Electro-fermentation (EF) has emerged as a promising method to produce value-added medium chain fatty acids (MCFAs) via chain elongation (CE). The biorefinery of waste activated sludge (WAS) to MCFAs has been attracting increasing attention. However, so far anaerobic_CE process was commonly employed, while the contribution and mechanism of EF_CE still remain unclear. In the present study, a comprehensive analysis of caproate biosynthesis from prefermented WAS via EF_CE was performed. The reduction in substrates resulted in an increase in caproate production, yielding the maximum caproate (299.8 mg COD/g volatile suspended solid) in the minimum substrate concentration (25 % prefermented WAS, EF13 group). The highest utilization rate (78.76 %) of soluble proteins was also achieved in EF13. Significant positive correlation among caproate yield, electrochemically active bacteria, caproate-synthesizing consortium and homo-acetogen was revealed by molecular ecological network and Mantel test. Further analysis of the metabolic pathways revealed that EF13 demonstrated more key enzymes participated in the production of acetyl-CoA via the Wood-Ljungdahl pathway and the conversation of acetyl-CoA to caproate via the reverse β-oxidation pathway. Moreover, compared to the anaerobic_CE process, the economic benefits of the EF_CE process significantly increased, and the environmental impacts were greatly reduced. The life cycle assessment and economic benefits analysis identified the strengths of EF_CE and proposed a sustainable strategy to facilitate the commercialization of electro-fermentation assisted biorefinery technology.
{"title":"Sustainable biosynthesis of caproate from waste activated sludge via electro-fermentation: Perspectives of product spectrum, economic and environmental impacts","authors":"Dengfei Li, Shuanglan Cheng, Cristiano Varrone, Bing-Jie Ni, Jingyang Luo, Zhihong Liu, Zhangwei He, Wenzong Liu, Aijuan Zhou, Xiuping Yue","doi":"10.1016/j.cej.2024.157768","DOIUrl":"https://doi.org/10.1016/j.cej.2024.157768","url":null,"abstract":"Electro-fermentation (EF) has emerged as a promising method to produce value-added medium chain fatty acids (MCFAs) via chain elongation (CE). The biorefinery of waste activated sludge (WAS) to MCFAs has been attracting increasing attention. However, so far anaerobic_CE process was commonly employed, while the contribution and mechanism of EF_CE still remain unclear. In the present study, a comprehensive analysis of caproate biosynthesis from prefermented WAS via EF_CE was performed. The reduction in substrates resulted in an increase in caproate production, yielding the maximum caproate (299.8 mg COD/g volatile suspended solid) in the minimum substrate concentration (25 % prefermented WAS, EF13 group). The highest utilization rate (78.76 %) of soluble proteins was also achieved in EF13. Significant positive correlation among caproate yield, electrochemically active bacteria, caproate-synthesizing consortium and homo-acetogen was revealed by molecular ecological network and Mantel test. Further analysis of the metabolic pathways revealed that EF13 demonstrated more key enzymes participated in the production of acetyl-CoA via the Wood-Ljungdahl pathway and the conversation of acetyl-CoA to caproate via the reverse β-oxidation pathway. Moreover, compared to the anaerobic_CE process, the economic benefits of the EF_CE process significantly increased, and the environmental impacts were greatly reduced. The life cycle assessment and economic benefits analysis identified the strengths of EF_CE and proposed a sustainable strategy to facilitate the commercialization of electro-fermentation assisted biorefinery technology.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"63 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142670753","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}
Peroxymonosulfate-based advanced oxidation processes (PMS-AOPs) are promising trend for degrading of toxic organic pollutants. In this work, the novel 0D-2D-3D nanoarchitectonics (sandwich structure) are fabricated as advanced catalysts for PMS-AOPs. The distinctive sandwich structure of ZIF-67-AG-CA allows for the complete exposure of the active sites of ZIF-67, which can effectively activate PMS to generate both radical and non-radical species for the degradation of organic pollutants. Furthermore, the nano-reactive sites are distributed uniformly in layers, which provides additional PMS adsorption sites and enhances the efficiency of the catalytic reaction. Consequently, ZIF-67-AG-CA was observed to exhibit an excellent performance in the removal of organic pollutants by activating PMS, achieving a 99% degradation of 4-NP in 60 min and demonstrating good cycling stability through cycling experiments. Furthermore, quenching experiments and EPR demonstrated that SO42− and O2− radicals were involved in a synergistic manner in the catalytic reaction process with 1O2 non-radicals during the catalytic process.
