Research on Chemical Intermediates最新文献

{"title":"Effect of the heterocyclic ring-fusion on the photochemical reactivity of 1,4-dihydropyridines, polyhydroquinolines, and decahydroacridine-1,8-diones","authors":"Fatemeh S. Hosseininasab,&nbsp;Hamid R. Memarian,&nbsp;Mehrnoosh Asgari","doi":"10.1007/s11164-025-05558-9","DOIUrl":"10.1007/s11164-025-05558-9","url":null,"abstract":"<div><p>Photo-oxidation of a series of 1,4-dihydropyridine, polyhydroquinoline, and decahydroacridine-1,8-dione derivatives was investigated by exposing them to the UV light to elucidate the electronic and steric effects of the C_4/9-aryl substitutions and the extent of the ring-fusion on the completion irradiation times. Based on the proposed photoreaction mechanism, the steric and electronic effects of the C_4/9-aryl substitution affect the rate of reaction, while the increased ring-fusion, enhances the rigidity of the heterocyclic ring core, significantly facilitates the photoreaction rate. Among these three series of compounds, decahydroacridine-1,8-diones, and 1,4-dihydropyridines have respectively the largest and lowest rate of the photo-oxidation. The geometry of the considered heterocyclic compounds and their corresponding photo-oxidation intermediates was optimized using the time-dependent density functional theory, and DFT B3LYP method with 6-311++G(d,p) basis set. The results of the computational study explained that the deviations of the N₁- and C₄-atoms of the dihydropyridine ring core from the ring boat plane can affect the rate of the photoreaction of these three series of compounds. These deviations are dependent on the preferred orientation of the CO group towards the heterocyclic ring, the rigidity of the molecule, the type and position, and the electronic nature of the additional substituent on the C_4/9-aryl ring.</p></div>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":"51 5","pages":"2705 - 2754"},"PeriodicalIF":2.8,"publicationDate":"2025-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143840314","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":"Green synthesis of heteroatom-doped carbon quantum dots derived from Chenopodium Album for sustainable nanofertilization","authors":"Vishal Kansay,&nbsp;Varun Dutt Sharma,&nbsp;Gourav Chandan,&nbsp;Indu Sharma,&nbsp;Sasanka Chakrabarti,&nbsp;Milan Kumar Bera","doi":"10.1007/s11164-025-05552-1","DOIUrl":"10.1007/s11164-025-05552-1","url":null,"abstract":"<div><p>Nano-enabled sustainable agriculture is gaining traction, with carbon-based nanoparticles emerging as promising alternatives. This study highlights the successful green synthesis of heteroatom-doped carbon quantum dots (h-CQDs) enriched with multiple elements (N, Na, Mg, P, K, Ca). This study successfully synthesizes h-CQDs containing nitrogen, sodium, magnesium, phosphorus, potassium, and calcium from <i>Chenopodium album</i> (Bathua) leaf extract, without external doping precursors. Characterization through HRTEM, EDS, XRD, FTIR, UV–vis, and fluorescence spectroscopy confirmed that the CQDs exhibit a near-spherical morphology (3–5 nm, average 3.75 nm) with a predominantly amorphous structure. They demonstrate strong photostability, greenish fluorescence under UV light, and the presence of hydrophilic surface groups, which enhance their water suspension capabilities. As a nanofertilizer, h-CQDs were tested on mung bean (<i>Vigna radiata</i>) at concentrations of 0.2–10 mg/mL (200–10,000 ppm). While 0.2 mg/mL optimized plant growth, higher concentrations inhibited shoot elongation, reducing growth by 15% at 200 ppm, 21% at 1000 ppm, 63% at 5000 ppm, and 74% at 10,000 ppm. This study explored CQD application in agriculture beyond the commonly reported 100 ppm threshold. Overall, <i>C. album</i>-derived h-CQDs emerge as a promising, eco-friendly nanofertilizer that enhances plant growth while supporting sustainable agriculture.