{"title":"Local structural origin of relaxor antiferroelectric behavior in NaNbO3-based ceramics","authors":"Xiangyu Meng, Liran Yuan, Dongxu Li, Pengbing Wang, Qinghu Guo, Xiaoyan Gan, Zhonghua Yao, Hanxing Liu, Jinsong Wu, Shujun Zhang, Hua Hao","doi":"10.1016/j.cej.2025.163109","DOIUrl":"https://doi.org/10.1016/j.cej.2025.163109","url":null,"abstract":"Relaxor-antiferroelectrics (relaxor-AFEs), known for their double polarization–electric field (<em>P-E</em>) hysteresis loops and relaxor characteristics, exhibit outstanding energy storage performance compared to other dielectric materials. However, the origins of their antiferroelectric-like behavior and relaxor features remain unclear due to their complex local structure. In this study, we designed relaxor-AFEs with a high degree of relaxor component and stable antiferroelectric behavior. The recoverable energy density (<em>W</em><sub>rec</sub>) of up to 4.6J/cm<sup>3</sup> and energy efficiency of ∼ 79 % were achieved in a 0.76NaNbO<sub>3</sub>-0.16Na<sub>0.5</sub>Bi<sub>0.5</sub>TiO<sub>3</sub>-0.08CaTiO<sub>3</sub> ceramic, demonstrating excellent thermal and frequency stability. The multiphase local polarization configuration was confirmed by atomic-resolution annular dark-field scanning transmission electron microscopy (ADF STEM). Additionally, integrated differential phase contrast (iDPC) images revealed an enhanced antiferrodistortion (AFD) induced by incorporating component with low tolerance factor, contributing to stable antiferroelectric behavior. The relationship between chemical heterogeneity, polarization configuration and energy storage performance was systematically established. This work provides insights into the structure origin and underlying mechanisms for relaxor-AFE performance, with potential implications to guide the development of advanced energy-storage dielectric materials.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"67 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143877851","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Insight into cyclodextrin hybrid framework formation mechanism to develop a universal vehicle for improving mitochondrial homeostasis","authors":"Danyu Lv, Jiane-Kang Liu, Huanyu Xu, Xinyu Tao, Ningjin Zhang, Yongguang Guan, Lingjun Zheng","doi":"10.1016/j.cej.2025.162926","DOIUrl":"https://doi.org/10.1016/j.cej.2025.162926","url":null,"abstract":"Concept of organic anion-γ-cyclodextrin (γ-CD)-containing hybrid framework (CD-HF-1) was proposed for developing novel complex materials.<!-- --> <!-- -->Herein, we revealed the formation mechanisms of a series of organic anion-CD-HF-1 and found organic anion-CD-HF-1 is a promising delivery system. Employing pyrroloquinoline quinone (PQQ) as a representative organic anion, we elaborated the two stages of PQQ-CD-HF-1 formation. Kinetic analysis of PQQ-CD-HF-1 formation revealed that at stage I, PQQ anions encapsulate into CD-MOF-1 and bind to K<sup>+</sup> cations, partially retaining the crystallinity of CD-MOF-1 and exhibiting excellent water solubility. At stage II, PQQ anions displace γ-CD, leading to γ-CD dissolving in solvent. Meanwhile, PQQ expose on framework surface and gradually co-crystallize with DMF, forming a rod-like structure with significantly reduced water solubility. The crystalline state of PQQ-CD-HF-1 serves as the defining parameter distinguishing these two stages. The spontaneous synthesis of PQQ-CD-HF-1 is driven by electrostatic interactions. PQQ-CD-HF-1 formed at stage I has a desirable PQQ loading capacity achieving surprising 48.7 %. Functionally, PQQ-CD-HF-1 prepared at the first stage significantly enhances stress resistance in <em>Caenorhabditis elegans</em> (<em>C. elegans</em>), particularly under heat and oxidative stress, by maintaining protein homeostasis. Furthermore, PQQ-CD-HF-1 stimulates mitochondrial biogenesis and improves overall mitochondrial function by activating the AMP-activated protein kinase (AMPK) signaling pathway in <em>C. elegans</em>. This study provides new insights into the design and functional applications of hybrid frameworks, highlighting the potential of PQQ-CD-HF-1 in improving stress resistance and regulating mitochondrial homeostasis.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"6 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143877849","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yuyang Feng, Yifei Zhang, Feng Guo, Lin Wang, Senjian Han, Lina Xu, Shiqiang Wang, Tianlong Deng
