Journal of Environmental Chemical Engineering最新文献

{"title":"Synergistic catalytic filtration using Co-C/PVDF blending membrane activated by peroxymonosulfate: Fouling control and DOM transformation in real textile wastewater","authors":"Di Liu ,&nbsp;Yan Wang ,&nbsp;Xue He ,&nbsp;Shasha Liu ,&nbsp;Wei Kong ,&nbsp;Hui Zhang ,&nbsp;Qiyao Chen ,&nbsp;Zhenxia Song ,&nbsp;Hai Tang","doi":"10.1016/j.jece.2025.119297","DOIUrl":"10.1016/j.jece.2025.119297","url":null,"abstract":"<div><div>Ultrafiltration is widely employed for the advanced treatment of real textile wastewater; however, it encounters significant challenges of low separation efficiency and severe membrane fouling caused by residual organic matter (DOM) present in the conventionally treated biodegradable effluent. This study developed a blending membrane by incorporating cobalt-carbon (Co-C) nanocomposites, derived from ZIF-67, with polyvinylidene fluoride (PVDF) for synergistic filtration and peroxymonosulfate (PMS)-activated radical oxidation of real textile wastewater. The results indicate that an efficient removal of 62.9 % of total organic carbon-based DOM was achieved through online filtration-oxidation at a PMS concentration of 0.5 g/L, which is 3.7 times greater than the performance of pristine PVDF filtration. Furthermore, the system exhibited exceptional antifouling properties, evidenced by a flux recovery rate (FRR) of 71.2 % and a reduction in irreversible fouling ratio (R_ir=22.7 %), attributed to the in-situ oxidative degradation of foulants. Molecular-level analysis using three-dimensional fluorescence excitation-emission matrix and fourier transform ion cyclotron resonance mass spectrometry revealed that SO₄^•−/•OH radicals preferentially degraded aromatic DOM components. The membrane’s surface roughness reduction and loose foulant layer formation further alleviated fouling. This work provides a preliminary data for textile wastewater remediation and deepens the mechanistic understanding of catalytic membrane processes.</div></div>","PeriodicalId":15759,"journal":{"name":"Journal of Environmental Chemical Engineering","volume":"13 6","pages":"Article 119297"},"PeriodicalIF":7.2,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145097795","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}

{"title":"Machine learning for predicting and optimizing the CO2 uptake in porous organic polymers","authors":"Hamid Zentou ,&nbsp;Ali M. Tayeb ,&nbsp;Islam M. Tayeb ,&nbsp;Mahmoud M. Abdelnaby","doi":"10.1016/j.jece.2025.119315","DOIUrl":"10.1016/j.jece.2025.119315","url":null,"abstract":"<div><div>Porous organic polymers (POPs) are promising materials for carbon capture due to their high surface area, tunable porosity, and structural versatility. In this study, a machine learning (ML) framework was developed to predict and optimize the CO₂ adsorption capacity of POPs using structural and process-related parameters. A dataset of 190 entries was compiled from experimental literature, incorporating features such as surface area, pore volume, porosity, temperature, and pressure. Five ML models—Random Forest (RF), Gradient Boosting (GB), Support Vector Regression (SVR), Artificial Neural Network (ANN), and a hybrid RF+GB ensemble—were trained and evaluated using 5-fold cross-validation and grid search for hyperparameter tuning. The Gradient Boosting model exhibited the highest performance, with R² = 0.963, MAE = 0.166, and MAPE = 15.39 % on the test set. Feature importance analysis revealed that pressure and temperature were the most influential factors, while surface area also contributed significantly to predictive accuracy. To further enhance CO₂ uptake, a Genetic Algorithm (GA) was integrated with the ML model to identify optimal material properties and operating conditions. The GA-optimized system predicted maximum uptakes of 4.5 mmol/g at 273 K and 3.2 mmol/g at 298 K. This integrated ML-GA approach demonstrates a powerful tool for guiding the rational design of high-performance POPs and optimizing carbon capture conditions. It enables efficient screening of material candidates and operating scenarios, supporting accelerated development of adsorption-based CO₂ capture technologies.</div></div>","PeriodicalId":15759,"journal":{"name":"Journal of Environmental Chemical Engineering","volume":"13 6","pages":"Article 119315"},"PeriodicalIF":7.2,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145097181","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}

