ACS Sustainable Resource Management最新文献

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Building Highly Efficient Nanofiltration Membrane with Enhanced Porosity via Incorporating Chitosan-Based Derivatives 壳聚糖基衍生物制备孔隙率高的高效纳滤膜
ACS Sustainable Resource Management Pub Date : 2026-10-22 Epub Date: 2026-09-30 DOI: 10.1021/acssusresmgt.6c00497
Yufei Liu, Chun Tian, Feng Zhang, Bo Peng, Qianpan Guo, Shuai Gu, Pengpeng Shao, Qingquan Liu, Chunyue Pan, Juntao Tang, Guipeng Yu
{"title":"Building Highly Efficient Nanofiltration Membrane with Enhanced Porosity via Incorporating Chitosan-Based Derivatives","authors":"Yufei Liu,&nbsp;Chun Tian,&nbsp;Feng Zhang,&nbsp;Bo Peng,&nbsp;Qianpan Guo,&nbsp;Shuai Gu,&nbsp;Pengpeng Shao,&nbsp;Qingquan Liu,&nbsp;Chunyue Pan,&nbsp;Juntao Tang,&nbsp;Guipeng Yu","doi":"10.1021/acssusresmgt.6c00497","DOIUrl":"https://doi.org/10.1021/acssusresmgt.6c00497","url":null,"abstract":"<p>Thin-film composite (TFC) nanofiltration membranes are widely employed for water treatment due to their effective retention of multivalent ions and organic contaminants. However, a significant challenge persists, with increased water permeability often compromising selectivity and structure stability. Here, we present the design and synthesis of highly efficient TFC membranes through the incorporation of water-soluble chitosan derivatives (carboxymethyl chitosan, CMCS, and arginine-modified chitosan, CSR) as a third component in the aqueous phase during interfacial polymerization. The chitosan derivatives, enriched with abundant active groups and strong charge properties, served as both additives and amino comonomers, optimizing the pore structure of the polyamide separation layer. The optimized CMCS/PIP-TFC membrane achieves a pure water permeance of 15.6 LMH/bar while maintaining &gt;95% Na<sub>2</sub>SO<sub>4</sub> rejection and exhibits a flux recovery rate &gt; 99% after bovine serum albumin fouling. Molecular simulations reveal that the incorporated chitosan chains increase the fractional free volume from 14.3 to 29.9%. Additionally, the unique charge properties of chitosan endow the TFC membrane with remarkable antibacterial properties. This study provides new insights and strategies for the development of high-performance TFC membranes for industrial applications.</p>","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"3 10","pages":"3442–3452"},"PeriodicalIF":0.0,"publicationDate":"2026-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149230452","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Spent Iron-Char Catalysts Are Not Waste: A Viewpoint on Integrating Methane Pyrolysis with Steelmaking 废铁炭催化剂不是废物——甲烷热解与炼钢一体化的观点
ACS Sustainable Resource Management Pub Date : 2026-10-22 Epub Date: 2026-09-26 DOI: 10.1021/acssusresmgt.6c00498
Dandan Zhao, Xiaolong Ma, Qi Tian, Zichuan Ma
{"title":"Spent Iron-Char Catalysts Are Not Waste: A Viewpoint on Integrating Methane Pyrolysis with Steelmaking","authors":"Dandan Zhao,&nbsp;Xiaolong Ma,&nbsp;Qi Tian,&nbsp;Zichuan Ma","doi":"10.1021/acssusresmgt.6c00498","DOIUrl":"https://doi.org/10.1021/acssusresmgt.6c00498","url":null,"abstract":"<p>Methane pyrolysis offers a CO<sub>2</sub>-free pathway to hydrogen production; however, its commercial deployment remains hindered by a stoichiometric constraint: each kilogram of H<sub>2</sub> co-produces three kilograms of solid carbon, which rapidly deactivates the catalyst. Conventional strategies aiming to extend catalyst lifetime are therefore fundamentally incompatible with this inherent stoichiometric constraint. This perspective advocates a paradigm shift: rather than mitigating carbon deposition, we strategically harness it. By designing iron-loaded char catalysts whose spent form is an intimately mixed Fe/C composite suitable for potential use as metallurgical feedstock in steelmaking, we recast catalyst deactivation from an operational failure into a value-capturing endpoint. Experimental results demonstrate that the spent ASC/Fe@C composite exhibits CO<sub>2</sub> gasification reactivity markedly superior to that of commercial metallurgical coke. Onset occurs at a temperature approximately 150 °C lower, and conversion reaches 70.7% at 900 °C compared to just 6.5% for coke. This integration of catalytic function with end-of-life value provides a pathway to couple clean hydrogen production with the steel industry. The steel industry, which consumes billions of tons of carbonaceous feedstocks annually, represents a suitable large-scale destination for methane pyrolysis’s million-ton-scale solid carbon output, providing a potential sink for this carbon stream pending quantitative techno-economic validation. Consequently, this approach establishes a cross-sectoral circular carbon economy, potentially eliminating the need for energy-intensive catalyst regeneration while simultaneously advancing steel decarbonization.