Chemical Engineering Journal最新文献_第5页

Asymmetrically coordinated Co-N2S1 sites anchored on biochar regulating the free radical activation of peroxymonosulfate for efficient ofloxacin degradation

IF 15.1 1区工程技术

Chemical Engineering Journal Pub Date : 2025-01-23 DOI: 10.1016/j.cej.2025.159899

Mingming Ta, Huanting Bai, Tuo Wang, Juan Guo, Yanzhong Zhen, Chuanliang Zhao, Yatong Jing, Zhen Liu, Gaihui Liu, Fuchun Zhang

{"title":"Asymmetrically coordinated Co-N2S1 sites anchored on biochar regulating the free radical activation of peroxymonosulfate for efficient ofloxacin degradation","authors":"Mingming Ta, Huanting Bai, Tuo Wang, Juan Guo, Yanzhong Zhen, Chuanliang Zhao, Yatong Jing, Zhen Liu, Gaihui Liu, Fuchun Zhang","doi":"10.1016/j.cej.2025.159899","DOIUrl":"https://doi.org/10.1016/j.cej.2025.159899","url":null,"abstract":"In this study, the asymmetric N, S coordinated Co sites on biochar (CoNS@BC) were synthesized for the degradation of ofloxacin (OFX) in Fenton-like PMS-AOPs. The constructed CoNS@BC/PMS oxidation system exhibited excellent performance with an OFX degradation rate of 0.695 min−1, which was 1.5 times higher than that of Co@BC. Quenching experiments, EPR analyses, and probe experiments indicated that Co-N2S1 sites could convert the non-radical oxidation in the Co@BC/PMS to the free radical oxidation in the CoNS@BC/PMS system. XPS analysis, in situ spectroscopy (Raman and FTIR), and DFT calculations elucidated the structural-catalytic relationship between the Co-N2S1 sites and PMS activation. The asymmetric coordination of N and S increased the adsorption energy of Co-N2S1 sites for PMS by elevating the d-band center of Co, leading to O-O breakage and formation of free radicals. Furthermore, graphitic N could accelerate the oxidation of CoⅡ to CoⅢ. The doped S and pyridinic N would reduce CoⅢ to CoⅡ and trigger the CoⅡ–CoⅢ–CoⅡ valence cycle, which significantly enhanced the catalytic activity of CoNS@BC. The effective degradation of OFX in different matrix environments and the stable removal in a continuous column reactor demonstrated the considerable potential of CoNS@BC/PMS system for practical application. Based on these findings, a high-performance and high-stability PMS-AOPs system with tunable activation pathways was successfully developed for the decontamination of organic pollutant wastewater.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"74 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143026383","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}

引用次数: 0

CTAB serves as the best kinetic promoters of H2/DIOX mixed hydrates for moderate solidified hydrogen storage via clathrates

IF 15.1 1区工程技术

Chemical Engineering Journal Pub Date : 2025-01-23 DOI: 10.1016/j.cej.2025.159818

Honglin Yu, Peng Zhang, Mengqi Liu, Daiming Liu, Guodong Zhang, Fei Wang

{"title":"CTAB serves as the best kinetic promoters of H2/DIOX mixed hydrates for moderate solidified hydrogen storage via clathrates","authors":"Honglin Yu, Peng Zhang, Mengqi Liu, Daiming Liu, Guodong Zhang, Fei Wang","doi":"10.1016/j.cej.2025.159818","DOIUrl":"https://doi.org/10.1016/j.cej.2025.159818","url":null,"abstract":"Although clathrate hydrates were thought to open the Pandora box of hydrogen moderate storage, poor hydration efficiency of hydrogen hydrates impedes its application in hydrogen economy. To improve the situation, an efficient kinetic promoter of cetyltrimethylammonium bromide (CTAB) was proposed to enhance the hydration efficiency of mixed H2 and 1,3-dioxolane (DIOX) hydrates, the micro structures of which were characterized via Raman spectra. In DIOX system, when CTAB was introduced, hydrate induction time reduces by 91.4 %, hydrate growth rate increases by 185.2 %, and the storage capacity of hydrogen in hydrates is up to 0.582 wt% under a moderate condition (12 MPa, 274.15 K), which increases by 99.32 %. Potential mechanisms behind the enhancement were proposed, and it was deduced that CTAB changes the arrangement of interfacial water molecules and induces hydration shells, which decrease the nucleation energy barrier as confirmed by the profiles of differential scanning calorimetry (DSC), giving rise to fast hydrate nucleation. In addition, hydrogen molecules were thought to enter the cavity of CTAB micelles, which serve as hydrogen vehicles to enhance the mass transfer of hydrogen by interfacial capture and inner release, resulting in fast hydrate formation. To the best of our knowledge, CTAB presents the best promotion effect on the nucleation and growth of H2/DIOX mixed hydrates among known kinetic promoters, and this finding promotes the application of clathrate hydrates on hydrogen moderate storage a small step forward.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"2 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143026387","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}

