ACS Sustainable Resource Management最新文献

{"title":"Solar Driven Photocatalytic Reduction of Cr(VI) Via Interfacial Charge Transfer in FeWO4/CuO Nanocomposite","authors":"Saloni Priyadarshini Mallik,&nbsp;Bibekananda Bhoi,&nbsp;Amrita,&nbsp;Debangshi Naha,&nbsp;Vimlesh Chandra","doi":"10.1021/acssusresmgt.6c00333","DOIUrl":"https://doi.org/10.1021/acssusresmgt.6c00333","url":null,"abstract":"<p>Hexavalent chromium (Cr(VI)) is a hazardous trace contaminant commonly present in industrial wastewater due to various anthropogenic activities, posing significant environmental and health risks. In this study, a FeWO₄/CuO nanocomposite was synthesized via coprecipitation followed by thermal decomposition, and systematically characterized to determine its crystal structure, morphology, elemental composition, and optical properties. The synthesized materials were evaluated for the photocatalytic reduction of toxic Cr(VI) under natural solar irradiation. Powder X-ray diffraction (P-XRD) analysis revealed that the average crystallite size decreased from 39.90 nm for FeWO₄ and 30.51 nm for CuO to 25.48 nm in the FeWO₄/CuO nanocomposite, indicating improved dispersion and interaction between the components. The FeWO₄/CuO nanocomposite exhibited superior photocatalytic activity, achieving 98.89% reduction of Cr(VI) to Cr(III) within 90 min, compared to 39.24% for FeWO₄ and 56.54% for CuO. The reduction process followed pseudo-first-order kinetics, with a rate constant (<em>k</em>) of 0.0409 min^–1, which is approximately five times higher than that of pure FeWO₄ (0.0097 min^–1) and about twice that of CuO (0.021 min^–1). The effects of operational parameters, including catalyst dosage (1.2 g L⁻¹, 98.85%), solution pH (pH 2, 98.89%), and the presence of inorganic ions, were systematically investigated, with the observed trend: Cl^– &lt; Br^– &lt; SO₄^2– &lt; NO₃^– &lt; IO₃^– &lt; CO₃^2– &lt; I^–. Reactive species trapping experiments indicated that electrons (e^–) played a dominant role in the reduction process. Furthermore, the nanocomposite demonstrated excellent stability and reusability, with only a 2.5% decrease in efficiency after five consecutive cycles.</p>","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"3 8","pages":"2882–2895"},"PeriodicalIF":0.0,"publicationDate":"2026-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148822408","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}

{"title":"In Situ Generated Ni2P Catalyst for Selective Hydrodeoxygenation of Bisphenol A and Polycarbonate Waste to Aromatic Hydrocarbons","authors":"Maria A. Golubeva,&nbsp;Mariyam Mukhtarova,&nbsp;Anastasia M. Scherbakova,&nbsp;Anton L. Maximov","doi":"10.1021/acssusresmgt.6c00275","DOIUrl":"https://doi.org/10.1021/acssusresmgt.6c00275","url":null,"abstract":"<p>The continuous growth of global plastic production and consumption, together with insufficient recycling strategies, has intensified the need for sustainable plastic waste valorization routes. Catalytic hydroprocessing of oxygen-containing polymers represents a promising route for converting plastic waste into valuable chemicals and fuel components. This work reports an in situ generated Ni₂P-containing catalyst as a sulfur-free and non-noble metal alternative to traditional catalysts for the hydrodeoxygenation of bisphenol A and polycarbonate for the first time. The Ni₂P-based catalyst enables the selective formation of C₆–C₉ aromatic hydrocarbons from bisphenol A and polycarbonate. Product distribution depended on the reaction conditions. Under relatively mild conditions (350 °C, 5 MPa H₂, 6 h), bisphenol A yielded a benzene–cumene mixture with 63% selectivity. Increasing the temperature to 400 °C and the initial H₂ pressure to 9 MPa shifted the product distribution toward benzene, resulting in a selectivity of up to 84%. Moreover, the applicability of the approach to polycarbonate waste was demonstrated (400 °C, 9 MPa H₂, 10 h), yielding a benzene–cumene mixture with 64% selectivity. These findings highlight the potential of Ni₂P-catalyzed hydrodeoxygenation for transforming polycarbonate waste into valuable aromatic hydrocarbons and fuel components.</p>","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"3 8","pages":"2830–2839"},"PeriodicalIF":0.0,"publicationDate":"2026-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148822456","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}