</p>","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"3 10","pages":"3274–3281"},"PeriodicalIF":0.0,"publicationDate":"2026-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149230434","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
From Spontaneously Tubulate Cornhusk to Cheap, Scalable, Degradable Biomass Straws via Adhesion of In Situ Regenerated Lignocellulose 通过原位再生木质纤维素的粘附,从自发管状的玉米壳到廉价、可扩展、可降解的生物质秸秆
ACS Sustainable Resource Management Pub Date : 2026-09-24 Epub Date: 2026-08-25 DOI: 10.1021/acssusresmgt.6c00350
Rongbo Zheng, Mei Zheng, Xuelian Guo, Xiaoqing Wang, Xinyang Liu, Chenxi Yan
{"title":"From Spontaneously Tubulate Cornhusk to Cheap, Scalable, Degradable Biomass Straws via Adhesion of In Situ Regenerated Lignocellulose","authors":"Rongbo Zheng,&nbsp;Mei Zheng,&nbsp;Xuelian Guo,&nbsp;Xiaoqing Wang,&nbsp;Xinyang Liu,&nbsp;Chenxi Yan","doi":"10.1021/acssusresmgt.6c00350","DOIUrl":"https://doi.org/10.1021/acssusresmgt.6c00350","url":null,"abstract":"<p>Biomass with 2D structures has been exploited to produce degradable straws via the top-down strategy to alleviate environmental pollution of plastic straws. Two critical issues remain to be solved: inherent brittleness that leads to cracking during the tubulation process, and weak interfacial bonding that makes it difficult to firmly join the overlapped edges. Conventional methods usually increase tubulation performance through delignification/chitosan infiltration and realize the bonding of overlapped edges via mould-assisted hot pressing or additional adhesives. Herein, cornhusk with inherent spontaneous tubulation properties was utilized to produce straws via a green, scalable, low-carbon-footprint top-down method. The entire process includes spontaneous tubulation, NaOH/urea treatment, and drying procedures and requires no chitosan infiltration, extra adhesives, or mould-assisted hot pressing. The lignocellulose dissolved in the reaction solution acts as a binder, which can firmly join the overlapped edges only through a simple drying treatment. The bending strength of the as-prepared cornhusk straw reaches 7.1 MPa, which is comparable to that of commercial plastic straw (7.0 MPa). The production price is 0.15 cents per straw, lower than those of paper straw (4.00 cents), PLA straw (2.00 cents), and even plastic straw (0.20 cents). Theoretically, a total of 1.2 million straws can be produced per hectare of cornfield. The proposed cornhusk straw, which integrates biodegradability, scalability, cheapness, and sustainability, is a promising alternative to commercially available single-used paper and plastic-based straws.</p>","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"3 9","pages":"3079–3089"},"PeriodicalIF":0.0,"publicationDate":"2026-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149027862","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Problems and Needs of Green Hydrogen and Electrolyzer Customers 绿色氢气和电解槽客户的问题和需求
ACS Sustainable Resource Management Pub Date : 2026-09-24 Epub Date: 2026-09-08 DOI: 10.1021/acssusresmgt.6c00371
Arash Emdadi, Bin Bian, Bruce E. Logan
