,&nbsp;Seniz Ucar ,&nbsp;Hanna Katariina Knuutila ,&nbsp;Hallvard Fjøsne Svendsen ,&nbsp;Jens-Petter Andreassen ,&nbsp;Sulalit Bandyopadhyay","doi":"10.1016/j.susmat.2025.e01341","DOIUrl":"10.1016/j.susmat.2025.e01341","url":null,"abstract":"<div><div>Reactive crystallization of Li<sub>2</sub>CO<sub>3</sub> in a semi-batch reactor using carbon dioxide (CO<sub>2</sub>) has been studied in the literature with an aim to enhance recovery of lithium from primary and secondary resources. However, an in-depth understanding of control variables that can enhance the yield of the recovery process is missing. Here, we discuss the fundamentals of Li<sub>2</sub>CO<sub>3</sub> reactive crystallization from LiOH solution by carbon dioxide (CO<sub>2</sub>) injection to optimize lithium recovery. The significant factors affecting Li<sub>2</sub>CO<sub>3</sub> crystallization, such as initial LiOH concentration, temperature, and CO<sub>2</sub> flow rate, are investigated. The solid-liquid transitions and chord length distributions are monitored during Li<sub>2</sub>CO<sub>3</sub> crystallization using <em>in situ</em> focused beam reflectance measurement (FBRM) and particle vision measurement (PVM) probes. Our results show that maximum lithium recovery corresponds to system pH maximum, influenced by the formation of soluble lithium bicarbonate. Furthermore, the work proposes an optimized CO<sub>2</sub> injection strategy for maximizing lithium recovery in the form of Li<sub>2</sub>CO<sub>3</sub> precipitates.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"44 ","pages":"Article e01341"},"PeriodicalIF":8.6,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143621272","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Rechargeable cement-based solid-state nickel-iron batteries for energy storage of self-powered buildings
IF 8.6 2区 工程技术
Sustainable Materials and Technologies Pub Date : 2025-03-09 DOI: 10.1016/j.susmat.2025.e01350
Dandan Yin , Shihui Liu , Liqiang Yin , Kang Du , Jing Yan , Catherine K. Armwood-Gordon , Lin Li
{"title":"Rechargeable cement-based solid-state nickel-iron batteries for energy storage of self-powered buildings","authors":"Dandan Yin ,&nbsp;Shihui Liu ,&nbsp;Liqiang Yin ,&nbsp;Kang Du ,&nbsp;Jing Yan ,&nbsp;Catherine K. Armwood-Gordon ,&nbsp;Lin Li","doi":"10.1016/j.susmat.2025.e01350","DOIUrl":"10.1016/j.susmat.2025.e01350","url":null,"abstract":"<div><div>The burgeoning need for sustainable and efficient energy storage solutions in the construction sector has spurred the exploration of innovative materials and technologies. This study presents the development and characterization of rechargeable cement-based solid-state nickel‑iron batteries designed for the energy storage of self-powered buildings. The cement-based electrolyte system incorporates cement, silica sand, ion exchange resin, and alkaline solution, optimized for high ionic conductivity. Nickel and iron electrodes were prepared via electroplating on carbon fiber mesh and nickel foam substrates. Extensive electrochemical testing, including cyclic voltammetry, electrochemical impedance spectroscopy, and charge-discharge evaluations, along with scanning electron microscopy and energy dispersive X-ray spectroscopy analyses, were conducted to assess battery performance. The results demonstrated that the nickel foam electrodes significantly outperformed the carbon fiber mesh electrodes in terms of discharge capacity, efficiency, and energy density. Notably, the cement-based batteries achieved a maximum average energy density of over 11 Wh/m<sup>2</sup> over 30 cycles. The study concluded that the robust and interconnected structure of the nickel foam substrate enhances electrochemical activity and ion transport, making it a superior electrode material for cement-based batteries. This research offers promising insights into integrating cement-based batteries into self-sustaining energy systems for buildings, highlighting the potential for practical applications in energy storage.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"44 ","pages":"Article e01350"},"PeriodicalIF":8.6,"publicationDate":"2025-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143621273","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A novel zwitterionic chromatography approach to separate lithium from unconventional resources
