Inorganic Chemistry Frontiers最新文献

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Thermally Stable NIR Broad Emission of Cr3+ Doping Phosphor With a High NIR Output Power 具有高近红外输出功率的 Cr3+ 掺杂荧光粉的热稳定近红外宽发射率
IF 7 1区 化学
Inorganic Chemistry Frontiers Pub Date : 2024-08-22 DOI: 10.1039/d4qi01728e
Zhishan Chen, Shaoan Zhang, Zhenzhang Li, Huacong Ye, Haoran Yan, Jialong Xu, Ling Gao, Yang Li, Shizhen Zhang
{"title":"Thermally Stable NIR Broad Emission of Cr3+ Doping Phosphor With a High NIR Output Power","authors":"Zhishan Chen, Shaoan Zhang, Zhenzhang Li, Huacong Ye, Haoran Yan, Jialong Xu, Ling Gao, Yang Li, Shizhen Zhang","doi":"10.1039/d4qi01728e","DOIUrl":"https://doi.org/10.1039/d4qi01728e","url":null,"abstract":"The development of high-performance near-infrared (NIR) luminescent materials remains a significant challenge, particularly in enhancing thermal stability. Herein, we observed an anti-thermal quenching effect in the YGa<small><sub>1.5</sub></small>Al<small><sub>1.5</sub></small>(BO<small><sub>3</sub></small>)<small><sub>4</sub></small>:Cr<small><sup>3+</sup></small> phosphor, with its emission intensity reaching 104% at 423 K and 101% at 483 K compared to room temperature. This anti-thermal quenching is mainly attributed to thermal-induced emission compensation resulting from excited electrons trapped at crystal defects, as confirmed by density functional theory computation. Additionally, YGa<small><sub>1.5</sub></small>Al<small><sub>1.5</sub></small>(BO<small><sub>3</sub></small>)<small><sub>4</sub></small>:Cr<small><sup>3+</sup></small> exhibits a broad NIR emission peaking at 750 nm with a full width at half maximum of 135 nm and a high photoluminescence quantum yield (86%). As a proof-of-concept, we fabricated an NIR phosphor-converted light-emitting diode device that achieves an NIR output power of 59.67 mW with an input working current of 150 mA, demonstrating a photoelectric conversion efficiency of 13.6%. The utilization of this high-power NIR light-emitting diode device as a lighting source enables a penetration depth of up to 15 mm, demonstrating the potential applications of Cr<small><sup>3+</sup></small>-doped YGa<small><sub>1.5</sub></small>Al<small><sub>1.5</sub></small>(BO<small><sub>3</sub></small>)<small><sub>4</sub></small>:Cr<small><sup>3+</sup></small> phosphors for non-invasive detection of biological tissue.","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":null,"pages":null},"PeriodicalIF":7.0,"publicationDate":"2024-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142022059","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Bis-Aromatic MOF System Constructed by a Copper Iodine Cluster and Porphyrinic Ligand for Enhancing Near-Infrared Photothermal Conversion 由铜碘簇和卟啉配体构建的双芳香族 MOF 系统可增强近红外光热转换能力
IF 7 1区 化学
Inorganic Chemistry Frontiers Pub Date : 2024-08-22 DOI: 10.1039/d4qi01543f
Man Cao, Qian-You Wang, Run-Meng Li, Fangfang Dai, Shan Wang, Peng Luo, Jia-Hua Hu, Xi-Yan Dong, Ren-Wu Huang
{"title":"A Bis-Aromatic MOF System Constructed by a Copper Iodine Cluster and Porphyrinic Ligand for Enhancing Near-Infrared Photothermal Conversion","authors":"Man Cao, Qian-You Wang, Run-Meng Li, Fangfang Dai, Shan Wang, Peng Luo, Jia-Hua Hu, Xi-Yan Dong, Ren-Wu Huang","doi":"10.1039/d4qi01543f","DOIUrl":"https://doi.org/10.1039/d4qi01543f","url":null,"abstract":"Near-infrared (NIR) photothermal materials efficiently convert low-energy near-infrared light into heat and have a significant role across various domains. Herein, a copper iodine cluster node (Cu14I14) featuring inorganic aromaticity was assembled with porphyrinic ligands characterized by classical π-aromaticity to create a dual-aromatic crystalline MOF (denoted as Cu14I14-CuTPyP). Cu14I14-CuTPyP with extensive electron delocalization exhibited a broad NIR absorption and