{"title":"Lignin-Derived Fe-Loaded Graphene-Like Carbon as an Efficient Electrocatalyst for Nitrate-to-Ammonia Conversion","authors":"Wataru Yoshida,&nbsp;Hisaki Ito,&nbsp;Keiko Kaminakano,&nbsp;Ryo Suwaki,&nbsp;Shota Nagao,&nbsp;Mikaru Mori,&nbsp;Yoshinori Nishiwaki,&nbsp;Fumito Fujishiro,&nbsp;Motoyuki Matsuo,&nbsp;Masanobu Mori,&nbsp;Masaharu Nakayama","doi":"10.1021/acssusresmgt.6c00264","DOIUrl":"https://doi.org/10.1021/acssusresmgt.6c00264","url":null,"abstract":"<p>We developed a sustainable route for the synthesis of iron-loaded graphene-like carbon catalysts from lignin, a waste byproduct from the paper industry. The catalysts were prepared by pyrolyzing Fe(II)-impregnated alkaline lignin at 1280 °C under an argon atmosphere. Structural characterization revealed the coexistence of α-Fe, γ-Fe, magnetite (Fe₃O₄), and pyrrhotite (Fe_{1–<em>x</em>}S) within a conductive graphene-like matrix. The electrocatalytic nitrate reduction reaction performance and reaction mechanism were investigated using an H-type electrolytic cell integrated with a rotating disk electrode. The optimized catalyst, AL-Fe0.25, exhibited a substantially lower Tafel slope (136 mV dec^–1) than bulk iron species, indicating accelerated electron transfer kinetics during the initial rate-determining step. Benefiting from these kinetics, AL-Fe0.25 exhibited a Faradaic efficiency of 80.8% for ammonia production and an ammonia yield rate of 9.27 mg h^–1 mg_cat^–1 at –0.75 V vs reversible hydrogen electrode. This performance was attributed to the cooperative interactions among the multiple Fe phases embedded in the conductive biomass-derived carbon framework. Long-term durability tests (12 h) showed a gradual decline in ammonia selectivity, which was ascribed to the corrosion of the graphene-like carbon framework induced by nitrate or reaction intermediates.</p>","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"3 8","pages":"2801–2811"},"PeriodicalIF":0.0,"publicationDate":"2026-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148822516","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}

{"title":"Hydrothermal Carbonization of Sugarcane Leaves and Bagasse for Solid Fuels: Process Optimization Using Response Surface Methodology","authors":"Praful Mane,&nbsp;Mohit Kumar,&nbsp;Madiha Farooq,&nbsp;Anand Singh,&nbsp;Raju Kumar Gupta,&nbsp;Himanshu Sharma","doi":"10.1021/acssusresmgt.6c00087","DOIUrl":"https://doi.org/10.1021/acssusresmgt.6c00087","url":null,"abstract":"<p>The cultivation and processing of sugarcane for sugar production generate significant agricultural and agro-industrial residues. The valorization of this generated residue for energy production offers a promising path to reduce net carbon emissions while addressing biomass waste management challenges. Hydrothermal carbonization (HTC) is an effective method for converting waste biomass, without drying, into energy-dense coal-like solid fuels. In this study, the HTC of sugarcane leaves (SCL) from farming and sugarcane bagasse (SCB) from the processing sugar industry was systematically investigated and optimized using a Box–Behnken response surface methodology (RSM). The effects of reaction temperature (160–220 °C), reaction time (4–12 h), and biomass-to-water ratio (1–2.5 g/30 mL) on hydrochar yield were evaluated, enabling the development of statistically significant predictive models. The maximum hydrochar yields of 78.30% for SCL and 82.00% for SCB were achieved at 160 °C, 12 h, and biomass loadings of 1.75 and 1.69 g, respectively. In addition to the optimization of hydrochar yield, the influence of HTC parameters on the fuel properties of hydrochar was widely assessed using proximate and ultimate analyses, calorific value estimation, thermogravimetric analysis (TGA), Fourier-transform infrared (FTIR) spectroscopy, and Brunauer–Emmett–Teller (BET) surface area measurements. The optimized hydrochars exhibited moderate increases in higher heating values to 15.88 MJ/kg (SCL) and 17.40 MJ/kg (SCB) as compared to 14.74 and 15.61 MJ/kg for raw SCL and SCB, respectively, indicating energy densification compared to the raw biomass. Notably, improvements in fuel characteristics, including enhanced carbon content and fuel ratio, indicate better combustion behavior and carbonization. A Van Krevelen plot highlighted the improved coal-like characteristics, showing the effectiveness of HTC in upgrading sugarcane residues into solid fuels. This work provides a comparative assessment of sugarcane leaves and bagasse valorization, supporting the potential option of HTC as a sustainable route for producing clean solid fuels from agro-industrial waste without the drying steps.</p>","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"3 8","pages":"2641–2654"},"PeriodicalIF":0.0,"publicationDate":"2026-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148822399","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}