{"title":"Microbial electrochemical reduction of chromate in groundwater driven by Thiobacillus denitrificans","authors":"Luyao Wang,&nbsp;Siming Chen,&nbsp;Song Wang,&nbsp;Xinxin Li,&nbsp;Baogang Zhang","doi":"10.1016/j.jece.2025.119307","DOIUrl":"10.1016/j.jece.2025.119307","url":null,"abstract":"<div><div>Chromium is a strategic metal widely used in various industrial applications. However, its toxic form—hexavalent chromium [Cr(VI)]—is frequently detected in groundwater, posing serious risks to both the environment and human health. This study explored the microbial electrochemical reduction of Cr(VI) in groundwater using <em>Thiobacillus denitrificans</em> with electrode-derived free electrons as the electron donor. In bioelectrochemical systems (BES), 76.9 ± 1.9 % of Cr(VI) was removed by the end of the batch experiment—significantly higher than the removal observed in abiotic controls and biological systems without an applied voltage. Notably, <em>T. denitrificans</em> attached to the cathode and achieved a much greater Cr(VI) removal efficiency (70.8 ± 1.5 %) compared to the suspended cells (30.6 ± 3.4 %). Analysis of the cathode precipitates confirmed that Cr(VI) was microbially reduced to its less toxic trivalent form [Cr(III)]. Protein analysis showed a substantial increase in cathode-attached biomass, reaching 207.4 ± 22.7 mg/g VSS. Enzyme assays demonstrated that the levels of oxidoreductases (e.g., dehydrogenase, catalase) and electron transfer mediators (e.g., cytochrome c) were significantly elevated under electrical stimulation. Furthermore, RT-qPCR analysis of chromate reductase genes (e.g., <em>chrA</em>, <em>yieF</em>) and electron transfer components (e.g., <em>mtrC</em>, <em>omcB</em>) showed substantial upregulation in gene expression. Collectively, these findings indicate that Cr(VI) reduction by <em>T. denitrificans</em> in BES is facilitated by the combined action of Cr(VI) reductases and electron transfer-related pathways. This study provides strong evidence supporting microbial electrochemical systems as a promising and sustainable approach for remediating Cr(VI)-contaminated groundwater.</div></div>","PeriodicalId":15759,"journal":{"name":"Journal of Environmental Chemical Engineering","volume":"13 6","pages":"Article 119307"},"PeriodicalIF":7.2,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145097597","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}

{"title":"Bacteria/alginate @ agarose-hydrogel for the removal of COVID-19 antivirals ribavirin: An integrated scheme of concentration and biotransformation","authors":"Yongtao Cheng ,&nbsp;Zhongyu Wang ,&nbsp;Ying Wang ,&nbsp;Chuanyue Peng ,&nbsp;Yuanyuan Wu ,&nbsp;Shaopeng Chen ,&nbsp;An Xu ,&nbsp;Xinwei Zheng ,&nbsp;Ying Liu","doi":"10.1016/j.jece.2025.119287","DOIUrl":"10.1016/j.jece.2025.119287","url":null,"abstract":"<div><div>The widespread use of antivirals during the pandemic has escalated their detection as emerging organic pollutants in aquatic systems. While chemical oxidation remains the dominant approach for degrading ribavirin (RBV), a representative antiviral, more practical alternatives such as bacterium degradation lack systematic investigation. This study addressed this gap by isolating three functional bacterial strains from medical waste, achieving 88–95 % RBV removal via synergistic mechanisms: adsorption by extracellular substances followed by intracellular enzymatic biodegradation. Furthermore, conserved enzyme active sites were identified by combining molecular docking and UPLC-MS/MS analysis, suggesting the similar metabolic pathways of RBV by three bacteria strains. To address the challenge of cell leakage in fluctuating systems, a stable bacteria/alginate @ agarose hydrogel was engineered enabling simultaneous RBV degradation (86.2 % efficiency) and sustained biomass retention for over 40 days. This immobilized biohybrid system exhibited exceptional operational stability under continuous flow conditions, presenting a scalable solution for advanced wastewater treatment and ecological remediation of antiviral-contaminated aquatic environments.</div></div>","PeriodicalId":15759,"journal":{"name":"Journal of Environmental Chemical Engineering","volume":"13 6","pages":"Article 119287"},"PeriodicalIF":7.2,"publicationDate":"2025-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145097170","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}