achieved a high NIR photothermal conversion efficiency of 63.77% under 1064 nm laser irradiation; this efficiency surpassed those of most reported porphyrin assembly materials. By combining in situ Raman spectroscopy, transient absorption spectroscopy, and control experiments, we revealed that the cooperation between aromatic Cu14I14 and porphyrin led to an active electron transfer pathway in Cu14I14-CuTPyP, which consumed a considerable portion of excited-state molecules (71.4%) through ultrafast nonradiative relaxation channels (2.1 ps). In this study, our thorough investigation of the photothermal properties of bis-aromatic MOFs could aid in the creation of set a new standard for material design.","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":null,"pages":null},"PeriodicalIF":7.0,"publicationDate":"2024-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142042596","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Unusual singlet oxygen-dependent hydroxyl radical production by a unique ruthenium-polypyridyl-hydroxamate complex under visible light irradiation† 在可见光照射下,一种独特的多吡啶基羟基氨基甲酸酯钌复合物产生的不寻常的单线态氧依赖性羟基自由基
IF 6.1 1区 化学
Inorganic Chemistry Frontiers Pub Date : 2024-08-22 DOI: 10.1039/D4QI00853G
Tian-Shu Tang, Li Mao, Chun-Hua Huang, Chuan-Fang Zhao, Zhi-Sheng Liu, Jing Chen and Ben-Zhan Zhu
{"title":"Unusual singlet oxygen-dependent hydroxyl radical production by a unique ruthenium-polypyridyl-hydroxamate complex under visible light irradiation†","authors":"Tian-Shu Tang, Li Mao, Chun-Hua Huang, Chuan-Fang Zhao, Zhi-Sheng Liu, Jing Chen and Ben-Zhan Zhu","doi":"10.1039/D4QI00853G","DOIUrl":"10.1039/D4QI00853G","url":null,"abstract":"<p >Ruthenium polypyridyl complexes have been widely used in photodynamic therapy, during which singlet oxygen (<small><sup>1</sup></small>O<small><sub>2</sub></small>) plays a crucial role. Here, we synthesized a unique Ru complex Ru(bpy)<small><sub>2</sub></small>PhenHA (bpy – bipyridine, Phen – 1,10-phenanthroline, HA – hydroxamic acid) and unexpectedly found that not only <small><sup>1</sup></small>O<small><sub>2</sub></small>, but also reactive hydroxyl radical (˙OH) could be produced under visible-light irradiation of Ru(bpy)<small><sub>2</sub></small>PhenHA in the presence of a classic spin trapping agent, 5,5-dimethyl-1-pyrroline <em>N</em>-oxide (DMPO). Analogous ˙OH production was also observed with 3,3,5,5-tetramethyl-1-pyrroline-<em>N</em>-oxide (TMPO), but not with other spin trapping agents. In contrast, much less ˙OH was produced when substituting Ru(bpy)<small><sub>2</sub></small>PhenHA with Ru(bpy)<small><sub>2</sub></small>Phen lacking the HA group. However, when <em>N</em>-methyl-benzohydroxamic acid (a typical HA with reducing properties) was added into the DMPO/Ru(bpy)<small><sub>2</sub></small>Phen/VIS system, not only ˙OH, but also the corresponding secondary nitroxide radical was clearly detected. Similar results were also observed with other structurally-different reducing agents. Further studies with other known spin trapping agents suggest that the [DMPO–OOH]˙ intermediate might be transiently produced and then rapidly decomposed to produce ˙OH. Taken together, the molecular mechanism for the unusual ˙OH production was proposed: visible-light irradiation of Ru(bpy)<small><sub>2</sub></small>PhenHA produced <small><sup>1</sup></small>O<small><sub>2</sub></small>, which electrophilically added on DMPO, forming a peroxide intermediate, which then quickly decomposed to a biradical [DMPO–OO]˙˙. Then, H-abstraction took place between [DMPO–OO]˙˙ and the reducing hydroxamic acid, forming the unstable [DMPO–OOH]˙, which decomposed homolytically to produce ˙OH. These findings revealed a novel ˙OH-generating system mediated by Ru complexes, which were not only dependent on DMPO, but also on <small><sup>1</sup></small>O<small><sub>2</sub></small> and the presence of H-donating agents. These findings may have broad chemical and biomedical implications.</p>","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":null,"pages":null},"PeriodicalIF":6.1,"publicationDate":"2024-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142022056","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Halogen regulation of multifunctional hybrid materials with photoluminescence and dielectric response† 卤素调节具有光致发光和介电响应的多功能混合材料