{"title":"MOFs-based 0D-2D-3D nanoarchitectonics as catalytic converters for peroxymonosulfate activation","authors":"Rongfu Peng, Taiyang Cao, Minghui Wang, Chaohai Wang, Yingyi Li, Xinfeng Zhu, Shangru Zhai","doi":"10.1016/j.cej.2024.157809","DOIUrl":"https://doi.org/10.1016/j.cej.2024.157809","url":null,"abstract":"Peroxymonosulfate-based advanced oxidation processes (PMS-AOPs) are promising trend for degrading of toxic organic pollutants. In this work, the novel 0D-2D-3D nanoarchitectonics (sandwich structure) are fabricated as advanced catalysts for PMS-AOPs. The distinctive sandwich structure of ZIF-67-AG-CA allows for the complete exposure of the active sites of ZIF-67, which can effectively activate PMS to generate both radical and non-radical species for the degradation of organic pollutants. Furthermore, the nano-reactive sites are distributed uniformly in layers, which provides additional PMS adsorption sites and enhances the efficiency of the catalytic reaction. Consequently, ZIF-67-AG-CA was observed to exhibit an excellent performance in the removal of organic pollutants by activating PMS, achieving a 99% degradation of 4-NP in 60 min and demonstrating good cycling stability through cycling experiments. Furthermore, quenching experiments and EPR demonstrated that SO<sub>4</sub><sup>2−</sup> and O<sub>2</sub><sup><img alt=\"radical dot\" src=\"https://sdfestaticassets-us-east-1.sciencedirectassets.com/shared-assets/55/entities/rad.gif\" style=\"vertical-align:middle\"/>−</sup> radicals were involved in a synergistic manner in the catalytic reaction process with <sup>1</sup>O<sub>2</sub> non-radicals during the catalytic process.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"4 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142670976","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}
Pub Date : 2024-11-19DOI: 10.1016/j.cej.2024.157794
Weirong Ren, Zhaowei Hou, Long Su, Xinpei Gao, Yanping Chu, Liqiang Zheng, Fei Lu
The increasing market demand ranging from portable electronics to electric vehicles drives the advancement of lithium-ion batteries. However, traditional liquid electrolytes used in LIBs are plagued by issues such as leakage, vaporization, and the degradation of active materials, which compromise performance and pose safety risks. To address these challenges, herein, the liquid-crystalline electrolytes with hexagonal phase were designed based on the self-assembly of amphiphilic molecules, which exhibit both high ionic conductivity and a high Li+ transference number. The hexagonal liquid crystal structure reconfigures the Li+ solvation structure and provides a transport pathway for the Li+ structural diffusion, facilitating the efficient transport of Li+ and contributing to the high ionic conductivity. Furthermore, the ordered arrangement of amphiphilic anion significantly restricts anion diffusion, resulting in an exceptionally high Li+ transference number of 0.92. Additionally, when utilizing NaV3O8 (NVO) as the anode and LiMn2O4 (LMO) as the cathode, the resultant full cell delivers impressive rate performance and stable cycling performance. This work highlights the potential of lyotropic liquid crystals in the development of high-performance quasi solid-state electrolytes for aqueous lithium-ion batteries and beyond
{"title":"Hexagonal liquid crystals as emerging quasi solid-state electrolytes for aqueous lithium-ion batteries","authors":"Weirong Ren, Zhaowei Hou, Long Su, Xinpei Gao, Yanping Chu, Liqiang Zheng, Fei Lu","doi":"10.1016/j.cej.2024.157794","DOIUrl":"https://doi.org/10.1016/j.cej.2024.157794","url":null,"abstract":"The increasing market demand ranging from portable electronics to electric vehicles drives the advancement of lithium-ion batteries. However, traditional liquid electrolytes used in LIBs are plagued by issues such as leakage, vaporization, and the degradation of active materials, which compromise performance and pose safety risks. To address these challenges, herein, the liquid-crystalline electrolytes with hexagonal phase were designed based on the self-assembly of amphiphilic molecules, which exhibit both high ionic conductivity and a high Li<sup>+</sup> transference number. The hexagonal liquid crystal structure reconfigures the Li<sup>+</sup> solvation structure and provides a transport pathway for the Li<sup>+</sup> structural diffusion, facilitating the efficient transport of Li<sup>+</sup> and contributing to the high ionic conductivity. Furthermore, the ordered arrangement of amphiphilic anion significantly restricts anion diffusion, resulting in an exceptionally high Li<sup>+</sup> transference number of 0.92. Additionally, when utilizing NaV<sub>3</sub>O<sub>8</sub> (NVO) as the anode and LiMn<sub>2</sub>O<sub>4</sub> (LMO) as the cathode, the resultant full cell delivers impressive rate performance and stable cycling performance. This work highlights the potential of lyotropic liquid crystals in the development of high-performance quasi solid-state electrolytes for aqueous lithium-ion batteries and beyond","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"25 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142670977","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}
