Chinese Journal of Chemical Engineering最新文献_第10页

Configured droplet reactor by Pd/g-C3N4 for the Suzuki-Miyaura cross-coupling reaction under water condition 采用Pd/g-C3N4配置液滴反应器，在水条件下进行Suzuki-Miyaura交叉偶联反应

IF 3.7 3区工程技术

Chinese Journal of Chemical Engineering Pub Date : 2025-05-01 DOI: 10.1016/j.cjche.2025.02.004

Lulu Xing , Mingshuang Li , Yuanyuan Shan , Xingbao Wang

{"title":"Configured droplet reactor by Pd/g-C3N4 for the Suzuki-Miyaura cross-coupling reaction under water condition","authors":"Lulu Xing , Mingshuang Li , Yuanyuan Shan , Xingbao Wang","doi":"10.1016/j.cjche.2025.02.004","DOIUrl":"10.1016/j.cjche.2025.02.004","url":null,"abstract":"<div><div>The Pd-catalyzed Suzuki-Miyaura coupling reaction is a crucial tool for constructing C−C bonds. Currently, the organic solvents employed during reaction may cause serious environmental problems. Moreover, the low solubility of inorganic bases in organic solvents leads to enormous mass transfer resistance. To address this issue, the Pickering droplets reactor stabilized by Pd/g-C<sub>3</sub>N<sub>4</sub> at substrate-water two-phase interface is reported. Benefiting from the hydrophobic conjugated framework and hydrophilic terminal groups, Pd/g-C<sub>3</sub>N<sub>4</sub> can configure stable Pickering emulsion without additional functionalization. The Pd loaded catalysts exhibits excellent performance (TOF = 21852 h<sup>−1</sup>) for the Suzuki-Miyaura coupling reaction, which is deriving from unique electronic structure of g-C<sub>3</sub>N<sub>4</sub> and high interfacial area of emulsion. Moreover, there is no clear decrease in reactivity after six cycles (conversion >86%). In this study, the organic solvent was replaced by reaction substrate, and the high activity can be achieved for various halogenated aromatic hydrocarbons and their derivatives.</div></div>","PeriodicalId":9966,"journal":{"name":"Chinese Journal of Chemical Engineering","volume":"81 ","pages":"Pages 232-240"},"PeriodicalIF":3.7,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143922714","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Multi-scale feature fused stacked autoencoder and its application for soft sensor modeling 多尺度特征融合堆叠自编码器及其在软测量建模中的应用

IF 3.7 3区工程技术

Chinese Journal of Chemical Engineering Pub Date : 2025-05-01 DOI: 10.1016/j.cjche.2025.02.011

Zhi Li , Yuchong Xia , Jian Long , Chensheng Liu , Longfei Zhang

{"title":"Multi-scale feature fused stacked autoencoder and its application for soft sensor modeling","authors":"Zhi Li , Yuchong Xia , Jian Long , Chensheng Liu , Longfei Zhang","doi":"10.1016/j.cjche.2025.02.011","DOIUrl":"10.1016/j.cjche.2025.02.011","url":null,"abstract":"<div><div>Deep Learning has been widely used to model soft sensors in modern industrial processes with nonlinear variables and uncertainty. Due to the outstanding ability for high-level feature extraction, stacked autoencoder (SAE) has been widely used to improve the model accuracy of soft sensors. However, with the increase of network layers, SAE may encounter serious information loss issues, which affect the modeling performance of soft sensors. Besides, there are typically very few labeled samples in the data set, which brings challenges to traditional neural networks to solve. In this paper, a multi-scale feature fused stacked autoencoder (MFF-SAE) is suggested for feature representation related to hierarchical output, where stacked autoencoder, mutual information (MI) and multi-scale feature fusion (MFF) strategies are integrated. Based on correlation analysis between output and input variables, critical hidden variables are extracted from the original variables in each autoencoder's input layer, which are correspondingly given varying weights. Besides, an integration strategy based on multi-scale feature fusion is adopted to mitigate the impact of information loss with the deepening of the network layers. Then, the MFF-SAE method is designed and stacked to form deep networks. Two practical industrial processes are utilized to evaluate the performance of MFF-SAE. Results from simulations indicate that in comparison to other cutting-edge techniques, the proposed method may considerably enhance the accuracy of soft sensor modeling, where the suggested method reduces the root mean square error (RMSE) by 71.8%, 17.1% and 64.7%, 15.1%, respectively.</div></div>","PeriodicalId":9966,"journal":{"name":"Chinese Journal of Chemical Engineering","volume":"81 ","pages":"Pages 241-254"},"PeriodicalIF":3.7,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143929515","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Exosomes separation with aqueous two-phase systems from bovine milk 两水相体系分离牛乳外泌体