</p></div>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":"51 5","pages":"2605 - 2620"},"PeriodicalIF":2.8,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143840301","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":"Introduction of a novel Brønsted acidic ionic liquid as a recyclable catalyst in the green production of dihydropyrano-pyrazoles","authors":"Yuping Yang,&nbsp;Irfan Ahmad,&nbsp;Dharmesh Sur,&nbsp;G. Padmapriya,&nbsp;Aditya Kashyap,&nbsp;Kattela Chennakesavulu,&nbsp;Juraev Shokhruh,&nbsp;Adizov Bobirjon,&nbsp;Ali Yousif Ibraheem,&nbsp;Zahraa Falah Khudair","doi":"10.1007/s11164-025-05545-0","DOIUrl":"10.1007/s11164-025-05545-0","url":null,"abstract":"<div><p>In this work, a novel, comprehensive, and eco-friendly protocol for the production of biologically active dihydropyrano-pyrazole derivatives in aqueous medium at room temperature using 1,3,5-trimethyl-2,4,6-tris(4-pyridinium sulfonic acid)benzene tri-chloride (TMTPSBTC) as a capable, recyclable, and homogeneous Brønsted acidic ionic liquid catalyst is described. The results from carbon, hydrogen and nitrogen elemental analysis, mass spectrometry, thermal analysis, nuclear magnetic resonance, and Fourier transform infrared techniques characterized the TMTPSBTC skeleton. The high yields of products in reasonable times during a one-pot multicomponent domino operation (<b>1a-16a</b>, 85–98%, 5–20 min), the introduction of novel products to the literature (<b>5a</b> and <b>16a</b>), the non-metallic nature of the catalysis, the simple preparation of the catalyst, and its reusability (four runs) without significant loss of activity are attractive benefits of the present methodology.</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 5","pages":"2227 - 2241"},"PeriodicalIF":2.8,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143840518","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":"Exploring the potentials of delafossite-coated cotton textiles: photocatalytic self-cleaning, UV-blocking, antimicrobial activity, and hydrophobicity","authors":"Shahria Ahmed,&nbsp;Sachin Chopra,&nbsp;Swati Mohan,&nbsp;Ahmed Touhami,&nbsp;Md. Wasikur Rahman,&nbsp;M. Jasim Uddin","doi":"10.1007/s11164-025-05554-z","DOIUrl":"10.1007/s11164-025-05554-z","url":null,"abstract":"<div><p>Delafossite materials demonstrate multifunctional applications due to their excellent catalytic properties, which vary depending on their morphology, particle size, and synthetic method. Herein, a few novel applications of the delafossites are reported, which can be implemented in commercial, medical, and domestic settings. In the present work, we are presenting two different delafossites, CuGaO₂ and CuFeO₂ nanoparticles, and their composite with cotton fiber. Multifunctional cotton fabric is prepared by depositing a uniform coating layer of CuGaO₂ and CuFeO₂ and exhibits excellent photocatalytic self-cleaning, UV blocking, antimicrobial activity, and hydrophobicity. CuGaO₂ and CuFeO₂ nanoparticle concentrations of 1 mM and 2 mM were deposited over the cotton fabric using citric acid as a binder by a simple sonication method. Surface analysis, bindings, stability, stain resistance, and UV blocking characteristics of the functionalized cotton fabric are performed by SEM, EDX, XRD, FTIR, and UV–Vis spectroscopy. Both CuGaO₂-cotton and CuFeO₂-cotton exhibit excellent photocatalytic activity, which is evident from the UV–Vis spectroscopic analysis after mixing with methylene blue dye and subsequent exposure to simulated solar light. In addition, CuGaO₂-cotton and CuFeO₂-cotton block most of the harmful UV radiation, 95–97.5% (approx.) in the case of CuGaO₂ and 90% (approx.) in the case of CuFeO₂. The modified cotton fabrics present good antimicrobial activity against gram-positive and gram-negative bacteria, which is confirmed by antimicrobial tests with Staphylococcus aureus and E. coli bacteria. The newly fabricated cotton-delafossite composite, with all its promising applications, can be viewed as a valuable, sustainable contribution of materials science to humanity.