MicroRNAs (miRNAs) play a crucial role in post-transcriptional gene expression and freely circulate in the body. Dysregulation of miRNA signaling is associated with various diseases, including breast cancer (BC). The miRNA profiles from liquid biopsies offer a promising strategy for cancer diagnosis, prognosis and monitoring. Particularly, the simultaneous profiling of multiple miRNA levels greatly enhances the accuracy of cancer diagnosis. In this study, photonic crystals (PhCs) serve as both labels and carriers enabling synchronous optical detection of multiple miRNA targets overexpressed in BC. The process is achieved by triggering enzyme-free amplification reactions through target interactions, generating fluorescence resonance energy transfer (FRET). The method offers high sensitivity, sequence specificity, and the capability to detect multiple targets. The limits of detection (LOD) of the sensor for miRNA-21, miRNA-155 and miRNA-10b were 6.36 fM, 8.52 fM and 6.06 fM, respectively. Moreover, the sensor can be directly applied to untreated human serum with a minimal sample volume requirement of only 1 μL. The simultaneous detection of miRNAs in clinical serum samples from healthy individuals and BC patients was carried out. The results show that the average relative expression levels of miRNA-21, miRNA-155 and miRNA-10b in the BC patient group were 12.18 ± 3.20, 17.27 ± 2.17 and 12.17 ± 1.59 times that of the healthy group, respectively. Therefore, the developed multi-detection strategy can precisely identify these cancer biomarkers and offer a crucial pathway for minimally invasive cancer diagnostics, cancer prevention, early intervention and treatment.
{"title":"Fluorescence resonance energy transfer system coupled with photonic crystals labeling strategy for multiplexed detection of microRNAs from breast cancer","authors":"Sanxia Wang, Shixin Cai, Yi Zhao, Xin Chen, Sha Zhu, Maolin Li, Xiaoli Wang, Yuting Zhang, Nandi Zhou","doi":"10.1016/j.cej.2024.157798","DOIUrl":"https://doi.org/10.1016/j.cej.2024.157798","url":null,"abstract":"MicroRNAs (miRNAs) play a crucial role in post-transcriptional gene expression and freely circulate in the body. Dysregulation of miRNA signaling is associated with various diseases, including breast cancer (BC). The miRNA profiles from liquid biopsies offer a promising strategy for cancer diagnosis, prognosis and monitoring. Particularly, the simultaneous profiling of multiple miRNA levels greatly enhances the accuracy of cancer diagnosis. In this study, photonic crystals (PhCs) serve as both labels and carriers enabling synchronous optical detection of multiple miRNA targets overexpressed in BC. The process is achieved by triggering enzyme-free amplification reactions through target interactions, generating fluorescence resonance energy transfer (FRET). The method offers high sensitivity, sequence specificity, and the capability to detect multiple targets. The limits of detection (LOD) of the sensor for miRNA-21, miRNA-155 and miRNA-10b were 6.36 fM, 8.52 fM and 6.06 fM, respectively. Moreover, the sensor can be directly applied to untreated human serum with a minimal sample volume requirement of only 1 μL. The simultaneous detection of miRNAs in clinical serum samples from healthy individuals and BC patients was carried out. The results show that the average relative expression levels of miRNA-21, miRNA-155 and miRNA-10b in the BC patient group were 12.18 ± 3.20, 17.27 ± 2.17 and 12.17 ± 1.59 times that of the healthy group, respectively. Therefore, the developed multi-detection strategy can precisely identify these cancer biomarkers and offer a crucial pathway for minimally invasive cancer diagnostics, cancer prevention, early intervention and treatment.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"22 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142671081","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}
Molybdenum sulfide (MoS2) is a prospective anode material for potassium-ion batteries, owing to its large interlayer spacing and superior theoretical capacity. Nevertheless, its practical application is hindered by sluggish kinetics and inferior structural stability, which limit its potassium storage performance. Herein, we employ hollow hard-soft carbon bowls (HSCB), consisting of soft carbon uniformly coated on hard carbon bowls, as nanoreactors to confine few-layered MoS2 nanosheets. The mesoporous carbon shells of HSCB enhance electrolyte penetration and enable rapid charge transfer and robust structural protection, while the mechanical coupling induced by pore filling, alongside the exist of CSMo chemical bonds, further reinforces the structural integrity of MoS2. Additionally, the creation of few-layered MoS2 structures and MoS2/carbon heterostructures promotes efficient K-ion adsorption and diffusion. Notably, there is a strong linear relationship between MoS2 content and electrochemical performance, including initial Coulomb efficiency, rate performance, and reaction kinetics. Consequently, the optimized MoS2/HSCB anode demonstrating a superior reversible capacity of 630 mAh g−1 at 0.1 A g−1, an exceptional rate capacity of 251 mAh g−1 at 10 A g−1, and excellent cycling stability, retaining 369 mAh g−1 at 0.5 A g−1 after 700 cycles. Remarkably, a potassium-ion hybrid capacitor assembled with MoS2/HSCB anode achieves superior energy/power densities of 122 Wh kg−1/11266 W kg−1, along with splendid capacity retention of 89.5 % after 5000 cycles. This work not only offers an innovative approach for the structural engineering of high-performance sulfide-based composite materials but also elucidates the impact of sulfide content on electrochemical performance.