IF 3.7 3区工程技术

Chinese Journal of Chemical Engineering Pub Date : 2025-05-01 DOI: 10.1016/j.cjche.2024.12.016

Jingjing Sun, Ruoque Mao, Xiaoqian Fu, Shanjing Yao, Dongqiang Lin

{"title":"Exosomes separation with aqueous two-phase systems from bovine milk","authors":"Jingjing Sun, Ruoque Mao, Xiaoqian Fu, Shanjing Yao, Dongqiang Lin","doi":"10.1016/j.cjche.2024.12.016","DOIUrl":"10.1016/j.cjche.2024.12.016","url":null,"abstract":"<div><div>The exosomes hold significant potential in disease diagnosis and therapeutic interventions. The objective of this study was to investigate the potential of aqueous two-phase systems (ATPSs) for the separation of bovine milk exosomes. The milk exosome partition behaviors and bovine milk separation were investigated, and the ATPSs and bovine milk whey addition was optimized. The optimal separation conditions were identified as 16% (mass) polyethylene glycol 4000, 10% (mass) dipotassium phosphate, and 1% (mass) enzymatic hydrolysis bovine milk whey. During the separation process, bovine milk exosomes were predominantly enriched in the interphase, while protein impurities were primarily found in the bottom phase. The process yielded bovine milk exosomes of 2.0 × 10<sup>11</sup> particles per ml whey with high purity (staining rate>90%, 7.01 × 10<sup>10</sup> particles per mg protein) and high uniformity (polydispersity index <0.03). The isolated exosomes were characterized and identified by transmission electron microscopy, zeta potential and size distribution. The results demonstrated aqueous two-phase extraction possesses a robust capability for the enrichment and separation of exosomes directly from bovine milk whey, presenting a novel approach for the large-scale isolation of exosomes.</div></div>","PeriodicalId":9966,"journal":{"name":"Chinese Journal of Chemical Engineering","volume":"81 ","pages":"Pages 1-10"},"PeriodicalIF":3.7,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143886742","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Numerical studies on rib and channel designs considering interfacial contact resistance 考虑界面接触阻力的肋和通道设计的数值研究

IF 3.7 3区工程技术

Chinese Journal of Chemical Engineering Pub Date : 2025-05-01 DOI: 10.1016/j.cjche.2024.12.011

