Chemical Engineering Journal最新文献

{"title":"Persulfate activation by inherent soil constituents for sulfamethoxazole degradation: Synergistic roles of iron minerals and organic matter","authors":"Shixian Cheng, Jun Liang, Zhiwen Cheng, Jingyi Zhang, Liyang Hu, Wenfeng Huang, Xiangyang Gui, Zhefan Ren, Xiaoyun Xu, Xinde Cao","doi":"10.1016/j.cej.2025.164357","DOIUrl":"https://doi.org/10.1016/j.cej.2025.164357","url":null,"abstract":"Persulfate (PS)-based in situ chemical oxidation has attracted extensive attention for remediating organic-contaminated soils. The inherent Fe minerals can act as the activators of PS in the degradation of soil organic contaminants, but the combined effects of Fe minerals and organic matter (OM) remained elusive. Here, we investigated sulfamethoxazole (SMX) degradation by PS in complex soil system. Results showed that SMX degradation by PS in soil could reach 70.7 %. Notably, the removal of free Fe oxides led to a 12.6 % decrease in SMX degradation, while OM removal resulted in a more substantial 28.0 % decrease in SMX degradation, implying that inherent OM played more pivotal roles in SMX degradation than Fe minerals. Furthermore, the synergistic roles of OM and Fe mineral facilitated SMX degradation through the formation of surface complexes between Fe minerals and OM with -HOH and -COO groups, as analyzed by fourier transform ion cyclotron resonance mass spectrometry. Specifically, the presence of OM promoted the reductive dissolution of Fe minerals, leading to the generation of surface-bound Fe(II). Then this Fe(II) formed a complex with OM, which was favorable for the PS activation to produce reactive species. The dominant roles of radicals, particularly ^•OH in SMX degradation were collectively evidenced by multiple methods, including quenching test, chemical-probing test, electron paramagnetic resonance, analysis of degradation products, and density functional theory calculations. These findings provide valuable insights into the interactions between Fe mineral and OM for PS activation in remediation of organic-contaminated soils.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"38 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144188908","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":"Designing Zn atomic coordination sites within TpBpy COFs for efficient photocatalytic CO2 reduction under visible light irradiation","authors":"Min Zhou, Lingling Ding, Keqiang Chen, Yunan Bao, Yueli Liu, Wen Chen","doi":"10.1016/j.cej.2025.164339","DOIUrl":"https://doi.org/10.1016/j.cej.2025.164339","url":null,"abstract":"Optimizing coordination microenvironments and achieving high single-atom loads for single-atoms catalysts (SACs) are crucial for enhancing photocatalytic CO₂ reduction. Driven by the abundant coordination site in covalent organic frameworks (COFs), the designing with different metal coordination modes is considered to be efficient route for the high-performance CO₂ photoreduction, while it still suffers great challenge. Here, Zn-NO₃ coordination mode in Zn SACs/TpBpy is synthesized via a one-step solvothermal strategy, achieving an exceptional Zn loading of 11.4 wt%. In-situ characterization and theoretical calculation reveal that the Zn-NO₃ coordination mode optimizes the electronic structure, facilitating photogenerated charge separation, prolonging carrier lifetimes, and reducing energy barriers for key intermediates *COOH during CO₂RR. Furthermore, the high content of Zn sites provides more active sites for the adsorption and activation of CO₂ molecule, facilitating the transfer of the photogenerated electrons from TpBpy COFs to the Zn active sites under the visible light irradiation. As a result, Zn/TpBpy COFs with Zn-NO₃ coordination mode exhibit a high CO production rate of 281.75 μmol g⁻¹h⁻¹, along with a remarkable selectivity of 99.96 % under visible light irradiation. This work offers insights for the design of efficient SACs through the optimization of the coordination microenvironment and metal loading content.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"4 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144184002","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":"Photocatalytic conversion of D5 siloxane in water: An exploratory research and mechanism of the process","authors":"Paula Felczak, Piotr Miądlicki, Gustavo Chacón-Rosales, Jacek Przepiórski","doi":"10.1016/j.cej.2025.164337","DOIUrl":"https://doi.org/10.1016/j.cej.2025.164337","url":null,"abstract":"Siloxanes, challenging contaminants in biogas, can severely impact the combustion engine performance, necessitating their removal. Typically, siloxanes are removed from biogas through adsorption on activated carbon. However, the potential for eliminating siloxanes from wastewater prior to methane fermentation remains underexplored. Therefore, in this work the possibility of photocatalytic conversion of decamethylcyclopentasiloxane (D5) in aqueous phase using UV radiation and titanium dioxide (TiO₂) as photocatalysts is investigated. The effects of several factors on the process, including the effect of UV light and the presence of the photocatalyst on the reaction pathway are examined. Gained findings indicate that the final product of D5 conversion in the aqueous phase is amorphous silica. Given the non-volatility of this product, results in the context of minimizing undesirable desorption of siloxane from the aqueous phase into the gas phase are discussed. Through a detailed analysis, key intermediate species were identified and a reaction mechanism that elucidates the transformation of D5 under photocatalytic conditions in water is proposed.