硫化钼(MoS2)层间距大,理论容量高,是钾离子电池的理想阳极材料。然而,其缓慢的动力学和较差的结构稳定性限制了它的储钾性能,从而阻碍了它的实际应用。在此,我们采用由均匀涂覆在硬碳碗上的软碳组成的空心硬-软碳碗(HSCB)作为纳米反应器来限制少层 MoS2 纳米片。HSCB 的介孔碳壳可增强电解质的渗透性,实现快速电荷转移和稳健的结构保护,而孔隙填充引起的机械耦合以及 CSMo 化学键的存在,则进一步加强了 MoS2 的结构完整性。此外,少层 MoS2 结构和 MoS2/carbon 异质结构的形成促进了 K 离子的有效吸附和扩散。值得注意的是,MoS2 含量与电化学性能(包括初始库仑效率、速率性能和反应动力学)之间存在很强的线性关系。因此,优化后的 MoS2/HSCB 阳极在 0.1 A g-1 电流条件下的可逆容量高达 630 mAh g-1,在 10 A g-1 电流条件下的速率容量高达 251 mAh g-1,而且循环稳定性极佳,在 0.5 A g-1 电流条件下循环 700 次后仍能保持 369 mAh g-1。值得注意的是,与 MoS2/HSCB 阳极组装的钾离子混合电容器实现了 122 Wh kg-1/11266 W kg-1 的卓越能量/功率密度,以及 5000 次循环后 89.5 % 的出色容量保持率。这项工作不仅为高性能硫化物基复合材料的结构工程提供了一种创新方法,还阐明了硫化物含量对电化学性能的影响。
{"title":"Optimized few-layer MoS2 confined in carbon bowls via pore filling and chemical bond enabling fast kinetics for high-rate potassium storage","authors":"Lei Yang, Xinyu Wang, Chunliu Zhu, Haozhi Wang, Jing Shi, Jingwei Chen, Weiqian Tian, Yue Zhu, Minghua Huang, Jingyi Wu, Huanlei Wang","doi":"10.1016/j.cej.2024.157821","DOIUrl":"https://doi.org/10.1016/j.cej.2024.157821","url":null,"abstract":"Molybdenum sulfide (MoS<sub>2</sub>) is a prospective anode material for potassium-ion batteries, owing to its large interlayer spacing and superior theoretical capacity. Nevertheless, its practical application is hindered by sluggish kinetics and inferior structural stability, which limit its potassium storage performance. Herein, we employ hollow hard-soft carbon bowls (HSCB), consisting of soft carbon uniformly coated on hard carbon bowls, as nanoreactors to confine few-layered MoS<sub>2</sub> nanosheets. The mesoporous carbon shells of HSCB enhance electrolyte penetration and enable rapid charge transfer and robust structural protection, while the mechanical coupling induced by pore filling, alongside the exist of C<img alt=\"single bond\" src=\"https://sdfestaticassets-us-east-1.sciencedirectassets.com/shared-assets/55/entities/sbnd.gif\" style=\"vertical-align:middle\"/>S<img alt=\"single bond\" src=\"https://sdfestaticassets-us-east-1.sciencedirectassets.com/shared-assets/55/entities/sbnd.gif\" style=\"vertical-align:middle\"/>Mo chemical bonds, further reinforces the structural integrity of MoS<sub>2</sub>. Additionally, the creation of few-layered MoS<sub>2</sub> structures and MoS<sub>2</sub>/carbon heterostructures promotes efficient K-ion adsorption and diffusion. Notably, there is a strong linear relationship between MoS<sub>2</sub> content and electrochemical performance, including initial Coulomb efficiency, rate performance, and reaction kinetics. Consequently, the optimized MoS<sub>2</sub>/HSCB anode demonstrating a superior reversible capacity of 630 mAh g<sup>−1</sup> at 0.1 A g<sup>−1</sup>, an exceptional rate capacity of 251 mAh g<sup>−1</sup> at 10 A g<sup>−1</sup>, and excellent cycling stability, retaining 369 mAh g<sup>−1</sup> at 0.5 A g<sup>−1</sup> after 700 cycles. Remarkably, a potassium-ion hybrid capacitor assembled with MoS<sub>2</sub>/HSCB anode achieves superior energy/power densities of 122 Wh kg<sup>−1</sup>/11266 W kg<sup>−1</sup>, along with splendid capacity retention of 89.5 % after 5000 cycles. This work not only offers an innovative approach for the structural engineering of high-performance sulfide-based composite materials but also elucidates the impact of sulfide content on electrochemical performance.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"7 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142673747","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}
Pub Date : 2024-11-19DOI: 10.1016/j.cej.2024.157737
Mengye Jin, Tao Zhu, Yusheng Liu, Weifang Li