{"title":"Acid-resistant nanofiltration membrane engineered by sulfonated covalent organic framework for lithium recovery from spent lithium-ion batteries leaching solutions","authors":"Yuyang Feng, Yifei Zhang, Feng Guo, Lin Wang, Senjian Han, Lina Xu, Shiqiang Wang, Tianlong Deng","doi":"10.1016/j.cej.2025.163069","DOIUrl":"https://doi.org/10.1016/j.cej.2025.163069","url":null,"abstract":"Nanofiltration (NF) represents a promising green technology for the selective separation of Li<sup>+</sup> from the acid leaching solution of spent lithium-ion batteries (LIBs). However, the conventional semi-aromatic polyamide NF membrane is vulnerable to H<sup>+</sup> attack, causing the severe degradation of both membrane’s structure and its separation performance. In this work, an acid-resistant NF membrane was fabricated by incorporating sulfonated covalent organic frameworks (COF-SO<sub>3</sub>H), which served as a muti-functional combination of aqueous phase reactive monomer, diffusion regulator and charge-tunable nanofillers. During the interfacial polymerization process, COF-SO<sub>3</sub>H contributed to form a relatively loose and conductive PA layer, which was linked by tertiary amide and sulfonamide groups. As a result, the NF membrane was endowed with outstanding antibacterial and acid-resistant properties. Under an electric field, when using a high-salinity Na<sub>2</sub>SO<sub>4</sub> of 15 g·L<sup>-1</sup> as feed solution, the NF membrane exhibited a water permeance of 77.60 L·m<sup>−2</sup>·h<sup>−1</sup>·MPa<sup>−1</sup>. This value was an order magnitude higher than that of the pristine PA membrane, while achieving a high Na<sub>2</sub>SO<sub>4</sub> rejection of 99.8 %. Even after long-term immersion in 1.0 mol·L<sup>-1</sup> H<sub>2</sub>SO<sub>4</sub> for 14 days, it still demonstrated an uncompromising Na<sub>2</sub>SO<sub>4</sub> rejection of over 96 %. In a simulated leaching solution of spend LIBs, it displayed high separation factors of <em>S</em><sub>Li+/Ni2+</sub>, <em>S</em><sub>Li+/Co2+</sub>, <em>S</em><sub>Li+/Mn2+</sub>, which reached 11.7, 12.4 and 10.8, respectively. This work paves the way for an environmentally-friendly approach to developing durable NF membranes for recycling lithium from the leaching solution of spent LIBs.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"15 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143877850","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Ultra-stable all-solid-state lithium metal batteries facilitated by in-situ LiF-rich single-ion conductor composite polymer electrolytes","authors":"Jiaze Li, Rong Yang, Aoyi Jiang, Qianwei Zhang, Xin Dong, Hongyu Shang, Yinglin Yan, Yunhua Xu, Jou-Hyeon Ahn","doi":"10.1016/j.cej.2025.162820","DOIUrl":"https://doi.org/10.1016/j.cej.2025.162820","url":null,"abstract":"The composite polymer electrolyte (CPE) displays the predictable potential to achieve high-performance of all-solid-state lithium metal batteries (ASSLMBs). However, due to the slow kinetics of Li<sup>+</sup> transfer and the simultaneous transfer of Li<sup>+</sup> and anions, the ionic conductivity of CPE is insufficient, and the interface stability between electrolyte and lithium anode is poor, which hinders its practical application on ASSLMBs. In this work, Zr-MOF as a single-ion conductor, composted with polyethylene oxide (PEO) and Li[N(SO<sub>2</sub>CF<sub>3</sub>)<sub>2</sub>] (LiTFSI) to prepare an in-situ LiF-rich single-ion conductor (PLZM-7) composite polymer electrolytes. The results suggest that the decomposition energy barrier of TFSI<sup>−</sup> is effectively lowered though Zr-O strong charge transfer between Zr-MOF and TFSI<sup>−</sup>, resulting in the in-situ formation of LiF in PLZM-7. This significantly enhances the lithium-ion transference number (0.89) and the ionic conductivity (6.4 × 10<sup>−4</sup> S·cm<sup>−1</sup> at 60°C), while also expanding the electrochemical window (5.42 V). The critical current density of the Li|PLZM-7|Li symmetrical battery is as high as 0.43 mA·cm<sup>−2</sup>, and the overpotential of Li plating/stripping is only 0.056 V after 750 h, indicating that the in-suit LiF-rich single-ion conductor solid-sate electrolyte PLZM-7 has excellent stability to lithium, The LiFePO<sub>4</sub>|PLZM-7|Li exhibits a low-capacity decay rate as 1.04 % after 100 cycles at 0.1C, revealing a good application prospect in ASSLMBs.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"44 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143877926","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ruming Liu, Ying Li, Yan Liu, Yixuan Wang, Qiuyue Si, Dorothy Araba Yakoba Agyapong, Juan Feng, Ruiqin Fang, Lixia Tang, Fei Cao, Hongjuan Zeng