{"title":"A Portable and Rechargeable Method for the Complete Recycling of Concrete","authors":"Maxwell Markey,&nbsp;Pardis Pourhaji,&nbsp;Dalton Vassalo,&nbsp;Nima Rahbar,&nbsp;Suzanne Scarlata","doi":"10.1021/acssusresmgt.6c00315","DOIUrl":"https://doi.org/10.1021/acssusresmgt.6c00315","url":null,"abstract":"<p>Concrete is the most widely used construction material in the world. Although concrete waste is mechanically ground and used as fill for construction projects, it cannot be recycled into components that can be reused for concrete structures and other purposes. This limitation is due to the inability to break cement bonds between the aggregates that form the intrinsic concrete structure. Here, we describe an electrochemical method to recycle concrete into its pure components, such as calcium carbonate, silicates, and metals (Al³⁺, Fe^2/3+, Ca²⁺) through reactions initiated by sulfuric acid and by selective precipitation to gypsum, sodium silicate, clay, iron nanoparticles, and calcium carbonate. These components were assessed and quantified by analytical techniques. We show that concrete decomposition and purification of its components can be arranged in a stepwise cyclic process to yield a device that is portable, allowing on-site recycling. The process only requires a small amount of input energy. A main component of the process is a three-chambered electrodialysis system that regenerates both acid and base in situ, enabling closed-loop direct raw concrete processing rather than preprocessed powdered feedstock, making it a methodology that is both portable and rechargeable. Overall, our process allows us to completely break down concrete matrices to create input products for new structurally sound concrete, supporting a circular economy.</p>","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"3 8","pages":"2859–2869"},"PeriodicalIF":0.0,"publicationDate":"2026-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148822420","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}

{"title":"Life Cycle Greenhouse Gas Emission Impact for Alternative Uses of Byproduct Hydrogen from Steam Cracking in the United States","authors":"Zhichao Chen,&nbsp;Adhika P. Retnanto,&nbsp;Mark A. Stadtherr,&nbsp;Michael Baldea,&nbsp;David T. Allen","doi":"10.1021/acssusresmgt.5c00673","DOIUrl":"https://doi.org/10.1021/acssusresmgt.5c00673","url":null,"abstract":"<p>More than 3 million metric tons of byproduct hydrogen are produced annually from steam crackers in the United States. Most of it is used for heat generation on-site. The greenhouse gas emission impacts of alternative scenarios for utilizing this large-scale production of byproduct hydrogen were evaluated, including exporting it to other processes as merchant hydrogen, using it as a chemical feedstock with captured CO₂ for methanol production, and generating electricity in fuel cells. Utilizing byproduct hydrogen as merchant hydrogen or as a chemical feedstock for methanol production results in a net reduction in greenhouse gas (GHG) emissions. Sale of byproduct hydrogen as merchant hydrogen results in lower GHG emissions (7.9 kg CO₂e/kg H₂) compared to standard merchant hydrogen production from steam methane reforming (&gt;10 kg CO₂e/kg H₂). Using byproduct hydrogen as a chemical feedstock for combined ethylene and methanol production has 13% lower emission estimates when natural gas replaces the displaced hydrogen in the cracking furnace to 34% when zero-carbon energy is used as the substitute. Electricity generation in fuel cells using byproduct hydrogen has similar GHG emissions to generation of electricity using high-efficiency gas turbines because when the hydrogen originally used for process heat is separated and used in the fuel cell, its original use for process heat is assumed to be replaced with natural gas. Overall, the greenhouse gas benefits associated with alternative uses of byproduct hydrogen could grow in the longer term if the current use of hydrogen in process heating is electrified.</p>","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"3 8","pages":"2573–2581"},"PeriodicalIF":0.0,"publicationDate":"2026-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148822395","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}