{"title":"Sustainable corrosion inhibition of EH40 steel in seawater using carboxymethyl chitosan/L-lysine composite","authors":"Hongyu Wang,&nbsp;Zhipeng Liang,&nbsp;Yiyong Wang,&nbsp;Hui Jin,&nbsp;Haoyu Cao,&nbsp;Chuchen Yang","doi":"10.1016/j.jece.2025.119271","DOIUrl":"10.1016/j.jece.2025.119271","url":null,"abstract":"<div><div>The corrosion inhibition of marine engineering steels in oceanic environments remains a critical challenge for various industrial applications. In this study, a non-toxic and environmentally benign composite corrosion inhibitor was developed by blending carboxymethyl chitosan (CMCS) and L-lysine (Lys). Weight loss measurements, electrochemical tests and surface characterization were performed at room temperature (25 ± 2℃) to systematically evaluate and study the inhibitory effects and mechanism of the composite inhibitor on EH40 steel corrosion in seawater under varying concentration ratios (CMCS:Lys) and immersion durations (2 h and 3, 7, 14 days). And simulate the corrosion inhibitor molecules and surface adsorption behavior through DFT and MD calculations to support the experimental content. The results demonstrated that the composite inhibitor effectively suppressed the seawater-induced corrosion of EH40 steel. The optimal corrosion inhibition performance was achieved at a CMCS:Lys concentration ratio of 3:2, where the protective film on the steel surface exhibited the maximum stability and compactness. Also, the corrosion inhibition rate and absolute synergistic parameters of the corrosion inhibitor increase with the increase of immersion time. Surface analysis was conducted in combination with theoretical calculations to reveal that CMCS and Lys molecules possess multiple active adsorption sites, enabling their adsorption onto the EH40 steel surface via N and O heteroatoms. This adsorption mechanism facilitated the formation of a stable passivation layer, thereby leading to the exceptional inhibitory effect on corrosion.</div></div>","PeriodicalId":15759,"journal":{"name":"Journal of Environmental Chemical Engineering","volume":"13 6","pages":"Article 119271"},"PeriodicalIF":7.2,"publicationDate":"2025-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145097633","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}

{"title":"Oxygen vacancies induced by Zn2+ doping initiated ozone decomposition to produce more reactive oxygen species for effective degradation of norfloxacin using Cu1-xZnxFe2O4 catalyst","authors":"Bing Shi ,&nbsp;Lanhe Zhang ,&nbsp;Hui Liu ,&nbsp;Yiran Li","doi":"10.1016/j.jece.2025.119286","DOIUrl":"10.1016/j.jece.2025.119286","url":null,"abstract":"<div><div>To promote the electron circulation and enhance the stability of the catalyst, Cu_1-xZn_xFe₂O₄ (x = 0, 0.2, 0.5, 0.8) catalysts with abundant oxygen vacancies were synthesized using sol-gel combustion method. The effects of catalyst dosage, ozone concentration and initial solution pH on catalytic degradation efficiency of norfloxacin (NOR) were investigated. The morphology and structure of the catalysts were analyzed and its catalytic ozonation mechanisms was explored. The results showed that Cu_0.2Zn_0.8Fe₂O₄ catalyst was black nanoparticle powder with good stability and agglomeration. Removal efficiency of NOR could reach the highest value of 92 % and the <em>k</em>_obs of first-stage reaction was 0.0752 min⁻¹ under O₃ concentration of 3.4 mg·L⁻¹, initial pH 7 and catalyst dosage of 0.1 g·L⁻¹ in Cu_0.2Zn_0.8Fe₂O₄/O₃ system. Removal efficiency of NOR was slight decreased by 4.56 % after 5 cycles of the catalyst. Zn²⁺, as an “inert” dopant, reshaped the local electronic environment and surface properties of CuFe₂O₄ through unique electronic regulation and structural stability in redox reaction, ultimately achieving a significant improvement in catalytic ozonation efficiency. Zn²⁺ occupied Cu²⁺ sites in the crystal structure and blocked the pathway of Cu as electron acceptor in the reduction process, forming Zn-O-Fe bimetallic bonds and leading to lattice deformation and the generation of more O_V in the catalyst. The surface hydroxyl groups formed by O_V adsorption were active sites for O₃ decomposition to produce ∙OH, ∙O₂^- and ¹O₂. Among them, ∙O₂^- and ¹O₂ were dominant reactive oxygen species for effective degradation of NOR.</div></div>","PeriodicalId":15759,"journal":{"name":"Journal of Environmental Chemical Engineering","volume":"13 6","pages":"Article 119286"},"PeriodicalIF":7.2,"publicationDate":"2025-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145097732","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}

