Chemical Synthesis最新文献

Achieving photocatalytic water reduction and oxidation over narrow bandgap FeVO₄ 实现窄带隙FeVO4光催化水还原氧化

Chemical Synthesis Pub Date : 2025-03-10 DOI: 10.20517/cs.2024.159

Shuo Wang, Chunjiang Liu, Can Li, Ningning Wang, Chenyang Li, Zhongxu Yuan, Shanshan Chen, Fuxiang Zhang

{"title":"Achieving photocatalytic water reduction and oxidation over narrow bandgap FeVO<sub>4</sub>","authors":"Shuo Wang, Chunjiang Liu, Can Li, Ningning Wang, Chenyang Li, Zhongxu Yuan, Shanshan Chen, Fuxiang Zhang","doi":"10.20517/cs.2024.159","DOIUrl":"https://doi.org/10.20517/cs.2024.159","url":null,"abstract":"The exploration of novel oxide photocatalysts with narrow bandgaps is highly desirable for efficient photocatalytic water splitting. However, this is rather challenging as reducing the bandgap generally leads to severe charge recombination in photocatalysts. To address these issues, the present work demonstrates, for the first time, the synthesis and application of triclinic FeVO4 with an absorption edge of 575 nm for visible-light-driven photocatalytic water reduction and oxidation. Based on it, the Cr doping strategy is implemented on the FeVO4 photocatalyst to further promote the charge separation and the photocatalytic water splitting performance, achieving an apparent quantum efficiency (AQE) of 0.26% at 420 nm (± 15 nm) for an O2 evolution reaction. Detailed analysis shows that an impurity level below the conduction band minimum originating from the Cr 3d orbital is formed after Cr doping, facilitating the prolonged absorption edge and the enhanced charge separation. This work inaugurates the application field of the narrow bandgap particulate FeVO4 photocatalyst in photocatalytic water splitting, and validates that charge separation can be promoted by Cr doping, both of which are promising to be further developed for efficient solar energy conversion.","PeriodicalId":381136,"journal":{"name":"Chemical Synthesis","volume":"5 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://f.oaes.cc/xmlpdf/38f539c9-ea2b-4f96-b294-b6926f203b72/cs40159.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147332865","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Continuous-flow electrooxidation for scalable biomass upgrading over copper-supported CoFe Prussian blue analogues 连续流电氧化对铜负载的普鲁士蓝类似物的可扩展生物质升级

Chemical Synthesis Pub Date : 2025-01-09 DOI: 10.20517/cs.2024.37

Bowen Zhang, Tian‐Tian Xiao, Cejun Hu, Ziwei Liu, Peng Chen, Zhengyu Zhao, Dingxiang Lai, Jinming Huang, Hongwei Zhang, Xiaojun Bao, Pei Pei Yuan

{"title":"Continuous-flow electrooxidation for scalable biomass upgrading over copper-supported CoFe Prussian blue analogues","authors":"Bowen Zhang, Tian‐Tian Xiao, Cejun Hu, Ziwei Liu, Peng Chen, Zhengyu Zhao, Dingxiang Lai, Jinming Huang, Hongwei Zhang, Xiaojun Bao, Pei Pei Yuan","doi":"10.20517/cs.2024.37","DOIUrl":"https://doi.org/10.20517/cs.2024.37","url":null,"abstract":"Electrochemical biomass upgrading is a promising substitute for oxygen evolution reaction (OER) to generate valuable chemicals in conjunction with hydrogen generation. Pursuing highly efficient and durable electrocatalysts for significant concentration levels (≥ 50 mM) of biomass electrooxidation remains an enduring challenge. Herein, we introduce a robust Cu-supported CoFe Prussian blue analogue (CoFe PBA/CF) electrocatalyst, adept at facilitating high-concentration (50 mM) 5-hydroxymethylfurfural (HMF) oxidation into 2,5-furandicarboxylic acid (FDCA), achieving an exceptional HMF conversion (100%) with a notable FDCA yield of 98.4%. The influence of copper substrate and adsorption energy are therefore discussed. Impressively, the CoFe PBA/CF electrode sustains considerable durability in a continuous-flow electrochemical reactor designed for consecutive FDCA production, showcasing FDCA yields of 100/94% at flow rates of 0.4/0.8 mL·min-1 over 60 h’ uninterrupted electrolysis. This work provides a promising strategy to develop highly efficient and robust electrocatalysts for the consecutive production of high-value products coupled with green H2 production.","PeriodicalId":381136,"journal":{"name":"Chemical Synthesis","volume":"5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147332953","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Chiral cage materials with tailored functionalities for enantioselective recognition and separation 具有定制功能的手性笼材料，用于对映选择性识别和分离