The Dielectric Barrier Discharge plasma (DBD)-catalyst system holds promise for soil decontamination, but catalyst recycling is still challenging. In this study, a MnFe2O4 catalyst with recyclability and redox properties was prepared and applied in a DBD system to remove phenanthrene (Phe) from soil. The redox reaction in the MnFe2O4 improved the synthesis of reactive oxygen species (ROS), boosting Phe degradation from 80.21 % to 90.21 % within 5 min, with the corresponding kinetic constants was 1.4 and 2.1 times higher than DBD alone. After four recycling cycles, the Phe removal efficiency remained at 88.7 %. Based on the experiment results, the synergistic effect between DBD and MnFe2O4 induced oxygen vacancy formation and accelerated redox reactions, favoring the decomposition of O3 and the degradation of Phe. Furthermore, the Phe degradation pathways were elucidated through the analysis of intermediates in the DBD-MnFe2O4 system. This work provides new insight for developing soil remediation systems with environmentally friendly and high efficiency.
{"title":"Enhancement of organic pollutant degradation in soil with dielectric barrier discharge plasma and MnFe2O4 catalyst: Performance and mechanism","authors":"Mengye Jin, Tao Zhu, Yusheng Liu, Weifang Li","doi":"10.1016/j.cej.2024.157737","DOIUrl":"https://doi.org/10.1016/j.cej.2024.157737","url":null,"abstract":"The Dielectric Barrier Discharge plasma (DBD)-catalyst system holds promise for soil decontamination, but catalyst recycling is still challenging. In this study, a MnFe<sub>2</sub>O<sub>4</sub> catalyst with recyclability and redox properties was prepared and applied in a DBD system to remove phenanthrene (Phe) from soil. The redox reaction in the MnFe<sub>2</sub>O<sub>4</sub> improved the synthesis of reactive oxygen species (ROS), boosting Phe degradation from 80.21 % to 90.21 % within 5 min, with the corresponding kinetic constants was 1.4 and 2.1 times higher than DBD alone. After four recycling cycles, the Phe removal efficiency remained at 88.7 %. Based on the experiment results, the synergistic effect between DBD and MnFe<sub>2</sub>O<sub>4</sub> induced oxygen vacancy formation and accelerated redox reactions, favoring the decomposition of O<sub>3</sub> and the degradation of Phe. Furthermore, the Phe degradation pathways were elucidated through the analysis of intermediates in the DBD-MnFe<sub>2</sub>O<sub>4</sub> system. This work provides new insight for developing soil remediation systems with environmentally friendly and high efficiency.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"36 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142673746","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}
Oral cancers pose a significant challenge to global public health with devastating incidence and poor prognosis, highlighting the urgent need for early detection and intervention. Herein, inspired by the unique water-collecting structure (peristome) of the Nepenthes pitcher plant, an innovative saliva-amassing low-dosed risk-factor alerted detecting (SALAD) system was integrated into the wearable mouthguard for in situ, specific, and sensitive detection of tumor necrosis factor-alpha (TNF-α) in saliva, serving as a potential early indicator for oral cancers. This system employed an efficient liquid amassing (LA) module to collect and immobilize intraoral biomarkers in dynamic and complex saliva environments. Moreover, the Aggregation-Induced Emission (AIE)-related fluorescent signal was activated directly in the center of the mouthguard in conjunction with a household UV lamp, simplifying the detection process and amplifying the visibility of the diagnostic readings. Encouragingly, the SALAD mouthguard demonstrated exceptional capability in detecting target biomarkers in simulated intraoral environments. Promisingly, it received highly positive support from the volunteers who underwent preliminary testing with the SALAD mouthguard. Overall, validated by numerous simulated and realistic in vitro and in vivo tests, the SALAD mouthguard was demonstrated to act as a promising candidate for forewarning of oral cancer, highlighting potential for clinical translation and improving patient care experiences.