引用次数: 0

Hydrogen release from liquid organic hydrogen carrier using plate catalysts in continuous and dynamic operation

IF 15.1 1区工程技术

Chemical Engineering Journal Pub Date : 2025-01-23 DOI: 10.1016/j.cej.2025.159878

P. Nathrath, B. Baier, N. Herz, S. Wituschek, Y.Raed Ramzi, M. Merklein, M. Li, F. Lederle, P. Wasserscheid, E.G. Hübner, P. Schühle

{"title":"Hydrogen release from liquid organic hydrogen carrier using plate catalysts in continuous and dynamic operation","authors":"P. Nathrath, B. Baier, N. Herz, S. Wituschek, Y.Raed Ramzi, M. Merklein, M. Li, F. Lederle, P. Wasserscheid, E.G. Hübner, P. Schühle","doi":"10.1016/j.cej.2025.159878","DOIUrl":"https://doi.org/10.1016/j.cej.2025.159878","url":null,"abstract":"Significant fluctuations in energy supply are anticipated with the increasing utilization of renewable energy sources. To mitigate these fluctuations, green hydrogen released from Liquid Organic Hydrogen Carrier (LOHC) systems offers a promising solution. The use of plate catalysts in novel continuous reactor configurations enables favorable heat and mass transfer rates to drive this highly endothermic hydrogen release reaction. These catalytic plate reactors facilitate dynamic operation modes for an effective response to rapid changes in hydrogen and energy demand. In this study the performance of an established spray-coated plate catalyst is tested for the first time in continuous and dynamic operation modes. In detail, the productivity in hydrogen release from the LOHC-molecule perhydro benzyltoluene (H12-BT) is determined using a catalytic plate reactor and a tailored restart protocol was developed to maintain high hydrogen release productivities after a reactor shutdown. The plate catalysts showed good activity of up-to 0.25 mgH2 min−1 cm−2, a highly dynamic response in hydrogen release and an excellent stability under stationary and fluctuating conditions. Furthermore, a novel non-additive manufacturing method for plate catalysts through laser-texturing is introduced. The morphology of these new structures is characterized and their dehydrogenation performance is compared to the superior spray-coated benchmark.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"13 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143026736","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}

引用次数: 0

Hollow ZIF-67-loaded sandy sediment for enhanced solar-driven water evaporation and PMS-activated pollutant degradation

IF 15.1 1区工程技术

Chemical Engineering Journal Pub Date : 2025-01-23 DOI: 10.1016/j.cej.2025.159900

Wei Zhang, Juzheng Liu, Shoushu Liu, Erjie Huang, Shaojie Ren, Lin Gong

{"title":"Hollow ZIF-67-loaded sandy sediment for enhanced solar-driven water evaporation and PMS-activated pollutant degradation","authors":"Wei Zhang, Juzheng Liu, Shoushu Liu, Erjie Huang, Shaojie Ren, Lin Gong","doi":"10.1016/j.cej.2025.159900","DOIUrl":"https://doi.org/10.1016/j.cej.2025.159900","url":null,"abstract":"The integration of solar interfacial evaporation technology with pollutant degradation functions is crucial for addressing current challenges in freshwater scarcity and water pollution, but significant hurdles remain. In this study, hollow ZIF-67 loaded sandy sediment (H-ZIF-67@SS) was synthesized to construct a bifunctional reactor combining solar evaporation and PMS-based advanced oxidation processes. The results showed that the unique structure of H-ZIF-67 enhanced the multiple reflection effect and prolonged the contact time of light within the cavity, while inhibiting the escape of light from the cavity, thereby significantly improving light absorption and photothermal conversion at the evaporation interface. In addition, the oxygen-containing functional groups on the surface of H-ZIF-67@SS and the nanoscale confinement effect suppressed the hydrogen bonding interactions between water molecules, effectively reducing the enthalpy change of water evaporation. Consequently, the H-ZIF-67@SS exhibited an excellent water evaporation rate (1.62 kg·m−2·h−1) and solar evaporation efficiency (93.12 %). Moreover, the nano-confined spatial structure enriched with Co-N active sites allows H-ZIF-67@SS to efficiently activate PMS and degrade the typical pharmaceutical contaminant carbamazepine (CBZ) simultaneously during the water evaporation process. Experimental results under various water environmental conditions further showed that this dual-function solar evaporation system displayed outstanding tolerance to different water environments, indicating its promising potential for practical applications.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"11 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143026739","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}