Pengfei Feng , Kuan Yang , Ligang Tan

{"title":"Numerical studies on rib and channel designs considering interfacial contact resistance","authors":"Pengfei Feng , Kuan Yang , Ligang Tan","doi":"10.1016/j.cjche.2024.12.011","DOIUrl":"10.1016/j.cjche.2024.12.011","url":null,"abstract":"<div><div>The mass transport and ohmic losses in proton exchange membrane fuel cells (PEMFCs) is significantly influenced by the channel to rib width ratio (CRWR), particularly when accounting for the interfacial contact resistance between bipolar plates (BPs) and gas diffusion layers (GDLs) (ICR<sub>BP-GDL</sub>). Both the determination of the optimal CRWR value and the development of an efficient flow field structure are significantly influenced by ICR<sub>BP-GDL</sub>s. To investigate this, three-dimensional numerical models were developed, revealing that selecting an optimal CRWR tailored to specific ICR<sub>BP-GDL</sub> values can effectively balance mass transport and ohmic losses. Building on this insight, a novel island two-dimensional flow field design is proposed, demonstrating the ability to enhance oxygen transport to the catalyst layer (CL) and achieve a more uniform oxygen distribution without increasing ohmic losses. Compared to conventional straight and serpentine flow fields, the island flow field improves output power density by 4.5% and 3.5%, respectively, while reducing the liquid water coverage ratio by 30%. Additionally, the study identifies optimal CRWR values for conventional flow fields corresponding to ICR<sub>BP-GDL</sub>s of 2.5, 5, 10, 20, and 40 mΩ·cm<sup>2</sup> as 1.5, 1.5, 1.0, 0.67, and 0.43, respectively. For the island flow field, the optimal CRWRs are consistently smaller—1.5, 1.0, 0.67, 0.43, and 0.43—due to its superior mass transfer capability. This work provides a valuable framework for optimizing flow field designs to achieve improved PEMFC performance.</div></div>","PeriodicalId":9966,"journal":{"name":"Chinese Journal of Chemical Engineering","volume":"81 ","pages":"Pages 11-22"},"PeriodicalIF":3.7,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143890679","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sulfuric acid etching CeO2 nanoparticles to promote high KA-Oil selectivity in cyclohexane selective oxidation 硫酸蚀刻CeO2纳米颗粒促进环己烷选择性氧化KA-Oil的高选择性

IF 3.7 3区工程技术

Chinese Journal of Chemical Engineering Pub Date : 2025-05-01 DOI: 10.1016/j.cjche.2025.03.005

Shuang Wei , Yingwei Li , Longlong Wang , Kexin Li , Bin He , Ruirui Zhang , Ruixia Liu

{"title":"Sulfuric acid etching CeO2 nanoparticles to promote high KA-Oil selectivity in cyclohexane selective oxidation","authors":"Shuang Wei , Yingwei Li , Longlong Wang , Kexin Li , Bin He , Ruirui Zhang , Ruixia Liu","doi":"10.1016/j.cjche.2025.03.005","DOIUrl":"10.1016/j.cjche.2025.03.005","url":null,"abstract":"<div><div>Nanostructured ceria has attracted much attention in the field of redox catalysts due to the numerous active sites with excellent redox ability. Based on the acidic medium etching strategy, we constructed the strong binding centers (hydroxyl sites and strong acid sites) on the surfaces of nanostructured ceria, which regulate the adsorption process of KA-Oil (the mixture of cyclohexanol and cyclohexanone) and to promote high KA-Oil selectivity in cyclohexane oxidation. The three CeO<sub>2</sub> (nanocube, nanorod and nanopolyhedron) with different exposed crystal planes were treated by acid etching to change the surface sites and catalytic properties. The transition behavior of surface sites during etching was revealed, abundant strong binding centers were proved to be constructed successfully. And especially for the nanorod treated by acid (Acid@CeO<sub>2</sub>-NR) with the strongest response for sulfuric acid etching, the strong adsorption of cyclohexanone by strong binding centers was confirmed based on the <em>in-situ</em> DRIFTs. The sulfuric acid etching strategy to enhance the selective oxidation of cyclohexane based on the construction of strong binding centers was proved to be feasible and effective, Acid@CeO<sub>2</sub>-NR with strongest etching response achieved the dramatic promotion of KA-Oil selectivity from 64.1% to 92.3%.</div></div>","PeriodicalId":9966,"journal":{"name":"Chinese Journal of Chemical Engineering","volume":"81 ","pages":"Pages 151-160"},"PeriodicalIF":3.7,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143899507","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Thermal aging and pyrolysis behavior of hyperbranched polymers grafted carbon fibers reinforced phthalonitrile/cyanate ester blend composites 超支化聚合物接枝碳纤维增强邻苯二腈/氰酸酯共混复合材料的热老化与热解行为