IF 6.1 1区 化学
Inorganic Chemistry Frontiers Pub Date : 2024-08-22 DOI: 10.1039/D4QI01774A
Jiu-Yang Liu, Ming Zhu, Feng-Wen Zhang, Hao-Fei Ni, Zhi-Long Li, Bo Zhuang, Kun Ding, Da-Wei Fu, Hai-Feng Lu and Meng-Meng Lun
{"title":"Halogen regulation of multifunctional hybrid materials with photoluminescence and dielectric response†","authors":"Jiu-Yang Liu, Ming Zhu, Feng-Wen Zhang, Hao-Fei Ni, Zhi-Long Li, Bo Zhuang, Kun Ding, Da-Wei Fu, Hai-Feng Lu and Meng-Meng Lun","doi":"10.1039/D4QI01774A","DOIUrl":"10.1039/D4QI01774A","url":null,"abstract":"<p >Organic–inorganic hybrid switching materials are extensively employed as stimulus-responsive materials in sensors, intelligent switches, optoelectronic devices, <em>etc</em>. However, the design of organic–inorganic hybrid materials (OIHMs) that integrate the dielectric switching response and superior photoluminescence (PL) continues to encounter challenges. Here, we synthesized three zero-dimensional (0D) organic–inorganic hybrid PL compounds using a halogen regulation strategy, (2,5-FBTA)<small><sub>2</sub></small>MnX<small><sub>4</sub></small> (2,5-FBTA = 2,5-difluorobenzyltrimethylammonium, X = Br, Cl, I), which are FBTAM-Br, FBTAM-Cl, and FBTAM-I. With the halogen atom transitioning from I to Br, the phase transition temperature (<em>T</em><small><sub>p</sub></small>) gradually increases due to the enhanced intermolecular interaction force, with the <em>T</em><small><sub>p</sub></small> of FBTAM-I, FBTAM-Cl, and FBTAM-Br being 419, 425, and 438 K, respectively. In addition, the three compounds show excellent PL properties, and as the halogen atom transitions from I to Br, the PL quantum yields (PLQY) of FBTAM-I, FBTAM-Cl, and FBTAM-Br are 54.59%, 63.81% and 78.98%, respectively. Through a halogen regulation strategy, multifunctional OIHMs with dielectric and PL properties have been successfully synthesized. This not only enhances comprehension of the correlation between structures and properties but also introduces novel and innovative perspectives for the development of multifunctional OIHMs.</p>","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":null,"pages":null},"PeriodicalIF":6.1,"publicationDate":"2024-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142022055","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Cobalt and lithium recovery from spent LiCoO2 using a free-standing potassium zinc hexacyanoferrate/carbon cloth composite electrode 使用独立式六氰合铁酸钾锌/碳布复合电极从废钴酸锂中回收钴和锂
IF 7 1区 化学
Inorganic Chemistry Frontiers Pub Date : 2024-08-22 DOI: 10.1039/d4qi01752h
Mengxiang Ye, Huaimeng Li, Xi Wu, Guofeng Zhang, Yunxia Zhang
{"title":"Cobalt and lithium recovery from spent LiCoO2 using a free-standing potassium zinc hexacyanoferrate/carbon cloth composite electrode","authors":"Mengxiang Ye, Huaimeng Li, Xi Wu, Guofeng Zhang, Yunxia Zhang","doi":"10.1039/d4qi01752h","DOIUrl":"https://doi.org/10.1039/d4qi01752h","url":null,"abstract":"Rapid rejuvenation and extensive utilization of mobile electronic devices lead to the excessive accumulation of waste lithium-ion batteries (LIBs), especially represented by spent LiCoO2 cathode materials. Considering the shortage of metals resources and the surging price of raw materials in the battery industry, it is in urgent demand to exploit an efficient strategy for