</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 5","pages":"2531 - 2551"},"PeriodicalIF":2.8,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143840299","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":"ZnFe2O4@SiO2@n-pr@xanthine-Pr: as a highly versatile catalyst for the preparation of 1H-tetrazoles and sulfoxidation reaction","authors":"Hamid Aghavandi,&nbsp;Arash Ghorbani-Choghamarani,&nbsp;Amir Ghanbarpour","doi":"10.1007/s11164-025-05553-0","DOIUrl":"10.1007/s11164-025-05553-0","url":null,"abstract":"<div><p>Herein, a novel ZnFe₂O₄@SiO₂@n-pr@xanthine-Pr nanoparticle was successfully synthesized as a green catalyst, which contains the xanthine-Pr catalytic moiety on the surface of silica-coated zinc ferrite as the catalyst support. Then, ZnFe₂O₄@SiO₂@n-pr@xanthine-Pr were characterized by some physicochemical techniques such as Fourier-transformed infrared spectroscopy, X-ray powder diffraction, inductively coupled plasma, energy-dispersive X-ray spectroscopy, scanning electron microscopy (SEM), thermogravimetric analysis, and vibrating sample magnetometry (VSM). SEM patterns of ZnFe₂O₄@SiO₂@n-pr@xanthine-Pr show that the particle’s size is in nanometer dimensions. The preparation of 1H-tetrazole derivatives and oxidation of sulfides were efficiently performed through the catalytic performance of ZnFe₂O₄@SiO₂@n-pr@xanthine-Pr. The VSM analysis of the catalyst exhibits that it is recoverable by an external magnet; therefore, it can be reused several continuous times with negligible loss of catalytic properties or praseodymium leaching. Also, the catalytic reactions proceed in high turnover number and turnover frequency numbers, which proves high activity and selectivity in all catalytic experiments. The chemical and thermal stability as well as the heterogeneous nature of the catalyst was confirmed by a hot filtration experiment.</p></div>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":"51 5","pages":"2331 - 2355"},"PeriodicalIF":2.8,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143840438","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":"Sustainable synthesis of 2,3-Dihydroquinazolin-4(1H)-ones using Ni-Fe2O3@SiO2-Pr-DMAP novel nanocatalyst: a profiling approach by DFT","authors":"Lalit Dhananjay Bhosale,&nbsp;Akshay Pandurang Gurav,&nbsp;Pradeep Jangonda Patil,&nbsp;Dilip Hanumant Dagade,&nbsp;Sandeep Ashok Sankpal,&nbsp;Shankar Poshatti Hangirgekar","doi":"10.1007/s11164-025-05544-1","DOIUrl":"10.1007/s11164-025-05544-1","url":null,"abstract":"<div><p>Synthesis and characterization of ionic liquid anchored magnetically separable novel heterogeneous Nanocatalyst Ni-Fe₂O₃@SiO₂-Pr-DMAP and its use in the synthesis of 2,3-dihydroquinazolin-4(1H)-one derivative. The nanocatalyst was thoroughly characterised by XRD, SEM, TEM, EDX, FTIR, and VSM, confirming its nanoscale morphology, magnetic properties, and chemical composition. This polycrystalline nanocatalyst demonstrated excellent catalytic activity under mild conditions, achieving high yields of various substituted derivatives (4a, 4e, and 4 g) through a three-component condensation reaction. 1H-NMR, 13C-NMR, and Mass spectroscopy confirmed the formation of catalytic products, and the proposed mechanism was investigated. A comparative analysis with existing catalysts revealed the superior efficiency, shorter reaction times, magnetically separable, excellent reusability, and reduced environmental impact of Ni-Fe₂O₃@SiO₂-Pr-DMAP due to modification in catalyst and the elimination of harmful solvents. Additionally, the catalyst was proven recyclable, making it a cost-effective and environmentally friendly option. This study introduces a facile, eco-friendly process for synthesizing 2,3-dihydroquinazolin-4(1<i>H</i>)-one derivatives, contributing to advancing green chemistry, non-chromatographic purification method, and sustainable catalytic processes.</p></div>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":"51 4","pages":"1827 - 1861"},"PeriodicalIF":2.8,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143676241","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 comparative analysis of the interactions between the anionic sunset yellow dye with cationic, nonionic, and anionic surfactants","authors":"Bharathi Balasubramaniyan,&nbsp;Sukanta Kumar Pradhan,&nbsp;Puspalata Rajesh,&nbsp;Sasmita Dash","doi":"10.1007/s11164-025-05535-2","DOIUrl":"10.1007/s11164-025-05535-2","url":null,"abstract":"<div><p>This work reports the comparative interaction of food dye sunset yellow (SY) with ionic, and nonionic surfactant mediums. Three different surfactants were utilized: the nonionic Pluronic. F-127 (F-127), the cationic Cetyl