{"title":"Corrigendum to “A highly sensitive and reusable magnetic nano-electrochemical biosensor for the detection of the liver cancer biomarker heat shock protein 70” [Chem. Eng. J. 505 (2025) 159860]","authors":"Ruming Liu, Ying Li, Yan Liu, Yixuan Wang, Qiuyue Si, Dorothy Araba Yakoba Agyapong, Juan Feng, Ruiqin Fang, Lixia Tang, Fei Cao, Hongjuan Zeng","doi":"10.1016/j.cej.2025.162895","DOIUrl":"https://doi.org/10.1016/j.cej.2025.162895","url":null,"abstract":"The authors regret “In the originally published version of this article, the corresponding author information was incomplete. Cao Fei should be included as the corresponding author. The correct and complete author list is as follows: Ruming Liu<sup>a</sup>, Ying Li<sup>b,c,d</sup>, Yan Liu<sup>a</sup>, Yixuan Wang<sup>a</sup>, Qiuyue Si<sup>a</sup>, Dorothy Araba Yakoba Agyapong<sup>a,e</sup>, Juan Feng<sup>a</sup>, Ruiqin Fang<sup>a</sup>, Lixia Tang<sup>a</sup>, Fei Cao<sup>b,c,d</sup>*, Hongjuan Zeng<sup>a</sup>*”.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"219 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143876192","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Multi-shank flexible implantable neural interface for long-term olfactory neuron recording toward odor perception","authors":"Qunchen Yuan, Jiale Wang, Chunlian Qin, Shunuo Shang, Haoze Xu, Fan Wu, Yong Qiu, Haoting Zhang, Rui Sun, Ping Wang, Liujing Zhuang, Hao Wan","doi":"10.1016/j.cej.2025.162987","DOIUrl":"https://doi.org/10.1016/j.cej.2025.162987","url":null,"abstract":"Odor perception systems based on the chip-organism hybrid strategy display significant advantages in detection specificity and sensitivity. However, due to poor biocompatibility and the extreme mismatch of Young’s modulus, the relative displacement between cells and the electrodes leads to recording failures, thereby shortening the lifespan of the chip-organism hybrid models. Here, we proposed a multi-shank flexible implantable neural interface suitable for large-scale recording of olfactory neurons to extend the working lifetime of the model. First, SU-8 thin film-based neural interfaces were fabricated by micro-nano processing to reduce the rigidity of the neural recording chips. Next, the recording performance was improved by the <em>in situ</em> deposition of platinum nanoparticles. The mechanical properties of the neural interfaces were significantly enhanced to implantation when they were wrapped with a water-soluble material. Afterward, we combined the neural interfaces with rat olfaction to build a polymer-organism hybrid electronic nose for odor perception. We found that the multi-shank flexible implantable neural interface could record high-quality signals of the rat olfactory bulb for up to 11 months. Finally, by using pattern recognition algorithms, the polymer-organism hybrid electronic nose could achieve an odor perception and recognition accuracy of 97.5 % when the rats were awake. This polymer-organism hybrid strategy has great potential for studying long-term olfactory functions and enhancing the odor perception capabilities of chip-organism hybrid devices.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"10 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143877862","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Efficient removal of typical perfluorinated compounds using NH2-MCM-41: Insights into adsorption mechanisms","authors":"Xiaosong Zhou, Xukai Li, Weirui Chen, Laisheng Li","doi":"10.1016/j.cej.2025.163108","DOIUrl":"https://doi.org/10.1016/j.cej.2025.163108","url":null,"abstract":"Perfluorinated compounds (PFCs), which were difficult to biodegrade and posed significant ecological and health risks, had made their removal an urgent global challenge. Herein, NH<sub>2</sub>-MCM-41 was