Sustainable Materials and Technologies最新文献

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Highly efficient treatment of complex uranium-organic wastewater via a self-driven photoelectrochemical system with TNR/Si PVC photoanode and nickel foam cathode
IF 8.6 2区 工程技术
Sustainable Materials and Technologies Pub Date : 2025-01-19 DOI: 10.1016/j.susmat.2025.e01251
Xijun Fu, Lu Song, Yuyan Wu, Qingyan Zhang, Rongzhong Wang, Qingsong Zhang, Junwen Lv, Qingyi Zeng
{"title":"Highly efficient treatment of complex uranium-organic wastewater via a self-driven photoelectrochemical system with TNR/Si PVC photoanode and nickel foam cathode","authors":"Xijun Fu,&nbsp;Lu Song,&nbsp;Yuyan Wu,&nbsp;Qingyan Zhang,&nbsp;Rongzhong Wang,&nbsp;Qingsong Zhang,&nbsp;Junwen Lv,&nbsp;Qingyi Zeng","doi":"10.1016/j.susmat.2025.e01251","DOIUrl":"10.1016/j.susmat.2025.e01251","url":null,"abstract":"<div><div>This study introduces an eco-friendly, self-driven photoelectrochemical system (SDPS) capable of synergistically achieving 99.4 % UO<sub>2</sub><sup>2+</sup> recovery and 97.7 % tetracycline hydrochloride (TCH) removal, while generating a maximum power output density (<em>P</em><sub>max</sub>) of approximately 580 μW/cm<sup>2</sup> using only sunlight. This SDPS employs a TiO<sub>2</sub> nanorod array (TNR) film to absorb short wavelength light (λ &lt; 412 nm) generating electron-hole pairs. Meanwhile, the rear Si photovoltaic cell (Si PVC) absorbs longer wavelengths, creating a self-bias potential that enhances electron-hole separation and drives electrons towards the 3D cross-linked nickel foam (NF) cathode, continuously generating electrical energy in the external circuit. The retained holes and derived •OH with high redox potential can oxidize TCH, breaking UO<sub>2</sub><sup>2+</sup>-TCH complexation, while electrons reduce dissolved UO<sub>2</sub><sup>2+</sup> to insoluble UO<sub>2</sub> by 88.5 %, and anchored on the NF cathode. This SDPS demonstrates robust performance in various conditions, including high salinity and TCH concentrations, a wide range of pH levels, and different coexisting ions. Moreover, this SDPS exhibits remarkable versatility in treating various types of uranium-containing organic wastewater, maintaining exceptional performance under both real sunlight and simulated seawater conditions, with only a slight performance decline observed after 20 cycles of use. This innovative resource treatment strategy overcomes the issues with stable uranium-organic complexes, catalyst recovery, and the need for sacrificial agents, offering a robust solution for extracting uranium, environmental preservation and sustainable nuclear energy development.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"43 ","pages":"Article e01251"},"PeriodicalIF":8.6,"publicationDate":"2025-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143137924","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
An eco-friendly, sodium alginate degradable conformal triboelectric nanogenerator for self-powered sensing and real-time injury monitoring
IF 8.6 2区 工程技术
Sustainable Materials and Technologies Pub Date : 2025-01-19 DOI: 10.1016/j.susmat.2025.e01262
Qingyang Feng , Zhenning Xie , Yuzhang Wen , Zihang Cheng , Mengqi Zhang , Yunlu Wang , Dongsheng Liu , Yecheng Cao , Yupeng Mao , Chongle Zhao
{"title":"An eco-friendly, sodium alginate degradable conformal triboelectric nanogenerator for self-powered sensing and real-time injury monitoring","authors":"Qingyang Feng ,&nbsp;Zhenning Xie ,&nbsp;Yuzhang Wen ,&nbsp;Zihang Cheng ,&nbsp;Mengqi Zhang ,&nbsp;Yunlu Wang ,&nbsp;Dongsheng Liu ,&nbsp;Yecheng Cao ,&nbsp;Yupeng Mao ,&nbsp;Chongle Zhao","doi":"10.1016/j.susmat.2025.e01262","DOIUrl":"10.1016/j.susmat.2025.e01262","url":null,"abstract":"<div><div>Sodium alginate (SA) is a natural polysaccharide extracted from the kelp or sargassum of brown algae that has been attracting the attention of researchers for its non-toxicity, water-solubility, biocompatibility and degradability. Based on the unique properties of sodium alginate, a conformal triboelectric nanogenerator (SG-TENG) has been successfully fabricated in this study, which can realize self-powered sensing and real-time injury monitoring. By adding a certain proportion of glycerol as a plasticizer to the sodium