Sustainable Materials and Technologies最新文献_第2页

Nano zero-valent iron-based technology for environmental remediation: Synthesis techniques and strategies to address limitations

IF 8.6 2区工程技术

Sustainable Materials and Technologies Pub Date : 2025-03-19 DOI: 10.1016/j.susmat.2025.e01362

Mian M. Ahson Aslam , Feng Gao , Taotao Sun , Guangquan Chen , Imran Ali , Changsheng Peng , Hsion-Wen Kuo

{"title":"Nano zero-valent iron-based technology for environmental remediation: Synthesis techniques and strategies to address limitations","authors":"Mian M. Ahson Aslam , Feng Gao , Taotao Sun , Guangquan Chen , Imran Ali , Changsheng Peng , Hsion-Wen Kuo","doi":"10.1016/j.susmat.2025.e01362","DOIUrl":"10.1016/j.susmat.2025.e01362","url":null,"abstract":"<div><div>Nano zero-valent iron (nZVI) is a promising technology for the remediation of both organic and inorganic pollutants in groundwater and wastewater. Despite its potential, there are several limitations of as-prepared nZVI particles, including surface passivation, agglomeration, reduced mobility, and reactivity in subsurface environments, as well as pH sensitivity. This comprehensive review aims to address these limitations by evaluating different nZVI production techniques in terms of their intrinsic properties, such as particle size and surface area, and their implications. Furthermore, practical limitations associated with as-prepared nZVI particles are described, and potential countermeasures are discussed. These countermeasures include pretreatment methods such as acid washing, hydrogen gas, liquid nitrogen activation, and coupling with weak magnetic force, as well as surface modification methods such as metal coupling, sulfidation, polymer, surfactant, and cellulose coating, emulsification, and support with other adsorbent materials. The review also provides examples of pilot-scale and field-scale applications of nZVI particles. Overall, the review offers a comprehensive overview of nZVI synthesis methods and their implications for production processes. The strategies presented for improving the reactivity and performance of nZVI particles in practical applications are valuable for researchers and practitioners in the field of environmental remediation.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"44 ","pages":"Article e01362"},"PeriodicalIF":8.6,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143696038","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

Recycling and revalorization of PLA and PHA-based food packaging waste: A review

IF 8.6 2区工程技术

Sustainable Materials and Technologies Pub Date : 2025-03-18 DOI: 10.1016/j.susmat.2025.e01364

Narges Jannatiha , Tomy J. Gutiérrez

{"title":"Recycling and revalorization of PLA and PHA-based food packaging waste: A review","authors":"Narges Jannatiha , Tomy J. Gutiérrez","doi":"10.1016/j.susmat.2025.e01364","DOIUrl":"10.1016/j.susmat.2025.e01364","url":null,"abstract":"<div><div>Poly(lactic acid) (PLA) and poly(hydroxyalkanoates) (PHAs) are the most significant biodegradable polymers in terms of their increasing global industrial production capacities with the aim of replacing petroleum-derived food packaging materials. The latter are well known for their environmentally polluting nature. This paper aims to review the diverse technologies related to the recycling and revalorization of single-use food packaging materials based on PLA and PHAs (e.g. chemical depolymerization, solvolysis, mechanical recycling (mechanochemistry), enzymatic hydrolysis, fermentation, gasification and hybrid approaches), as well as to address an important issue for plastic materials manufacturers as is the reprocessing of residual materials obtained during the manufacturing of food packaging. The latter is aimed at reducing waste and increasing the economic sustainability of the materials and the business. Mechanical recycling (mechanochemistry) is recommendable with the aim of reducing waste and increasing the sustainability of residual materials obtained during the manufacturing of industrialized biodegradable food packaging based on PLA and PHA. In contrast, chemical (chemical depolymerization and solvolysis), enzymatic and fermentation recycling is recommendable to treat discarded single-use food packaging materials made from PLA or PHA, thus yielding chemical precursors (monomers) and fuels, which can then be used as feedstocks to produce their corresponding recycled/renewed polymers or copolymers, thereby diminishing the need for new chemicals. Finally, the gasification process is currently representing an interesting perspective for connecting hybrid recycling approaches between the use of chemistry and bioprocesses, and not merely obtaining synthesis gas as a precursor of monomers, copolymers and/or recycled/renewed biodegradable polymers.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"44 ","pages":"Article e01364"},"PeriodicalIF":8.6,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143681044","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