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"17 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144188914","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":"Intrachain torsional disorder in melon-based carbon nitride aerogel with enhanced photocatalytic properties","authors":"Yinan Wang, Haibin Rao, Wendong Wang, Longmei Shang, Yun Zheng, Kang Sun, Fangsong Guo, Guowu Zhan","doi":"10.1016/j.cej.2025.164336","DOIUrl":"https://doi.org/10.1016/j.cej.2025.164336","url":null,"abstract":"Minimizing the exciton binding energy in a single polymer material represents a promising strategy for enhancing photocatalytic activity. Herein we designed a melon-based carbon nitride aerogel with an intrachain torsional disorder driven by pyrolysis supramolecular strategy. Such torsional disorder melon-based π-conjugated systems can be constructed to exhibit a minimized exciton binding energy, extended visible light absorption, ultrahigh BET specific surface area, and enhanced charge carriers transfer and separation efficiency, thereby hydrogen production reached a new high of 1.83 mmol h⁻¹, with an AQY of 13.3 % at λ = 450 nm, exceeding most of the currently reported polymeric carbon nitride. This study highlights the facile regulation of exciton binding energy by crosslinked molecular architectonics, which shows great potential for torsional disorder π-conjugated systems in photoelectrical catalysis.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"13 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144188939","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":"Quantitative modeling of substrate velocity effects on deposition efficiency and precursor consumption in spatial ALD","authors":"Geng Ma, Zhaojie Wang, Yuan Gao, Zoushuang Li, Xuewei Jiang, Yanwei Wen, Bin Shan, Fan Yang, Rong Chen","doi":"10.1016/j.cej.2025.164236","DOIUrl":"https://doi.org/10.1016/j.cej.2025.164236","url":null,"abstract":"Spatial atomic layer deposition (Spatial ALD) enables highly efficient thin film deposition through increased substrate velocity. However, rapid substrate movement introduces challenges such as reduced ALD growth per cycle (GPC) and increased contamination from unwanted chemical vapor deposition (CVD), necessitating higher precursor and gas consumption. In this study, a quantitative model for analyzing CVD as a functional relationship with substrate velocity is developed, based on the kinetic theory of ALD adsorption, complemented by a coupled fluid dynamics model for precursor mass transfer and reactions. The model identifies conditions that maintain ALD performance and minimize contamination at rapid substrate velocity by enhancing gas flow rate within the micro-gap to reduce entrainment. Comprehensive analysis of coverage, CVD, utilization, and consumption revealing that reducing the micro-gap size is a more economical strategy for achieving higher film deposition rates. Furthermore, an active learning framework driven by Gaussian process regression and self-defined acquisition strategy efficiently identifies the optimal process conditions at three substrate velocities. Requiring only 115 calculations out of 77 million possible combinations, the optimization achieves a 31 % reduction in gas consumption and a 15 % reduction in precursor consumption at a substrate velocity of 0.15 m/s. Experimental validation confirms these conditions yield films with high GPC and quality comparable to thermal ALD, underscoring the model’s efficacy. This study provides valuable insights for achieving cost-effective spatial ALD at higher substrate velocities across diverse conditions.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"37 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144188882","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":"Engineering a novel bifunctional nanoplatform integrating metabolic profiles and tissue imaging for fingerprints characterization of Polygonatum cyrtonema Hua","authors":"Miaomiao Li, Chunxia Ma, Guanhua Zhang, Jiahui Sun, Xiao Wang","doi":"10.1016/j.cej.2025.164345","DOIUrl":"https://doi.org/10.1016/j.cej.2025.164345","url":null,"abstract":"Understanding component differences in <em>Polygonatum cyrtonema</em> Hua under various cultivation methods is vital for its medicinal and edible development, but limited by the lack of rapid, simple, and accurate methods. Herein, eco-friendly, homogeneous MXene-GO-Au films were prepared by a simple in situ self-assembly strategy, and a novel MXene-GO-Au assisted laser desorption/ionization mass spectrometry (LDI-MS) and MS imaging (MSI) bifunctional platform was established. This platform offers ultra-high detection performance with excellent sensitivity and reproducibility (coefficient of variation &lt;8 %), clean background, and good salt and protein resistance but also promises to achieve quantitative analysis of small molecule metabolites of the tested species. A Ridge regression model with automatically optimized regularization (10-fold cross-validation) was used to analyze the metabolic fingerprints of <em>P. cyrtonema</em> obtained through MXene-GO-Au-assisted LDI-MS. This machine learning approach achieved high-precision differentiation (up to 100 % accuracy) among samples from distinct cultivation sources (wild, field cultivated, and forest cultivated). In addition, the Ridge model guided the identification of 14 biologically relevant differential metabolites through feature selection. Abundances of the key differential metabolites were reconfirmed at the primary tissue level by MXene-GO-Au assisted LDI-MSI, demonstrating the reliability of the results obtained based on <em>P. cyrtonema</em> metabolomics. Meanwhile, high-resolution MXene-GO-Au film assisted LDI-MSI was used to analyze spatial distributions of the differential metabolites of the three groups of <em>P. cyrtonema.</em> Results indicated that the MXene-GO-Au assisted LDI-MS and MSI bifunctional platform is expected to become a technology for rapid and accurate identification of differential metabolites in medicinal plants.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"176 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144188884","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":"Ionic liquid-assisted fabrication of naphthalimide-doped degradable polylactide films exhibiting atmospheric and aquatic dual-environment ultra-long afterglow","authors":"Lu-Yu Wang, Wei-Guang Chen, Yan-Fang Zhuang, Yuan Yuan, Yu Chen","doi":"10.1016/j.cej.2025.164329","DOIUrl":"https://doi.org/10.1016/j.cej.2025.164329","url":null,"abstract":"To date, no self-standing polymeric room temperature phosphorescence (RTP) material has demonstrated the ability to exhibit ultra-long afterglow in both atmospheric and aquatic environments. Herein, with the assistance of ionic liquids (ILs), ultra-long afterglow was achieved in a degradable poly(L-lactic acid) (PLLA) system doped with a small amount of naphthalimide derivatives (NHN and HNA) under both atmospheric and aquatic conditions. The optimized PLLA/IL-NHN composite exhibited remarkable persistent luminescence, achieving a phosphorescence lifetime of 2.2 s and an afterglow duration exceeding 18 s. Mechanistic studies revealed that strong polarization interactions between ILs and PLLA collectively enhance crystallinity, oxygen barrier capacity, and water resistance, thereby establishing a rigid microenvironment essential for suppressing non-radiative decay. Leveraging phosphorescence resonance energy transfer (PRET), we achieved color-tunable afterglow emissions spanning from blue to yellow, enabling the development of multiplexed anti-counterfeiting systems. Notably, the composite films exhibit complete biodegradability in alkaline solutions, addressing critical environmental concerns associated with conventional optical materials. This work not only provides fundamental insights into the design of sustainable luminescent polymers but also establishes a paradigm for developing eco-conscious photonic devices for atmospheric and aquatic dual-environment anti-counterfeiting and advanced optical applications.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"14 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144188913","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":"Wound healing accelerated by stem cell bandage","authors":"Yingying Liu, Aman Lv, Jinjie Wu, Xiaoyan Wang, Yang Liu, Pui-In Mak, Rui P. Martins, Ren-He Xu, Yanwei Jia","doi":"10.1016/j.cej.2025.164346","DOIUrl":"https://doi.org/10.1016/j.cej.2025.164346","url":null,"abstract":"Mesenchymal stem cells (MSCs) are widely used to treat inflammatory diseases and injuries, including wound healing, as they can immunomodulate and regenerate <em>via</em> paracrine mechanisms. MSC spheres, also known as mesenspheres, have even greater potential than dissociated MSCs in wound healing because they can survive under hypothermic and hypoxic conditions as cell spheres. However, the usage of mesenspheres in wound treatment faces significant challenges, such as low spherification efficiency, uneven distribution in the wound, incomplete release from the dressing, and limitations in multiple administrations. In this study, we developed a new type of dressing known as a mesensphere bandage (MSB) that addresses these challenges by integrating the generation of mesenspheres and wound application into a single solution. The MSB is made of a highly biocompatible material called polydimethylsiloxane (PDMS), which has thousands of patterned microwells that enable high-throughput mesensphere generation. The direct application of mesenspheres to the wound using the MSB ensures even distribution, complete delivery, and the possibility of multiple administrations. MSB has a shelf life of six days at room temperature, facilitating its clinical use. Our <em>in vitro</em> studies revealed that MSB enhances the secretion of factors that promote wound healing. In mouse model-based <em>in vivo</em> assays, MSB substantially accelerated wound healing efficacy by 33 % and enhanced skin remodeling by 58 % compared to those in the blank control group. We speculated that MSB may revolutionize MSC treatment for challenging skin wounds, such as diabetic foot ulcers and burns.