{"title":"Nepenthes-inspired saliva-amassing low-dosed risk-factor alerted detecting (SALAD) mouthguard for forewarning of the intraoral cancer","authors":"Yuan Liu, Xiuli Chen, Guanyue Li, Jiarong Xu, Qi Zeng, Rengui Xu, Yusheng Gong, Wei Chen","doi":"10.1016/j.cej.2024.157802","DOIUrl":"https://doi.org/10.1016/j.cej.2024.157802","url":null,"abstract":"Oral cancers pose a significant challenge to global public health with devastating incidence and poor prognosis, highlighting the urgent need for early detection and intervention. Herein, inspired by the unique water-collecting structure (peristome) of the Nepenthes pitcher plant, an innovative saliva-amassing low-dosed risk-factor alerted detecting (SALAD) system was integrated into the wearable mouthguard for <em>in situ</em>, specific, and sensitive detection of tumor necrosis factor-alpha (TNF-α) in saliva, serving as a potential early indicator for oral cancers. This system employed an efficient liquid amassing (LA) module to collect and immobilize intraoral biomarkers in dynamic and complex saliva environments. Moreover, the Aggregation-Induced Emission (AIE)-related fluorescent signal was activated directly in the center of the mouthguard in conjunction with a household UV lamp, simplifying the detection process and amplifying the visibility of the diagnostic readings. Encouragingly, the SALAD mouthguard demonstrated exceptional capability in detecting target biomarkers in simulated intraoral environments. Promisingly, it received highly positive support from the volunteers who underwent preliminary testing with the SALAD mouthguard. Overall, validated by numerous simulated and realistic <em>in vitro</em> and <em>in vivo</em> tests, the SALAD mouthguard was demonstrated to act as a promising candidate for forewarning of oral cancer, highlighting potential for clinical translation and improving patient care experiences.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"50 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142670751","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}
Pub Date : 2024-11-19DOI: 10.1016/j.cej.2024.157827
Karolina Karpińska-Wlizło, Witold Zawadzki, Grzegorz Słowik, Wojciech Gac
Two series of silica supported catalysts with comparable nickel contents varying from 2.5 to 20 wt% were prepared by wet impregnation method in the absence and presence of citric acid in the impregnation solution. Temperature-programmed reduction, X-ray diffraction and electron microscopy studies indicated changes of reducibility of nickel oxide species in the corresponding catalysts and formation of nickel nanoparticles of different size and morphology. A gradual increase in the performance of catalysts in the CO2 methanation reaction was observed with increasing Ni loading. The application of a modified impregnation method led to a reduction in the size of the nickel crystallites, which increased the active surface area of the catalysts, improving their activity and selectivity towards methane at low temperatures, as well as their stability at high temperatures. It was shown that the high active surface area of silica-supported nickel catalysts, due to the presence of small crystallites, is a key factor in increasing their activity, pointing out that other catalyst properties may also play an important role. Hydrogen temperature-programmed desorption and in-situ DRIFTS adsorption/desorption of CO, CO2 and CO2 hydrogenation reaction studies indicated that modification of the method of catalyst synthesis led to changes in the surface properties of the catalysts, affecting the way CO2 and H2 activation and the transformation of resulted intermediate species to the final reaction products