IF 8.6 2区 工程技术
Sustainable Materials and Technologies Pub Date : 2025-03-09 DOI: 10.1016/j.susmat.2025.e01339
Hoon Choi , Coleman Jennewein , Marisa R. Moss , Louis A. Chirban , Elizabeth Kolbe , Daniel Li , Marcus Condarcure , Ryan Prestangen , Zbyslaw Owczarczyk , Lintao Bu , Brandon C. Knott , Michael F. Crowley , James Wei , Elizabeth Endler , Andy Robinson , Pilanda Watkins-Curry , Tzahi Y. Cath , Bryan S. Pivovar , A. Nolan Wilson , Eric M. Karp
{"title":"A novel zwitterionic chromatography approach to separate lithium from unconventional resources","authors":"Hoon Choi ,&nbsp;Coleman Jennewein ,&nbsp;Marisa R. Moss ,&nbsp;Louis A. Chirban ,&nbsp;Elizabeth Kolbe ,&nbsp;Daniel Li ,&nbsp;Marcus Condarcure ,&nbsp;Ryan Prestangen ,&nbsp;Zbyslaw Owczarczyk ,&nbsp;Lintao Bu ,&nbsp;Brandon C. Knott ,&nbsp;Michael F. Crowley ,&nbsp;James Wei ,&nbsp;Elizabeth Endler ,&nbsp;Andy Robinson ,&nbsp;Pilanda Watkins-Curry ,&nbsp;Tzahi Y. Cath ,&nbsp;Bryan S. Pivovar ,&nbsp;A. Nolan Wilson ,&nbsp;Eric M. Karp","doi":"10.1016/j.susmat.2025.e01339","DOIUrl":"10.1016/j.susmat.2025.e01339","url":null,"abstract":"<div><div>Lithium (Li) is a key element for clean energy technologies, and, accordingly, the global lithium demand has been increasing rapidly. Therefore, to meet the Li demand and maintain supply chain stability, it is critical to develop efficient lithium extraction technologies that allow exploitation of unconventional lithium resources, such as geothermal brines and inland brine streams. However, the recovery of Li from these resources is challenging due to low Li concentration, low ratios of Li/Na, Li/Mg, or Li/Ca, and complex feed compositions. To address this, we introduced a new Direct Lithium Extraction (DLE) process using Zwitterionic Chromatography (ZIC) to separate Li from other salts. Since salts are partitioned on ZIC under water elution, no reagent chemicals are needed, and the Li separation is not limited by the adsorption capacity. We prepared 13 different zwitterionic (ZI) resins to investigate the salt retention on various ZI groups and then screened out promising sorbents for efficient Li separation. It was found that salt retention was synergistically affected by the pore size and ZI configurations. Using carboxybetaine (QAC3CA) sorbents, multicomponent separations showed that Li can be partitioned from divalent salts or Na with selectivities of 1.8 or 1.9, respectively. Although the selectivity is relatively low, in real brine tests, Li was separated from Ca and Mg with 79.2 % yield, showing the potential for a continuous process to achieve high productivity and high yield. Simulation studies suggest the salt elution mechanism is related to the hydration reaction energy and the effective hydrated radius of cations.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"44 ","pages":"Article e01339"},"PeriodicalIF":8.6,"publicationDate":"2025-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143628194","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Advancements in natural fibre based polymeric composites: A comprehensive review on mechanical-thermal performance and sustainability aspects
IF 8.6 2区 工程技术
Sustainable Materials and Technologies Pub Date : 2025-03-08 DOI: 10.1016/j.susmat.2025.e01345
Sundarakannan Rajendran , Geetha Palani , Herri Trilaksana , Uthayakumar Marimuthu , Gokul Kannan , Yo-Lun Yang , Vigneshwaran Shanmugam