Chemical Synthesis Pub Date : 2024-06-14 DOI: 10.20517/cs.2023.54

Tianyu Li, Yuan Pan, Luyao Ding, Yihong Kang, Xin-Qi Hao, Yujing Guo, Linlin Shi

引用次数: 0

A 3D ordered hierarchical crystalline porous organic salt for large-sized enzyme immobilization 用于大尺寸酶固定的三维有序分层结晶多孔有机盐

Chemical Synthesis Pub Date : 2024-06-12 DOI: 10.20517/cs.2024.24

Jinman Wang, Guolong Xing, Yu Zhao, Jinming Zhou, Bo Song, Li‐Hua Chen, Weidong Zhu, Baolian Su, Teng Ben

{"title":"A 3D ordered hierarchical crystalline porous organic salt for large-sized enzyme immobilization","authors":"Jinman Wang, Guolong Xing, Yu Zhao, Jinming Zhou, Bo Song, Li‐Hua Chen, Weidong Zhu, Baolian Su, Teng Ben","doi":"10.20517/cs.2024.24","DOIUrl":"https://doi.org/10.20517/cs.2024.24","url":null,"abstract":"Crystalline porous organic salts (CPOSs) are an emerging class of promising materials with intrinsic highly polar nanoconfined microporosity. However, their single microporous structure greatly hinders their development in the field of catalysis and adsorption. Constructing a hierarchical porous structure can effectively reduce the mass transport resistance, thus expanding the scope of their applications. Herein, we report the synthesis of a three-dimensional (3D) ordered macro-/microporous hierarchical CPOS (HCPOS-1) using a template-assisted approach for the first time. The as-synthesized HCPOS-1 prepared from a polystyrene colloidal crystal template showcases a 3D ordered macroporous structure while also preserving the microporous structure. The 3D ordered macroporous structure in such a hierarchical structure, together with its hydrophilic surface, endows HCPOS-1 with the ability to immobilize large-sized enzymes through physical adsorption under mild conditions. The resulting catalase/HCPOS-1 showcases a high enzyme immobilization capacity and avoids undesired conformational changes of enzymes during the immobilization process, thus exhibiting excellent catalytic activity for the decomposition of hydrogen peroxide.","PeriodicalId":381136,"journal":{"name":"Chemical Synthesis","volume":"127 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141351654","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","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 of Ag/AgCl/PAF-54 heterojunction photocatalysts for TC degradation 轻松合成用于 TC 降解的 Ag/AgCl/PAF-54 异质结光催化剂

Chemical Synthesis Pub Date : 2024-06-11 DOI: 10.20517/cs.2024.17

Yonghui Lin, Letian Gan, Xiaojun Zhao, Guang Che, Shicheng Wang, Qinhe Pan

{"title":"Facile synthesis of Ag/AgCl/PAF-54 heterojunction photocatalysts for TC degradation","authors":"Yonghui Lin, Letian Gan, Xiaojun Zhao, Guang Che, Shicheng Wang, Qinhe Pan","doi":"10.20517/cs.2024.17","DOIUrl":"https://doi.org/10.20517/cs.2024.17","url":null,"abstract":"Photocatalysis plays an increasingly important role in the field of water treatment. Among the catalysts, Ag nanoparticles (NPs), a type of noble metal NP, show extraordinary potential for photocatalysis. Nevertheless, the aggregation caused by high surface energy limits their applications. The simple synthesis of Ag NPs with uniform size remains a challenge. In this work, a nitrogen-rich porous organic polymer (POP) with reduction ability, porous aromatic framework (PAF)-54, was chosen as the carrier for the in-situ synthesis of Ag NPs. By virtue of the reducing framework of PAF-54 and the formation of the AgCl/PAF-54 heterojunction, the in-situ reduction of Ag(I) was realized, and thus Ag NPs with the particle size of 20-25 nm were uniformly distributed on PAF-54, which exhibit a strong localized surface plasmon resonance (LSPR) effect. Furthermore, the Ag/AgCl/PAF-54 heterojunction effectively suppresses the recombination of photogenerated electrons and holes, leading to the enhanced photocatalytic ability of the composite material. Even with a small catalyst dosage, rapid tetracycline (TC) degradation can be achieved, and the degradation rate of TC reached 94.8% in 30 min. This study offers a facilitated approach for fabricating Ag-based POP composites with superior photocatalytic properties.","PeriodicalId":381136,"journal":{"name":"Chemical Synthesis","volume":"2 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141360588","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sustainable synthesis of Fe-MOR zeolite for efficient capture of CO2 可持续合成用于高效捕获二氧化碳的 Fe-MOR 沸石