{"title":"The Problems and Needs of Green Hydrogen and Electrolyzer Customers","authors":"Arash Emdadi,&nbsp;Bin Bian,&nbsp;Bruce E. Logan","doi":"10.1021/acssusresmgt.6c00371","DOIUrl":"https://doi.org/10.1021/acssusresmgt.6c00371","url":null,"abstract":"<p>Hydrogen (H<sub>2</sub>), when produced through water splitting using renewable energy sources (green hydrogen), can result in minimal carbon emissions to the environment. However, most hydrogen gas is currently made using fossil fuels. To successfully address the needs of green H<sub>2</sub> and electrolyzer customers, it is important to understand their problems and concerns. We investigated the viewpoints of existing customers by conducting 115 interviews in different industrial sectors, including oil and gas industries, ammonia industries, heavy and light-duty transportation, and steel industries. The customers reported 328 concerns that included 114 technical issues. Their identified concerns were divided into twelve categories, and technical issues were further divided into ten categories. The high cost of green hydrogen and capital for electrolyzers was the major concern for customers, followed by technical issues and an imbalanced supply chain. Major technical challenges were efficiency of electrolyzers, low reliability, and lack of uniform standards and parts. The results of this survey indicated the necessity of developing novel electrolyzers with high efficiency and reliability at a reduced cost for long-term operation to relieve the economic burden for the customer. Also required are the development of infrastructure for distribution, ways to expedite governmental support, and facilitating the permitting process.</p>","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"3 9","pages":"3156–3162"},"PeriodicalIF":0.0,"publicationDate":"2026-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149022730","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effect of K2CO3 Activation on Hydrochar Properties and Its Application as Support for Lipase Immobilization K2CO3活化对烃类性质的影响及其作为脂肪酶固定化载体的应用
ACS Sustainable Resource Management Pub Date : 2026-09-24 Epub Date: 2026-08-25 DOI: 10.1021/acssusresmgt.6c00216
Ravichandra C. Patil, Venu B. Borugadda, Bishnu Acharya, Ajay K. Dalai
{"title":"Effect of K2CO3 Activation on Hydrochar Properties and Its Application as Support for Lipase Immobilization","authors":"Ravichandra C. Patil,&nbsp;Venu B. Borugadda,&nbsp;Bishnu Acharya,&nbsp;Ajay K. Dalai","doi":"10.1021/acssusresmgt.6c00216","DOIUrl":"https://doi.org/10.1021/acssusresmgt.6c00216","url":null,"abstract":"<p>Fats, oils, and grease (FOG) pose significant environmental challenges but offer valorization potential through biocatalytic hydrolysis. This study evaluates K<sub>2</sub>CO<sub>3</sub>-activated canola hydrochar as a suitable support for immobilizing crude fungal lipases from <em>Aspergillus niger</em> and <em>Penicillium chrysogenum</em>. Canola hydrochar from hydrothermal liquefaction (300 °C, 60 min) showed optimal properties (lowest oil sorption: 47.9 ± 4.1 wt %). Subsequent activation with 3.0 M K<sub>2</sub>CO<sub>3</sub> increased the BET surface area of canola hydrochar from 19.4 ± 4.0 to 98.5 ± 4.0 m<sup>2</sup>·g<sup>–1</sup>, improving support accessibility for enzyme adsorption. Immobilized lipase achieved a protein loading of 422.5 ± 8.4 mg·g<sup>–1</sup>, 67.03 ± 2.4% yield, and 34.79 ± 3.1% expressed activity relative to free enzyme (147 ± 14 μmol·g<sup>–1</sup>·min<sup>–1</sup> immobilized vs 195 ± 21 μmol·g<sup>–1</sup>·min<sup>–1</sup> free). Kinetic analysis of olive oil hydrolysis yielded a <em>K</em><sub>m</sub> of 12.3 ± 1.2 mg·mL<sup>–1</sup> and a <em>V</em><sub>max</sub> of 245 ± 18 μmol·g<sup>–1</sup>·min<sup>–1</sup>, indicating effective substrate affinity and catalytic performance after immobilization. The biocatalyst demonstrated reasonable reusability (53% activity retention after 5 cycles) and achieved 92.9% FOG hydrolysis. Under identical assay conditions, the waste-derived hydrochar-supported lipase demonstrated comparable performance to selected commercial <em>Candida rugosa</em> lipases, supporting its potential as a cost-effective and sustainable biocatalyst platform for FOG valorization.</p>","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"3 9","pages":"3000–3012"},"PeriodicalIF":0.0,"publicationDate":"2026-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149022706","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Utilization of Waste Bone Resources for Sustainable Fertilizer Synthesis 废骨资源在可持续肥料合成中的利用
ACS Sustainable Resource Management Pub Date : 2026-09-24 Epub Date: 2026-09-08 DOI: 10.1021/acssusresmgt.6c00374
Tanvir Islam Rabbi, Md Jowel Mia, Md. Farid Ahmed, Muhammad Shahriar Bashar, Sumaya Tabassum, Samina Ahmed, Md. Sahadat Hossain