{"title":"Advancements in natural fibre based polymeric composites: A comprehensive review on mechanical-thermal performance and sustainability aspects","authors":"Sundarakannan Rajendran ,&nbsp;Geetha Palani ,&nbsp;Herri Trilaksana ,&nbsp;Uthayakumar Marimuthu ,&nbsp;Gokul Kannan ,&nbsp;Yo-Lun Yang ,&nbsp;Vigneshwaran Shanmugam","doi":"10.1016/j.susmat.2025.e01345","DOIUrl":"10.1016/j.susmat.2025.e01345","url":null,"abstract":"<div><div>Natural fibre composites (NFC) have emerged as a promising alternative to conventional synthetic fibre composites, primarily attributed to their inherent environmental friendliness and sustainable nature. This review comprehensively evaluates the recent advancements in NFC concerning their thermal, mechanical, and sustainable attributes. The investigation encompasses a detailed analysis of influential factors, including fibre properties, chemical treatment, hybridization, particle addition, environmental conditions, and fabrication methods, with a specific focus on their impact on the mechanical and thermal behaviour of NFC. In the case of thermal performance, the review scrutinizes key aspects such as thermal conductivity, heat resistance, and flame retardancy of NFC. Emphasis is placed on understanding the significance of sustainability in NFC, encompassing discussions on environmental effects, sustainable material selection, and life cycle assessment. The critical assessment provided by this research offers insights into the intricate interplay of various factors shaping the thermal, mechanical, and sustainability characteristics of NFC. Overall, this review aims to furnish a comprehensive understanding of the evolving landscape in NFC, providing valuable insights into their thermal, mechanical, and sustainable attributes.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"44 ","pages":"Article e01345"},"PeriodicalIF":8.6,"publicationDate":"2025-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143621276","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A sustainable δ-MnO₂ derived from Amazon rainforest Mn-ore tailings for applications in lithium-ion batteries
IF 8.6 2区 工程技术
Sustainable Materials and Technologies Pub Date : 2025-03-07 DOI: 10.1016/j.susmat.2025.e01347
L. Angeletti , M. Agostini , B.A. Miranda Figueira , A. Latini , E.C. Paris , F. De Giorgio , T. Schultz , C. Di Conzo , F. Mura , M. Rossi , N.G. Yadav , P. Adelhelm , F. Mazzei , S. Brutti , S. Quaranta
{"title":"A sustainable δ-MnO₂ derived from Amazon rainforest Mn-ore tailings for applications in lithium-ion batteries","authors":"L. Angeletti ,&nbsp;M. Agostini ,&nbsp;B.A. Miranda Figueira ,&nbsp;A. Latini ,&nbsp;E.C. Paris ,&nbsp;F. De Giorgio ,&nbsp;T. Schultz ,&nbsp;C. Di Conzo ,&nbsp;F. Mura ,&nbsp;M. Rossi ,&nbsp;N.G. Yadav ,&nbsp;P. Adelhelm ,&nbsp;F. Mazzei ,&nbsp;S. Brutti ,&nbsp;S. Quaranta","doi":"10.1016/j.susmat.2025.e01347","DOIUrl":"10.1016/j.susmat.2025.e01347","url":null,"abstract":"<div><div>The transition to net-zero emissions by 2050 necessitates the development of sustainable and efficient energy storage systems to complement the rise in renewable energy generation. Lithium-ion batteries (LiBs) are pivotal in this energy transformation, yet challenges remain in developing sustainable, high-performance materials. Manganese oxides (MnOₓ) are promising candidates for LiBs anodes due to their abundance and high theoretical capacity. However, the commercial synthesis of MnOₓ materials is resource-intensive, and the mining processes generate large amounts of environmentally hazardous tailings. In this study, we propose a novel method to recover manganese from mining tailings in the Brazilian Amazon and synthesize δ-MnO₂ as a high-capacity conversion anode material for LIBs. Using a green recovery method involving KOH and H₂O₂, we extracted potassium manganate (K₂MnO₄) from the tailings with a recovery efficiency of 90.3 %,and synthesized δ-MnO₂. The prepared material showed promising electrochemical properties, demonstrating its potential as a sustainable alternative to commercially available manganese oxides. This process not only offers a way to mitigate the environmental risks posed by manganese mining tailings but also provides an economically viable solution for producing high-performance battery materials. The developed methodology can be applied to other manganese-bearing residues and low-grade ores, contributing to the growing demand for battery-grade manganese in a sustainable and circular manner.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"44 ","pages":"Article e01347"},"PeriodicalIF":8.6,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143611422","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Production of superhydrophobic cardboard-based aerogel for effective oil recovery