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"51 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144184001","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":"Tailoring drug release from skin-like chitosan-agarose biopolymer hydrogels containing Fe3O4 nanoparticles using magnetic fields","authors":"Angel Viteri, Montserrat Espanol, Maria-Pau Ginebra, Jose García-Torres","doi":"10.1016/j.cej.2025.164214","DOIUrl":"https://doi.org/10.1016/j.cej.2025.164214","url":null,"abstract":"Controlled drug release is essential in personalized medicine, requiring innovative materials and strategies. Magnetically responsive hydrogels are promising candidates due to their biocompatibility, softness, flexibility, and ability to enable remote, non-invasive drug modulation using magnetic fields. However, biopolymer-based magnetic hydrogels often suffer from poor mechanical properties, mismatch with native tissue mechanics, and complex synthesis and magnetic setups. Here, we present a novel interpenetrated double biopolymer network of chitosan and agarose incorporating Fe₃O₄ nanoparticles and vancomycin as a model antibiotic. This system overcomes prior limitations by combining mechanical robustness with tunable magnetic responsiveness. The hydrogel was synthesized through an easy, eco-friendly, and scalable method with magnetite contents of 10, 20, and 30 wt.%, allowing tuning of physicochemical (swelling, contact angle, biodegradability), mechanical, and magnetic properties. Biocompatibility was confirmed via human foreskin fibroblast cultures, which exhibited well-spread, interconnected cells, indicating a favorable microenvironment for adhesion and growth. Moreover, hydrogel composition also allowed modulating drug release kinetics. Thus, we observed that under the influence of a magnetic field, the release of vancomycin from the magnetic hydrogel was lower. This effect was more noticeable when the magnetite content was higher. Mathematical analysis of the release profiles using different models revealed that the main mechanism is dissolution-diffusion. As a proof of concept, the controlled drug release from the magnetic hydrogel was studied over bacteria cultures analysing the inhibition halo. It was confirmed that vancomycin release on the bacteria culture was controlled depending on hydrogel composition and magnetic field strength as different inhibition halos were observed. The developed chitosan/agarose/Fe₃O₄ hydrogel can pave the way to a new generation of magnetic hydrogels as drug delivery systems with controlled release via magnetic fields.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"61 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144188917","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":"Zeolite@Metal-organic framework core-shell synthesized from the aluminum of the zeolite with accessible internal surface for CO2 adsorption","authors":"Lucas Güemes, Marta Navarro, Fernando Cacho-Bailo, Cristian D. Jaimes-Paez, Diego Cazorla-Amorós, Carlos Téllez, Joaquín Coronas","doi":"10.1016/j.cej.2025.164314","DOIUrl":"https://doi.org/10.1016/j.cej.2025.164314","url":null,"abstract":"Combining the rigid microporosity of zeolites with the more versatile structures of metal–organic frameworks (MOFs) seeks to obtain a synergistic effect of both materials. Starting from a low cost and industrially produced zeolite, as it is zeolite NaA (with the LTA type structure), we show that it is possible to crystallize a MOF as shell onto it by only using an aqueous solution of terephthalic acid (H₂BDC). Unlike other zeolite-MOF hybrids reported in the literature, the crystallized MOF only uses the aluminum from the zeolite and may share in turn some aluminum atoms with the inorganic zeolite core, therefore it consists solely of zeolitic Al and BDC. Depending on the pretreatment of the zeolite and the synthesis conditions (pH, time, linker ratio), the crystalline zeolite core is maintained or converted into an amorphous aluminosilicate. Thus, it is possible to retain a part of the adsorption properties of the parent zeolite without degrading its structure through the two fundamental strategies of pH control and previous calcination of the zeolite. The resulting core–shell material, designated as LTA@Al-BDC, combines the zeolite microporosity and molecular sieving properties with the MOF that crystallizes as high aspect ratio sheets which, together with its hydrophobicity, favors the contact with polymeric materials. In addition, being zeolite 4A (NaA) affinity towards CO₂ been probed, the resulting LTA@Al-BDC material constitutes a prominent candidate towards CO₂ separation.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"71 1","pages":"164314"},"PeriodicalIF":15.1,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144183742","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}