Eco-friendly and cytocompatible graphene composite based on water-soluble biopolymers for modern printed electronics and beyond

IF 8.6 2区工程技术

Sustainable Materials and Technologies Pub Date : 2025-03-18 DOI: 10.1016/j.susmat.2025.e01366

Aleksandra Kądziela , Sandra Lepak-Kuc , Zofia Szczesiul , Arkadiusz Jeznach , Monika Staniszewska , Katarzyna Wójkowska , Daniel Janczak , Małgorzata Jakubowska

{"title":"Eco-friendly and cytocompatible graphene composite based on water-soluble biopolymers for modern printed electronics and beyond","authors":"Aleksandra Kądziela , Sandra Lepak-Kuc , Zofia Szczesiul , Arkadiusz Jeznach , Monika Staniszewska , Katarzyna Wójkowska , Daniel Janczak , Małgorzata Jakubowska","doi":"10.1016/j.susmat.2025.e01366","DOIUrl":"10.1016/j.susmat.2025.e01366","url":null,"abstract":"<div><div>A growing demand for sustainable electronics has emerged to facilitate electronic waste management, reduce the use of toxic materials and minimize environmental impact, along with enabling the development of new applications. In this study, six biopolymers — sodium alginate (SA), sodium carboxymethyl cellulose (CMC), hydroxyethyl cellulose (HEC), methylcellulose (MC), sea-source water-soluble chitosan hydrochloride (CS), and fungal water-soluble chitosan (CF) — were investigated as polymer binders for sustainable, highly conductive, and cytocompatible graphene-based composites for screen printing applications. The study focused on optimizing graphene dispersion in water solutions using SDS surfactant and two distinct sonication methods to enhance printability, surface coverage, and conductivity. Rheological tests and surface tension analyses characterized the composites, which were primarily printed on paper substrates to achieve biodegradable structures. Electrical tests, SEM and microscopic imaging identified the probe sonication method as more effective in the deagglomeration of graphene. CMC-based layers exhibited the lowest resistance (58 Ω/□), followed by HEC-based and SA-based. Accelerated aging tests showed minor changes in resistance, indicating a 1-year shelf life. Cytotoxicity tests indicated the potential use of these composites in medical devices in contact with human skin. The findings highlight the promising applicability of natural biopolymers as sustainable polymer matrices in developing biodegradable electronics and reducing environmental impact.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"44 ","pages":"Article e01366"},"PeriodicalIF":8.6,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143681041","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 cathodic electrochemical activation enhances oxygen evolution performance of g-C3N4@S/NiFe-LDH heterojunctions

IF 8.6 2区工程技术

Sustainable Materials and Technologies Pub Date : 2025-03-17 DOI: 10.1016/j.susmat.2025.e01367

Yiran Cui , Chengkai Wu , Jie Wu , Huan Hu , Min Ling , Xuehui Gao , Chengdu Liang