IF 3.7 3区工程技术

Chinese Journal of Chemical Engineering Pub Date : 2025-05-01 DOI: 10.1016/j.cjche.2024.12.017

Abbas Daham , Abdeldjalil Zegaoui , Athar Ali Khan Gorar , Zhicheng Wang , Jun Wang , Zhiyi Guo , Zhongcheng Pan , Wenbin Liu , Mehdi Derradji

{"title":"Thermal aging and pyrolysis behavior of hyperbranched polymers grafted carbon fibers reinforced phthalonitrile/cyanate ester blend composites","authors":"Abbas Daham , Abdeldjalil Zegaoui , Athar Ali Khan Gorar , Zhicheng Wang , Jun Wang , Zhiyi Guo , Zhongcheng Pan , Wenbin Liu , Mehdi Derradji","doi":"10.1016/j.cjche.2024.12.017","DOIUrl":"10.1016/j.cjche.2024.12.017","url":null,"abstract":"<div><div>This study investigates the long-term thermal-oxidative stability and mechanical properties of phenol-containing phthalonitrile monomer (PN75) and dicyanate ester of bisphenol-A (DCBA) composites reinforced with short carbon fibers T700SC (SCF) within a temperature range of 330−375 °C. The research focuses on the PN75 monomer and DCBA blend reinforced SCF composites with varying SCF content, examining mass loss and changes in flexural strength after thermal aging for 50 h (h). Results show that the SCF-reinforced composites based on the PN75/DCBA blend consistently outperform the neat blend in flexural strength, both at room temperature and after thermal aging. The introduction of the SCF significantly improves the composites' thermal stability and mechanical retention, with higher SCF content correlating to better performance. Notably, after aging at 350 °C, the SCF-reinforced composites based (30% (mass) SCF) retained 88.8% of its flexural strength, compared to 61.1% for the neat blend. Morphological analysis reveals that while thermal aging causes degradation of the PN75/DCBA blend layer on SCF surfaces, the overall composite structure maintains good mechanical properties up to 350 °C. At 375 °C, significant degradation occurs, yet the composites still retain flexural strengths above 78 MPa. This study demonstrates the potential of the SCF-reinforced composites based on PN75/DCBA blend for high-temperature applications, establishing their upper-temperature limit for long-term use in oxidative environments.</div></div>","PeriodicalId":9966,"journal":{"name":"Chinese Journal of Chemical Engineering","volume":"81 ","pages":"Pages 161-170"},"PeriodicalIF":3.7,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143903924","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Phase equilibria of ternary system RbCl - polyethylene glycol (PEG6000) - H2O at T = (288.2, 298.2, and 308.2) K: Measurement, correlation, and thermodynamic modeling 三元体系RbCl -聚乙二醇(PEG6000) - H2O在T =(288.2, 298.2和308.2)K时的相平衡：测量，相关性和热力学模型

IF 3.7 3区工程技术

Chinese Journal of Chemical Engineering Pub Date : 2025-05-01 DOI: 10.1016/j.cjche.2024.12.020