alginate solution, the flexibility and adhesion of the sodium alginate film are improved to facilitate the generation of triboelectric charges. The SG-TENG exhibits excellent electrical output performance with an open-circuit voltage of 49 V, a peak power of 108.8 μW and a fast response time of 86 ms, which can be sufficient powered small electronic devices. More importantly, the application of SG-TENG for knee injury monitoring not only realizes the real-time tracking of knee joint movement status but also provides early warning of potential injuries. Combined with advanced narrow neural network technology for in-depth analysis of knee motion data, the accuracy of sensing signal recognition reached 97.96 %. It provides valuable data support for the treatment and rehabilitation of knee osteoarthritis, which can help enhance the therapeutic effect and improve the quality of life of patients' lives. This study not only provides new ideas for the development of degradable and eco-friendly TENG based on marine plants, but also demonstrates a great potential of SG-TENG in the field of real-time monitoring of human injuries, which opens up a new path for future health monitoring technology.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"43 ","pages":"Article e01262"},"PeriodicalIF":8.6,"publicationDate":"2025-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143137386","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
Reinforcing silicate glass with waste lead and cadmium batteries to be used as shielding materials for gamma rays and thermal neutrons
IF 8.6 2区 工程技术
Sustainable Materials and Technologies Pub Date : 2025-01-19 DOI: 10.1016/j.susmat.2025.e01257
Dalal Abdullah Aloraini , W.A. Abu-raia , Aly Saeed
{"title":"Reinforcing silicate glass with waste lead and cadmium batteries to be used as shielding materials for gamma rays and thermal neutrons","authors":"Dalal Abdullah Aloraini ,&nbsp;W.A. Abu-raia ,&nbsp;Aly Saeed","doi":"10.1016/j.susmat.2025.e01257","DOIUrl":"10.1016/j.susmat.2025.e01257","url":null,"abstract":"<div><div>Safe recycling of waste is one of the most effective solutions for preserving the environment, saving raw material resources, and reducing wealth consumption. Accordingly, in this article, lead (Pb) extracted from spent lead-acid batteries (SLAB) and the cadmium (Cd) extracted from spent nickel‑cadmium batteries (SNiCdB)were recycled into a host glass network to enhance its ability to attenuate gamma rays and thermal neutrons, making it suitable as a multifunctional shield. A pure host network of sodium calcium silicate glass (SCSPbCd0) was prepared and simultaneously reinforced with Pb and Cd. The produced glasses were labeled as SCSPbCd1 (containing 10 and 5 wt% of Pb and Cd), SCSPbCd2 (containing 20 and 10 wt% of Pb and Cd), and SCSPbCd3 (containing 30 and 15 wt% of Pb and Cd). The chemical analysis, structural properties, and optical properties confirmed the successful recycling of extracted Pb and Cd within the proposed SCSPbCd0 glass network. Although not targeted in the current study, high concentrations of Ni were detected in the glasses, which surely accompanied the extracted Cd. Reinforcing the silicate glass network with the extracted Pb, Cd, and Ni significantly improved the attenuation ability for gamma rays of energies of 661.64, 1173.23, and 1332.51 keV. The half value layer of the produced SCSPbCd3 glass, which contained the highest concentration of Pb, Cd, and Ni (28.52, 14.88, and 8.11 wt%), was reduced by 81.88 %, 77.272 %, and 76.794 % for 661.64, 1173.23, and 1332.51 keV, respectively. A significant improvement in the thermal neutrons attenuation performance was observed in the proposed host glass network due to its reinforcement with Cd, as the cross-section largely increased by 10,374 % in the SCSPbCd3 glass. Accordingly, glass materials are suitable media for recycling the SLAB and SNiCdB and their components can be used to enhance the glass properties. The recycling of extracted Pb, Cd, and Ni from these batteries has improved the attenuation capabilities, producing effective shields against neutrons and gamma rays.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"43 ","pages":"Article e01257"},"PeriodicalIF":8.6,"publicationDate":"2025-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143137825","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
