ChemistryOpen最新文献_第8页

Design of MnOx/TiO2 Nanostructures for Photocatalytic Removal of 2,4-D Herbicide 光催化脱除2,4- d除草剂的MnOx/TiO2纳米结构设计

IF 2.5 4区化学

ChemistryOpen Pub Date : 2024-12-13 DOI: 10.1002/open.202400154

Angeles Mantilla, Sandra Cipagauta Díaz, Enrique Samaniego Benitez, Francisco Javier Tzompantzi Morales, Michelle Navarrete Magaña

{"title":"Design of MnOx/TiO2 Nanostructures for Photocatalytic Removal of 2,4-D Herbicide","authors":"Angeles Mantilla, Sandra Cipagauta Díaz, Enrique Samaniego Benitez, Francisco Javier Tzompantzi Morales, Michelle Navarrete Magaña","doi":"10.1002/open.202400154","DOIUrl":"10.1002/open.202400154","url":null,"abstract":"The research and modification of semiconductors through different synthesis routes allow obtaining materials with optimal properties to induce new energy levels and improve charge separation efficiency. In this context, the sol-gel method was used to synthesize TiO2-based materials doped with different percentages of MnOx to evaluate their photocatalytic activity in the degradation of the herbicide 2,4-dichlorophenoxyacetic acid (2,4-D) in water under UV irradiation. Characterization results revealed a reduction in crystallite size to 7.2 nm. Adding MnOx enhanced the optical absorption of TiO2, resulting in a shift toward the red end of the spectrum of the forbidden energy band. The photocatalytic activity increased significantly with the percentage of MnOx, reaching a maximum degradation of 70 % in 6 hours with the 3 MnTi material. This increase was attributed to the synthesis method, which facilitated the formation of nanostructured heterojunctions mainly composed of TiO2 and MnO2, reducing the recombination of electron-hole pairs. TEM analysis confirmed these structures. A reaction mechanism for the 3 MnTi material is proposed, considering the mobility of charge carriers and the photooxidation processes of the pollutant.","PeriodicalId":9831,"journal":{"name":"ChemistryOpen","volume":"14 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2024-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11726695/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142817376","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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dl-Limonene as an Alternative Sustainable Solvent to Xylenes for the Industrial Preparation of Release Formulations. l-柠檬烯作为二甲苯的可持续溶剂在工业制剂中的应用。

IF 2.5 4区化学

ChemistryOpen Pub Date : 2024-12-10 DOI: 10.1002/open.202400259

Giuseppe D'Orazio, Rosa Ragone, Antonino Rizzuti, Francesca Serena Abatematteo, Alessandra Ciampa, Giuseppe Ghisa, Michela Casini, Mario Latronico, Vito Gallo, Piero Mastrorilli, Biagia Musio

{"title":"dl-Limonene as an Alternative Sustainable Solvent to Xylenes for the Industrial Preparation of Release Formulations.","authors":"Giuseppe D'Orazio, Rosa Ragone, Antonino Rizzuti, Francesca Serena Abatematteo, Alessandra Ciampa, Giuseppe Ghisa, Michela Casini, Mario Latronico, Vito Gallo, Piero Mastrorilli, Biagia Musio","doi":"10.1002/open.202400259","DOIUrl":"https://doi.org/10.1002/open.202400259","url":null,"abstract":"Many industrial processes use aromatic hydrocarbons as solvents, including benzene, toluene, ethylbenzene, and xylene (BTEX). However, their use is discouraged due to their toxicological profile. Research is ongoing to find alternative more sustainable solvents. This work explores the adoption of dl-limonene as an alternative to BTEX for the industrial preparation of release formulations containing carnauba wax to be employed in the peelable foils industry. A preliminary chemical-physical characterization of carnauba wax was carried out using spectroscopic (ATR-FTIR, NMR) and thermal analyses (DSC). Based on the chemical composition found for the carnauba wax used in the present study, different solvent mixtures and different concentrations of carnauba wax were tested to obtain a clear and stable solution. The most promising formulations were subjected to a coating test on a solid substrate (polyethylene terephthalate, PET) on a laboratory scale, followed by a peeling test to assess the resulting peeling strength. The dl-limonene/ethyl acetate mixture in the 9 : 1 ratio has been identified as the most suitable to completely solubilize carnauba wax (0.38 wt/vol %) and obtain an adequate release performance. The results of these experiments were then used to set up and successfully perform an industrial-scale coating test.","PeriodicalId":9831,"journal":{"name":"ChemistryOpen","volume":" ","pages":"e202400259"},"PeriodicalIF":2.5,"publicationDate":"2024-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142806130","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Front Cover: Protein Quakes in Redox Metalloenzymes: Clues to Molecular Enzyme Conductivity Triggered by Binding of Small Substrate Molecules (ChemistryOpen 12/2024)