selectively extract valuable metals from spent LiCoO2. Herein, the nanocube-like potassium zinc hexacyanoferrate (denoted as KZHCF) has been successfully fabricated on carbon cloth (CC) substrate for selective Co2+ adsorption from spent LiCoO2 cathode via the combination of simple electrodeposition and hydrothermal treatment. Under the optimal operational conditions, 98.6% of Co2+ is effectively extracted within 120 min at a constant potential of −0.4 V (vs. Ag/AgCl) with CC/KZHCF composite as working electrode, accompanied by a Co2+ electrosorption capacity of 130.9 mg∙g−1. Further, lithium ions in the electrolyte are separated and recovered in the form of Li2CO3 via simple chemical precipitation, highlighting the feasibility of the developed electrochemical system toward cobalt and lithium recovery. Significantly, the CC/KZHCF electrode materials can be regenerated through simple potential inversion; while the adsorbed Co2+ ions are facilely desorbed from the electrode surface and recovered as Co(OH)2. This work will provide a meaningful guidance for the separation and recovery of various metals from waste LIBs.","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":null,"pages":null},"PeriodicalIF":7.0,"publicationDate":"2024-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142022054","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Air promotes efficient and selective CO2 photoreduction with a molecule/semiconductor hybrid photocatalyst: the significant role of simultaneous photodegradation of organic pollutants† 空气促进分子/半导体混合光催化剂对二氧化碳的高效和选择性光降解:同时光降解有机污染物的重要作用
IF 6.1 1区 化学
Inorganic Chemistry Frontiers Pub Date : 2024-08-20 DOI: 10.1039/D4QI01739K
Xinyue Hong, Yuru Zhu and Duobin Chao
{"title":"Air promotes efficient and selective CO2 photoreduction with a molecule/semiconductor hybrid photocatalyst: the significant role of simultaneous photodegradation of organic pollutants†","authors":"Xinyue Hong, Yuru Zhu and Duobin Chao","doi":"10.1039/D4QI01739K","DOIUrl":"10.1039/D4QI01739K","url":null,"abstract":"<p >The photoreduction of CO<small><sub>2</sub></small> with atmospheric air represents a promising avenue toward the sustainable utilization of CO<small><sub>2</sub></small>. Herein, a noble-metal free molecule/semiconductor hybrid photocatalyst has been employed for the first time for converting CO<small><sub>2</sub></small> to CO with 100% selectivity in water and simultaneous photodegradation of tetracycline in the presence of air. The hybrid photocatalyst consists of carbon nitride and a molecular Ni(<small>II</small>)–terpyridine complex, which shows an order of magnitude improvement in CO yield when exposed to a mixed CO<small><sub>2</sub></small>/air atmosphere compared to high-purity CO<small><sub>2</sub></small> conditions. The CO yield is up to 623.3 μmol g<small><sup>−1</sup></small>, among the highest for CO<small><sub>2</sub></small> photoreduction in the presence of air. Our findings reveal that the simultaneous photodegradation of tetracycline is vital for the enhanced yield of CO in the presence of air. The photodegradation process consumes more photogenerated holes, aided by reactive oxygen species, which further optimizes the separation of photogenerated electron–hole pairs. Consequently, photogenerated electrons in the conduction band migrate more efficiently to the linked Ni(<small>II</small>)–terpyridine moiety, leading to improved CO<small><sub>2</sub></small> photoreduction efficiency. Notably, the presence of air does not inhibit but actually promotes the photoreduction of CO<small><sub>2</sub></small>. This study provides a unique strategy in which photocatalytic removal of organic pollutants is integrated with high-performance CO<small><sub>2</sub></small> photoreduction with the aid of air.</p>","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":null,"pages":null},"PeriodicalIF":6.1,"publicationDate":"2024-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142007630","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Applications of metal N-heterocyclic carbene complexes in olefin polymerizations 金属 N-杂环羰基络合物在烯烃聚合中的应用