Pyridinium Bromide (CPB), and the anionic Ammonium Dodecyl Sulfate (ADS). The interactions were studied with the use of several methods, such as UV–visible spectroscopy, FTIR analysis, evaluating the zeta potential, dynamic light scattering (DLS), conductivity, fluorescence, and NMR spectroscopy. The binding constant values determined from UV-spectroscopic studies were 0.22 mM⁻¹, 2.93 mM⁻¹, and 0.02 mM⁻¹ for SY-ADS, SY-CPB, and SY-F-127 systems, respectively. From the zeta-potential values, it is also inferred that the SY-CPB system is more stable than SY-ADS and SY-F-127 dye-surfactant combinations. In comparison to ADS and F-127 surfactant systems, the conductivity, fluorescence, and 1H/13C NMR experiments also showed that SY had a stronger interaction with CPB, a higher sensitivity, and a better affinity. The in silico docking study exhibited more interactive sites in the SY-CPB combination than the other two, corroborating the experimental findings. The DLS studies displayed size enhancement in the presence of ionic surfactants and shrinking of size in the nonionic combination. The results revealed that the cationic surfactant medium of CPB are promising formulations for the food industry’s application of SY dye. To the best of our knowledge, this study is the first to report the interaction of SY with three distinct surfactant classes.</p></div>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":"51 4","pages":"2197 - 2222"},"PeriodicalIF":2.8,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143676196","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":"Efficient elimination of tetracycline hydrochloride by polydopamine-decorated CoFeS2 activated peroxymonosulfate","authors":"Hongyan Gou,&nbsp;Dedong Sun,&nbsp;Hongchao Ma,&nbsp;Xinxin Zhang,&nbsp;Guowen Wang,&nbsp;Jun Hao","doi":"10.1007/s11164-025-05546-z","DOIUrl":"10.1007/s11164-025-05546-z","url":null,"abstract":"<div><p>In this study, polydopamine-decorated CoFeS₂ (PDA@CoFeS₂) was successfully synthesized for activating peroxymonosulfate (PMS) to remove tetracycline hydrochloride (TCH). SEM, EDS, XRD, FT-IR, XPS and EPR were employed to characterize the PDA@CoFeS₂ composite. The PDA@CoFeS₂ composite displayed XRD diffraction peaks similar to CoFeS₂, but with reduced peak intensity. SEM results indicated that CoFeS₂ particles were adhered and wrapped by PDA. The XPS analysis suggested that Co²⁺ and Fe²⁺ on the catalyst surface reacted with PMS to generate reactive oxygen species, and itself was oxidized to Co³⁺ and Fe³⁺. Meanwhile, the low-valence sulfur (S²⁻, S₂²⁻ and S_n²⁻) could achieve the redox cycles of Co³⁺/Co²⁺ and Fe³⁺/Fe²⁺. The influence factors including catalyst dose, PMS concentration, initial pH, initial TCH concentration and reaction temperature on the elimination of TCH in the PDA@CoFeS₂/PMS system were systematically investigated. The results showed that PDA@CoFeS₂ had better catalytic performance compared with CoFeS₂, and the degradation effectiveness of TCH (15 mg/l) was 96.0% and the elimination efficiency of total organic carbon (TOC) was 49.6% in 90 min under the optimal conditions ([PDA@CoFeS₂]₀ = 45 mg/L, [PMS]₀ = 1.0 mM and pH = 5.3). Electron paramagnetic resonance (EPR) analyses and reactive oxygen species (ROSs) capture experiments confirmed that ROSs such as SO₄^·−, ^·OH, ¹O₂, and O₂^·− participated in the degradation of TCH. The high catalytic performance of PDA@CoFeS₂ is closely related to two aspects: one is the collaborative effect of Co³⁺/Co²⁺ and Fe³⁺/Fe²⁺ cycles in the activation of PMS, and the other is that sulfur species and PDA promote the cycling of Co³⁺/Co²⁺ and Fe³⁺/Fe²⁺. In summary, PDA@CoFeS₂ composite is a promising heterogeneous catalyst for water pollution treatment.