引用次数: 0

Electrochemical hydrogenation and hydrogenolysis of furfural on copper electrode enhanced by surface environment modulation with metal–organic framework 金属-有机骨架表面环境调制增强了糠醛在铜电极上的电化学加氢和氢解反应

IF 15.1 1区工程技术

Chemical Engineering Journal Pub Date : 2025-01-23 DOI: 10.1016/j.cej.2025.159800

Yu-Shuo Lee, Chi-Wei Huang, Chun-Ting Yueh, Chung-Wei Kung, Wen-Yueh Yu

{"title":"Electrochemical hydrogenation and hydrogenolysis of furfural on copper electrode enhanced by surface environment modulation with metal–organic framework","authors":"Yu-Shuo Lee, Chi-Wei Huang, Chun-Ting Yueh, Chung-Wei Kung, Wen-Yueh Yu","doi":"10.1016/j.cej.2025.159800","DOIUrl":"https://doi.org/10.1016/j.cej.2025.159800","url":null,"abstract":"Recently advancements in electrochemical hydrogenation and hydrogenolysis (ECH) have sought to improve the sustainable production of biochemicals. Cu foil has been extensively investigated in the ECH reaction of furfural (FF) into furfuryl alcohol (FA) and 2-methylfuran (MF) while its catalytic performance is still impeded by its intrinsically flat surface. In this study, we propose a facile approach to improve the ECH reaction of FF over Cu foil by surface modifications with MOF-808, a Zr-based metal–organic framework with abundant terminal –OH/OH2 groups. The coordinatively unsaturated Zr site (Zr-CUS) present in framework could act as Lewis acid center to interact with the carbonyl oxygen of FF, thus facilitating the diffusion of FF from the electrolyte solution to near-surface region of Cu electrode. The terminal –OH/OH2 functional groups on the node could serve as proton donors and/or acceptors, thereby creating the proton-rich environment at the surface of Cu electrode. The findings in this study demonstrate an effective strategy to enhance the electrocatalytic performance of metal foil electrode via the modifications with rationally designed MOF overlayer.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"27 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143020067","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}

引用次数: 0

Highly electrostatic cellulose acetate materials assisted by copper ion coordination for air filtration 高静电醋酸纤维素材料辅助铜离子配位空气过滤

IF 15.1 1区工程技术

Chemical Engineering Journal Pub Date : 2025-01-23 DOI: 10.1016/j.cej.2025.159848

Ning Yan, Ting Gao, Li Hua, Fan Xie, Rui-Xin Liu, Ding-Gen Hu, Zhao-Qing Lu

{"title":"Highly electrostatic cellulose acetate materials assisted by copper ion coordination for air filtration","authors":"Ning Yan, Ting Gao, Li Hua, Fan Xie, Rui-Xin Liu, Ding-Gen Hu, Zhao-Qing Lu","doi":"10.1016/j.cej.2025.159848","DOIUrl":"https://doi.org/10.1016/j.cej.2025.159848","url":null,"abstract":"Petroleum-based electret air filtration materials can capture particulate matter efficiently by electrostatic adsorption, but the non-degradation of such materials causes environmental pollution. Cellulose acetate (CA) is an environmentally friendly filtration material with great application potential. However, its polyhydroxyl structure and weak polarization make it difficult to construct high electrostatic, which is not conducive to filtration. Here, we report a molecular chain spacing expansion strategy for achieving high-performance cellulose-based electrospun materials for air filtration by coordination with copper ion (Cu2+). Through the coordination we show that the restriction of CA hydrogen bonding network for its dipole orientation polarization under the external electric field (independent polarization properties) is weakened, i.e., its dipole moment was greatly improved from 5.23 debye to 8.86 debye. Due to its high surface potential (7.97 kV), the Cu2+-coordinated CA film exhibits excellent filtration performance with a high PM 0.3 removal efficiency of 99.15 % and a low pressure drop of 37.3 Pa, which is 39.98 % higher than that of the pure CA film. Moreover, by comparing the filtration performance of particles with different sizes (PM 0.3, PM 0.5, PM 1.0), it is found that the electrostatic adsorption works better for smaller particles.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"84 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143020072","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}

引用次数: 0

Composite fabric with high photoabsorption and conductivity for efficient all-weather seawater desalination under low voltage

IF 15.1 1区工程技术

Chemical Engineering Journal Pub Date : 2025-01-23 DOI: 10.1016/j.cej.2025.159892