在浸渍溶液中柠檬酸不存在和存在的情况下,通过湿浸渍法制备了两个系列的二氧化硅支撑催化剂,其镍含量从 2.5 wt% 到 20 wt% 不等。温度编程还原、X 射线衍射和电子显微镜研究表明,相应催化剂中氧化镍物种的还原性发生了变化,并形成了不同大小和形态的镍纳米颗粒。随着镍负载量的增加,催化剂在 CO2 甲烷化反应中的性能逐渐提高。改良浸渍法的应用减小了镍晶体的尺寸,从而增加了催化剂的活性表面积,提高了催化剂在低温下的活性和对甲烷的选择性,以及在高温下的稳定性。研究表明,由于存在小晶体,二氧化硅支撑镍催化剂的高活性表面积是提高其活性的关键因素,同时指出催化剂的其他特性也可能起到重要作用。氢气温度编程解吸和原位 DRIFTS 吸附/解吸 CO、CO2 和 CO2 加氢反应研究表明,催化剂合成方法的改变会导致催化剂表面性质的变化,影响 CO2 和 H2 的活化方式以及由此产生的中间产物向最终反应产物的转化。
{"title":"Does the active surface area determine the activity of silica supported nickel catalysts in CO2 methanation reaction?","authors":"Karolina Karpińska-Wlizło, Witold Zawadzki, Grzegorz Słowik, Wojciech Gac","doi":"10.1016/j.cej.2024.157827","DOIUrl":"https://doi.org/10.1016/j.cej.2024.157827","url":null,"abstract":"Two series of silica supported catalysts with comparable nickel contents varying from 2.5 to 20 wt% were prepared by wet impregnation method in the absence and presence of citric acid in the impregnation solution. Temperature-programmed reduction, X-ray diffraction and electron microscopy studies indicated changes of reducibility of nickel oxide species in the corresponding catalysts and formation of nickel nanoparticles of different size and morphology. A gradual increase in the performance of catalysts in the CO<sub>2</sub> methanation reaction was observed with increasing Ni loading. The application of a modified impregnation method led to a reduction in the size of the nickel crystallites, which increased the active surface area of the catalysts, improving their activity and selectivity towards methane at low temperatures, as well as their stability at high temperatures. It was shown that the high active surface area of silica-supported nickel catalysts, due to the presence of small crystallites, is a key factor in increasing their activity, pointing out that other catalyst properties may also play an important role. Hydrogen temperature-programmed desorption and in-situ DRIFTS adsorption/desorption of CO, CO<sub>2</sub> and CO<sub>2</sub> hydrogenation reaction studies indicated that modification of the method of catalyst synthesis led to changes in the surface properties of the catalysts, affecting the way CO<sub>2</sub> and H<sub>2</sub> activation and the transformation of resulted intermediate species to the final reaction products","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"19 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142673782","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}
Na2FePO4F (NFPF) with two-dimensional channels for transferring Na ions is considered as the promising cathode material for high-performance sodium-ion batteries (SIBs), while the electrochemical performance in full-cell devices remains unsatisfactory. Here, we developed a method combining high-boiling organic solvents assisted colloidal synthesis (HOS-CS) and subsequent calcination for preparing 20–30 nm of NFPF nanoparticles (NPs) wrapped by conductive carbon as the efficient cathode. HOS-CS demonstrated merits in terms of high utilization of precursors, high synthetic efficiency, and uniform distribution of both sizes and composition of NPs. Impressively, the as-obtained NFPF/C/MWCNTs delivered a reversible capacity up to 118.4 mAh/g at 0.1C. As a bonus, the full-cell configuration fabricated via NFPF/C/MWCNTs cathode and hard carbon (HC) anode demonstrated extraordinary rate capability and cyclic stability. Even at an ultrahigh rate of 10C, 54.7 mAh/g of initial reversible capacity and nearly 80.7 % of capacity retention after 200 cycles were achieved, highlighting the great potentials of NFPF/C/MWCNTs||HC full cell for practical applications in the fields of fast chargeable SIBs. This work offers a novel synthetic method for the preparation of efficient NFPF-based cathode.