{"title":"Utilization of Waste Bone Resources for Sustainable Fertilizer Synthesis","authors":"Tanvir Islam Rabbi,&nbsp;Md Jowel Mia,&nbsp;Md. Farid Ahmed,&nbsp;Muhammad Shahriar Bashar,&nbsp;Sumaya Tabassum,&nbsp;Samina Ahmed,&nbsp;Md. Sahadat Hossain","doi":"10.1021/acssusresmgt.6c00374","DOIUrl":"https://doi.org/10.1021/acssusresmgt.6c00374","url":null,"abstract":"<p>This study, for the first time, aimed to synthesize triple superphosphate (TSP) fertilizer from different biowaste sources (cow, goat, chicken, pigeon, and hilsa fish bones) through a two-step process. Initially, hydroxyapatite (HAp) was obtained from waste bones using a simple calcination method and finally converted to TSP by treating it with phosphoric acid. The synthesized HAp and TSP were characterized by X-ray diffraction (XRD) to determine the crystallographic structure. Fourier transform infrared spectroscopy (FTIR) was used to evaluate the functional groups, while morphological features and compositional analysis were assessed by scanning electron microscopy coupled with energy-dispersive X-ray analysis (SEM-EDX). The investigations reported almost identical FTIR spectra and hexagonal crystal structures; among the samples, pigeon-derived HAp showed the ideal Ca/P ratio (1.67), whereas cow-derived HAp showed the highest (2.57) and this ratio changed to 0.70 and 0.52 for TSP samples after acid treatment. The thermal transformation behavior of hilsa-derived TSP was investigated by thermogravimetric analysis, derivative thermogravimetry, and differential scanning calorimetry (TG/DTG/DSC) techniques, which demonstrated a residual mass of 76.65%, releasing 3.2 mol of water, close to the ideal value (3 mol), thus proving the synthesis of almost pure TSP. In addition, the solution phase physicochemical behavior of the synthesized products was compared with commercial TSP in deionized water and soil extract, which confirmed their behavior as readily soluble phosphate fertilizers.</p>","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"3 9","pages":"3142–3155"},"PeriodicalIF":0.0,"publicationDate":"2026-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149027960","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Using Biomass Particles and Biopolymers to Control the Mechanical Properties and Biodegradability of Renewable Foams 利用生物质颗粒和生物聚合物控制可再生泡沫的力学性能和生物降解性
ACS Sustainable Resource Management Pub Date : 2026-09-24 Epub Date: 2026-09-04 DOI: 10.1021/acssusresmgt.6c00353
Victória B. P. Silva, Luygui G. Silva, Mariana M. Godoy, Daniel Baron, Elisa S. Ferreira
{"title":"Using Biomass Particles and Biopolymers to Control the Mechanical Properties and Biodegradability of Renewable Foams","authors":"Victória B. P. Silva,&nbsp;Luygui G. Silva,&nbsp;Mariana M. Godoy,&nbsp;Daniel Baron,&nbsp;Elisa S. Ferreira","doi":"10.1021/acssusresmgt.6c00353","DOIUrl":"https://doi.org/10.1021/acssusresmgt.6c00353","url":null,"abstract":"<p>Polymeric foams are widely used in packaging, raising environmental concerns due to improper disposal and reliance on non-renewable feedstocks, prompting the development of renewable and biodegradable alternatives. Our study introduces renewable foam composites of unrefined biomass particles (sugarcane bagasse (SB) and eucalyptus waste (EW)) and biopolymers (starch (S) and pectin (P)). The foams were prepared by foam-forming, combining the components in water and incorporating air bubbles with mechanical stirring. The aqueous foams were then oven-dried, yielding low-density materials (0.13–0.19 g·cm<sup>–3</sup>), with SB foams displaying smaller pores (∼800 μm) than EW foams (∼1000 μm). The compressive strengths were comparable to those of rigid polymeric foams (0.08–0.27 MPa) and were dependent on foam composition. Respirometry confirmed the biodegradability of the foams, with rates governed by the biopolymer: starch-based foams biodegraded faster (0.25 and 0.23 d<sup>–1</sup> for SB + S and EW + S) than pectin-based foams. The biodegradation kinetics were also influenced by the particles, as EW foams had longer lag times than SB foams. FTIR confirmed starch breakdown and increased water interactions after biodegradation. The findings show that combining raw biomass with biopolymers provides a green approach to controlling the mechanical properties and biodegradability of renewable foams designed for packaging applications.</p>","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"3 9","pages":"3090–3102"},"PeriodicalIF":0.0,"publicationDate":"2026-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149022624","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Valorization of Coffee Waste for the Preparation of Caffeine-Containing ZnCl2:Ethylene Glycol Eutectic Systems: Rheological and Thermal Properties 咖啡废料的增值制备含咖啡因的ZnCl2:乙二醇共晶体系:流变学和热性能