IF 8.6 2区 工程技术
Sustainable Materials and Technologies Pub Date : 2025-03-06 DOI: 10.1016/j.susmat.2025.e01340
James Laurence A. Ruello , Rajendra B. Mujmule , Shimelis Kebede Kassahun , Zebene Kiflie , Hern Kim
{"title":"Production of superhydrophobic cardboard-based aerogel for effective oil recovery","authors":"James Laurence A. Ruello ,&nbsp;Rajendra B. Mujmule ,&nbsp;Shimelis Kebede Kassahun ,&nbsp;Zebene Kiflie ,&nbsp;Hern Kim","doi":"10.1016/j.susmat.2025.e01340","DOIUrl":"10.1016/j.susmat.2025.e01340","url":null,"abstract":"<div><div>While biomass-derived aerogels have shown promising potential for oil spill remediation, the use of harmful solvents during their production processes, with consequent environmental impacts, remains a significant hurdle. This research addresses the challenge by presenting a quite simple method for creating a robust and superhydrophobic dual-pore structured aerogel from readily available cardboard waste for efficient oil recovery. The aerogel is crafted through a freeze-drying process that generates a network of interconnected random and lamellar pores. Subsequent crosslinking with Ca<sup>2+</sup> ions and a silanization reaction enhance the material's resilience and promote hydrophobicity. These combined treatments endow the final aerogel with reliable mechanical integrity, good thermal stability, and fire-retardant properties. Notably, the adsorbent demonstrates exceptional oil recovery capabilities, with a rapid adsorption time of 1–2 s and a high saturation adsorption capacity ranging from 16.1 to 29.5 g g<sup>−1</sup>. Furthermore, the aerogel exhibits excellent reusability, maintaining its oil recovery performance even after multiple cycles.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"44 ","pages":"Article e01340"},"PeriodicalIF":8.6,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143580341","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Sustainable recovery of spent ternary cathode materials via wasted asphalt pyrolysis in closed-loop recycling
IF 8.6 2区 工程技术
Sustainable Materials and Technologies Pub Date : 2025-03-05 DOI: 10.1016/j.susmat.2025.e01343
Hui Tong , Zhiyuan Liu , Yi Li , Bochuan Deng , Jing Wang , Gaoqiang Mao , Yong Ji , Wan-Jing Yu , Xueyi Guo
{"title":"Sustainable recovery of spent ternary cathode materials via wasted asphalt pyrolysis in closed-loop recycling","authors":"Hui Tong ,&nbsp;Zhiyuan Liu ,&nbsp;Yi Li ,&nbsp;Bochuan Deng ,&nbsp;Jing Wang ,&nbsp;Gaoqiang Mao ,&nbsp;Yong Ji ,&nbsp;Wan-Jing Yu ,&nbsp;Xueyi Guo","doi":"10.1016/j.susmat.2025.e01343","DOIUrl":"10.1016/j.susmat.2025.e01343","url":null,"abstract":"<div><div>With the continuous development of the lithium-ion battery (LIB) industry, the number of retired power batteries has been increased rapidly. The ternary cathode materials from spent batteries are rich in valuable elements such as lithium, nickel, and cobalt. It is of great significance to extract and reuse those metal elements. Herein, we proposed a favorable method for disintegrating spent cathode materials under the reductive gas obtained by pyrolysis of spent asphalt at a low temperature of 500 °C. The structure of the spent ternary material was completely decomposed under a mild condition, in which 97.3 wt% of Li was well released to form lithium carbonate. The treated transition-metal salt solution was employed to prepare a precursor through a simple hydrothermal process, and a ternary cathode material (NCM 811) with superior electrochemical performance was achieved. The impact on the economy and environment under this procedure was estimated by the Everbatt model. The greenhouse gas emission in this process was only 50.1 % of that from the pyrometallurgical treatment and 64.5 % of that in the hydrometallurgical process. The proposed green recycling strategy demonstrated the enormous potential for high value-added closed-loop recycling of spent ternary cathode materials.