Research on Chemical Intermediates最新文献

{"title":"Impact of N-heteroaromatic compounds in chromium(VI) directed oxidation of organic substrates","authors":"Monirul Islam,&nbsp;Pintu Sar","doi":"10.1007/s11164-025-05678-2","DOIUrl":"10.1007/s11164-025-05678-2","url":null,"abstract":"<div><p>The heteroaromatic compounds with N-atoms in their molecular structure can produce a significant impact on the kinetics of oxidative transformation as directed by chromium(VI). These compounds are well-recognized as ‘promoters’ on account of their rate enhancement property in chromium(VI) oxidation kinetics. As revealed from the literature, the electron transfer step becomes facile when the <i>N</i>-containing heteroaromatic compounds are susceptible to shape the conjugates proficiently with chromium(VI) species during redox processes. Noticeably, the suitable orientation of binding sites of heteroaromatic compounds produces faster oxidation kinetics. The present review comprehensively highlights the specific role of <i>N</i>-heteroaromatic compounds in chromium(VI) oxidation along with the crucial factors responsible for influencing the rate of redox transformation. The utility and scope of such compounds in the field of analytical chemistry are also emphasized in this account.</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":"51 9","pages":"5101 - 5129"},"PeriodicalIF":3.5,"publicationDate":"2025-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144918429","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":"A convenient metal-free one-pot synthesis of some phthalazine derivatives mediated by 3-picolinic acid","authors":"Izarul Islam,&nbsp;Anamul Hossain,&nbsp;Shormila R. Das,&nbsp;Md. Mominuddin,&nbsp;Pijush K. Roy,&nbsp;Pran Gopal Karmaker,&nbsp;Harendra N. Roy","doi":"10.1007/s11164-025-05682-6","DOIUrl":"10.1007/s11164-025-05682-6","url":null,"abstract":"<div><p>A convenient four-component condensation reaction of phthalimide, hydrazine hydrate, malononitrile, and aromatic aldehyde has been executed by 3-picolinic acid in ethanol at reflux temperature in a very simple way. This developed method for synthesizing nitrilo-phthalazine derivatives is operationally simple, cost-effective, easy for product purification, environmentally benign, and high-yielding.</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":"51 9","pages":"4985 - 4997"},"PeriodicalIF":3.5,"publicationDate":"2025-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144918427","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":"Advancing sustainable biofuel additive production via urea-carbonylated mannose over lanthanum triflate supported on aluminum oxide catalysts","authors":"Anisah Sajidah Saud,&nbsp;Muhammad Sheraz Ahmad,&nbsp;Venkata Rao Madduluri,&nbsp;Gaanty Pragas Maniam,&nbsp;Mohd Hasbi Ab Rahim","doi":"10.1007/s11164-025-05662-w","DOIUrl":"10.1007/s11164-025-05662-w","url":null,"abstract":"<div><p>This study reports the successful synthesis of a lanthanum triflate-supported alumina (LT/Al₂O₃) catalyst for the production of mannose carbonate via the alcoholysis of urea and D-mannose. This bifunctional catalytic system enables a solvent-free, one-pot process at a moderate temperature (140 °C), achieving high yields of mannose carbonate (69–96%) with reduced side product formation compared to conventional methods. The catalyst demonstrated a synergistic effect between the strong Lewis acid sites of La³⁺ and the high surface area of the Al₂O₃ support, leading to enhanced catalytic performance relative to unsupported lanthanum triflate. A novel synthetic pathway was proposed based on compound identification by gas chromatography-mass spectrometry (GC–MS), using spectral matching with reference mass spectral libraries. Catalyst recyclability was evaluated over five consecutive reaction cycles, with the regenerated catalyst maintaining activity and achieving an 86.54% yield through the fourth cycle. Additionally, the gasoline-mannose carbonate blend exhibited a lower maximum exhaust temperature (430 °C) compared to commercial gasoline (470 °C), indicating improved thermal efficiency attributed to the blend’s reduced viscosity. The blend also demonstrated a superior cooling effect and was able to maintain the lubricant oil at 115 °C compared to 123 °C with commercial gasoline, further supporting its potential as an energy-efficient fuel additive.</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":"51 9","pages":"4957 - 4984"},"PeriodicalIF":3.5,"publicationDate":"2025-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11164-025-05662-w.