designed by modifying MCM-41 with 3-aminopropyltriethoxysilane (APTS) to remove PFOA, PFOS and OBS. X-ray powder diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS) results indicated that though the implanting of NH<sub>2</sub>– on MCM-41 decreased S<sub>BET</sub> and pore size, but it dramatically increased the PFOA, PFOS and OBS adsorption capacity. The maximum uptake y capacity of NH<sub>2</sub>-MCM-41 increased from 14.41 to 350.61, 19.53 to 445.11, and 28.6 to 452.98 mg/g for PFOA, PFOS and OBS, respectively. Three PFCs adsorptions were more favorable under acidic condition. Both the pseudo-second-order and intra-particle diffusion models provided a good fit for the kinetic data, and the adsorption isotherms were well described by the Langmuir and Freundlich models. The primary adsorption mechanisms involved hydrophobic interactions, electrostatic forces, H bond interaction and micellar or sub-micellar effects. This study demonstrated valuable insights into the applicability of NH<sub>2</sub>-MCM-41 for environmental remediation.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"9 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143877864","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Covalent organic frameworks for enhanced photocatalytic extraction of uranium via the modulation of charge transfer pathways","authors":"Chang Liu, Yaoxuan Wang, Zhimin Dong, Zhibin Zhang, Xiaohong Cao, Yuanming Zhai, Yunhai Liu","doi":"10.1016/j.cej.2025.163078","DOIUrl":"https://doi.org/10.1016/j.cej.2025.163078","url":null,"abstract":"Crystalline covalent organic frameworks (COFs) are emerging as promising candidates for uranium extraction from seawater and treatment of uranium-containing wastewater. Nevertheless, conventional donor–acceptor (D-A) COFs severely limit the catalytic efficiency due to stochastic charge transfer and scarcity of sites. Here, we tuned the charge transfer channel to achieve efficient electron transfer via a facile functionalization strategy. In contrast to the typical situation where the donor and acceptor are distributed alternately in two building blocks, the carboxyl-modified COF has an electron-withdrawing module that allows for the directional transfer of electrons to designated acceptor sites, which have adsorptive and catalytic capabilities, thereby enhancing uranium extraction. The carboxyl-modified COF (TFA-TAT-COF-Q) can efficiently extract over 97 % of uranyl without a sacrificial agent. Notably, TFA-TAT-COF-Q maintains a high removal efficiency of 74.3 % for uranyl in natural seawater at pH = 8.1, highlighting its potential for practical seawater uranium extraction applications. A complex correlation between uranyl extraction and hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>) consumption was subsequently revealed, with uranyl eventually being enriched in the form of pure metastudite [(UO<sub>2</sub>)O<sub>2</sub>·2H<sub>2</sub>O] rather than the typical UO<sub>2</sub>. Ultimately, we demonstrate that optimized electron transfer mode and enhanced exciton dissociation are pivotal factors driving the performance enhancement of COFs. This study brings a novel strategy for the preparation of D-A COFs.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"3 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143877869","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hualei Zhang, Yao Du, Dan Lu, Keyang Liu, Tiantian Zhang, Xiaohai Chen, Hongguang Liu, Li Li, Bin Luo
{"title":"Nacre-inspired gradient design and multifunctional wood-based composites using recycled GFRP from decommissioned wind turbine blades","authors":"Hualei Zhang, Yao Du, Dan Lu, Keyang Liu, Tiantian Zhang, Xiaohai Chen, Hongguang Liu, Li Li, Bin Luo","doi":"10.1016/j.cej.2025.163116","DOIUrl":"https://doi.org/10.1016/j.cej.2025.163116","url":null,"abstract":"Traditional wood-based composites (WBC), typically composed of wood and polymer precursors, often exhibit limited stability and performance in diverse application scenarios, leading to material failure. Although novel multifunctional WBCs with enhanced strength, stability, ease of processing, and cost-effectiveness have been developed, challenges remain due to the high costs of functional additives and the complexity of interface engineering. This study proposes a gradient-distributed WBC