{"title":"In-situ cathodic electrochemical activation enhances oxygen evolution performance of g-C3N4@S/NiFe-LDH heterojunctions","authors":"Yiran Cui , Chengkai Wu , Jie Wu , Huan Hu , Min Ling , Xuehui Gao , Chengdu Liang","doi":"10.1016/j.susmat.2025.e01367","DOIUrl":"10.1016/j.susmat.2025.e01367","url":null,"abstract":"<div><div>The sluggish reaction kinetics of the oxygen evolution reaction (OER) markedly hinder water splitting, posing a critical challenge in the design of efficient catalysts. In this study, sulfur-doped NiFe layered double hydroxides (NiFe-LDH) supported on graphitic carbon nitride (g-C<sub>3</sub>N<sub>4</sub>) were synthesized via a hydrothermal method, resulting in the formation of n-n heterojunctions (g-C<sub>3</sub>N<sub>4</sub>@S/NiFe-LDH). This novel structure creates built-in electric fields that enhance electron transfer and modulate the valence electron states of the electrocatalyst for OER. During in-situ Electrochemical Activation (EA), particularly under the in-situ Cathodic Electrochemical Activation (CEA) method, a marked enhancement in high-valence nickel species (NiOOH) and metal sulfides was observed. This promotes electrocatalyst reconfiguration and facilitates the formation of high-valence metal species. Leveraging these synergistic effects, g-C<sub>3</sub>N<sub>4</sub>@S/NiFe-LDH demonstrates exceptional OER performance and durability under alkaline conditions, achieving an overpotential of 257 mV at 50 mA cm<sup>−2</sup> and a Tafel slope of 80 mV cm<sup>−2</sup>. This work offers a innovative approach to the synthesis of highly efficient OER catalysts for alkaline media.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"44 ","pages":"Article e01367"},"PeriodicalIF":8.6,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143735258","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

Evaluation of phase change material-impregnated waste tire-derived carbon in cement-expanded vermiculite-based composites for solar thermoregulation of buildings

IF 8.6 2区工程技术

Sustainable Materials and Technologies Pub Date : 2025-03-17 DOI: 10.1016/j.susmat.2025.e01363

Togay Ozbakkaloglu , Aamar Danish , Abid Ustaoğlu , Ahmet Sarı , Ertuğrul Erdoğmuş , Gökhan Hekimoğlu , Şermin Koçyiğit , Osman Gencel

{"title":"Evaluation of phase change material-impregnated waste tire-derived carbon in cement-expanded vermiculite-based composites for solar thermoregulation of buildings","authors":"Togay Ozbakkaloglu , Aamar Danish , Abid Ustaoğlu , Ahmet Sarı , Ertuğrul Erdoğmuş , Gökhan Hekimoğlu , Şermin Koçyiğit , Osman Gencel","doi":"10.1016/j.susmat.2025.e01363","DOIUrl":"10.1016/j.susmat.2025.e01363","url":null,"abstract":"<div><div>This study introduces an innovative phase change material (PCM) impregnated waste tire-derived carbon (WTC), based on the dire need for enhanced energy efficiency and building temperature management. Thermal energy storage materials were produced by combining capric acid (CA) and palmitic acid (PA) eutectic mixture (CA-PA) with WTC in cement-expanded vermiculite-based composites (CEVCs). The study comprehensively evaluates the impact of PCM-impregnated WTC on the thermoregulation performance of CEVCs in specially prepared test cabins under real weather conditions. Moreover, the material's physio-mechanical properties, thermal conductivity, thermal stability, and thermal behavior were also investigated, validating its ability to absorb and discharge latent heat. The results revealed that WTC/CA-PA experienced latent heat values of 85.2 J/g and 85.8 J/g during solidification and melting, respectively. Furthermore, it was observed that composites containing 10–40 % PCM-impregnated WTC exhibited 12.7–43.7 % and 25.5–160.8 % higher dry unit weight and compressive strength than the reference specimen. The solar thermoregulation experiments at real weather conditions revealed that CEVC containing PCM-impregnated WTC produced a maximum difference of 5.3 °C and 3.53 °C in temperature between the upper surfaces and near surfaces of the test and reference chambers. The promising results symbolize a significant shift toward fostering sustainable construction practices, encompassing occupant comfort and energy efficiency for a sustainable built environment while addressing the critical issue of waste tire recycling.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"44 ","pages":"Article e01363"},"PeriodicalIF":8.6,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143747589","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

Ag-modified, Fe, and cu-doped ZnO/g-C3N4 nanocomposite photocatalyst with enhanced activity toward degradation of pollutant and hydrogen evolution

