Materials Today Sustainability最新文献

Zinc oxide and its engineered derivative nanomaterials: Insight into energy, environmental, medical, agricultural, and food applications 氧化锌及其工程衍生物纳米材料：能源、环境、医疗、农业和食品应用透视

IF 7.1 3区材料科学

Materials Today Sustainability Pub Date : 2024-11-19 DOI: 10.1016/j.mtsust.2024.101051

Gemechu Fikadu Aaga

{"title":"Zinc oxide and its engineered derivative nanomaterials: Insight into energy, environmental, medical, agricultural, and food applications","authors":"Gemechu Fikadu Aaga","doi":"10.1016/j.mtsust.2024.101051","DOIUrl":"10.1016/j.mtsust.2024.101051","url":null,"abstract":"<div><div>Zinc oxide and zinc oxide-based nanomaterials are among the top materials in the fields of nanomaterials applications. On the other hand, the current global challenge of providing sustainable energy, a safe environment, well-improved medication, and sustainable agriculture, especially for developing countries, and safe food is becoming increasingly difficult for governments and scientists. In this review, the potential applications of ZnO and ZnO-based nanomaterials in the energy, environmental, medical, agricultural, and food fields were explored. These nanomaterials have been reported to be important materials for energy storage, conversion, harvesting, and efficient solar cell material, while their efficiency and stability can be triggered by doping or compositing them with another material. Their application in pollutant elimination as a photocatalyst, electrocatalyst, and adsorbent has been reported to be promising, while the material regeneration and reuse in this field still need intensive investigation. The various study findings indicated that they are highly applicable in medicine as a drug, drug targeting materials, catalysts in drug synthesis, and efficient antimicrobials. ZnO and its derivative nanomaterials have also been explored and found to be potential fertilizers in agriculture, especially as a source of Zn, while also improving the effective use of other fertilizers through the slow-release technique. In addition, the different study findings showed that they can be used as food packaging materials and also extend the shelf life of food. The results of this study indicate that ZnO and its engineered derivative nanomaterials are promising materials for future renewable energy, safe environments, improved medication, agriculture, and food industries.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":"28 ","pages":"Article 101051"},"PeriodicalIF":7.1,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142703045","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}

引用次数: 0

Corrigendum to ‘Optimization of transition metal sulfide through sputtered transition metal nitride thin film for hybrid supercapacitors’ [25, 100680] 通过溅射过渡金属氮化物薄膜优化用于混合超级电容器的过渡金属硫化物 "的更正 [25, 100680]

IF 7.1 3区材料科学

Materials Today Sustainability Pub Date : 2024-11-19 DOI: 10.1016/j.mtsust.2024.101046

Muhammad Zahir Iqbal , Asma Khizar , Misbah Shaheen , Rashid Ali , Zubair Ahmad , Saikh Mohammad Wabaidur

引用次数: 0

Recent insights on Z-scheme and S-scheme photocatalysts for nitrogen conversion to ammonia: A review 关于氮转化为氨的 Z 型和 S 型光催化剂的最新见解：综述

IF 7.1 3区材料科学

Materials Today Sustainability Pub Date : 2024-11-17 DOI: 10.1016/j.mtsust.2024.101043

Khadijeh Pournemati, Aziz Habibi-Yangjeh

{"title":"Recent insights on Z-scheme and S-scheme photocatalysts for nitrogen conversion to ammonia: A review","authors":"Khadijeh Pournemati, Aziz Habibi-Yangjeh","doi":"10.1016/j.mtsust.2024.101043","DOIUrl":"10.1016/j.mtsust.2024.101043","url":null,"abstract":"<div><div>One of the main research hot spots of the present century is the design and development of technologies for producing ammonia with minimal environmental impacts and energy-efficient procedures. Recently, the utilization of heterogeneous photocatalysts for nitrogen fixation has attracted the booming opinion of researchers, as it is a practical, environmentally friendly, and sustainable approach for ammonia synthesis. Integrating two or more semiconductors and developing heterojunctions with Z/S-scheme mechanism is a suitable solution for promoting the photocatalytic nitrogen fixation efficiency. The Z/S-scheme photocatalysts could effectually improve the segregation of charges, retain the reducing/oxidizing power of electrons/holes, and significantly boost harvesting of the solar energy. Therefore, the overall objective of this review is to provide an overview of recent research papers on Z/S-scheme photocatalytic systems and to establish a strong foundation to ensure successful progress in the promising field of nitrogen fixation research. Hence, the detailed reaction mechanism with Z/S-scheme systems, charge kinetics, and reaction pathways are highlighted. Moreover, the structural/electronic features, synthesis routes, and photocatalytic performance in the nitrogen fixation are summarized. The challenges in the arena and perspectives on the future progress of photocatalytic nitrogen fixation are introduced too. This review provide an extensive and inspiring picture for the rationally designing impressive Z/S-scheme photocatalysts for production of ammonia in large scale.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":"28 ","pages":"Article 101043"},"PeriodicalIF":7.1,"publicationDate":"2024-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142703043","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}