IF 2.5 4区化学

ChemistryOpen Pub Date : 2024-12-08 DOI: 10.1002/open.202481201

Henrik Bohr, Irene Shim, Jens Ulstrup, Xinxin Xiao

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A Review on Leaching of Spent Lithium Battery Cathode Materials Adopting Deep Eutectic Solvents. 深共晶溶剂浸出废锂电池正极材料的研究进展。

IF 2.5 4区化学

ChemistryOpen Pub Date : 2024-12-06 DOI: 10.1002/open.202400258

Chongyu Li, Jianjiao Jin, Zhang Yuan, Chenyun Zhang, Liangqin Wu, Chu Wang

{"title":"A Review on Leaching of Spent Lithium Battery Cathode Materials Adopting Deep Eutectic Solvents.","authors":"Chongyu Li, Jianjiao Jin, Zhang Yuan, Chenyun Zhang, Liangqin Wu, Chu Wang","doi":"10.1002/open.202400258","DOIUrl":"https://doi.org/10.1002/open.202400258","url":null,"abstract":"As a result of the swift surge in the adoption of electric vehicles, the quantity of spent lithium-ion power batteries has been growing at an exponential rate. Improper handling of these batteries can lead to the waste of strategic metal resources and pose risks to the environment and human health. Without doubt, it is essential to scientifically recover and reuse these spent power batteries, particularly by recovering positive electrode materials. Currently, there are several methods for recovering positive electrode materials, including pyrometallurgy, hydrometallurgy, bioleaching, and deep eutectic solvents (DESs) leaching. This review concetrated on the emerging technology of DESs leaching for positive electrode materials in spent lithium-ion battery. It provided an overview of the latest advancements in DESs leaching, considering factors such as acidity, reducibility, and coordination of DESs. The current technical status was analyzed and discussed, while also addressing the challenges and prospects for the development of DESs recovery in spent Li-ion power batteries. This work aims to offer practical guidance and serve as a foundation for additional studies and widespread implementation of DESs leaching for positive electrode materials.","PeriodicalId":9831,"journal":{"name":"ChemistryOpen","volume":" ","pages":"e202400258"},"PeriodicalIF":2.5,"publicationDate":"2024-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142784266","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Polyaromatic Cyclophanes Design and their Related Optical Properties. 多芳环烷的设计及其相关光学性质。

IF 2.5 4区化学

ChemistryOpen Pub Date : 2024-12-04 DOI: 10.1002/open.202400207

Oumou Diallo, Jean-Frédéric Audibert, Isabelle Leray, David Kreher, Guillaume H V Bertrand

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Förster Resonance Energy Transfer in Metal Halide Perovskite: Current Status and Future Prospects Förster金属卤化物钙钛矿的共振能量转移：现状与未来展望。

IF 2.5 4区化学

ChemistryOpen Pub Date : 2024-12-04 DOI: 10.1002/open.202400118

Siyang Liu, Waseem Akram, Fanghao Ye, JingCheng Jin, Fangfang Niu, Shakeel Ahmed, Zhengbiao Ouyang, Shou-Cheng Dong, Guijun Li

引用次数: 0

Aerosol Assisted Chemical Vapour Deposition (AACVD) of Zinc dichalcogenoimidodiphosphinate Complexes for the Deposition of Zinc Selenide Thin Films. 气溶胶辅助化学气相沉积法（AACVD）制备硒化锌薄膜的研究。

IF 2.5 4区化学

ChemistryOpen Pub Date : 2024-12-04 DOI: 10.1002/open.202400295

Temidayo Oyetunde, Martins O Omorogie, Paul O'Brien

引用次数: 0

A Triboelectric Nanogenerator Based on TPU/PLA for Basketball Motion Monitoring 基于TPU/PLA的摩擦电纳米发电机用于篮球运动监测。

IF 2.5 4区化学

ChemistryOpen Pub Date : 2024-11-29 DOI: 10.1002/open.202400241

Jun Zhang, Shuai Ma

{"title":"A Triboelectric Nanogenerator Based on TPU/PLA for Basketball Motion Monitoring","authors":"Jun Zhang, Shuai Ma","doi":"10.1002/open.202400241","DOIUrl":"10.1002/open.202400241","url":null,"abstract":"Sports monitoring equipment that integrates advanced sensing technology has attracted widespread attention in recent years. Hence, we proposed a TPU/PLA 3D printing film triboelectric nanogenerator (TP-TENG) to monitor basketball player posture for training effectiveness evaluation. By introducing carbon fibers, TPU/PLA/Carbon film with conductive and positive triboelectric properties was prepared. According to results, the peak power density is 58.38 mW m−2 when the load resistance of 30 MΩ is matched. Nevertheless, when TP-TENG encounters wrinkles and continues to work for a period of time, its output performance will tend to stabilize. And the open-circuit voltage (VOC), transfer charge (QSC), and short-circuit current (ISC) increase to 91 %, 92 %, and 92 %, respectively, almost the same as their original values. Furthermore, the TP-TENG sensor can recognize human posture in different basketball motion posture, including skipping, squatting, walking, running. This work can help to promote the application of 3D printing TENG in basketball sports monitoring.","PeriodicalId":9831,"journal":{"name":"ChemistryOpen","volume":"14 2","pages":""},"PeriodicalIF":2.5,"publicationDate":"2024-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/open.202400241","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142749901","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Wearable Triboelectric Nanogenerator Based on Polyester-Paper Cloth for Mechanical Energy Harvesting and Running Motion Sensing. 基于聚酯纸布的可穿戴摩擦电纳米发电机用于机械能收集和运动传感。