Tianwei Zhai, Xiaolong Li, Zhouliang Chen, Ye Peng, Mohsen Salimi, Lisha Zhang, Majid Amidpour, Zhigang Chen

{"title":"Composite fabric with high photoabsorption and conductivity for efficient all-weather seawater desalination under low voltage","authors":"Tianwei Zhai, Xiaolong Li, Zhouliang Chen, Ye Peng, Mohsen Salimi, Lisha Zhang, Majid Amidpour, Zhigang Chen","doi":"10.1016/j.cej.2025.159892","DOIUrl":"https://doi.org/10.1016/j.cej.2025.159892","url":null,"abstract":"Photo/electro-thermal desalination has been considered an effective strategy to obtain freshwater continuously from seawater, but its practical application is still hindered by weak photoabsorption, high voltage-dependent evaporation and salt precipitation. To address these problems, we report a photo/electrothermal fabric for achieving efficient continuous all-weather evaporation. Such fabric is prepared by coating graphene oxide-polyvinyl alcohol (GO-PVA) on conductive carbon fiber cloth (CFC) through a brushing-crosslinking route. GO-PVA hydrogel coating enables the transformation of hydrophobic CFC into super-hydrophilic CFC@GO-PVA, accompanied by the decrease in evaporation enthalpy to 1917.36 kJ kg−1 compared with pure water (2408 kJ kg−1). CFC@GO-PVA fabric shows high photoabsorption efficiency (95.9 %) in 280–2500 nm and good photothermal effect. When CFC@GO-PVA is used to construct a hanging heliotropic evaporator, it exhibits a photothermal evaporation rate of 2.31 kg m-2h−1 under 1 sun illumination. Simultaneously, CFC@GO-PVA fabric has excellent electrothermal conversion performance owing to the conductive property of CFC and the heat transfer channel of GO, and an electrothermal evaporation rate of 10.39 kg m-2h−1 can be achieved at low voltage (3 V). Interestingly, with the combined effect of 1 Sun and 3 V, CFC@GO-PVA fabric reaches a remarkable evaporation rate of 14.16 kg m-2h−1. The present high synergetic evaporation performance is attributed to the high photo-electrothermal coupling temperature which can reduce water viscosity, yielding a faster interface-water–vapor escape. Importantly, the fabric demonstrates good stability without salt crystallization during long-time evaporation tests. Therefore, the present study offers a new perspective on designing photo-electrothermal materials for all-weather seawater evaporation.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"38 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143026384","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}

引用次数: 0

Extracellular barrier via in situ cross-linked catechol for blocking tumor mass transport and synergistic chemotherapy

IF 15.1 1区工程技术

Chemical Engineering Journal Pub Date : 2025-01-23 DOI: 10.1016/j.cej.2025.159880

Yuanying Li, Han Shao, Yunxiu Zhang, Qiang Liu, Changhan Yan, Xiyin Liu, Yaolan Tao, Renhao Nie, Jianhong Zhang, Qingyan Jia, Peng Li

{"title":"Extracellular barrier via in situ cross-linked catechol for blocking tumor mass transport and synergistic chemotherapy","authors":"Yuanying Li, Han Shao, Yunxiu Zhang, Qiang Liu, Changhan Yan, Xiyin Liu, Yaolan Tao, Renhao Nie, Jianhong Zhang, Qingyan Jia, Peng Li","doi":"10.1016/j.cej.2025.159880","DOIUrl":"https://doi.org/10.1016/j.cej.2025.159880","url":null,"abstract":"Due to the heightened nutritional consumption resulting from aberrant metabolism of tumor cells, starvation therapy, which involves blocking or depleting key nutrients in tumors, has gained popularity as an attractive approach to treating cancer. Herein, the catechol-containing polymer, P(DMA-co-MAA)-BTZ, was successfully synthesized via the copolymerizing dopamine methacrylamide (DMA) with polymethacrylic acid (MAA), followed by grafted with chemotherapy drug bortezomib (BTZ). The P(DMA-co-MAA)-BTZ exhibited pH-responsive behavior in the acidic tumor microenvironment, facilitating controlled release of BTZ for chemotherapy. Additionally, the liberated phenolic groups could form a membranal coating on the surface of tumor cells in response to overexpressed H2O2, thereby impeding the uptake of external nutrients and enabling starvation therapy. The efficacy of P(DMA-co-MAA)-BTZ in inhibiting glucose uptake by tumor cells has been demonstrated through both in vitro and in vivo experiments, resulting in a reduction of intracellular lactate, GSH, and ATP synthesis as well as the accumulation of reactive oxygen species as metabolic waste. This synergistic strategy of combining starvation therapy with chemotherapy yielded efficient anti-tumor effects while suppressing tumor metastasis and invasion, presenting a promising alternative approach for clinical tumor treatment.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"34 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143026741","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}