In-situ tailored hierarchical structures of high-mass-loading hydroxide electrode for superior areal performance supercapacitors
IF 8.6 2区 工程技术
Sustainable Materials and Technologies Pub Date : 2025-01-19 DOI: 10.1016/j.susmat.2025.e01258
Min Lu , Jiahui Liang , Fenyun Yi , Yuxiao Zhang , Tao Meng , Aimei Gao , Dong Shu
{"title":"In-situ tailored hierarchical structures of high-mass-loading hydroxide electrode for superior areal performance supercapacitors","authors":"Min Lu ,&nbsp;Jiahui Liang ,&nbsp;Fenyun Yi ,&nbsp;Yuxiao Zhang ,&nbsp;Tao Meng ,&nbsp;Aimei Gao ,&nbsp;Dong Shu","doi":"10.1016/j.susmat.2025.e01258","DOIUrl":"10.1016/j.susmat.2025.e01258","url":null,"abstract":"<div><div>Designing a high-mass-loading electrode and settling its insufficient stability/low conductivity are urgently needed for the practical application of supercapacitors. Here, MOF-74 with different <em>Z</em>-axis dimensions is assembled by adjusting ligand concentration strategy at the molecular level, followed by an in-situ ion exchange process to fabricate a hierarchically structured Ni(OH)<sub>2</sub>/Co(OH)<sub>2</sub> on self-supporting nickel foam (NiCo-NF), reaching an ultra-high mass loading and areal capacitance. The obtained self-supporting NiCo-NF presents a typical 3D hollow structure constituted by 2D ultrathin nanolayers, which can expose the abundant phase interface and a greater number of active sites, leading to an improvement in the utilization efficiency and electrochemical stability of the high-loading electrode. Theoretical calculations and simulations demonstrate that the re-adjustment of charge distribution at the abundant interface effectively promotes charge transfer and enhances electrode reaction kinetics. The high-loading H-NiCo-NF electrode (∼ 23.3 mg cm<sup>−2</sup>) delivers remarkable capacitance (53.6 F cm<sup>−2</sup> at 1 mA cm<sup>−2</sup>), and the M-NiCo-NF electrode (∼ 11.7 mg cm<sup>−2</sup>) shows the considerable capacitance (27.2 F cm<sup>−2</sup> at 1 mA cm<sup>−2</sup>) and structural stability (81.1 % after 7000 cycles). The assembled asymmetric supercapacitor devices show an enhanced OH<sup>−</sup> storage capability (1.1 mWh cm<sup>−2</sup> and 64.0 mW cm<sup>−2</sup>). Such a functional hierarchical structure of hydroxide shows a new perspective for high areal capacitance self-supported supercapacitors.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"43 ","pages":"Article e01258"},"PeriodicalIF":8.6,"publicationDate":"2025-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143137926","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
One-stone-for-two-birds strategy for upcycling plastic wastes into high-value-added medical consumables via the dip-coating technique
IF 8.6 2区 工程技术
Sustainable Materials and Technologies Pub Date : 2025-01-17 DOI: 10.1016/j.susmat.2025.e01261
Min-Hsuan Lee , Bo Hou
{"title":"One-stone-for-two-birds strategy for upcycling plastic wastes into high-value-added medical consumables via the dip-coating technique","authors":"Min-Hsuan Lee ,&nbsp;Bo Hou","doi":"10.1016/j.susmat.2025.e01261","DOIUrl":"10.1016/j.susmat.2025.e01261","url":null,"abstract":"<div><div>With the increase in polypropylene-based medical plastic waste (e.g., disposable single-use face masks) over the past few years (especially for the COVID-19 crisis), the innovative technologies for converting medical plastic waste into high-value medical consumables have attracted more attention in the reduction of environmental pollution and the provision of digital healthcare. This research explores the potential of polypropylene substrates extracted from disposable single-use face masks to highly flexible and wearable Electrocardiogram (ECG) electrodes. Multi-wall carbon nanotubes (MWCNTs), the emerging carbon-based nanomaterials, were used as high-potential electrical conductors due to their solution-processability and flexible nature to integrate with foldable polypropylene substrates, further leading to outstanding electrical performance (e.g., the sheet resistance of MWCNT-coated polypropylene composite electrode as low as 4.4 Ω/sq). In addition, ECG hybrid electrodes made of polypropylene substrates densely coated with MWCNT materials exhibited unexpected stability in commercial ECG devices. Such functional MWCNT-coated polypropylene composites as electrode materials display low sheet resistance, good flexibility, and high-quality ECG signals. We believe that this promising attempt may pave the way for simultaneously solving the plastic pollution crisis and developing flexible electronic textiles.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"43 ","pages":"Article e01261"},"PeriodicalIF":8.6,"publicationDate":"2025-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143137477","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