IF 6.1 1区 化学
Inorganic Chemistry Frontiers Pub Date : 2024-08-20 DOI: 10.1039/D4QI01470G
Ting Feng, Le Zhang, Shang-Xiao Wu, Xiaochao Shi and Ying-Feng Han
{"title":"Applications of metal N-heterocyclic carbene complexes in olefin polymerizations","authors":"Ting Feng, Le Zhang, Shang-Xiao Wu, Xiaochao Shi and Ying-Feng Han","doi":"10.1039/D4QI01470G","DOIUrl":"10.1039/D4QI01470G","url":null,"abstract":"<p >Polyolefins play an important role in modern society and are applied as both commodity plastics and high-performance polymers. Nowadays, they are widely used in large-scale industrial production and considered one among the most important polymers in the world. Since the 1950s, the exploration of Ziegler–Natta catalysts has not just brought continuous breakthroughs in the industrialization of polyolefins, but has also promoted the development of research in organometallic chemistry. Obviously, a key and long-standing focus in the polyolefin industry is the investigation of new metal catalysts that possess customizable catalytic performances. Over the past few decades, metal complexes with N-heterocyclic carbene (NHC) ligands have achieved great improvements and found vast applications in diverse research fields, and definitely, they have been also demonstrated to show excellent catalytic performances in olefin polymerization. Numerous reviews have been published on the catalytic performances of NHC-chelated metal complexes; however, a comprehensive overview of them with the central metals across the periodic table in olefin polymerization is currently lacking. This review aims to bridge this gap by providing a comprehensive summary of NHC catalysts and their corresponding structure–activity relationships in the polymerization and copolymerization of different olefins.</p>","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":null,"pages":null},"PeriodicalIF":6.1,"publicationDate":"2024-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142013815","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Review on Covalent Organic Frameworks: Exploration of Their Growing Potential as Porous Materials in Photocatalytic Applications 共价有机框架综述:探索多孔材料在光催化应用中日益增长的潜力
IF 7 1区 化学
Inorganic Chemistry Frontiers Pub Date : 2024-08-19 DOI: 10.1039/d4qi01480d
Kamal Prakash, Rakesh Deka, Shaikh M. Mobin
{"title":"A Review on Covalent Organic Frameworks: Exploration of Their Growing Potential as Porous Materials in Photocatalytic Applications","authors":"Kamal Prakash, Rakesh Deka, Shaikh M. Mobin","doi":"10.1039/d4qi01480d","DOIUrl":"https://doi.org/10.1039/d4qi01480d","url":null,"abstract":"Photocatalysis powered by unlimited solar energy is an effective strategy to resolve energy and environmental issues. To achieve an efficient photocatalytic system, photocatalysts need to be highly crystalline and porous with excellent photostability under extreme conditions. Covalent organic framework (COF) has shown immense potential for photocatalytic application due to its unique structure, electronic, and photophysical characteristics. COF possesses a crystalline porous network with light absorption capabilities and excellent stability. Functionalized COFs can be developed through organic unit variation to obtain broader absorption, narrow bandgap, effective charge separation, and transportation. Furthermore, high photocatalytic efficiency can be achieved by heterostructure formation through anchoring or post-synthetic modification. Our review is focused on the recent advancement of COF