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"44 ","pages":"Article e01343"},"PeriodicalIF":8.6,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143591890","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Research on prediction of energy density and power density of biomass carbon-based supercapacitors based on machine learning
IF 8.6 2区 工程技术
Sustainable Materials and Technologies Pub Date : 2025-03-03 DOI: 10.1016/j.susmat.2025.e01309
Xueying Lu , Chenxi Zhao , Huanyu Tu , Siyu Wang , Aihui Chen , Haibin Zhang
{"title":"Research on prediction of energy density and power density of biomass carbon-based supercapacitors based on machine learning","authors":"Xueying Lu ,&nbsp;Chenxi Zhao ,&nbsp;Huanyu Tu ,&nbsp;Siyu Wang ,&nbsp;Aihui Chen ,&nbsp;Haibin Zhang","doi":"10.1016/j.susmat.2025.e01309","DOIUrl":"10.1016/j.susmat.2025.e01309","url":null,"abstract":"<div><div>The advancement of computer technology has made machine learning models widely used to study the electrochemical performance of supercapacitors, thus accelerating material discovery and performance optimization. From the perspective of biomass raw material characteristics, this study innovatively predicts the energy density and power density of biomass carbon-based supercapacitors based on Extreme Gradient Boosting (XGBoost), Light Gradient Boosting Machine (LightGBM), and Deep-Learning Neural Network (DNN) models. The results show that the LightGBM model performs best in energy density prediction, with R<sup>2</sup> reaching 0.922. The XGBoost model has the best effect on the power density prediction, and the R<sup>2</sup> is as high as 0.984. At the same time, through the analysis of SHAP value, it is found that biomass raw materials' composition and activation conditions are important characteristics affecting energy density and power density, which is very important for optimizing the performance of carbon materials. Therefore, it is a feasible method to predict supercapacitors' energy and power density from the perspective of the characteristics of biomass raw materials. This provides a reliable and valuable method for optimizing the performance of supercapacitors and predicting other performance parameters.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"44 ","pages":"Article e01309"},"PeriodicalIF":8.6,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143601571","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A natural glue paste aminated graphene oxide onto ammonium polyphosphate towards “multiphase integrated” polymer composites: synthesis and application
IF 8.6 2区 工程技术
Sustainable Materials and Technologies Pub Date : 2025-03-02 DOI: 10.1016/j.susmat.2025.e01336
Zheng Li , Sichao Yu , Zewei Gong , Xuan Yao , Jing Zhang , Guosheng Wang , Ye-Tang Pan , Huiying Gao , Na Wang
{"title":"A natural glue paste aminated graphene oxide onto ammonium polyphosphate towards “multiphase integrated” polymer composites: synthesis and application","authors":"Zheng Li ,&nbsp;Sichao Yu ,&nbsp;Zewei Gong ,&nbsp;Xuan Yao ,&nbsp;Jing Zhang ,&nbsp;Guosheng Wang ,&nbsp;Ye-Tang Pan ,&nbsp;Huiying Gao ,&nbsp;Na Wang","doi":"10.1016/j.susmat.2025.e01336","DOIUrl":"10.1016/j.susmat.2025.e01336","url":null,"abstract":"<div><div>Ammonium polyphosphate (APP) is an efficient halogen-free flame retardant that has been widely applied in various polymer systems. However, its practical application is often limited by poor dispersion and insufficient interfacial