{"title":"Enhanced photothermal synergistic catalysis of dry reforming of methane on high metal dispersion MOF-derived Ni/CeO2 catalysts","authors":"Yuhao Liu ,&nbsp;Xu Liu ,&nbsp;Dan Li ,&nbsp;Tengfei Li ,&nbsp;Zhao Jiang ,&nbsp;Yang Guo","doi":"10.1016/j.jece.2025.119293","DOIUrl":"10.1016/j.jece.2025.119293","url":null,"abstract":"<div><div>A series of MOF-derived Ni/CeO₂ (MD-Ni/CeO₂) catalysts with varying loadings (0.5 wt%-5wt%) were successfully synthesized for photothermal synergistic catalysis of dry reforming of methane (PTSC-DRM). BET and HR-TEM results indicated that MD-Ni/CeO₂ exhibited high specific surface area and nickel dispersion. A systematic study was conducted to investigate the effect of nickel loading on the activity and stability through catalytic evaluation and characterization. The results demonstrated that higher loadings tend to cause carbon deposition on the catalyst, while lower loadings are not favorable for H₂ production. The MD-Ni/CeO₂ catalyst with a 3 wt% loading was identified as the optimal concentration, achieving CO₂ and CH₄ conversion of 72.42 % and 66.93 % at 650°C, respectively, along with H₂ and CO yields of 169.22 and 182.26 mmol·g⁻¹·h⁻¹. It also maintained good stability during a continuous catalytic evaluation over 70 h. XPS, CO pulse adsorption, and H₂-TPR results indicate that the 3 wt% MD-Ni/CeO₂ catalyst possesses relatively stable nickel nanoparticles, the highest concentration of oxygen vacancies, and the most active oxygen species. This enhances the synergistic effect between Ni and CeO₂, thereby improving light absorption capacity and carbon dioxide activation ability, which in turn enhances catalytic activity and stability. Furthermore, density functional theory revealed the promoting effect of oxygen vacancies on CO₂ adsorption on MD-Ni/CeO₂.</div></div>","PeriodicalId":15759,"journal":{"name":"Journal of Environmental Chemical Engineering","volume":"13 6","pages":"Article 119293"},"PeriodicalIF":7.2,"publicationDate":"2025-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145097594","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}

{"title":"Ammonia stress and mechanistic impact on NO2- and S0 accumulation in a double short-cut sulfur autotrophic denitrification (DSSADN) system","authors":"Pengze Dang ,&nbsp;Wei Chen ,&nbsp;Chengang Wang ,&nbsp;Canhui Zhou ,&nbsp;Chen Lyu ,&nbsp;Yan Yuan ,&nbsp;Xiang Li","doi":"10.1016/j.jece.2025.119295","DOIUrl":"10.1016/j.jece.2025.119295","url":null,"abstract":"<div><div>Double short-cut sulfur autotrophic denitrification (DSSADN), targeting the accumulation of NO₂^--N and S⁰, not only enhances the nitrogen removal efficacy of the Anammox process but also avoids SO₄^2- contamination. Ammonia is an important inhibitor faced by the DSSADN coupled anammox process. This study explores the effects of different ammonia concentrations and forms on nitrogen and sulfur conversion, functional enzyme activities and microbial communities in the DSSADN process. Results indicate that at an NH₄⁺-N concentration of 106 mg/L (22 mg/L free ammonia (FA)), the relative abundance of <em>nirK</em> decreases, promoting NO₂^--N accumulation up to 95 %. When NH₄⁺-N reached 298 mg/L (62 mg/L FA), the relative abundance of <em>soxB</em> declined, which promoted an increase in S⁰ accumulation to 92 %. When NH₄⁺-N reached 250 mg/L (52 mg/L FA), the abundances of both <em>narG</em> <!--> and <em>sqr</em> decreased, leading to inhibited NO₂⁻-N reduction and S^2- oxidation, and decreasing the removal rates of NO₂⁻-N and S^2-. The performance of the DSSADN system can be fully restored by reducing the FA concentration through the pH. With the increased FA concentration, <em>Sulfurimonas</em> gradually increases, while <em>Thiobacillus</em> decreases.</div></div>","PeriodicalId":15759,"journal":{"name":"Journal of Environmental Chemical Engineering","volume":"13 6","pages":"Article 119295"},"PeriodicalIF":7.2,"publicationDate":"2025-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145097168","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}