IF 2.5 4区化学

ChemistryOpen Pub Date : 2024-11-29 DOI: 10.1002/open.202400373

Xu Deng

{"title":"A Wearable Triboelectric Nanogenerator Based on Polyester-Paper Cloth for Mechanical Energy Harvesting and Running Motion Sensing.","authors":"Xu Deng","doi":"10.1002/open.202400373","DOIUrl":"https://doi.org/10.1002/open.202400373","url":null,"abstract":"Paper-based triboelectric nanogenerators (P-TENGs) have recently garnered significant attention in wearable electronics. However, traditional P-TENGs are constrained by the inherent strength limitations of paper. Hence, we reported a novel polyester-paper cloth-based triboelectric nanogenerator (PP-TENG) designed for mechanical energy harvesting and running motion monitoring. Compared to paper, polyester-paper cloth has higher durability and tear resistance. The PP-TENG capitalizes on the unique fluffy internal structure of polyester-paper cloth, imparting high sensitivity to pressure variations. Experimental results demonstrate that the PP-TENG achieves an open-circuit voltage (Voc) of 466.64 V, a short-circuit current (Isc) of 48.73 μA, and a transfer charge (Qsc) of 90 nC. Its maximum output power reaches 930.26 μW when connected to a 40 MΩ load. These impressive metrics underscore the potential of PP-TENG in energy harvesting applications, particularly for wearable electronic devices. The device's integration into the soles of athletic socks showcases its practical utility, providing real-time monitoring of runners' gait and step count. This integration not only enhances the functionality of sportswear but also offers valuable data for performance analysis and injury prevention, marking a significant advancement in wearable technology and intelligent textiles. This research provide a promising path for self-powered wearable sensors and flexible electronics applications.","PeriodicalId":9831,"journal":{"name":"ChemistryOpen","volume":" ","pages":"e202400373"},"PeriodicalIF":2.5,"publicationDate":"2024-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142749902","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Bidentate [C,N] and Tridentate [C,N,S] Palladium Cyclometallated Complexes as Pre-Catalysts in Cross-Coupling Reactions. 双齿[C，N]和三齿[C，N，S]环金属钯配合物作为交叉偶联反应的预催化剂。

IF 2.5 4区化学

ChemistryOpen Pub Date : 2024-11-29 DOI: 10.1002/open.202400253

Basma Al Janabi, Francisco Reigosa, Juan M Ortigueira, José M Vila

{"title":"Bidentate [C,N] and Tridentate [C,N,S] Palladium Cyclometallated Complexes as Pre-Catalysts in Cross-Coupling Reactions.","authors":"Basma Al Janabi, Francisco Reigosa, Juan M Ortigueira, José M Vila","doi":"10.1002/open.202400253","DOIUrl":"https://doi.org/10.1002/open.202400253","url":null,"abstract":"Treatment of halide substituted bidentate [C,N] and tridentate [C,N,S] Schiff base ligands with palladium(II) acetate or with lithium tetrachloropalladate, as appropriate, afforded through C-H activation of the organic ligand, the dinuclear (1 a, 1 b) and mononuclear (1 c, 1 d, 1 e) palladacycles, respectively. Reaction of the μ-acetate dinuclear complexes with aqueous sodium chloride in a metathesis process, gave the μ-chloride dinuclear complexes (2 a, 2 b). Treatment of the latter with triphenylphosphine or with bis(diphenylphosphino)methane (dppm)/ammonium hexafluorophosphate in complex/ phosphine 1 : 2 ratio, gave the phosphine derivatives (3 a, 3 b, 4 a, 4 b). Reaction of 1 c and of 1 e with triphenylphosphine/silver perchlorate and dppm/silver perchlorate, respectively, gave compounds 2 c and 2 e with removal of the chloride ligand by precipitation of the silver halide. The compounds were characterized by microanalysis (CHN), IR and 1H and 31P{1H} NMR spectroscopy. The crystal structures of three complexes, 4 a, 1 c and 1 e were studied by single-crystal X-ray diffraction. Furthermore, the performance of the palladacycles were tested as pre-catalysts, namely Suzuki-Miyaura cross-coupling reaction and those furnishing the better results are also reported.","PeriodicalId":9831,"journal":{"name":"ChemistryOpen","volume":" ","pages":"e202400253"},"PeriodicalIF":2.5,"publicationDate":"2024-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142749907","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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