{"title":"Tailoring Na2FePO4F nanoparticles as the high-rate capability and Long-life cathode towards fast chargeable sodium-ion full batteries","authors":"Weihuang Wang, Shuhui Li, Yixin Jia, Dongqiang Cao, Rui Liu, Zheng Wang, Zicheng Xie, Lantian Zhang, Liangbing Wang","doi":"10.1016/j.cej.2024.157784","DOIUrl":"https://doi.org/10.1016/j.cej.2024.157784","url":null,"abstract":"Na<sub>2</sub>FePO<sub>4</sub>F (NFPF) with two-dimensional channels for transferring Na ions is considered as the promising cathode material for high-performance sodium-ion batteries (SIBs), while the electrochemical performance in full-cell devices remains unsatisfactory. Here, we developed a method combining high-boiling organic solvents assisted colloidal synthesis (HOS-CS) and subsequent calcination for preparing 20–30 nm of NFPF nanoparticles (NPs) wrapped by conductive carbon as the efficient cathode. HOS-CS demonstrated merits in terms of high utilization of precursors, high synthetic efficiency, and uniform distribution of both sizes and composition of NPs. Impressively, the as-obtained NFPF/C/MWCNTs delivered a reversible capacity up to 118.4 mAh/g at 0.1C. As a bonus, the full-cell configuration fabricated via NFPF/C/MWCNTs cathode and hard carbon (HC) anode demonstrated extraordinary rate capability and cyclic stability. Even at an ultrahigh rate of 10C, 54.7 mAh/g of initial reversible capacity and nearly 80.7 % of capacity retention after 200 cycles were achieved, highlighting the great potentials of NFPF/C/MWCNTs||HC full cell for practical applications in the fields of fast chargeable SIBs. This work offers a novel synthetic method for the preparation of efficient NFPF-based cathode.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"69 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142670749","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}
Pub Date : 2024-11-19DOI: 10.1016/j.cej.2024.157803
Bin Li, Yan Liu, Xiaohui Han, Yihao Zhou, Feng Xiao, Wenqi Xian, Yuehuan Chu, Guocong Liu, Zhouguang Lu
Sodium-ion batteries (SIBs) are emerging as promising low-cost and long-cycle energy storage systems. However, the poor wettability of the conventional polyolefin separators with polar electrolytes leads to low ionic conductivity and high battery resistance, causing rapid capacity decay. Herein, we propose using a polyethylene (PE) separator coated with a nanofiber composited of poly(vinylidene fluoride) (PVDF) and Al2O3 filler via electrospinning. Compared to the standard PE separators, this composite separator offers much improved electrolyte wettability, mechanical strength, and electrochemical stability. Electrochemical tests demonstrate that the Na[Ni1/3Fe1/3Mn1/3]O2||hard carbon pouch cells based on the PVDF-Al2O3/PE composite separator exhibit a capacity retention of 95.1% after 800 cycles at 1C. Additionally, the separator significantly enhances low-temperature discharge performance and cycling stability. Characterizations based on Fourier transform infrared spectroscopy, scanning electron microscopy, and X-ray diffraction confirm the successful integration of Al2O3 nanoparticles into the PVDF matrix, resulting in a homogeneously dispersed and well-connected structure, which improves ion transport efficiency and stability, thereby effectively boosting battery performance. This research highlights the potential of PVDF-Al2O3 nanofiber composite separators for advanced SIBs with high reversibility, a wide operating temperature range, and long cycling life.
{"title":"Electrospun nanofiber Surface-Modified polyethylene separator for enhanced cycling stability and Low-Temperature performance of Sodium-Ion batteries","authors":"Bin Li, Yan Liu, Xiaohui Han, Yihao Zhou, Feng Xiao, Wenqi Xian, Yuehuan Chu, Guocong Liu, Zhouguang Lu","doi":"10.1016/j.cej.2024.157803","DOIUrl":"https://doi.org/10.1016/j.cej.2024.157803","url":null,"abstract":"Sodium-ion batteries (SIBs) are emerging as promising low-cost and long-cycle energy storage systems. However, the poor wettability of the conventional polyolefin separators with polar electrolytes leads to low ionic conductivity and high battery resistance, causing rapid capacity decay. Herein, we propose using a polyethylene (PE) separator coated with a nanofiber composited of poly(vinylidene fluoride) (PVDF) and Al<sub>2</sub>O<sub>3</sub> filler via electrospinning. Compared to the standard PE separators, this composite separator offers much improved electrolyte wettability, mechanical strength, and electrochemical stability. Electrochemical tests demonstrate that the Na[Ni<sub>1/3</sub>Fe<sub>1/3</sub>Mn<sub>1/3</sub>]O<sub>2</sub>||hard carbon pouch cells based on the PVDF-Al<sub>2</sub>O<sub>3</sub>/PE composite separator exhibit a capacity retention of 95.1% after 800 cycles at 1C. Additionally, the separator significantly enhances low-temperature discharge performance and cycling stability. Characterizations based on Fourier transform infrared spectroscopy, scanning electron microscopy, and X-ray diffraction confirm the successful integration of Al<sub>2</sub>O<sub>3</sub> nanoparticles into the PVDF matrix, resulting in a homogeneously dispersed and well-connected structure, which improves ion transport efficiency and stability, thereby effectively boosting battery performance. This research highlights the potential of PVDF-Al<sub>2</sub>O<sub>3</sub> nanofiber composite separators for advanced SIBs with high reversibility, a wide operating temperature range, and long cycling life.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"80 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142670981","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}