ACS Sustainable Resource Management Pub Date : 2026-09-24 Epub Date: 2026-08-24 DOI: 10.1021/acssusresmgt.6c00309
Manuel Torres Perdomo, Yazmin Y. Agámez-Pertuz, Eduard Romero, Luz M. Ocampo-Carmona
{"title":"Valorization of Coffee Waste for the Preparation of Caffeine-Containing ZnCl2:Ethylene Glycol Eutectic Systems: Rheological and Thermal Properties","authors":"Manuel Torres Perdomo,&nbsp;Yazmin Y. Agámez-Pertuz,&nbsp;Eduard Romero,&nbsp;Luz M. Ocampo-Carmona","doi":"10.1021/acssusresmgt.6c00309","DOIUrl":"https://doi.org/10.1021/acssusresmgt.6c00309","url":null,"abstract":"<p>Valorizing coffee agro-industrial waste provides a sustainable route for producing value-added chemical precursors. Here, caffeine hydrochloride (CafCl) was prepared from commercial caffeine and from a caffeine-rich fraction recovered from coffee pulp. Protonation with in situ-generated HCl yielded CafCl and promoted the removal of part of the nonvolatile impurities present in the recovered fraction, as supported by FTIR, <sup>1</sup>H NMR, and TGA analyses. Subsequently, caffeine-containing ZnCl<sub>2</sub>:ethylene glycol eutectic systems were prepared by incorporating different molar amounts of CafCl into the ZnCl<sub>2</sub>:ETG liquid matrix. Rheological measurements showed that increasing CafCl content increased viscosity, reaching values up to approximately 50,000 cP at 20 °C, while slightly decreasing density. Arrhenius and Vogel–Fulcher–Tammann modeling indicated higher apparent activation energies for viscous flow after CafCl incorporation. Thermal analysis showed that, excluding initial moisture-related mass loss, the prepared systems did not exhibit major degradation events below approximately 60 °C and displayed a glass transition near –45 °C. Overall, caffeine recovered from coffee pulp produced eutectic systems with thermal and rheological properties comparable to those prepared from commercial caffeine, supporting the use of coffee-processing residues as low-cost feedstocks for sustainable liquid materials.</p>","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"3 9","pages":"3058–3068"},"PeriodicalIF":0.0,"publicationDate":"2026-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149022693","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
An Addictive E-Waste Problem: Comparative Life Cycle Assessment of Different E-Cigarette Device Architectures 上瘾电子垃圾问题:不同电子烟设备架构的生命周期比较评估
ACS Sustainable Resource Management Pub Date : 2026-09-24 Epub Date: 2026-08-27 DOI: 10.1021/acssusresmgt.6c00483
Emily Shilton, Qingshi Tu, Milind Kandlikar, Alexandra Tavasoli
{"title":"An Addictive E-Waste Problem: Comparative Life Cycle Assessment of Different E-Cigarette Device Architectures","authors":"Emily Shilton,&nbsp;Qingshi Tu,&nbsp;Milind Kandlikar,&nbsp;Alexandra Tavasoli","doi":"10.1021/acssusresmgt.6c00483","DOIUrl":"https://doi.org/10.1021/acssusresmgt.6c00483","url":null,"abstract":"<p>42 million kilograms of electronic waste are created each year from the disposal of electronic cigarettes. Despite the efforts of public health officials to discourage their use, sales of electronic cigarettes continue to grow, resulting in the loss of recoverable critical metals, an increase in plastic waste, and the release of toxic pollutants into the environment from improper disposal. Yet, regulations surrounding the responsible manufacture, use, disposal, and recycling of these devices are nascent, with many reports attributing this limited action to a lack of understanding of their life cycle environmental impacts. The ability to define these impacts is further hindered by an absence of fundamental data describing their material composition and how environmental impacts differ between reusable and disposable devices. In response, this study conducts a material