Chemical Synthesis Pub Date : 2024-06-06 DOI: 10.20517/cs.2023.70

Pei Liu, Qinming Wu, Keping Yan, Liang Wang, Feng-shou Xiao

引用次数: 0

Graphene oxide membranes using MOF@Chitosan core-shell nanoparticles as dual modulators for dye separation 使用 MOF@ 壳聚糖核壳纳米粒子作为染料分离双重调制剂的氧化石墨烯膜

Chemical Synthesis Pub Date : 2024-05-14 DOI: 10.20517/cs.2023.60

Xingying Wang, Yongmei Guo, Xiaolei Cui, Zhikun Wang, Zhihan Zhang, L. Tosheva, Hailing Guo

{"title":"Graphene oxide membranes using MOF@Chitosan core-shell nanoparticles as dual modulators for dye separation","authors":"Xingying Wang, Yongmei Guo, Xiaolei Cui, Zhikun Wang, Zhihan Zhang, L. Tosheva, Hailing Guo","doi":"10.20517/cs.2023.60","DOIUrl":"https://doi.org/10.20517/cs.2023.60","url":null,"abstract":"Graphene oxide (GO) membranes hold significant promise for the water purification. However, they also face the problem of structural swelling, which limits their use in water treatment applications. In this work, a novel dual-modulated core-shell metal-organic framework@Chitosan (MOF@CS) was successfully synthesized and used as an intercalation cross-linker to optimize the interlayer spacing and stability of GO membranes. Molecular dynamics simulation confirms that MOF@CS, acting as an intercalator, accelerates the water diffusion rate within the channels of the GO layer compared to a pure GO layer. At the same time, Fourier Transform Infrared Spectroscopy analysis reveals that MOF@CS serves as a cross-linker for covalently cross-linking the GO layer. The nanofiltration performance and stability of the improved MOF@CS-GO composite membranes were significantly enhanced. Compared to the pure GO membranes, the MOF@CS-GO composite membranes exhibited enhanced Congo red rejection rates (from 76.5% to 95.6%) while maintaining a high pure water flux (34.5 L·m-2·h-1·bar-1) and good structural stability (stable dye removal performance over 120 h). This dual regulation strategy is expected to effectively solve the swelling problem of GO membranes in aqueous media and open up avenues for advancing their performance.","PeriodicalId":381136,"journal":{"name":"Chemical Synthesis","volume":"19 19","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140982329","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

CoFe2O4 nanoparticles as a bifunctional agent on activated porous carbon for battery-type asymmetrical supercapacitor 将 CoFe2O4 纳米粒子作为活性多孔碳上的双功能剂用于电池型非对称超级电容器

Chemical Synthesis Pub Date : 2024-05-14 DOI: 10.20517/cs.2023.48

Qiang Qu, Zhuo Chen, Guo-Tao Sun, Ling Qiu, Ming-qiang Zhu

{"title":"CoFe2O4 nanoparticles as a bifunctional agent on activated porous carbon for battery-type asymmetrical supercapacitor","authors":"Qiang Qu, Zhuo Chen, Guo-Tao Sun, Ling Qiu, Ming-qiang Zhu","doi":"10.20517/cs.2023.48","DOIUrl":"https://doi.org/10.20517/cs.2023.48","url":null,"abstract":"The low performance of electrode materials is the main obstacle limiting the development of the supercapacitor industry, which can be solved by doping cobalt ferrate nanoparticles (NPs) with carbon materials. Herein, the composites of CoFe2O4 based on activated carbon (AC) were successfully prepared using a one-step solvothermal method and subsequently applied in anodes of battery-type asymmetrical supercapacitors. The effect of solvothermal temperature and heating time on the composite characteristic was systematically evaluated. The electrochemical analysis in the three-electrode system revealed that modified activated carbon heated at 140 °C for 24 h (140MAC24) displayed excellent specific capacitance of 571.36 F/g at the current density of 0.2 A/g due to the synergistic effect of the double-layer and faradic capacitance. Moreover, iron and cobalt elements in CoFe2O4 could change into the oxide form to accelerate charge in potential range window of -1.0 to -0.2 V and discharge from -0.2 to 0.2 V, respectively. Meanwhile, the result of assessing economic feasibility suggested the splendid availability of 140MAC24 electrodes. Additionally, the assembled supercapacitor displayed the outstanding specific capacitance of 171.31 F/g in the potential window of 1.8 V, energy density of 43.5 Wh/kg at the current density of 0.2 A/g, and capacitance retention rate of 82.49% after 10,000 cycles. The excellent electrochemical properties demonstrated that CoFe2O4 could be used as a bifunctional agent for enhancing supercapacitive performance.","PeriodicalId":381136,"journal":{"name":"Chemical Synthesis","volume":"49 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140980687","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Highly selective production of renewable methyl acrylate via aldol condensation over Cu modified nitrogen-containing Beta zeolites 在铜修饰的含氮 Beta 沸石上通过醛醇缩合高选择性地生产可再生丙烯酸甲酯