Emerging subfamilies of MXenes: Modification of M and X sites
IF 8.6 2区 工程技术
Sustainable Materials and Technologies Pub Date : 2025-01-16 DOI: 10.1016/j.susmat.2025.e01254
Sandhya Venkateshalu , S.R. Sitaaraman , Johnny Koh Siaw Paw , Sharifah Mohamad
{"title":"Emerging subfamilies of MXenes: Modification of M and X sites","authors":"Sandhya Venkateshalu ,&nbsp;S.R. Sitaaraman ,&nbsp;Johnny Koh Siaw Paw ,&nbsp;Sharifah Mohamad","doi":"10.1016/j.susmat.2025.e01254","DOIUrl":"10.1016/j.susmat.2025.e01254","url":null,"abstract":"<div><div>Since the discovery of Ti<sub>3</sub>C<sub>2</sub> in 2011, the family of MXenes expanded tremendously and is now acclaimed to be the fastest-growing family of 2D materials. Their huge compositional design space allows for the frequent addition of new members with unique properties. By altering the parameters in M<sub><em>n</em>+1</sub>X<sub><em>n</em></sub>T<sub><em>x</em></sub>, innumerable compositions can be achieved, enabling the tailoring of properties for specific applications<em>.</em> Modifying the M and X sites of MXenes has led to new subfamilies over the last decade, including double transition metal MXenes, high-entropy MXenes, and oxycarbide MXenes, all of which exhibit the potential to outperform the conventional MXenes in various applications. This review provides a comprehensive overview of the latest MXene subfamilies, emphasizing their structure, properties, and applications while addressing current challenges and future research directions in this burgeoning field.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"43 ","pages":"Article e01254"},"PeriodicalIF":8.6,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143137474","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
From field to function: Exploring the versatility of alfa plant and its bio-derived materials for sustainable solutions
IF 8.6 2区 工程技术
Sustainable Materials and Technologies Pub Date : 2025-01-16 DOI: 10.1016/j.susmat.2025.e01255
Meriem Kasbaji , Mehdi Mennani , Lamiae Oulbaz , Mustapha Oubenali , Amine Moubarik , Houssine Sehaqui , Mouad Dahbi , Zineb Kassab , Mounir El Achaby
{"title":"From field to function: Exploring the versatility of alfa plant and its bio-derived materials for sustainable solutions","authors":"Meriem Kasbaji ,&nbsp;Mehdi Mennani ,&nbsp;Lamiae Oulbaz ,&nbsp;Mustapha Oubenali ,&nbsp;Amine Moubarik ,&nbsp;Houssine Sehaqui ,&nbsp;Mouad Dahbi ,&nbsp;Zineb Kassab ,&nbsp;Mounir El Achaby","doi":"10.1016/j.susmat.2025.e01255","DOIUrl":"10.1016/j.susmat.2025.e01255","url":null,"abstract":"<div><div>Advancing the shift from fossil fuels to sustainable, biodegradable, and natural resources has become a pivotal focus within academic and industrial research, driving innovations for a greener future. In this context, Alfa Fiber (AF) stands out as one of the most abundant biomasses in the Mediterranean region, attracting significant interest across sectors such as packaging, effluent treatment, construction, aerospace, and automotive due to its availability, biodegradability, and eco-friendly properties. Additionally, this plant significantly contributes to the development and protection of the Mediterranean region against desertification. This review examines the diverse applications and potential of the Alfa plant (AP) (<em>Stipa tenacissima L.</em>) and its bio-based materials across different sectors. Abundant in Mediterranean regions, AP offers numerous opportunities for sustainable innovation given its unique features and versatility. We discuss the integration of AP and its derivatives, such as cellulose, lignin, and biochar, in areas ranging from agriculture and construction to energy production and environmental remediation. Our analysis focuses on the challenges and opportunities of using these materials, emphasizing the importance of green strategies to minimize environmental impact. Through comprehensive analysis, this work highlights AP functions and bio-derived materials in promoting sustainability across various sectors.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"43 ","pages":"Article e01255"},"PeriodicalIF":8.6,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143137472","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