reinforced with glass fiber-reinforced polymers (GFRP) derived from recycled decommissioned wind turbine blades (WTBs). Inspired by the natural layered structure of the nacre, we optimize the distribution of GFRP with varying mesh sizes across individual layers. The results demonstrate that WBC@GFRP composites show significant improvements in mechanical properties, with a 49% increase in modulus of rupture (MOR), 49% in modulus of elasticity (MOE), and 64% in internal bonding (IB) strength compared to pristine WBCs. Additionally, the composites exhibit enhanced dimensional stability, decay resistance, and flame retardancy, with a limiting oxygen index (LOI) of 30.1% and a 23% reduction in the average adequate heat of combustion. Accelerated weathering tests confirm the exceptional stability of the nacre-inspired structure under fluctuating environmental conditions, including water exposure, high humidity, and extreme temperature variations. This enhanced resilience is attributed to the gradient-distributed structure, which mitigates substrate deformation, prevents moisture penetration, and maintains mechanical integrity. These findings highlight the potential of WBC@GFRP for long-term performance in challenging applications, particularly in construction, packaging, and furniture industries, and present a novel approach for recycling WTBs and developing high-performance composites.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"9 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143877871","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yongming Han, Chaokai Zeng, Qingxu Ni, Junqiang Wang, Zeyu Chu, Xingxing Zhang, Zhiqiang Geng, Lei Tan, Yuandong Liu
{"title":"Time series prediction of anaerobic digestion yield and carbon emissions from food waste based on iTransformer model","authors":"Yongming Han, Chaokai Zeng, Qingxu Ni, Junqiang Wang, Zeyu Chu, Xingxing Zhang, Zhiqiang Geng, Lei Tan, Yuandong Liu","doi":"10.1016/j.cej.2025.163064","DOIUrl":"https://doi.org/10.1016/j.cej.2025.163064","url":null,"abstract":"As the global demand for renewable energy and environmental protection continues to grow, anaerobic digestion of food waste as an effective way of resource recycling and energy production has attracted widespread attention. And forecasting methane generation with precision throughout the<!-- --> <span><span>anaerobic digestion</span><svg aria-label=\"Opens in new window\" focusable=\"false\" height=\"20\" viewbox=\"0 0 8 8\"><path d=\"M1.12949 2.1072V1H7V6.85795H5.89111V2.90281L0.784057 8L0 7.21635L5.11902 2.1072H1.12949Z\"></path></svg></span> <!-- -->(AD) process is crucial for optimizing the process and improving energy recovery efficiency. Therefore, this paper proposed a new time series prediction model based on the iTransformer method to accurately predict the biogas production during the AD of food waste. The iTransformer uses the attention mechanism to capture the inter-variable relationships, and sequentially processes the historical observations features layer by layer along the time dimension through the feedforward network to capture the complex dynamic characteristics of production process data and build a predictive model. Finally, the proposed method is used to forecast the methane yield and carbon dioxide emissions during the AD of food waste. Compared with the gate recurrent unit (GRU), the autoregressive integrated moving average (ARIMA), the long short-term memory network (LSTM) and Transformer methodologies, the proposed iTransformer method based time series prediction method performs well in the productivity prediction of Garment Employees (PPGM) dataset and the AD dataset, where the mean square error (MSE), coefficient of determination (R<sup>2</sup>), and accuracy are 0.0231, 0.9036, and 95.9118% on the PPGM dataset, and the MSE, R<sup>2</sup>, the root mean square error (RMSE) and accuracy are 3946.9602, 0.9949, 7.1596, and 98.5517% on the AD dataset, respectively. Moreover,<!-- --> <!-- -->the impact of different operational parameters on the AD process can be optimized through the prediction results to increase biogas production and reduce carbon emissions.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"17 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143877872","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}