引用次数: 0

Study on corrosion resistance and microstructure of modified sediment geopolymer materials 改性沉积土工聚合物材料的耐腐蚀性和微观结构研究

IF 7.1 3区材料科学

Materials Today Sustainability Pub Date : 2024-11-15 DOI: 10.1016/j.mtsust.2024.101048

Changming Li , Huilin Liu , Xiaoxiong Chai , Dongyang Jia , Yaozong Wang , Hui Liu , Xudong Yang , Guanfeng Liu , Wanjiao Li

{"title":"Study on corrosion resistance and microstructure of modified sediment geopolymer materials","authors":"Changming Li , Huilin Liu , Xiaoxiong Chai , Dongyang Jia , Yaozong Wang , Hui Liu , Xudong Yang , Guanfeng Liu , Wanjiao Li","doi":"10.1016/j.mtsust.2024.101048","DOIUrl":"10.1016/j.mtsust.2024.101048","url":null,"abstract":"<div><div>Utilizing sediment to manufacture geopolymer materials by alkali-activated modification is an eco-friendly and economical strategy. Investigating its corrosion resistance properties is crucial for enhancing the durability and structural stability of the materials and is the key to promoting their widespread application. In this paper, the combined effects of modifiers, mineral admixtures, and corrosion conditions on the corrosion resistance, mechanical strength, and microstructure of modified sediment geopolymer materials were thoroughly investigated. The mechanical properties of materials were evaluated by universal press, and the mineral composition and microstructure of the materials were analyzed by XRD, SEM and TG. The results reveal that the strength of the modified sediment material are significantly improved. The highest compressive strength of the modified sediment samples reached 15.84 MPa, which was much higher than that of the modified sediment samples without additives. The optimum softening coefficient of the sample is 0.79, and its water resistance is exceptional. The highest compressive strength reaches 15.04 MPa and 14.43 MPa respectively in acid and alkali environment, and its corrosion resistance is better than that of sediment materials without additives. The microstructure analyzed clearly indicated that the C–S–H gels, as the main hydration products, effectively promoted the close bonding of the sediment particles and filled the pores and microcracks inside the specimens, which significantly enhanced the strength and corrosion resistance of the material.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":"29 ","pages":"Article 101048"},"PeriodicalIF":7.1,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142659488","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}

引用次数: 0

Cu-Bi2S3 nanorods promote reactive oxygen species production for photodynamic therapy of prostate cancer 铜-Bi2S3 纳米棒促进活性氧生成，用于前列腺癌的光动力疗法

IF 7.1 3区材料科学

Materials Today Sustainability Pub Date : 2024-11-14 DOI: 10.1016/j.mtsust.2024.101047

Jiacheng Ling , Rongrong Gu , Junchao Wu , Hualong Li , Yuanxi Lin , Yang Hou , Xiaoyi Huang , Ruixi Chu , Tao Xu , Sheng Ye , Song Fan