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144918337","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":"Ultrasound-assisted green synthesis of 1,8-dioxo-decahydroacridines catalyzed by guanidine hydrochloride","authors":"Mayuri B. Thorat,&nbsp;Aniket N. Timble,&nbsp;Yatin U. Gadkari,&nbsp;Prashant Kurkute","doi":"10.1007/s11164-025-05677-3","DOIUrl":"10.1007/s11164-025-05677-3","url":null,"abstract":"<div><p>A novel, highly efficient, and eco-friendly method is introduced for synthesizing 1,8-dioxo-decahydroacridines via a multicomponent reaction involving substituted aromatic aldehydes, 5,5-dimethyl-1,3-cyclohexanedione, and aromatic amines, utilizing guanidine hydrochloride (GdnHCl) as a catalyst. This environmentally sustainable approach eliminates the need for hazardous solvents and extensive purification procedures, offering a column-free, high-yield, energy-efficient solution. This method demonstrates exceptional environmental sustainability, characterized by high atom economy (88.66%), minimal waste generation (E-factor = 0.041), and an excellent Eco-scale score of 95, underscoring its eco-friendly nature. The catalytic system exhibits remarkable efficiency, with a turnover number (TON) of 40 and a turnover frequency (TOF) of 0.044 s⁻¹, while maintaining its activity across multiple reaction cycles.</p></div>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":"51 9","pages":"5043 - 5057"},"PeriodicalIF":3.5,"publicationDate":"2025-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144918330","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":"MgAl2O4/CoFe2O4/Zeolite A magnetic ceramic nanocomposite for efficacious elimination of Methylene blue from aqueous solutions: composition influence","authors":"Sania Sanjabi,&nbsp;Alireza Salehirad","doi":"10.1007/s11164-025-05679-1","DOIUrl":"10.1007/s11164-025-05679-1","url":null,"abstract":"<div><p>MgAl₂O₄/CoFe₂O₄/Zeolite A magnetic nanocomposite has been designed and fabricated as an efficacious adsorbent to eliminate methylene blue (MB) from aqueous solutions. The influence of the nanocomposite chemical composition and as well as the adsorption conditions on the MB removal efficiency has been perused. The comparative study of kinetic models defined which the MB adsorption onto the nanocomposite followed pseudo-second-order kinetics. Pursuant to the experimental results analyzed using Langmuir isotherm, the maximum adsorption capacity of MB on the nanocomposite was 19.33 mg/g. Under optimal adsorption conditions including a temperature of 50 °C, a contact time of 30 min, an adsorbent dosage of 0.3 g, a pH 12 and an adsorbed initial concentration of 40 mg.L⁻¹, a removal efficiency of 99.9% was achieved. The thermodynamic investigation of MB adsorption onto the nanocomposite recognized that the process was endothermic and accompanied by an increase in entropy.</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":"51 9","pages":"4907 - 4935"},"PeriodicalIF":3.5,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144918605","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 NiO/Ag2CO3 heterojunctions and their visible light catalytic activity","authors":"Shuang Gao,&nbsp;Yong Li,&nbsp;Tian Li,&nbsp;Yulan Ren","doi":"10.1007/s11164-025-05681-7","DOIUrl":"10.1007/s11164-025-05681-7","url":null,"abstract":"<div><p>In this paper, NiO/Ag₂CO₃ heterojunction was prepared by ultrasonic assisted precipitation method. XRD, SEM, TEM, PL, EIS and UV–Vis DRS were used to analyze the morphology, structural composition, optical and electrical properties of NiO/Ag₂CO₃. The NiO/Ag₂CO₃ composite photocatalysts exhibited good photocatalytic degradation activity on the non-azo dyes Rhodamine B (RhB), Methylene Blue (MB) and the azo dye Methyl Orange (MO) after irradiation for 30 min, with degradation efficiencies of 95.98%, 98.52%, and 87.68%, respectively. This is mainly attributed to the construction of heterojunctions and the increase in the separation rate of photogenerated electron–hole pairs. The free radical capture experiment confirmed that the main active substances in the reaction process are h⁺ and·O₂⁻, while the role of OH in the degradation process is relatively small.