Shan Feng , Maolan Li , Xudong Yu , Lin Wang , Qin Huang

{"title":"Phase equilibria of ternary system RbCl - polyethylene glycol (PEG6000) - H2O at T = (288.2, 298.2, and 308.2) K: Measurement, correlation, and thermodynamic modeling","authors":"Shan Feng , Maolan Li , Xudong Yu , Lin Wang , Qin Huang","doi":"10.1016/j.cjche.2024.12.020","DOIUrl":"10.1016/j.cjche.2024.12.020","url":null,"abstract":"<div><div>The phase equilibria relationship of the system RbCl-PEG6000-H<sub>2</sub>O were investigated at temperatures of 288.2, 298.2, and 308.2 K, the compositions of solid-liquid equilibria(SLE) and liquid-liquid equilibria(LLE) were determined. The complete phase diagrams, binodal curve diagrams, and tie-line diagrams were all plotted. Results show that both solid-liquid equilibria and liquid-liquid equilibria relationships at each studied temperature. The complete phase diagrams at 288.2 K, 298.2 K and 308.2 K consist of six phase regions: unsaturated liquid region (L), two saturated solutions with one solid phase of RbCl (L + S), one saturated liquid phase with two solid phases of PEG6000 and RbCl (2S + L), an aqueous two-phase region (2L), and a region with two liquids and one solid phase of RbCl (2L + S). With the increase in temperature, the layering ability of the aqueous two-phase system increases, and both regions (2L) and (2L + S) increase. The binodal curves were fitted using the nonlinear equations proposed by Mistry, Hu, and Jayapal. Additionally, the tie-line data were correlated with the Othmer-Tobias, Bancroft, Hand, and Bachman equations. The liquid-liquid equilibria at 288.2 K, 298.2 K and 308.2 K were calculated using the NRTL model. The findings confirm that the experimental and calculated values are in close agreement, demonstrating the model’s effectiveness in representing the system’s behavior.</div></div>","PeriodicalId":9966,"journal":{"name":"Chinese Journal of Chemical Engineering","volume":"81 ","pages":"Pages 105-114"},"PeriodicalIF":3.7,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143899503","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Preparation of MoO3/γ-Al2O3 sulfur-resistant methanation catalyst with segmented plasma fluidized bed 分段等离子流化床制备MoO3/γ-Al2O3耐硫甲烷化催化剂

IF 3.7 3区工程技术

Chinese Journal of Chemical Engineering Pub Date : 2025-05-01 DOI: 10.1016/j.cjche.2025.02.014

Baowei Wang, Jiangzhou Kong, Xiaoyan Li

{"title":"Preparation of MoO3/γ-Al2O3 sulfur-resistant methanation catalyst with segmented plasma fluidized bed","authors":"Baowei Wang, Jiangzhou Kong, Xiaoyan Li","doi":"10.1016/j.cjche.2025.02.014","DOIUrl":"10.1016/j.cjche.2025.02.014","url":null,"abstract":"<div><div>In order to solve the shortcomings of MoO<sub>3</sub>/γ-Al<sub>2</sub>O<sub>3</sub> catalyst for sulfur-resistant methanation, a segmented plasma fluidized bed reactor was designed, where plasma discharge zone and the fluidization zone were separated under higher discharge power. At the bed height of 30 mm, the gas velocity of 0.10 m·s<sup>−1</sup> can provide a better fluidization state. The suitable discharge results can be achieved when the input power is 27 W and the discharge interval is 2.0 mm. With the extension of catalyst plasma treatment time, the conversion of CO decreases, but the selectivity of CH<sub>4</sub> increases. Combined with N<sub>2</sub> physical adsorption-desorption, XRD, TEM, Raman, TGA and TPR characterization, it was found that the active components of the catalyst are uniformly dispersed on the γ-Al<sub>2</sub>O<sub>3</sub> support. After plasma treatment, tetrahedral Mo species was used as the active center, and the interaction between Mo and the carrier was strengthened. It provides a novel approach for preparing catalyst with dielectric barrier discharge (DBD) fluidized bed reactor.</div></div>","PeriodicalId":9966,"journal":{"name":"Chinese Journal of Chemical Engineering","volume":"81 ","pages":"Pages 142-150"},"PeriodicalIF":3.7,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143899506","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Facile synthesis copper-modified titania (Cu/TiO2) nanoparticles for high-efficiency Congo red adsorption 制备高效吸附刚果红的铜修饰二氧化钛纳米粒子

IF 3.7 3区工程技术

Chinese Journal of Chemical Engineering Pub Date : 2025-05-01 DOI: 10.1016/j.cjche.2024.12.015

