Research on Chemical Intermediates最新文献

{"title":"Synthesis and characterization of copper MOF of L-ascorbic acid and its catalytic performance in the organic multicomponent reactions","authors":"Mohsen Nikoorazm,&nbsp;Bahman Tahmasbi,&nbsp;Mostafa Koolivand,&nbsp;Maryam Khanmoradi,&nbsp;Mitra Darabi,&nbsp;Shahab Gholami,&nbsp;Yunes Abbasi Tyula","doi":"10.1007/s11164-024-05416-0","DOIUrl":"10.1007/s11164-024-05416-0","url":null,"abstract":"<div><p>A copper coordinated L-ascorbic acid (Cu@AACP) metal–organic framework was synthesized and characterized by thermogravimetric analysis (TGA), Fourier transform infrared spectroscopy (FT-IR), atomic absorption spectroscopy (AAS), scanning electron microscopy (SEM), Brunauer–Emmett–Teller (BET), wavelength dispersive X-ray spectroscopy (WDX), X-ray diffraction (XRD) and energy-dispersive X-ray spectroscopy (EDS). The BET method was used to investigate the textural characteristics of Cu@AACP, including surface area, pore diameter and total pore volume. The SEM analysis was used to investigate the morphology and size of Cu@AACP particles. AAS, WDX and EDS techniques were used to investigate the elemental content of Cu@AACP. The TGA analysis was used to investigate the presence of solvents or moisture, thermal stability and organic–inorganic content of catalyst. The FT-IR spectroscopy was used to the characterization of functional groups in the structure of the materials. The XRD pattern was used to investigate the crystalline phase of the catalyst. The results of the analyses confirmed the successful synthesis of copper MOF of L-ascorbic acid (Cu@AACP). The catalytic performance of Cu@AACP was examined in synthesizing of 2, 3-dihydroquinazolin-4(1H)-ones (through condensation of aldehydes and anthranilamide in ethanol at 80 °C) and polyhydroquinolines (through condensation of aldehydes, dimedone, ammonium acetate and ethyl acetoacetate in ethanol at 80 °C). The reaction conditions for the synthesis of 2, 3-dihydroquinazolin-4(1H)-ones and polyhydroquinolines were optimized, where the best results were obtained in ethanol solvent at 80 °C in the presence of 6 mg of Cu@AACP as catalyst. The results show that an improved product yield is obtained between 84 and 95%. Recycle test of the catalyst confirmed that the heterogeneous catalyst exhibited good catalytic stability, efficiency and very high activity in successive runs because of its unique pore network. To show the stability of Cu@AACP nanocatalyst after recycling, the recovered catalyst was characterized by AAS, FE-SEM, EDS and FT-IR techniques.</p></div>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":"50 11","pages":"5427 - 5450"},"PeriodicalIF":2.8,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142451024","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The effect of methacrylate ternary polymer on the low-temperature flowability of coal-based diesel","authors":"Shun-li Wan,&nbsp;Jing-mei Liu,&nbsp;Xiao-dong Zhou,&nbsp;Qing-yun Hu,&nbsp;Chun-mei Ma,&nbsp;Peng-tao Sun,&nbsp;Yong-guo Su,&nbsp;Rui-tao Ma","doi":"10.1007/s11164-024-05404-4","DOIUrl":"10.1007/s11164-024-05404-4","url":null,"abstract":"<div><p>In this study, tetradecyl methacrylate-maleic anhydride-benzylidene acetone (C₁₄MC-MA-MCA) terpolymers were synthesized via free radical polymerization and evaluated as pour point depressants (PPDs) for coal-based diesel. The findings indicate that the C₁₄MC-MA-MCA (3:1:1) terpolymer exhibited the most effective inhibition of the solid point (SP) at 1500 ppm concentration. Specifically, it reduced the SP of coal-based diesel from − 4 to − 42 °C, marking a significant decrease of 38 °C. Furthermore, the crystallization behavior and SP reduction mechanism of C₁₄MC-MA-MCA in coal-based diesel were investigated using viscosity analysis and polarized optical microscopy (POM).</p></div>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":"50 11","pages":"5545 - 5556"},"PeriodicalIF":2.8,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11164-024-05404-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142451113","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Catalytic functionalization of MCM-41 and MCM-48 with copper by modified template ion-exchange method for low-temperature NH3-SCR process: the role of complexing agents for copper dispersion","authors":"Aleksandra Gomułka,&nbsp;Oliwia Iwaszko,&nbsp;Andrzej Kowalczyk,&nbsp;Zofia Piwowarska,&nbsp;Małgorzata Rutkowska,&nbsp;Lucjan Chmielarz","doi":"10.1007/s11164-024-05414-2","DOIUrl":"10.1007/s11164-024-05414-2","url":null,"abstract":"<div><p>Mesoporous