characterization exercise to create a novel dataset describing the physical composition of various e-cigarette device architectures and uses this data to conduct a comparative life cycle assessment to understand their environmental impacts. Results showed that, regardless of device architecture, the manufacturing phase of their product life cycle has the highest environmental impact, and that refillable devices are only more environmentally friendly than disposable devices if they are used repeatedly for long periods of time. The manufacture of refillable devices specifically resulted in high degrees of marine eutrophication driven by the manufacture of metal alloy magnets used to secure nicotine-containing cartridges to the device. Further, if devices are landfilled at their end-of-life, long-term leaching of metals and chemicals from the devices was found to result in increased negative impact on freshwater and marine ecotoxicity. Finally, requiring device disassembly as a precondition to disposal in municipal recycling systems was found to be hazardous and impractical for general users. These findings together suggest that no single policy intervention will be sufficient on its own to solve the problem of accumulating electronic waste resulting from the disposal of e-cigarettes. Instead, a combination of coordinated policies targeting different stages of the device life cycle will be most effective. These may include regulation that encourages manufacturing and design practices that ease disassembly and reduce the use of hazardous materials; differential taxation or restrictions on single-use disposable devices; and extended producer responsibility legislation that encourages investment in recycling systems, with environmental policy complementing rather than replacing public health efforts.</p>","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"3 9","pages":"3228–3240"},"PeriodicalIF":0.0,"publicationDate":"2026-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149022709","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Separation of Molybdenum from Uranium(III) and Lanthanide(III) in the Chloride Melt via One-Step Carbidation 氯化物熔体中钼与铀(III)和镧系元素(III)的一步碳化分离
ACS Sustainable Resource Management Pub Date : 2026-09-24 Epub Date: 2026-07-23 DOI: 10.1021/acssusresmgt.6c00293
Jun Wen, Manxin Cao, Xiyan Liu, Yu Gong
{"title":"Separation of Molybdenum from Uranium(III) and Lanthanide(III) in the Chloride Melt via One-Step Carbidation","authors":"Jun Wen,&nbsp;Manxin Cao,&nbsp;Xiyan Liu,&nbsp;Yu Gong","doi":"10.1021/acssusresmgt.6c00293","DOIUrl":"https://doi.org/10.1021/acssusresmgt.6c00293","url":null,"abstract":"<p>The separation of Mo from irradiated uranium fuel is an effective way to obtain the radioisotope <sup>99</sup>Mo with crucial roles in clinical nuclear diagnostics. Although the aqueous-based methods have been employed for this purpose, they still suffer from problems such as the generation of large amounts of radioactive liquid waste. Herein, a novel molten salt-based carbidation method is proposed for the efficient separation of Mo from simulated irradiated fuel with uranium and lanthanide ions coexisting in the LiCl-KCl melt. The effects of carbidation temperature and time as well as the amount of the carbidation reagent carbon black were investigated. It is demonstrated that 99.9% Mo is separated in the form of Mo<sub>2</sub>C from the MoCl<sub>3</sub>-UCl<sub>3</sub>-LnCl<sub>3</sub>-LiCl-KCl melt after a reaction with carbon black at a C/Mo ratio of 5:1 at 800°C for 120 min, whereas over 99% of uranium and 98% of lanthanide ions remain in the melt. Neither the separation process nor the separation result is affected by γ and β irradiation. The separated Mo<sub>2</sub>C can be conveniently converted into aqueous Na<sub>2</sub>MoO<sub>4</sub> through calcination followed by dissolution in NaOH solution, achieving a total Mo recovery rate of 97.8%.</p>","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"3 9","pages":"3040–3047"},"PeriodicalIF":0.0,"publicationDate":"2026-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149022768","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","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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