引用次数: 0

A highly sensitive and reusable magnetic nano-electrochemical biosensor for the detection of the liver cancer biomarker heat shock protein 70 用于检测肝癌生物标志物热休克蛋白70的高灵敏度和可重复使用的磁性纳米电化学生物传感器

IF 15.1 1区工程技术

Chemical Engineering Journal Pub Date : 2025-01-23 DOI: 10.1016/j.cej.2025.159860

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":"A highly sensitive and reusable magnetic nano-electrochemical biosensor for the detection of the liver cancer biomarker heat shock protein 70","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.2025.159860","DOIUrl":"https://doi.org/10.1016/j.cej.2025.159860","url":null,"abstract":"A novel composite magnetic nanomaterial, functionalized with the aptamer Apt7, was developed. Its magnetic properties enable effective adsorption onto a magnetic glassy carbon electrode, forming a specific membrane designed for the detection of HSP70. The composite magnetic nanomaterial was synthesized using a chemical reduction method, resulting in uniformly sized Au-coated Fe3O4 nanoparticles (Fe3O4@Au) with excellent electrical conductivity. Furthermore, the high-affinity aptamer Apt7 targeting HSP70 was selected using Systematic Evolution of Ligands by Exponential Enrichment (SELEX) and molecular fishing techniques. The thiol groups within the aptamer were effectively immobilized on the Au-coated Fe3O4 nanoparticles surface via binding interactions with gold (Au). Electrochemical techniques were systematically employed to optimize the Apt7-modified biosensor, yielding a dissociation constant (Kd) of 72.49 pM. The optimized HSP70 biosensor demonstrated an extensive detection range, spanning from 10 pg mL−1 to 200 ng mL−1, with a remarkable detection limit of 0.525 pg mL−1 (S/N = 3). This immunoassay proficiently detected HSP70 in human blood samples and exhibited superior performance relative to the commonly employed ELISA method in clinical analyses.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"32 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143020071","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}

引用次数: 0

A flexible triboelectric nanogenerator based on Ecoflex/BaTiO3/carbon spheres for active and passive tactile intelligent sensing systems 一种基于Ecoflex/BaTiO3/碳球的柔性摩擦电纳米发电机，用于主动和被动触觉智能传感系统

IF 15.1 1区工程技术

Chemical Engineering Journal Pub Date : 2025-01-23 DOI: 10.1016/j.cej.2025.159840

Hao Zhang, Dongzhi Zhang, Ruiyuan Mao, Liang Zhu, Chengyu Zhang, Lina Zhou, Chunqing Yang, Yuncheng Ji, Yuling Mao

{"title":"A flexible triboelectric nanogenerator based on Ecoflex/BaTiO3/carbon spheres for active and passive tactile intelligent sensing systems","authors":"Hao Zhang, Dongzhi Zhang, Ruiyuan Mao, Liang Zhu, Chengyu Zhang, Lina Zhou, Chunqing Yang, Yuncheng Ji, Yuling Mao","doi":"10.1016/j.cej.2025.159840","DOIUrl":"https://doi.org/10.1016/j.cej.2025.159840","url":null,"abstract":"With the integration of flexible electronic technology and intelligent sensing technology, self-powered tactile sensors based on the triboelectric effect have made rapid advancements. In this work, Ecoflex was used as the main material for flexible devices, and a charge capture layer with both triboelectric and piezoelectric effects was prepared by doping with tetragonal barium titanate (T-BTO). An electrode with charge capture functionality was created by doping with carbon spheres (CS). Additionally, a layer-by-layer self-assembly process was employed to construct a piezoelectric effect-enhanced integrated triboelectric nanogenerator Ecoflex/CS/T-BTO (CTB-TENG). By polarization treatment, the output voltage and current of the CTB-TENG were enhanced to 532 V and 72 μA. To enhance the tactile sensing capability of the CTB-TENG, a deep learning model based on convolutional neural networks was proposed, achieving an object recognition accuracy of 98.6 %. Based on this, an active tactile sensing system and a passive tactile control system based on CTB-TENG were developed. The active tactile sensing system achieved intelligent sorting of objects, while the passive tactile sensing system enabled detection and control of objects. This lays a solid foundation for the further application of CTB-TENG in the fields of smart factories and smart homes. It also provides broader application prospects for tactile sensors based on the triboelectric effect and contributes to the advancement of flexible electronic technology.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"28 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143020322","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}

引用次数: 0