{"title":"Cu-Bi2S3 nanorods promote reactive oxygen species production for photodynamic therapy of prostate cancer","authors":"Jiacheng Ling , Rongrong Gu , Junchao Wu , Hualong Li , Yuanxi Lin , Yang Hou , Xiaoyi Huang , Ruixi Chu , Tao Xu , Sheng Ye , Song Fan","doi":"10.1016/j.mtsust.2024.101047","DOIUrl":"10.1016/j.mtsust.2024.101047","url":null,"abstract":"<div><div>Photodynamic therapy (PDT) has emerged as a promising cancer treatment approach due to its non-invasive and specifically targeted nature. However, the effectiveness of PDT is hindered by the complex synthesis of conventional photosensitizers and inadequate reactive oxygen species (ROS) generation. Here, we synthesize a copper-doped Bi<sub>2</sub>S<sub>3</sub> (Cu-Bi<sub>2</sub>S<sub>3</sub>) nanorod to investigate its PDT potential against PCa. Compared with bulk Bi<sub>2</sub>S<sub>3</sub> (58%), Cu-Bi<sub>2</sub>S<sub>3</sub> nanorod caused 87% of PC3 cells to die under light. The dispersed Cu in the Bi<sub>2</sub>S<sub>3</sub> bulk phase effectively inhibits the recombination of photogenerated electron-hole pairs, ultimately providing a high concentration of charge carriers. DFT calculations show that Cu doping causes the d-band center of Cu-Bi<sub>2</sub>S<sub>3</sub>, promoting the adsorption and activation of O<sub>2</sub> on Cu-Bi<sub>2</sub>S<sub>3</sub> to enhance ROS generation. This work offers a viable solution to the pressing scientific challenge of ROS generation, a key aspect of enhancing the efficacy of PDT for cancer treatment.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":"28 ","pages":"Article 101047"},"PeriodicalIF":7.1,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142663758","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}

引用次数: 0

The interfacial charge change enhanced by Pr0.6Sm0.4Co0·8Mn0·2O3 activated peroxymonosulfate was used for the efficient degradation of tetracycline under the nanoscale domain limiting and distance effect 在纳米尺度畴限制和距离效应下，Pr0.6Sm0.4Co0-8Mn0-2O3活化过硫酸盐增强的界面电荷变化被用于高效降解四环素

IF 7.1 3区材料科学

Materials Today Sustainability Pub Date : 2024-11-12 DOI: 10.1016/j.mtsust.2024.101044

Xiayan Zhang , Zhi Song , Boxia Liu , Bofei Liu , Jialu Liu , Jinrong Lu , Cheng Li , Yeqiong Huang , Dongxu Han , Jingjing Yang , Hua Liu

{"title":"The interfacial charge change enhanced by Pr0.6Sm0.4Co0·8Mn0·2O3 activated peroxymonosulfate was used for the efficient degradation of tetracycline under the nanoscale domain limiting and distance effect","authors":"Xiayan Zhang , Zhi Song , Boxia Liu , Bofei Liu , Jialu Liu , Jinrong Lu , Cheng Li , Yeqiong Huang , Dongxu Han , Jingjing Yang , Hua Liu","doi":"10.1016/j.mtsust.2024.101044","DOIUrl":"10.1016/j.mtsust.2024.101044","url":null,"abstract":"<div><div>In this work, an improved sol-gel method was used to prepare a series of Co-infused PrSmMnO<sub>3</sub> perovskites (Pr<sub>0.6</sub>Sm<sub>0.4</sub>Co<sub>1-X</sub>Mn<sub>X</sub>O<sub>3</sub>, PSCM) to rapidly activate peroxymonosulfate (PMS) for efficient degradation of tetracycline (TC). The experimental results showed that the degradation efficiency of the PSCM-82/PMS system for TC in the pH 2–11 range was close to 100%. The nanoscale domain-limiting and distance effect of PSCM under different activators were discussed, and the catalytic mechanism of the non-radical electron transfer pathway in the PSCM-82/PMS system was proposed. After the optimization of the DFT calculation, it can be seen that the <em>d</em><sub>Co-Mn-Co</sub> range of the PSCM-82 material is 9.8–9.9 Å. The molecular size of PMS is 9.9 Å, which precisely matches the <em>d</em><sub>Co-Mn-Co</sub> range of the material. Moreover, the distance between molecular sizes was relatively minimal, and the interface charge transfer was enhanced by both the confinement and distance effects. This promotes a fast catalytic reaction and an optimal degradation rate. During this process, PMS molecules were adsorbed by the active metal sites on the surface of PSCM-82, resulting in a large amount of interfacial charge transfer. This allows a strong coupling between the PMS and the catalyst, resulting in a reaction surface with high redox potential. According to the results of density functional theory (DFT) calculation, quenching experiment, electron paramagnetic resonance (EPR) experiment and electrochemical research, it can be concluded that the main degradation pathway of TC is realized through the direct electron transfer process.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":"28 ","pages":"Article 101044"},"PeriodicalIF":7.1,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142663755","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}

引用次数: 0

Transition metal atoms embedded graphyne as effective catalysts for nitrate electroreduction to ammonia: A theoretical study 嵌入石墨烯的过渡金属原子是硝酸盐电还原成氨的有效催化剂：理论研究