IF 8.6 2区工程技术

Sustainable Materials and Technologies Pub Date : 2025-03-15 DOI: 10.1016/j.susmat.2025.e01360

Alireza Jafarzadeh, Saeed Sheibani

{"title":"Ag-modified, Fe, and cu-doped ZnO/g-C3N4 nanocomposite photocatalyst with enhanced activity toward degradation of pollutant and hydrogen evolution","authors":"Alireza Jafarzadeh, Saeed Sheibani","doi":"10.1016/j.susmat.2025.e01360","DOIUrl":"10.1016/j.susmat.2025.e01360","url":null,"abstract":"<div><div>In this paper, Ag-loaded and Cu and Fe-doped ZnO/g-C<sub>3</sub>N<sub>4</sub> nanocomposites were produced by a chemical precipitation method. The photocatalytic performance of these nanocomposites was assessed by degrading methylene blue (MB) and producing hydrogen via water splitting under visible light illumination. The incorporation of Cu, Fe, and Ag into the photocatalyst's structure was confirmed by multiple findings, which also provided insights into its features that are essential for enhancing photocatalytic performance. The successful integration of Ag and ZnO into the g-C<sub>3</sub>N<sub>4</sub> was confirmed by transmission electron microscope (TEM) analysis. Optical and electrochemical characteristics results have illustrated that creating a heterostructure between ZnO and g-C<sub>3</sub>N<sub>4</sub> with effects of Ag loading and Cu and Fe doping enhanced charge separation, higher photocurrent density, and reduced band gap to 2.73 eV for the Ag-loaded sample. The best photocatalytic activity was demonstrated by the Ag-loaded ZnO/g-C<sub>3</sub>N<sub>4</sub> nanocomposite, with a complete MB photodegradation after 180 min. Mott-Schottky analysis combined with scavenging experiments reveals that superoxide radicals are pivotal in driving photocatalytic activity. These results therefore confirm that the addition of Ag changes the charge transfer path in the ZnO/g-C<sub>3</sub>N<sub>4</sub> nanocomposite from a conventional type II mechanism to a configuration of <em>Z</em>-scheme. The hydrogen evolution of the Ag-loaded nanocomposite was 1566 μmol/g.h, higher than those of nanocomposites doped with Cu and Fe. Ag appears to be more significant than Fe and Cu in improving the nanocomposite's characteristics for photocatalytic functions in environmental remediation and renewable energy generation.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"44 ","pages":"Article e01360"},"PeriodicalIF":8.6,"publicationDate":"2025-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143644184","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

Composite bead foam with segregated structure for high EMI absorption characteristic by one-step foaming and sinter molding

IF 8.6 2区工程技术

Sustainable Materials and Technologies Pub Date : 2025-03-15 DOI: 10.1016/j.susmat.2025.e01361

Xiulu Gao , Huan Qian , Yichong Chen , Yu Huang , Yuanwei Wang , Ling Zhao , Dongdong Hu

{"title":"Composite bead foam with segregated structure for high EMI absorption characteristic by one-step foaming and sinter molding","authors":"Xiulu Gao , Huan Qian , Yichong Chen , Yu Huang , Yuanwei Wang , Ling Zhao , Dongdong Hu","doi":"10.1016/j.susmat.2025.e01361","DOIUrl":"10.1016/j.susmat.2025.e01361","url":null,"abstract":"<div><div>One-step foaming and sinter molding combined with supercritical CO<sub>2</sub> is a green process to sustainably prepare polymeric bead foam, and presents advantages of energy savings and zero wastewater discharge. Thermoplastic polyurethane (TPU) bead foam with excellent electromagnetic interference (EMI) shielding and superhydrophobicity was prepared by this process in the CO<sub>2</sub>/water system. A suitable co-blowing agent content (1 wt% water) and foaming temperature (130 °C) could balance the sintering effect of inter-beads and mechanical properties of the foamed product. The ball milling combined with the foaming process facilitated forming natural segregated structure and conductive network in TPU bead foam. When MWCNT content increased from 0 vol% to 0.49 vol%, the conductivity increased from 10<sup>−8</sup> S/cm to 0.024 S/cm, and total electromagnetic shielding power (SE<sub>T</sub>) increased from 1.0 dB to 22.8 dB. The distribution of MWCNT in reinforced phase combined with segregated structure further improved the EMI shielding and conductivity. When MWCNT content further increased to 2.96 vol%, SE<sub>T</sub> and conductivity enhanced to 41.8 dB and 0.2 S/cm, respectively.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"44 ","pages":"Article e01361"},"PeriodicalIF":8.6,"publicationDate":"2025-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143644185","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