{"title":"Wood Fiber/Iron Salicylate Composite for Organic Dye Removal in Water Purification: Adsorption and Visible Light-Assisted Degradation","authors":"Gabriela A. Corrêa,&nbsp;Mário M. Q. Simões,&nbsp;Susana L. H. Rebelo","doi":"10.1021/acssusresmgt.6c00251","DOIUrl":"https://doi.org/10.1021/acssusresmgt.6c00251","url":null,"abstract":"<p>Cost-effective, nature-based advanced materials offer highly promising platforms for sustainable removal of recalcitrant dyes in water treatment technologies. In the present work, wood fibers (WFs) act as renewable support, providing essential anchoring functionalities, structural robustness, and chromophore units on the lignocellulose surface. The covalent immobilization of iron salicylate—a bio-derivable catalyst characterized by strong Fe(III) coordination and high oxidative stability—was achieved under ecofriendly microwave heating conditions, yielding iron loadings of 0.5 at %. The WF-[Fe(Sal)] material showed remarkable trade-off between catalytic activity and stability throughout photocatalytic dye degradation, in the presence of visible light and H₂O₂. Cationic dyes, rhodamine B (RB) and methylene blue (MB), were removed through a synergistic mechanism of adsorption and catalytic degradation, while the removal of the anionic dye, indigo carmine, was primarily driven by oxidative degradation. Under optimal conditions, cationic dye removal efficiencies as high as 97% for RB and 89% for MB within 150 min were achieved in the presence of H₂O₂ vs 82% for RB and MB in the absence of H₂O₂. As for the anionic dye indigo carmine, 93% removal was obtained in the presence of H₂O₂ vs 8% in the absence of H₂O₂. Furthermore, the catalytic material maintained its structural and chemical integrity over five cycles, with no detectable iron leaching.</p>","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"3 8","pages":"2777–2789"},"PeriodicalIF":0.0,"publicationDate":"2026-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148822401","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}

{"title":"Rapid Graphitization of Biomass Using Intensive Joule Heating","authors":"Lin Lin,&nbsp;Hyeongjun Koh,&nbsp;Shamala G. Krishnan,&nbsp;Ronan Pelé,&nbsp;Laurie Vion-Broussailles,&nbsp;Ange Nzihou,&nbsp;Kelsey B. Hatzell","doi":"10.1021/acssusresmgt.6c00133","DOIUrl":"https://doi.org/10.1021/acssusresmgt.6c00133","url":null,"abstract":"<p>Graphite plays an essential role in energy storage and electrochemical applications; however, the reliance on mining and petroleum-derived precursors in conventional graphite manufacturing presents environmental and economic challenges. Biomass offers a renewable and widely available alternative feedstock for synthetic graphite production. In this study, we explore the graphitization of cellulose as a model biomass precursor, focusing on how graphitization heating conditions influence microstructural evolution and electrochemical behavior. Using rapid Joule heating and conventional thermal treatments, we characterize the resulting biocarbon materials with respect to their crystallinity, grain size, and morphology. Electrochemical testing reveals that heating rate and duration significantly impact capacity retention and rate performance, with faster heating producing smaller grain sizes and improved high-rate capabilities. These findings demonstrate a direct link between processing conditions and electrochemical performance, highlighting biomass-derived graphite as a viable pathway toward distributed graphite production.</p>","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"3 8","pages":"2693–2701"},"PeriodicalIF":0.0,"publicationDate":"2026-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148822436","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}