silicas of MCM-41 and MCM-48 types were synthesized and modified with copper by template ion-exchange (TIE) technique. A high dispersion of deposited copper species was managed by subsequent treatment of the samples with ammonia, urea, or acetonitrile solution. Copper-modified silicas were analysed in terms of their chemical composition (ICP-OES), ordering of porous structure (XRD), textural parameters (low-temperature N₂ sorption), dispersion and form of introduced copper species (UV–vis-DR, XRD, H₂-TPR, NH₃-TPD). Mesoporous silicas modified with copper exhibited promising catalytic efficiency in selective catalytic reduction of NO with ammonia (NH₃-SCR). The samples containing dispersed copper species (predominantly monomeric copper cations) presented enhanced catalytic activity compared to catalysts containing CuO aggregates. On the other hand, CuO aggregates showed greater catalytic activity in the side process of direct ammonia oxidation by oxygen present in the reaction mixture. It was demonstrated that TIE post-treatment of the samples with urea resulted in most effective improving dispersion of deposited copper and is less destructive for ordered porous structures of mesoporous silica comparing to treatment with ammonia solution.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":"50 11","pages":"5399 - 5426"},"PeriodicalIF":2.8,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11164-024-05414-2.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142451097","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Reusable magnetic room-temperature Brönsted acidic ionic liquid: synthesis, characterization and evolution of catalytic and biological properties","authors":"Reyhaneh Shamghazani,&nbsp;Ali Ezabadi,&nbsp;Behin Omidi,&nbsp;Marjeneh Samadizadeh","doi":"10.1007/s11164-024-05373-8","DOIUrl":"10.1007/s11164-024-05373-8","url":null,"abstract":"<div><p>We report a novel magnetic ionic liquid (MIL) based on pyridine successfully prepared by a two-step reaction pathway. The prepared MIL was recognized by means of Fourier transform infrared spectroscopy (FT-IR), UV–visible and Raman spectroscopies, thermal analysis (TGA and DTG), magnetic susceptibility measurement, mass spectra (MS), proton NMR (<span>(^{1}hbox {H},hbox {NMR})</span>), carbon NMR (<span>(^{13}hbox {C},hbox {NMR})</span>), Hammett acidity, and CHN elemental analysis. The MIL was shown to be efficient in the synthesis of xanthenediones under solvent-free conditions. In addition, the antibacterial and antifungal activity of the MIL was investigated.</p></div>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":"50 11","pages":"5525 - 5543"},"PeriodicalIF":2.8,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142451098","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Visible light photocatalytic decomposition of organic dye and biodegradation-resistant antibiotic pollutants using cerium-doped tungsten trioxide nanoparticles","authors":"Venkatesh Gopal,&nbsp;Ahmed A. Mohamed,&nbsp;Vadim Ialyshev,&nbsp;Sofian Kanan","doi":"10.1007/s11164-024-05418-y","DOIUrl":"10.1007/s11164-024-05418-y","url":null,"abstract":"<div><p>Ce-doped WO₃ nanoparticles were fabricated and characterized using powder X-ray diffraction (XRD), Fourier-transform infrared (FTIR), Raman, SEM–EDX, UV–Vis, photoluminescence (PL), dynamic light scattering (DLS), and X-ray photoelectron spectroscopy (XPS) analyses. The results revealed the formation of a highly crystalline monoclinic phase in Ce-doped WO₃ photocatalyst (abbreviated WCC), confirmed by Raman spectroscopy. The bandgap was tuned by increasing the percentage of Ce dopant, where the WCC (1 mol wt% Ce-doped WO₃) photocatalyst sample exhibited the highest photocatalytic activity towards synthetic methylene blue (MB) dye pollutant and biodegradation-resistant tetracycline hydrochloride (TC-HCl) antibiotic. The decomposition efficiency using the WCC photocatalyst against aqueous MB dye and TC-HCl antibiotic reached 95% and 51% after exposure to simulated sunlight irradiation for 180 min, with excellent stability after four recycling runs. The interfacial contact between Ce and WO₃ effectively shortened the charge transfer carrier process, enabling redox reactions to provide the best decomposition efficiency over the investigated pollutants. The photodecomposition rate constant of WCC was 0.017 min⁻¹ for MB dye, which is 3.6-fold higher performance than common literature photocatalysts. The results showed the significance of the environmental impact toxicity assessment by applying the treated water to finger millet plant growth. Based on the research feasibility, the synthesized photocatalyst demonstrated superior decomposition against dyes and antibiotics, making it highly suitable for applications in wastewater treatment. Moreover, the use of degraded water resulted in productive plant growth.