as photocatalysts for various photocatalytic applications. The exploration commences by emphasizing the topological design, linkage chemistry, and functionalization of COFs, underscoring principles and requirements for high photocatalytic efficiency. It provides a deep dive into COF capabilities in different photocatalytic applications, covering areas such as hydrogen and oxygen evolution, carbon dioxide reduction, organic transformation, and organic pollutant degradation. Finally, it summarizes the pivotal points that need demanding attention and outlines future avenues, to offer fresh perspectives and contribute to revolutionary innovations in this rapidly evolving field.","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":null,"pages":null},"PeriodicalIF":7.0,"publicationDate":"2024-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142007597","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Fabrication of a multifunctional ionic covalent organic framework via the Menshutkin reaction and ion-exchange for dual-mode detection of organochlorine pesticides and design of a smartphone sensing platform† 通过门舒特金反应和离子交换制备用于双模式检测有机氯农药的多功能离子共价有机框架并设计智能手机传感平台
IF 6.1 1区 化学
Inorganic Chemistry Frontiers Pub Date : 2024-08-19 DOI: 10.1039/D4QI01698J
Xiaoqin Shen and Bing Yan
{"title":"Fabrication of a multifunctional ionic covalent organic framework via the Menshutkin reaction and ion-exchange for dual-mode detection of organochlorine pesticides and design of a smartphone sensing platform†","authors":"Xiaoqin Shen and Bing Yan","doi":"10.1039/D4QI01698J","DOIUrl":"10.1039/D4QI01698J","url":null,"abstract":"<p >The synthesis of ionic covalent organic frameworks (iCOFs) is considerably limited due to the low solubility and challenging synthesis of the required monomers, making the ionic conversion of neutral COFs <em>via</em> post-synthetic modification (PSM) a viable alternative. Herein, we successfully converted a neutral COF (TfaTta) into a cationic COF (TfaTta–Br) through the Menshutkin reaction, utilizing benzyl bromide (BnBr) as the halogenated hydrocarbon, which subsequently underwent ion-exchange with the anionic compound methyl blue (MB) to generate a multifunctional material (TfaTta–MB) with dual emission. Studies demonstrated that TfaTta–MB is capable of ratiometric sensing of dicamba (DMA) and 2,6-dichloro-4-nitroaniline (DCN), two commonly used organochlorine pesticides, with limits of detection as low as 0.0241 μM and 0.128 μM, respectively. Density functional theory (DFT) calculations were performed for further research on the responsive mechanism. A hydrogel film (TfaTta–MB/AG) was prepared and affixed to a laboratory glove, creating a portable sensing device for detecting pesticide residues on the surface of vegetables. Notably, the obtained material enables colorimetric sensing of DMA and a smart sensing platform has been developed leveraging this functionality. In short, this work not only broadens the scope of ion transformation methods for neutral COFs, but also imposes great improvement in ratiometric sensing for organochlorine pesticide residues.</p>","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":null,"pages":null},"PeriodicalIF":6.1,"publicationDate":"2024-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142007621","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A novel albumin-binding macrocyclic Gd-HPDO3A complex bearing a deoxycholic acid residue: the role of the hydration state, water exchange and local dynamics in the observed relaxivity† 带有脱氧胆酸残基的新型白蛋白结合大环 Gd-HPDO3A 复合物:水合状态、水交换和局部动力学在观察到的弛豫性中的作用
IF 6.1 1区 化学
Inorganic Chemistry Frontiers Pub Date : 2024-08-19 DOI: 10.1039/D4QI00894D
Ferdeze Hasallari, Carla Carrera, Eleonora Cavallari, Eliana Gianolio and Silvio Aime
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