compatibility. This study is inspired by the natural mechanism of mollusks secreting adhesive proteins to achieve strong adhesion to wet rock surfaces. A sustainable flame retarding-reinforcing compound was synthesized through molecular design by grafting aminated graphene oxide (NGO) onto chitosan (CS)-coated APP (APP@CS-NGO), which exhibited excellent dispersion ability, and its chemical bonding with epoxidized natural rubber (ENR) to form a “Multiphase Integrated” material (MI). The effects of interphase compatibility and dispersion of fillers on flame retardancy and mechanical properties of the materials were investigated. The results showed that the APP@CS-NGO has been successfully prepared through the NGO and APP under the effect of CS bridging. The compatibility and flame retardancy of “Multiphase Integrated” materials were further investigated. The results showed that the tensile properties of the MI 5 improved by 74.6 % compared to pure APP composites (MI 2), with a loss factor reduced to 0.83, indicating superior compatibility and dispersion in ENR. Meanwhile, the intrinsic mechanism of compatibility enhancement is explored in depth through simulation. The LOI of MI 5 increased from 19.5 % to 29.1 %, with UL-94 reaching V-0. At 800 °C, the residual carbon content rose from 26.2 % to 39.5 %, and the peak heat release rate (pHRR) was 67.8 % lower than MI 1. These results confirm that enhanced compatibility improves flame retardancy. Furthermore, this provides new ways to achieve fire-safe and sustainable polymers.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"44 ","pages":"Article e01336"},"PeriodicalIF":8.6,"publicationDate":"2025-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143580339","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Methylene blue dye degradation characteristics of BiFeO3-graphene-LiNbO3 ternary nanocomposites
IF 8.6 2区 工程技术
Sustainable Materials and Technologies Pub Date : 2025-03-02 DOI: 10.1016/j.susmat.2025.e01331
S. Vidhya , Yathavan Subramanian , J. Gajendiran , S. Gokul Raj , Bharath Sabarish V.C. , A. Durairajan , Minh Thang Le , Ukashat Mamudu , G. Ramesh Kumar , J. Kishor Kumar
{"title":"Methylene blue dye degradation characteristics of BiFeO3-graphene-LiNbO3 ternary nanocomposites","authors":"S. Vidhya ,&nbsp;Yathavan Subramanian ,&nbsp;J. Gajendiran ,&nbsp;S. Gokul Raj ,&nbsp;Bharath Sabarish V.C. ,&nbsp;A. Durairajan ,&nbsp;Minh Thang Le ,&nbsp;Ukashat Mamudu ,&nbsp;G. Ramesh Kumar ,&nbsp;J. Kishor Kumar","doi":"10.1016/j.susmat.2025.e01331","DOIUrl":"10.1016/j.susmat.2025.e01331","url":null,"abstract":"<div><div>BiFeO<sub>3</sub>-Graphene-LiNbO<sub>3</sub> ternary nanocomposites has been synthesized using wet chemical method for the first time. The existence of ternary entities chosen for the preparation of composite matrix has been ascertained from the conventional analytical tools like XRD, SEM &amp; TEM, XPS and Raman measurements. Addition of ABO<sub>3</sub> type dielectric materials namely BiFeO<sub>3</sub> and LiNbO<sub>3</sub> over graphene matrix found have improved the photocatalytic behaviour of synthesized ternary composites, especially in degrading methylene blue effluent within 120 min for the graphene loaded sample with a concentration of 0.025 and exhibits maximum degradation efficiency of 88 % over the other graphitic concentrations studied. Hence, this study indicates that the optimum concentration of graphene required for enhancing methylene blue dye degradation in similar intervals of time stands at 0.025 for BiFeO<sub>3</sub>-Graphene-LiNbO<sub>3</sub> photocatalyst. The other studies substantiating the present conclusive evidence is also appended in this work.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"44 ","pages":"Article e01331"},"PeriodicalIF":8.6,"publicationDate":"2025-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143580340","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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