High-value utilization of corn plants derived biomass carbon materials for potassium ion storage

IF 8.6 2区工程技术

Sustainable Materials and Technologies Pub Date : 2025-03-14 DOI: 10.1016/j.susmat.2025.e01359

Tianhong Sun , Chenyang Gao , Xu Tan, Ningxun Zhang, Guijuan Xie, Zezhong Shi, Zheng Yang, Tao Wang, Yuping Wu

{"title":"High-value utilization of corn plants derived biomass carbon materials for potassium ion storage","authors":"Tianhong Sun , Chenyang Gao , Xu Tan, Ningxun Zhang, Guijuan Xie, Zezhong Shi, Zheng Yang, Tao Wang, Yuping Wu","doi":"10.1016/j.susmat.2025.e01359","DOIUrl":"10.1016/j.susmat.2025.e01359","url":null,"abstract":"<div><div>Biomass derived carbon materials exhibit great potential for K<sup>+</sup> storage due to their inherent low-cost and hierarchical porous structure that the conventional synthetic chemistry can't be reached. In this study, biomass carbon anodes derived from various parts of corn plants, including stalks, cobs, and leaves, are explored for K+ storage applications. The findings reveal that lignin and ash content play pivotal roles in determining capacity, with KOH activation effectively enhancing lignin content. Moreover, K<sup>+</sup> storage properties can be further improved by N-doping due to high adsorption and doping content. As a result, the corn cobs derived biomass carbon anode with KOH activation and N-doping delivers a high discharge capacity of 265.3 mAh g<sup>−1</sup> at 50 mA g<sup>−1</sup>, and exhibits a superior capacity retention of 85.3 % over 1000 cycles, which demonstrates the exceptional K<sup>+</sup> storage performance of biomass carbon materials, and promotes the high-value utilization of biomass wastes.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"44 ","pages":"Article e01359"},"PeriodicalIF":8.6,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143637468","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

SnO2nanoparticles endowed Pt-TiO2 bowl nanoarraysenhanced redox ability towards efficient tetracycline hydrochlorideremoval andH2 generation

IF 8.6 2区工程技术

Sustainable Materials and Technologies Pub Date : 2025-03-14 DOI: 10.1016/j.susmat.2025.e01358