Facile synthesis of TiO2 supported Pd nanoparticles for efficient photocatalytic CO2 reduction to CH4 with H2O
IF 8.6 2区 工程技术
Sustainable Materials and Technologies Pub Date : 2025-01-12 DOI: 10.1016/j.susmat.2025.e01247
Zhuoshen Huang , Shujuan Sun , Meng Ma , Yang Liu , Xinyu Zhong , Jun Chen , Fengyu Gao , Guangtong Hai , Xiubing Huang
{"title":"Facile synthesis of TiO2 supported Pd nanoparticles for efficient photocatalytic CO2 reduction to CH4 with H2O","authors":"Zhuoshen Huang ,&nbsp;Shujuan Sun ,&nbsp;Meng Ma ,&nbsp;Yang Liu ,&nbsp;Xinyu Zhong ,&nbsp;Jun Chen ,&nbsp;Fengyu Gao ,&nbsp;Guangtong Hai ,&nbsp;Xiubing Huang","doi":"10.1016/j.susmat.2025.e01247","DOIUrl":"10.1016/j.susmat.2025.e01247","url":null,"abstract":"<div><div>Photocatalytic reduction of CO<sub>2</sub> into high value-added products under mild conditions can not only effectively alleviate the greenhouse effect, but also generate valuable fuels such as CH<sub>4</sub>. Herein, by loading palladium nanoparticles (Pd NPs) on the surface of TiO<sub>2</sub> nanosheets (NS), the range of light absorption is expanded and the highly active sites are provided, which significantly improve the photocatalytic performance. When the sample with a Pd mass fraction of 3.75 wt% (Pd<sub>NPs</sub>/TiO<sub>2</sub>–2), the photocatalyst exhibits an exceptional selectivity of 95.29 % towards CH<sub>4</sub> production, with a yield of 28.5 μmol·g<sup>−1</sup>·h<sup>−1</sup> in pure water, surpassing the performance of Pd<sub>NPs</sub>/P25 by a factor of 2.39. Pd NPs efficiently widen the light absorption spectrum of TiO<sub>2</sub> via the localized surface plasmon resonance (LSPR) phenomenon, and act as an electron trap, facilitating the segregation and subsequent utilization of charge carriers. Furthermore, Pd NPs can promote the dissociation of water (H<sub>2</sub>O), inhibit the competitive reaction of hydrogen evolution, achieving high CH<sub>4</sub> yield and selectivity. Density functional theory (DFT) calculations show that Pd NPs reduce the energy barrier of the rate-limiting step in the CO<sub>2</sub> reduction process, and improve the reaction kinetic performance and CH<sub>4</sub> yield. This research introduces a novel concept for the advancement of highly efficient photocatalysts aimed at CO<sub>2</sub> reduction.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"43 ","pages":"Article e01247"},"PeriodicalIF":8.6,"publicationDate":"2025-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143137429","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 review on recycling seashells as aggregates and binders for mortar and concrete in China: Production, engineering properties and new applications
IF 8.6 2区 工程技术
Sustainable Materials and Technologies Pub Date : 2025-01-11 DOI: 10.1016/j.susmat.2025.e01242
Ziming Deng , Jinjia Lin , Ning Li
{"title":"A review on recycling seashells as aggregates and binders for mortar and concrete in China: Production, engineering properties and new applications","authors":"Ziming Deng ,&nbsp;Jinjia Lin ,&nbsp;Ning Li","doi":"10.1016/j.susmat.2025.e01242","DOIUrl":"10.1016/j.susmat.2025.e01242","url":null,"abstract":"<div><div>The increasing amount of seashell waste have become a large burden on China's coastal cities. Recycling discarded seashells as binders and aggregates for mortar and concrete is a promising solution. Chinese institutions have conducted extensive research on the performance of mortar and concrete made with seashell aggregates and binders. However, there is currently no comprehensive review that summarizes findings reported by Chinese institutions. This may hinder the engineering application of seashell mortar and concrete. Due to a lack