Shuaishuai Zhang , Qingwen Luo , Xinan Sun , Lin Chi , Peng Sun , Lianke Zhang

{"title":"Facile synthesis copper-modified titania (Cu/TiO2) nanoparticles for high-efficiency Congo red adsorption","authors":"Shuaishuai Zhang , Qingwen Luo , Xinan Sun , Lin Chi , Peng Sun , Lianke Zhang","doi":"10.1016/j.cjche.2024.12.015","DOIUrl":"10.1016/j.cjche.2024.12.015","url":null,"abstract":"<div><div>Pure TiO<sub>2</sub> and copper-modified titania (Cu/TiO<sub>2</sub>) nanoparticles were synthesized through sol gel combined with the pyrolysis method for the removal of Congo red (CR) in wastewater treatment. Surface morphology and structural evaluation utilized XRD, TEM, Raman, FTIR and BET techniques. Cu/TiO<sub>2</sub> showed rich defects and a higher specific surface area than that of TiO<sub>2</sub>. The 1Cu/TiO<sub>2</sub> (molar ratio Cu/TiO<sub>2</sub> of 1/100) showed the best performance to adsorption of CR solution at different reaction conditions (contact duration, CR concentration, adsorbent dose, temperature, and initial pH). Adsorption kinetics and equilibrium isotherms were well-described with a pseudo-second-order kinetics and Freundlich model, respectively. The negative ΔG indicates stable adsorption of CR on the Cu/TiO<sub>2</sub> surface. The adsorption efficiency only decreases by 6% after 5 cycles of adsorption regeneration. The successful synthesis of Cu/TiO<sub>2</sub> offers a new possibility to address the problems related to CR dye from aqueous solutions.</div></div>","PeriodicalId":9966,"journal":{"name":"Chinese Journal of Chemical Engineering","volume":"81 ","pages":"Pages 87-94"},"PeriodicalIF":3.7,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143894482","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Novel lubricant additives obtained from biodiesel soot dotted with silver nanoparticles for tribological applications 从生物柴油烟尘中获得的新型润滑油添加剂点缀着纳米银用于摩擦学应用

IF 3.7 3区工程技术

Chinese Journal of Chemical Engineering Pub Date : 2025-05-01 DOI: 10.1016/j.cjche.2024.12.026

Chuan Li , Jiaao Qi , Xiaodong Wang , Xiaoyong Xu , Enzhu Hu , Qiangqiang Zhang , Bo Wu , Xu Tan , Kunhong Hu , Xianguo Hu

{"title":"Novel lubricant additives obtained from biodiesel soot dotted with silver nanoparticles for tribological applications","authors":"Chuan Li , Jiaao Qi , Xiaodong Wang , Xiaoyong Xu , Enzhu Hu , Qiangqiang Zhang , Bo Wu , Xu Tan , Kunhong Hu , Xianguo Hu","doi":"10.1016/j.cjche.2024.12.026","DOIUrl":"10.1016/j.cjche.2024.12.026","url":null,"abstract":"<div><div>In the quest to develop high-performance lubrication additives, a novel nanocomposite comprising biodiesel soot modified by silver (Ag/BDS) was synthesized. The tribological behavior of Ag/BDS nanocomposite as an additive for liquid paraffin (LP) were systematically investigated using response surface methodology. To elucidate the friction and wear mechanisms associated with the Ag/BDS nanocomposite, various analytical techniques were employed, including scanning electron microscopy with energy-dispersive spectroscopy (SEM/EDS), Raman spectroscopy, and molecular dynamics simulations. The results show that the concentration of Ag/BDS has a significant impact on the tribological properties of LP under different applied loads and sliding speeds. Notably, LP containing 0.25% Ag/BDS shows the most favorable tribological performance and in comparison, to pure LP, the average friction coefficient and average wear volume have been reduced by 42.7% and 21.2%, respectively. The mechanisms underlying the reduction in friction and anti-wear mechanism of Ag/BDS have been attributed to the excellent synergies of Ag and BDS. Specifically, the Ag particles facilitate the incorporation of BDS particles in the formation of uniform boundary lubrication films.</div></div>","PeriodicalId":9966,"journal":{"name":"Chinese Journal of Chemical Engineering","volume":"81 ","pages":"Pages 277-291"},"PeriodicalIF":3.7,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143948133","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0