Dong Wang , Hongyu Zhang , Ping Yang , Xiao Zhang

{"title":"SnO2nanoparticles endowed Pt-TiO2 bowl nanoarraysenhanced redox ability towards efficient tetracycline hydrochlorideremoval andH2 generation","authors":"Dong Wang , Hongyu Zhang , Ping Yang , Xiao Zhang","doi":"10.1016/j.susmat.2025.e01358","DOIUrl":"10.1016/j.susmat.2025.e01358","url":null,"abstract":"<div><div>Abstract</div><div>A novel approach is developed to construct <em>Z</em>-scheme heterojunctions via growing SnO<sub>2</sub> nanoparticles on Pt decorated hollow TiO<sub>2</sub> bowl nanoarrays (TBN) towards efficient photogenerated charge carrier separation and transfer to enhance the redox ability of resulting catalysts. Namely, sample TBN was fabricated using hollow carbon spheres as templates, in which highly crystalline TiO<sub>2</sub> nanoparticles (less than 10 nm) were assembled into nanoarray to construct hollow bowl spheres. Homogeneously distributed small Pt nanoparticles in TBN govern the growth of SnO<sub>2</sub> nanoparticles via a solvent thermal route and finally to create <em>Z</em>-scheme TiO<sub>2</sub>/Pt/SnO<sub>2</sub> heterojunctions. Pt loading between SnO<sub>2</sub> and TBN components improved photogenerated charge carrier separation and transfer efficiencies and enhanced photocatalytic performance. TiO<sub>2</sub>/Pt/SnO<sub>2</sub> heterostructure samples exhibited improved performance for tetracycline hydrochloride removal with a pseudo-first-order kinetic reaction constant of k = 0.080 min<sup>−1</sup>which were 3.8 and 6.7 times of those of TBN (k = 0.012 min<sup>−1</sup>) and TBN/SnO<sub>2</sub> composites (sample TS, k = 0.021 min<sup>−1</sup>), respectively. Moreover, the photocatalytic hydrogen generation rate of TiO<sub>2</sub>/Pt/SnO<sub>2</sub> heterostructures without using co-catalyst was 3511.9 μmol·g<sup>−1</sup>·h<sup>−1</sup> which was 2.3 times of that of sample TS using Pt as co-catalyst. These results provided new sights for synthesis of photocatalysts especially for the removal of antibiotic pollutants.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"44 ","pages":"Article e01358"},"PeriodicalIF":8.6,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143637466","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 abundant resource to critical commodity: Forecasting manganese supply and assessing its sustainability

IF 8.6 2区工程技术

Sustainable Materials and Technologies Pub Date : 2025-03-13 DOI: 10.1016/j.susmat.2025.e01349

Irina Sokolova , Glen T. Nwaila , Mbuyu G. Ntunka , Sergii Klochkov , Simon Michaux , Emanuela Moscardini , Luigi Toro , Yousef Ghorbani

{"title":"From abundant resource to critical commodity: Forecasting manganese supply and assessing its sustainability","authors":"Irina Sokolova , Glen T. Nwaila , Mbuyu G. Ntunka , Sergii Klochkov , Simon Michaux , Emanuela Moscardini , Luigi Toro , Yousef Ghorbani","doi":"10.1016/j.susmat.2025.e01349","DOIUrl":"10.1016/j.susmat.2025.e01349","url":null,"abstract":"<div><div>Manganese, despite being one of the most abundant elements in the Earth's crust, has been designated as a critical raw material by numerous countries due to its irreplaceable role in modern applications. Manganese demand is projected to rise due to the deployment of renewable energy technologies. However, its future supply relative to projected demand has not been thoroughly considered. Increasing material demand, geopolitical tension, an asymmetric manganese market, and a displacement of supply risks from other materials to manganese (via substitution) motivate for a thorough examination of the potential future outcomes of manganese supply and sustainability. We provide an analysis of the future supply and demand of manganese, its implications and provide some recommendations in the context of energy and material sufficiency. In summary, we offer a: (1) systematic review of manganese and its mineral value chain; (2) a set of data-driven production forecasts, at regional to global scales; (3) scenario analysis of four end-member scenarios of the supply and demand system; and (4) broad geographical analysis and policy recommendations. Our forecasts used production data from 1929 to 2022, employing multiple forecasting methods. Forecasts indicate potential production increases in top-producing countries such as Australia, Gabon, Ghana, India and South Africa. Conversely, Western nations face potential shortages due to declining manganese extraction and rising demand for renewable energy technologies. Meanwhile, BRICS nations, with growing production capabilities and a broader base of producing countries, are likely to maintain a secure supply. Pragmatic and system-level policies, such as increasing lifecycle times, decreasing energy costs to improve recycling rates, and fostering peace through trade can enhance manganese sustainability.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"44 ","pages":"Article e01349"},"PeriodicalIF":8.6,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143644186","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