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":"50 11","pages":"5097 - 5116"},"PeriodicalIF":2.8,"publicationDate":"2024-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142451096","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Nanostructured TiO2 sensitized with CuS quantum dots for solar energy conversion","authors":"Renuka A. Pawar,&nbsp;Shivanand B. Teli,&nbsp;Sandip S. Patil,&nbsp;Kalyanrao M. Garadkar","doi":"10.1007/s11164-024-05417-z","DOIUrl":"10.1007/s11164-024-05417-z","url":null,"abstract":"<div><p>The present paper contains the preparation of QDs sensitized on TiO₂ thin film as a photoanode for solar cell applications. The photoanode is developed by copper sulfide quantum dots (CuS QDs) on TiO₂ thin films using the successive ionic layer adsorption and reaction (SILAR). CuS QDs act as sensitizer because of its strong visible light absorption. Fabrication process comprises sensitizing CuS QDs on the surface of TiO₂ thin films controlled by 5 and 10 SILAR cycles. XRD study indicates the crystallite size of TiO₂/CuS QDs thin films is 11.6 and 13.7 nm for 5 and 10 cycles (cys), respectively. The outcome of UV-DRS and photoluminescence indicates the enhanced light absorption, reduction in bandgap and suppression of electron–hole pair recombination. The HR-TEM image revealed that the diameter of the TiO₂ is 10 nm and surroundings core-like CuS particles are observed. The TiO₂/CuS QDs (10 cys) configuration showed a better photoelectrochemical efficiency of 2.55% at 30 mW cm⁻² light intensity.</p></div>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":"50 11","pages":"5183 - 5199"},"PeriodicalIF":2.8,"publicationDate":"2024-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142451080","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Photocatalytic degradation of malachite Green dye using Ti3C2 MXene nanosheets decorated with Fe3O4 NPs under visible light irradiation","authors":"Amal M. Alkhudaydi,&nbsp;Ekram Y. Danish,&nbsp;Eder Claudio Lima,&nbsp;M.A. Gabal,&nbsp;Mohamed Abdel Salam","doi":"10.1007/s11164-024-05415-1","DOIUrl":"10.1007/s11164-024-05415-1","url":null,"abstract":"<div><p>In this research, a novel Fe₃O₄@Ti₃C₂ MXene nanocomposite was prepared by a simple ultrasonic method by combining Ti₃C₂ MXene and Fe₃O₄ nanoparticles, and was used for the remediation of malachite green (MG) dye, as an example of an organic pollutant, from the environment through photocatalytic degradation under visible light irradiation. A wide variety of techniques were used to characterize the synthesized Fe₃O₄@Ti₃C₂ MXene nanohybrid, including X-ray diffraction analysis (XRD), surface area analysis, scanning and transmission electron microscopy (SEM and TEM), and Fourier transform infrared spectroscopy (FTIR) in addition to the optical properties and band gap analysis. The results showed that the Ti₃AlC₂ MAX phase’s Al layer was successfully selectively etched, resulting in the two-dimensional layered Ti₃C₂ MXene (average diameter of 78 nm). Additionally, the results revealed the preparation of the cubic Fe₃O₄ phase (average particle size of 11 nm), which was distributed homogeneously on the Ti₃C₂ MXene surface, as indicated by XRD, SEM, and TEM analysis. Moreover, the Fe₃O₄@Ti₃C₂ MXene nanophotocatalyst exhibits good visible light absorption ability under visible light (&gt; 420 nm) due to its huge surface area, excellent conductivity, and sufficient quantity of active sites, and the accessibility of all elements required for effective photocatalysis. Accordingly, under 300 min of visible light exposure, the Fe₃O₄@Ti₃C₂ MXene nanophotocatalyst successfully photodegraded MG dye more efficiently than the pure MXene with a removal percentage of 95.4% with 0.5 g/L loading. Overall, the current study has shown that the Fe₃O₄@Ti₃C₂ MXene nanophotocatalyst has the potential to be a valuable photocatalyst for exceptionally efficient wastewater treatment applications.