IF 7.1 3区材料科学

Materials Today Sustainability Pub Date : 2024-11-12 DOI: 10.1016/j.mtsust.2024.101045

Donghui Zhang, Jingwei Liu, Jingxiang Zhao

{"title":"Transition metal atoms embedded graphyne as effective catalysts for nitrate electroreduction to ammonia: A theoretical study","authors":"Donghui Zhang, Jingwei Liu, Jingxiang Zhao","doi":"10.1016/j.mtsust.2024.101045","DOIUrl":"10.1016/j.mtsust.2024.101045","url":null,"abstract":"<div><div>Electrocatalytic nitrate reduction reaction (NO<sub>3</sub>RR) to ammonia has been proved to be a viable approach to dispose of nitrates pollution and simultaneously fabricate valuable ammonia at room temperature and pressure. It is essential to explore high-performance and selective electrocatalysts for NO<sub>3</sub>RR to overcome the sluggish kinetics. Herein, through adopting a four-step screening route based upon the calculation of density functional theory (DFT), we have performed a comprehensive investigation on the NO<sub>3</sub>RR catalytic activities for single-atom catalysts (SACs), taking transition metal atom embedded graphyne (TM-GY, TM = 3d ∼ 5d) as example. The computation results show that the electrochemical conversion of nitrate-to-ammonia can be realized on Cr-GY candidate with an extremely low limiting potential (−0.36 V) and high selectivity, which can be ascribed to the moderate adsorption strength between the intermediate species and Cr atom derived from its distinct electronic property. Our study not only reveals the NO<sub>3</sub>RR catalytic origin of TM-GY, but also provides a new route for the rational design of electrocatalysts for nitrate reduction to ammonia.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":"28 ","pages":"Article 101045"},"PeriodicalIF":7.1,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142663756","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}

引用次数: 0

Synthesis of biobased poly(ether-ester) from potentially bioproduced betulin and p-coumaric acid 利用潜在生物生产的白桦脂素和对香豆酸合成生物基聚醚酯

IF 7.1 3区材料科学

Materials Today Sustainability Pub Date : 2024-11-07 DOI: 10.1016/j.mtsust.2024.101039

Théo Guérin, Eric Pollet, Luc Avérous

{"title":"Synthesis of biobased poly(ether-ester) from potentially bioproduced betulin and p-coumaric acid","authors":"Théo Guérin, Eric Pollet, Luc Avérous","doi":"10.1016/j.mtsust.2024.101039","DOIUrl":"10.1016/j.mtsust.2024.101039","url":null,"abstract":"<div><div>For a more sustainable future, innovative polymer materials synthesized from biobased molecules are currently a key trend, in the frame of the bioeconomy. In this study, new renewable macromolecular architectures poly(ether-esters) has been synthesized from betulin and <em>para</em>-coumaric acid, two plant-based building blocks, poorly valorized till now, and potentially bioproduced by white biotechnologies. To date, these are the first synthesized polymers with such a reported architecture. In a first step, different chemical modifications were carried out on these biomolecules to increase their reactivities. Betulin hydroxyl groups were esterified with aliphatic acids of carbon chain lengths C6, C8 and C10 terminated by a bromine, with good yields (79–85%). <em>P</em>-coumaric acid was dimerized by [2 + 2] cycloaddition, and then esterified with ethanol, butanol or isobutanol with excellent yields (92–96%). These modified building blocks were finally copolymerized by Williamson polyetherification reaction, leading to various analogous materials with molar masses ranging from 9700 to 15500 g mol<sup>−1</sup>. Different thermal characterizations have been then performed. TGA results show that these poly(ether-esters) displayed high thermal stabilities (up to 336 °C). Besides, DSC analyses revealed T<sub>g</sub> ranging from 38 to 81 °C, depending on the length of the aliphatic carbon chain and the nature of the pendant ester groups for a large range of potential applications.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":"29 ","pages":"Article 101039"},"PeriodicalIF":7.1,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142659487","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Recent advances in transition metal-based photocatalytic heterojunctions for algal inhibition and water disinfection: A review 用于抑制藻类和水消毒的过渡金属基光催化异质结的最新进展：综述

IF 7.1 3区材料科学

Materials Today Sustainability Pub Date : 2024-11-07 DOI: 10.1016/j.mtsust.2024.101041