Chemical Synthesis Pub Date : 2024-04-18 DOI: 10.20517/cs.2024.04

Mei Wang, Lulu Xu, Weiping Zhang

{"title":"Highly selective production of renewable methyl acrylate via aldol condensation over Cu modified nitrogen-containing Beta zeolites","authors":"Mei Wang, Lulu Xu, Weiping Zhang","doi":"10.20517/cs.2024.04","DOIUrl":"https://doi.org/10.20517/cs.2024.04","url":null,"abstract":"Highly selective synthesis of renewable methyl acrylate from bio-sourced formaldehyde and methyl acetate through one-step aldol condensation was successfully realized on Cu-modified nitrogen-containing Beta (NBeta) catalysts. Silicon-29 magic angle spinning nuclear magnetic resonance (29Si MAS NMR), Fourier transform infrared spectroscopy (FT-IR), temperature-programmed desorption of ammonia, temperature-programmed desorption of carbon dioxide, and element analysis indicate that nitridation weakens the acid strength, reduces the number of acidic sites and introduces basic sites through the formation of Si−N bond on Beta zeolites, thereby promoting methyl acrylate selectivity and reducing the coke formation. Adding Cu into NBeta further finely tunes the basicity and acidity balance and thus inhibits the by-product acetone. High methyl acrylate selectivity of 95% and formaldehyde conversion of 99% were achieved over Cu/NBeta catalyst under optimized conditions. The coke content decreases remarkably from 28% on H-form Beta (HBeta) zeolites to 17% on NBeta zeolites doped with Cu due to its appropriate basicity/acidity. Cu/NBeta has good regeneration capability, and the weakening of Si-N species may account for the decline of catalytic performance after successive regeneration. The catalytic performance was restored when the regenerated catalyst was nitridated again.","PeriodicalId":381136,"journal":{"name":"Chemical Synthesis","volume":" 30","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140689221","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Recycling valuable materials from the spent lithium ion batteries to catalysts: methods, applications, and characterization 从废旧锂离子电池中回收有价值的材料制成催化剂：方法、应用和表征

Chemical Synthesis Pub Date : 2024-04-11 DOI: 10.20517/cs.2023.66

Hao-Long Sun, Yun-Peng Xu, Lian Ding, Yu Gu, Jianfeng Li

{"title":"Recycling valuable materials from the spent lithium ion batteries to catalysts: methods, applications, and characterization","authors":"Hao-Long Sun, Yun-Peng Xu, Lian Ding, Yu Gu, Jianfeng Li","doi":"10.20517/cs.2023.66","DOIUrl":"https://doi.org/10.20517/cs.2023.66","url":null,"abstract":"As the prevailing technology for energy storage, the extensive adoption of lithium-ion batteries (LIBs) inevitably results in the accumulation of numerous spent batteries at the end of their lifecycle. From the standpoints of environmental protection and resource sustainability, recycling emerges as an essential strategy to effectively manage end-of-life LIBs and reclaim valuable elements within them. Hydrometallurgy, closely intertwined with catalysis, stands as a relatively mature strategy for achieving high-value utilization of spent LIBs. In this review, our emphasis is placed on the interconnected themes of catalysis within the realm of hydrometallurgical recycling. Specifically, we delve into the crucial role that catalysis plays in both the recycling process of LIBs and the sustainable utilization of their extracted materials in various catalytic applications. This focused exploration aims to contribute insights into the intricate relationship between catalysis and the broader context of LIB recycling, shedding light on its pivotal role in achieving both environmental sustainability and functional material repurposing. Moreover, we highlight advanced characterization techniques, represented by surface-sensitive enhanced Raman spectroscopy, to fundamentally understand the reaction mechanism of catalysts, which, in turn, would inform more rational catalyst designs.","PeriodicalId":381136,"journal":{"name":"Chemical Synthesis","volume":"21 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140715734","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0