</p></div>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":"50 11","pages":"5117 - 5135"},"PeriodicalIF":2.8,"publicationDate":"2024-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142451079","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Microstructure of highly effective platinum–iridium alloys as catalysts for hydrogen peroxide decomposition","authors":"Julian Wissel,&nbsp;Dominic Freudenmann,&nbsp;Magdalena Ola Cichocka,&nbsp;Almut Pöhl,&nbsp;Iris Stephan-Hofmann,&nbsp;Nicole Röcke,&nbsp;Nicolás Pérez,&nbsp;Thorsten Döhring,&nbsp;Johannes Stadtmüller,&nbsp;Manfred Stollenwerk","doi":"10.1007/s11164-024-05412-4","DOIUrl":"10.1007/s11164-024-05412-4","url":null,"abstract":"<div><p>Catalysts are widely used in research and in industrial applications to enable or to accelerate chemical reactions. One application is monopropellant thrusters for space propulsion systems, which use hydrogen peroxide (H₂O₂) as liquid propellant. The decomposition of liquid hydrogen peroxide into water and oxygen gas, which then finally generates the thrust, can be achieved using noble metal catalysts like platinum and iridium. In this study, iridium–platinum alloys were deposited onto ceramic pellets by a controlled magnetron sputtering process with different parameters. Selected parameters result in coated layers featuring an atomic structure of closed- and/or open-shell microstructures. The catalytic performance of these coated pellets was evaluated in laboratory experiments. The reactivity of sputtered iridium–platinum layers for the decomposition of H₂O₂ was found to be significantly higher with respect to layers of pure iridium coatings. This can be explained by the better reactivity of iridium–platinum alloys, combined with the active control of the surface morphology and the microstructure of the alloy coatings.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":"50 11","pages":"5385 - 5397"},"PeriodicalIF":2.8,"publicationDate":"2024-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142450996","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis of functionalized pyrans catalyzed by amine functionalized plolyboricacid","authors":"Babu Pejjai,&nbsp;K. Ashok,&nbsp;Reddi Mohan Naidu Kalla,&nbsp;Kholood A. Dahlous,&nbsp;Jaewoong Lee","doi":"10.1007/s11164-024-05403-5","DOIUrl":"10.1007/s11164-024-05403-5","url":null,"abstract":"<div><p>This article describes the amalgamated of polyboric acid (PBA) and Aminoethyl-3-Aminopropyltriethoxysilane (AEAPTES) by straightforward extrusion process to produce composite (PBA/AEAPTES). It showed basic nature due to amine functionalities on surface of PBA. The composite is applied for the fabrication of pyran derivatives. These reactions are noteworthy for their large product yields, environmental friendliness, quick reaction times, wide range of substrates and no need of hazardous solvents. Moreover, there is no discernible decrease in activity after four reuses of the catalyst and catalyst separated by simple filtration method without any extraction. The resultant composite is characterized by FT-IR, XRD and SEM analysis. In addition, the synthesized compounds characterized by FT-IR, ¹H, &amp; ¹³C NMR analysis.</p></div>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":"50 11","pages":"5337 - 5348"},"PeriodicalIF":2.8,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142451048","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"“Guanidine hydrochloride assisted one-pot synthesis of 2-amino-4,6-disubstituted-3-cyanopyridine derivatives: a sustainable and greener strategy with catalyst recyclability”","authors":"Pradeep U. Yadav,&nbsp;Vivek D. Zade,&nbsp;Yatin U. Gadkari","doi":"10.1007/s11164-024-05409-z","DOIUrl":"10.1007/s11164-024-05409-z","url":null,"abstract":"<div><p>Here, we highlight an efficient and novel approach for the one-pot multicomponent synthesis of 2-amino-4,6-disubstituted-3-cyanopyridine derivatives through the cyclo-condensation of substituted aromatic aldehydes, ammonium acetate, malononitrile, and aryl ketones under neat conditions. The current protocol offers several key advantages, including short reaction times (approximately 0.55 hours), high yields (up to 96%), mild reaction conditions (80 °C), broad substrate scope, catalyst recyclability, and a simple isolation procedure. The reported method harnesses the catalytic potential of guanidine hydrochloride, serving as a highly effective organo-catalyst, which exhibits exceptional mildness and catalytic activity, facilitating the reaction with high yield. Furthermore, green chemistry metrics such as Eco-Scale (95), E-Factor (0.29), and Process Mass Intensity (1.60) were employed to evaluate the environmental impact of the process.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":"50 11","pages":"5371 - 5384"},"PeriodicalIF":2.8,"publicationDate":"2024-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142451044","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}