</p></div>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":"51 9","pages":"5211 - 5223"},"PeriodicalIF":3.5,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144918606","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":"Phytic acid-modified porous organic polymer for efficient adsorption of U(VI) from aqueous solution and simulated seawater","authors":"Yan He,&nbsp;Qingwang Du,&nbsp;Shuna Wen,&nbsp;Tong Yu,&nbsp;Na Wang,&nbsp;Dingzhong Yuan,&nbsp;Bing Na","doi":"10.1007/s11164-025-05646-w","DOIUrl":"10.1007/s11164-025-05646-w","url":null,"abstract":"<div><p>In this work, an amine functionalized porous organic polymer (POP-ABP-NH₂) was synthesized by one-step Friedel–Crafts alkylation reaction using 2-aminobiphenyl as an organic monomer and p-dichlorobenzyl as a crosslinker. Then, POP-ABP-NH₂ was functionalized with different concentrations of phytic acid (PA, 30% and 50%) through hydrothermal reaction, and new phytic acid-modified porous organic polymers (POP-ABP-PA-1 and POP-ABP-PA-2) were successfully synthesized. The adsorption performance of the adsorbents for U(VI) ions in aqueous solution and simulated seawater was studied. The results show that the higher PA concentration, the smaller the specific surface area (<i>S</i>_<i>BET</i> POP-ABP-PA-2 (185.84 m²/g) &lt; <i>S</i>_<i>BET</i> POP-ABP-PA-1 (598.43 m²/g)). This may be because the high concentration of PA occupies more pore sites, resulting in a decrease in specific surface area. The adsorption kinetics of the materials for U(VI) conform to the pseudo-second-order kinetic adsorption model, and the adsorption isotherm conform to the Langmuir monolayer adsorption model. Under the optimal adsorption conditions, the maximum adsorption capacity of POP-ABP-PA-2 for U(VI) (q_max = 1372.2 mg/g) is much higher than that of POP-ABP-PA-1 (q_max = 769.2 mg/g). This may be because POP-ABP-PA-2 is connected to a high concentration of PA and has a high phosphorus and oxygen content, resulting in stronger coordination ability and higher adsorption capacity. Most importantly, in simulated seawater at pH = 8, POP-ABP-PA-2 exhibited a high theoretical adsorption capacity of 299.4 mg/g in 150 min. In addition, in a solution where many impurity ions coexist, POP-ABP-PA-2 can still exhibit excellent adsorption selectivity for U(VI), and after five adsorption–desorption cycles, the adsorption removal percentage of U(VI) can still be maintained at 90%. This study provides an important research idea for further developing phytic acid (PA) composites for U(VI) adsorption.</p></div>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":"51 11","pages":"6613 - 6632"},"PeriodicalIF":3.5,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145296443","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":"Hydrothermal-assisted green synthesis of Ag-doped ZnO nanoparticles using Punica granatum peel extract for enhanced photocatalytic and antibacterial applications","authors":"T. Arun Kumar,&nbsp;V. Subha,&nbsp;G. Hari Hara Priya,&nbsp;S. Mahalakshmi","doi":"10.1007/s11164-025-05676-4","DOIUrl":"10.1007/s11164-025-05676-4","url":null,"abstract":"<div><p>In the present study, ZnO nanoparticles doped with 5 and 8% Ag were synthesized using a green method with <i>Punica granatum</i> peel extract. Characterization of ZnO nanoparticles revealed a sharp peak in the UV–Vis spectra at 360–380 nm, spherical morphology in scanning electron microscope analysis, and microsphere edges with clear fringes and separations of 0.329 and 0.252 nm in transmission electron microscope analysis. The synthesized nanoparticles were utilized to investigate the photocatalytic degradation of crystal violet (CV) and methyl orange (MO) dyes in an aqueous environment under UV irradiation. The study demonstrated that 5% Ag-doped ZnO nanoparticles are highly efficient photocatalysts, achieving a 93% reduction in MO and an 88% decrease in CV concentration within a short duration of 90 min. The 5% Ag-doped ZnO composite exhibited a rate constant of 0.046 min⁻¹, significantly higher than that of pure ZnO (0.027 min⁻¹), while the 8% Ag-doped ZnO showed a slight decline in photocatalytic activity with a rate constant of 0.035 min⁻¹). Additionally, the antibacterial activity of the synthesized nanoparticles was tested against various Gram-positive (Staphylococcus aureus and Bacillus subtilis) and Gram-negative (Escherichia coli and Pseudomonas aeruginosa) bacterial strains. The 5% Ag-doped ZnO nanoparticles exhibited significantly enhanced antibacterial activity, as evidenced by a larger zone of inhibition, compared to both pristine ZnO- and 8% Ag-doped ZnO, indicating that 5% is the optimal doping concentration for maximum antibacterial efficacy. These findings highlight the strong antibacterial potential of the synthesized Ag-doped ZnO nanoparticles, with Punica granatum peel extract playing a critical role in increasing both antibacterial and photocatalytic activity.