of systematic review, engineers and designers lack a reference for using seashell mortar and concrete in engineering projects. To fill these gaps, this article reviews the literature published by Chinese institutions in the past decade on the substitution of discarded seashells for cement, fine aggregates, and coarse aggregates. Reduced flowability and mechanical properties and increased drying shrinkage are critical issues for seashell mortar and concrete. Adding superplasticizers can alleviate the reduction in flowability. Incorporating fibers and surface treatment of seashell aggregates can increase mechanical properties and reduce drying shrinkage. In recent years, new seashell mortar and concrete have been proposed, increasing their potential engineering applications. Using seashell powder can increase resistance to biological adhesion in reef concrete and extend its service life. Coarse seashell aggregates filled with polyurethane foam can be used to produce lightweight concrete members. Surface treatment of seashell aggregates with polyvinyl alcohol and sodium silicate solutions can alleviate the shortcomings of seashell aggregates and improve mechanical properties and durability so that this surface-modified seashell mortar and concrete can be applied in most areas. Superhydrophobic seashell mortar and concrete have good chloride resistance and are suitable for use in coastal areas. The following research gaps should be addressed in future research. The influence of seashell content on environmental benefits remains scarce. The influence of calcined seashell powder on the setting time of concrete should be fully understood in future research. The influence of fiber type on the tensile strength of seashell mortar and concrete remains unknown. The influence of surface treatment of seashell aggregates with polyvinyl alcohol and sodium silicate solutions remains unclear and should be investigated in future studies.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"43 ","pages":"Article e01242"},"PeriodicalIF":8.6,"publicationDate":"2025-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143137473","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
Advances and challenges of the spray drying technology: Towards accurately constructing inorganic multi-functional materials and related applications
IF 8.6 2区 工程技术
Sustainable Materials and Technologies Pub Date : 2025-01-11 DOI: 10.1016/j.susmat.2025.e01250
Shenghua Zhang , Guannan Gong , Huan Wang , Sen Chen , Jiangyan Wang , Jian Qi
{"title":"Advances and challenges of the spray drying technology: Towards accurately constructing inorganic multi-functional materials and related applications","authors":"Shenghua Zhang ,&nbsp;Guannan Gong ,&nbsp;Huan Wang ,&nbsp;Sen Chen ,&nbsp;Jiangyan Wang ,&nbsp;Jian Qi","doi":"10.1016/j.susmat.2025.e01250","DOIUrl":"10.1016/j.susmat.2025.e01250","url":null,"abstract":"<div><div>As an efficient, continuous and controllable particle preparation method, spray drying technology has shown unique advantages and broad application prospects in the synthesis and application of inorganic multi-functional materials. Through spray drying method, one can not only accurately regulate the composition and structure of material, but also can easily assemble nano-subunits into superstructures. This review first introduces the equipment composition and principle of spray drying technology. Subsequently, this review focused on the structure regulation and composition adjustment of inorganic multi-functional materials through spray drying technology. Finally, this review discusses the challenges and future development directions of spray drying in the preparation of inorganic multi-functional materials. Spray drying technology provides an efficient, flexible and controllable path for the synthesis of inorganic multi-functional materials. Its continuous technological innovation and application expansion will continue to promote the rapid development of related fields.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"43 ","pages":"Article e01250"},"PeriodicalIF":8.6,"publicationDate":"2025-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143137476","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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