{"title":"Chitin-Based Biorefinery-Derived Isosorbide Analogues as Rigid Building Blocks for Thermally Stable Polyacrylamides","authors":"Yasuhito Koyama,&nbsp;Sota Nozawa,&nbsp;Koji Yamamoto,&nbsp;Takuya Sagawa,&nbsp;Kazufumi Kohno,&nbsp;Atsushi Fukuoka,&nbsp;Hirokazu Kobayashi","doi":"10.1021/acssusresmgt.6c00310","DOIUrl":"https://doi.org/10.1021/acssusresmgt.6c00310","url":null,"abstract":"<p>Chitin is an abundant and renewable biomass resource with considerable potential as a feedstock for sustainable polymer materials. Here, we report a chitin-based biorefinery approach to isosorbide analogous acrylamide monomers and their radical polymerization into thermally stable polyacrylamides. An alcohol-free acrylamide monomer is successfully synthesized and polymerized under both redox-initiated and thermally initiated conditions, demonstrating robust polymerizability across diverse reaction protocols. The resulting polyacrylamide exhibits high thermal stability, with decomposition and glass transition temperatures comparable to those of common petroleum-derived engineering plastics. The polymer also shows a moderate yet meaningful fracture energy characteristic of glassy polymers. Mechanical analysis suggests that this energy dissipation is consistent with reversible interchain hydrogen-bonding interactions functioning as sacrificial bonds within the polymer physical network. In contrast, side-chain functionalization via phenyl carbamate formation markedly alters polymerization behavior and material properties, highlighting the critical roles of side-chain steric demand and intermolecular interactions in governing thermal stability and mechanical properties. Overall, this study demonstrates the potential of chitin-derived isosorbide analogues as sustainable, structurally rigid building blocks for high-performance polymer materials and provides molecular-level insights into the design of bio-based polymers with competitive thermal and mechanical properties.</p>","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"3 8","pages":"2850–2858"},"PeriodicalIF":0.0,"publicationDate":"2026-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148815756","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}

{"title":"Cesium Recovery from High-Salinity Solutions under Low-Alkalinity Conditions for High-Purity Cesium Chloride Preparation","authors":"Jianfu Man,&nbsp;Zhengke Li,&nbsp;Lihao Liu,&nbsp;Qi Cao,&nbsp;Xiaojia Li,&nbsp;Hongyun Yang,&nbsp;Yunquan Yang,&nbsp;Yanping Huang,&nbsp;Wensong Li,&nbsp;Zhengming Yi","doi":"10.1021/acssusresmgt.6c00247","DOIUrl":"https://doi.org/10.1021/acssusresmgt.6c00247","url":null,"abstract":"<p>The recycling of process liquors during lithium extraction from lepidolite enriches Cs, Rb, K, and Na, creating a high-salinity multicomponent liquor that complicates selective cesium recovery. Here, a simple t-BAMBP/sulfonated kerosene system was developed for Cs recovery under low alkalinity. At 0.1 mol/L OH^–, 1.0 mol/L t-BAMBP, for 5 min, and at an O/A ratio of 1:2, four-stage counter-current extraction achieved 99.24% Cs extraction with a Cs/Rb separation factor of 408.55. Five-stage HCl scrubbing removed 99.66% Rb and 100% K with limited Cs loss, and the spent scrubbing solution was recycled to improve Cs recovery. Subsequent stripping and recrystallization produced CsCl with 99.5% purity, while 60 h continuous operation showed stable extraction performance and less than 1% extractant loss. Slope analysis, FT-IR, and ¹H NMR indicate a cation-exchange mechanism driven by phenolic hydroxyl deprotonation. In the real liquor, increasing alkalinity increased the apparent participation of t-BAMBP and shifted the apparent solvation state toward a CsOR·3ROH-like state. This work provides a low-alkalinity route for selective Cs recovery from post-lithium-extraction liquor.</p>","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"3 8","pages":"2766–2776"},"PeriodicalIF":0.0,"publicationDate":"2026-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148815640","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}