Yaksha Verma , Gaurav Sharma , Jibran Iqbal , Mu. Naushad , Chin Wei Lai , Amit Kumar , Pooja Dhiman , Ackmez Mudhoo

{"title":"Recent advances in transition metal-based photocatalytic heterojunctions for algal inhibition and water disinfection: A review","authors":"Yaksha Verma , Gaurav Sharma , Jibran Iqbal , Mu. Naushad , Chin Wei Lai , Amit Kumar , Pooja Dhiman , Ackmez Mudhoo","doi":"10.1016/j.mtsust.2024.101041","DOIUrl":"10.1016/j.mtsust.2024.101041","url":null,"abstract":"<div><div>Sustainable energy production and effective water pollution control are critical global priorities. Harmful algal blooms (HABs) and waterborne pathogens pose significant threats to water quality and public health, necessitating efficient and eco-friendly treatment methods. Transition metal-based photocatalytic heterojunctions offer promising solutions by leveraging the unique properties of transition metals to enhance photocatalytic efficiency. This review examines recent advances in these heterojunctions employed for algal inhibition and water disinfection, discussing various heterojunction type (including conventional, p-n, Z-scheme, <em>S</em>-scheme, and Schottky heterojunctions), and their synthesis methods. We elucidate the mechanisms involved, highlighting improved electron transfer, reduced recombination rates, and broadened light absorption. Recent studies on their effectiveness in inhibiting harmful algae and disinfecting water are also reviewed. Current challenges and future research directions to optimize these materials are identified. This is a first comprehensive overview focusing on the contributions of transition metals in photocatalytic heterojunctions for water treatment, aiming to support the development of sustainable technologies.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":"28 ","pages":"Article 101041"},"PeriodicalIF":7.1,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142663757","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}

引用次数: 0

Selective growth of Nb–Fe–B intermetallic compounds for the direct separation of rare earths based on manipulating liquation 基于操纵液化的 Nb-Fe-B 金属间化合物的选择性生长，用于稀土的直接分离

IF 7.1 3区材料科学

Materials Today Sustainability Pub Date : 2024-11-06 DOI: 10.1016/j.mtsust.2024.101042

Sangmin Park , Jaeyun Jeong , Seunghun Cha , Yoonhyung Keum , Ju-Young Cho , Hyungbeen Park , Taek-Soo Kim , Dae-Kyeom Kim , Myungsuk Song

{"title":"Selective growth of Nb–Fe–B intermetallic compounds for the direct separation of rare earths based on manipulating liquation","authors":"Sangmin Park , Jaeyun Jeong , Seunghun Cha , Yoonhyung Keum , Ju-Young Cho , Hyungbeen Park , Taek-Soo Kim , Dae-Kyeom Kim , Myungsuk Song","doi":"10.1016/j.mtsust.2024.101042","DOIUrl":"10.1016/j.mtsust.2024.101042","url":null,"abstract":"<div><div>Since the primary goal of industrialization has changed to carbon neutrality, the importance of rare earths (REs) has increased due to their criticality in green industries. The attainment of sustainable resources via green production processes is necessary due to the increasing need for REs. Liquid metal extraction is regarded as a leading technology for supporting the sustainability of resources based on the selective reactivity between REs and extractants. However, this process requires multiple stages, including pretreatment, extraction and separation, which are considered bottlenecks in industrialization. In this work, reverse selectivity is applied instead of conventional liquid metal extraction (c-LME) for the direct separation of REs in a single stage. Niobium (Nb) is selected because of its thermodynamic properties for enhancing the selectivity of the reactions between the extractant and other elements, excluding REs. The process is thermodynamically designed for liquation systems, and it reflects the interactions between the extractant and magnets. The solidification behavior based on the selective growth of phases without REs is shown with variations in the composition and cooling rate to confirm the kinetics. The composition prevents the formation of RE-Fe intermetallic compounds, and excess Nb is considered a bottleneck for separating REs. In addition, the cooling rate influences the agglomeration of RE as a layer. Because of the manipulation of the liquation, 92.89% of the REs are successfully separated in the form of accumulated layers. This effective process for the direct separation of REs is verified through thermodynamic and experimental assessments. Overall, this investigation can provide new guidelines for the construction of a circular economy after improving the energy efficiency of this system in future research.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":"28 ","pages":"Article 101042"},"PeriodicalIF":7.1,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142703040","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}

引用次数: 0