</p></div>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":"51 10","pages":"5451 - 5477"},"PeriodicalIF":3.5,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145037038","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":"Strategic bandgap tuning of WO3 nanoparticles for superior visible-light-driven photocatalytic degradation for water purification: an effect of Y3+doping","authors":"V. Gokila,&nbsp;S. Ayyappan,&nbsp;P. Muthukrishnan,&nbsp;T. Brindha,&nbsp;Jovitha Jane David","doi":"10.1007/s11164-025-05675-5","DOIUrl":"10.1007/s11164-025-05675-5","url":null,"abstract":"<div><p>Dye pollutants released from various industrial processes into wastewater are a significant environmental concern due to their chemical stability, toxicity, and resistance to conventional treatment methods. Advanced photocatalytic techniques have emerged as effective solutions for degrading these persistent organic compounds. While semiconductor-based photocatalysis is a highly promising method, the efficiency of most photocatalyst is hindered by their poor absorption of visible-light and fast charge recombination. To overcome these challenges, yttrium (Y³⁺)-doped WO₃ nanoparticles were synthesized using a chemical co-precipitation method and thoroughly characterized to assess their structural, morphological, elemental, and optical properties. Various analytical techniques, including X-ray diffraction (XRD), Raman spectroscopy, field emission scanning electron microscopy (FESEM), energy-dispersive X-ray spectroscopy (EDS), and UV–Vis spectroscopy, were employed for detailed analysis. The XRD spectra confirm the formation of monoclinic WO₃ (m-WO₃) nanoparticles with high phase purity, as evidenced by the absence of any secondary phases or impurity peaks. Photoluminescence (PL) analysis showed that Y doping enhanced the separation of photo-induced charge carriers, improving the photocatalytic performance. The Y-doped WO₃ nanoparticles demonstrated exceptional photocatalytic efficiency, effectively degrading the organic dye malachite green (MG) under visible-light irradiation. Specifically, the 6% Y-doped WO₃ nanoparticles exhibited a 90% removal of MG under visible-light irradiation with a rate constant of 0.01361 min⁻¹. Additionally, the catalyst displayed remarkable stability and reusability, maintaining its performance over five cycles. These results highlight the significant potential of Y-doped WO₃ nanoparticles as effective photocatalysts for environmental remediation and energy conversion applications, offering a promising solution for water purification and pollutant removal.</p></div>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":"51 9","pages":"5245 - 5267"},"PeriodicalIF":3.5,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144918556","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":"Design and characterization of micro–mesoporous NaP2 zeolite@CdTe nanocomposites for enhanced solar cell efficiency","authors":"Mojgan Zendehdel,&nbsp;Maziar Marandi,&nbsp;Hadis Ghaedrahmat,&nbsp;Masoumeh Babaei Beyranvand,&nbsp;Sepideh Hossein Abadi","doi":"10.1007/s11164-025-05661-x","DOIUrl":"10.1007/s11164-025-05661-x","url":null,"abstract":"<div><p>In this study, varying amounts of cadmium telluride (CdTe) quantum dots (0.12, 0.24, 0.48, and 0.96 g) were incorporated into a zeolite gel solution under hydrothermal conditions to synthesize NaP2 zeolite@CdTe nanocomposites. The resulting materials were characterized using FTIR, XRD, TGA, NH₃-TPD, PL, EDX-SEM, BET, DRS, and fluorescence optical microscopy. FTIR spectra and XRD patterns confirmed the crystalline structure of the zeolite, while BET analysis demonstrated the formation of a micro-mesoporous structure. SEM images indicated morphological changes in the zeolite, attributed to CdTe incorporation into its pores. DRS analysis revealed high light scattering properties, and the calculated bandgap of the nanocomposite (1.7 eV) showed a reduction compared to CdTe alone (2.06 eV). The absence of a peak at 580 nm in PL analysis confirmed the successful encapsulation of CdTe within the zeolite pores. NH₃-TPD analysis indicated a decrease in the number of acidic sites in the nanocomposite. The photovoltaic performance of these nanocomposites was evaluated in solar cells. The NaP2 zeolite@CdTe nanocomposite (0.48 g) achieved a fill factor of 0.5 and an efficiency of 2.5%, representing a 25% improvement over the reference cell (2.0%) and a 19% increase compared to other CdTe quantum dot-sensitized solar cells (2.1%).</p></div>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":"51 9","pages":"5287 - 5309"},"PeriodicalIF":3.5,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144918552","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}