{"title":"In-situ Ti doping induces distortion of mullite whiskers in fly ash-based ceramic membranes for enhanced oil-water separation performance","authors":"Mengdan Huo ,&nbsp;Tong Yu ,&nbsp;Yu Wang ,&nbsp;Bo Wang ,&nbsp;Yanxia Guo ,&nbsp;Zhibin Ma ,&nbsp;Yajun Li ,&nbsp;Jian-ming Gao","doi":"10.1016/j.jece.2025.119281","DOIUrl":"10.1016/j.jece.2025.119281","url":null,"abstract":"<div><div>Oil-in-water emulsions in oily wastewater effluents and accumulation of fly ash pose environmental issues. Mullite ceramic membranes, prepared leveraging the Al₂O₃ and SiO₂ components in fly ash, offer potential for wastewater treatment. However, the impact of TiO₂ impurities in fly ash on the microstructure and oil-water separation performance of ceramic membranes remains uncertain. This study analyzed the effects of in-situ TiO₂ doping on the crystal phase composition, pore structure, wettability, and oil-water separation performance of whisker-structured mullite ceramic membranes. Ti^4 + ions were successfully incorporated, achieving solid solution with 4 wt% TiO₂ within the mullite framework. TiO₂ doping induced lattice distortion in mullite. This enhanced internal crystal defects, boosted porosity, and modified surface energy, thereby improving hydrophilicity. The mullite ceramic membrane doped with 4 wt% TiO₂ exhibited optimal hydrophilicity (WCA = 22°) and underwater oleophobicity (UOCA = 156°), which improved its selective permeability. The permeation flux of the ceramic membrane increased significantly, reaching 810.76 L·m⁻²·h⁻¹ when doped with 4 wt% TiO₂), while the oil rejection rate was 96.4 %. Notably, during the first five minutes, the oil rejection rate of the ceramic membrane doped with 4 wt% TiO₂ increased to 95.1 %. This study offers a theoretical foundation for preparing high-efficiency oil-water separating mullite ceramic membranes from fly ash, particularly aiding in optimizing ceramic membrane performance through structural design and regulation strategies.</div></div>","PeriodicalId":15759,"journal":{"name":"Journal of Environmental Chemical Engineering","volume":"13 6","pages":"Article 119281"},"PeriodicalIF":7.2,"publicationDate":"2025-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145097169","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}

{"title":"Flash upcycling waste activated carbon into high-performance sodium-ion anodes via joule heating: Dual regulation of microcrystals and pore configuration","authors":"Yong Gao,&nbsp;Zuxu Wang,&nbsp;You Li,&nbsp;Ronghuan Lv,&nbsp;Jiale Chen,&nbsp;Zhenhua Dong,&nbsp;Wenjun Zhang,&nbsp;Rongtao Zhu","doi":"10.1016/j.jece.2025.119267","DOIUrl":"10.1016/j.jece.2025.119267","url":null,"abstract":"<div><div>The reuse of Waste Activated Carbon (WAC) faces inherent challenges: even after impurity removal, the collapsed pore structure still significantly reduces its adsorption efficiency. When applied as anode materials for high-performance Sodium-Ion Batteries (SIBs), their intrinsically disordered structure and unsuitable pore configuration further limit the electrochemical performance. This study proposes using Flash Joule Heating (FJH) to instantaneously treat WAC, achieving simultaneous “graphite-like carbon microcrystalline domain expansion” and “pore reconstruction” within seconds, thereby transforming “small pore entrances with large cavities” into “large pore entrances with small cavities”. XRD/TEM analyses confirmed that FJH treatment generated abundant graphite-like microcrystalline structures (La≈4.77 nm). BET analysis revealed the pore entrance expanded from 5.72 nm to 6.66 nm, while the cavity volume decreased from 0.098 cm³ ∙g⁻¹ to 0.068 cm³ ∙g⁻¹. This long-range ordered graphene-like microcrystalline layered structure significantly enhances the plateau capacity. Meanwhile, the open-pore structure with larger pore size and smaller pore volume effectively accommodates stress from repeated Na⁺ insertion/extraction, preventing pore collapse. The optimized wac_40a electrode demonstrated a significant improvement in reversible capacity from 161.9 mAh∙g⁻¹ to 374.7 mAh∙g⁻¹ (0.01–2.0 V, 25 mA∙g⁻¹), with plateau capacity contribution increasing from 22.9 % to 57.0 %. It maintained 92.70 % capacity retention after 1700 cycles at 200 mA∙g⁻¹. This work pioneers a novel pathway for value-added utilization of WAC and fabrication of high-performance SIBs anodes.</div></div>","PeriodicalId":15759,"journal":{"name":"Journal of Environmental Chemical Engineering","volume":"13 6","pages":"Article 119267"},"PeriodicalIF":7.2,"publicationDate":"2025-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145061005","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}