</p></div>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":"51 5","pages":"2491 - 2511"},"PeriodicalIF":2.8,"publicationDate":"2025-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143840444","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":"Structural influence of new fabricated CoII and CuII-diol Schiff-base complexes on catalytic epoxidizing reactions and biological efficacy","authors":"Mohamed Shaker S. Adam,&nbsp;Ibrahim Alfurayj,&nbsp;Mohammed A. Alkhalifah,&nbsp;Faisal Al-Odail,&nbsp;Ahmed M. Abuelela,&nbsp;Ahmed Khalil","doi":"10.1007/s11164-025-05550-3","DOIUrl":"10.1007/s11164-025-05550-3","url":null,"abstract":"<div><p>The facile preparing procedure for diol Schiff-bases motivated us to construct a new derivative (2-(((5-nitrobenzo[<i>d</i>]thiazol-2-yl)imino)methyl)benzene-1,4-diol, HLdil) elucidating its complexing action toward divalent Co^II and Cu^II ions. Two new complexes were obtained of different structural features (Co(Ldil)₂ and CuLdilCl), respectively, in which their structure was confirmed by alternated spectral tools. The distinguished effect of the metal ion type and the structural features of the two complexes was examined in the catalytic and biological fields. For the catalytic purpose, at 353 K, an interesting catalytic action of Co(Ldil)₂ and CuLdilCl was explored in the selective epoxidation and esterification with acetic acid of 1,2-cyclooctene (CyO) (as representative example of olefins) within hydrogen peroxide (H₂O₂). The yielding percentages of the selective epoxide product were 87 and 89% after 5 and 4 h with the catalysts Co(Ldil)₂ and CuLdilCl, respectively. A tentative mechanistic pathway was represented regarding the influence of M^II-ions type and its complex geometrical structure. The esterification progress was accomplished with and without H₂O₂ to give two main different products catalyzed by CuLdilCl. For the biological purpose, assigning the inhibitive potential versus the proliferative rate of six different types of microorganisms, and three human cancer cell lines, the bioreactivity of HLdil, Co(Ldil)₂, and CuLdilCl was reported. Also, the viscometric/spectroscopic characteristic changes for the solutions of HLdil, Co(Ldil)₂, and CuLdilCl with calf thymus DNA solution (DNA) aimed to distinguish the mode of interaction. The evaluated microbial inhibitive zone areas in mm and (<i>IC</i>₅₀) half-effective concentrations versus the cancer growing up in mM were applied to elucidate their biological potential. With binding constants, chromism mode, and Gibb’s free energy, the interactive nature for HLdil, Co(Ldil)₂, and CuLdilCl with DNA was evaluated.</p></div>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":"51 5","pages":"2243 - 2285"},"PeriodicalIF":2.8,"publicationDate":"2025-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143840448","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 reduction of CO2 Ag-BiVO4 composites modified with lignin carbon quantum dots","authors":"Yilin Wu,&nbsp;Yiping Li,&nbsp;Kai Zhang,&nbsp;Jinhai Hu,&nbsp;Hong Yan","doi":"10.1007/s11164-025-05549-w","DOIUrl":"10.1007/s11164-025-05549-w","url":null,"abstract":"<div><p>Photocatalytic CO₂ reduction technology can use sunlight to convert CO₂ into fuel or chemical raw materials, slowdown the greenhouse effect and achieve sustainable development. Therefore, we have developed a series of high-quality carbon quantum dots using alkaline lignin (AL) as the core raw material and using high efficiency hydrothermal method. Ag-BiVO₄ composite was prepared by hydrothermal method. Then, the Ag-BiVO₄-CQDs photocatalytic composite was prepared by constant temperature water bath method. The structure and morphology of the composites were characterized by X-ray diffraction, transmission electron microscope and X-ray photoelectron spectroscopy. Through optical and electrochemical tests, it can be seen that the composite has better interfacial charge transfer and electron transport ability. In the visible light catalytic CO₂ reduction reaction, Ag-BiVO₄ can selectively reduce CO₂ to CH₄, and the CH₄ yield is greatly improved after Ag-BiVO₄ combines with CQDs. The 3 h CH₄ yield increased from 17.64 μmol/g to 97.82 μmol/g after reduction by adding 40 mL CQDs to Ag-BiVO₄ composite, which is 5.54 times that of Ag-BiVO₄. The results showed that the introduced CQDs were uniformly attached to Ag-BiVO₄. As an electron transport medium, CQDs can efficiently facilitate the transfer of photogenerated carriers, suppress the recombination of electron–hole pairs, and enhance the photocatalytic performance of Ag-BiVO₄-CQDs for CO₂ reduction.</p></div>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":"51 4","pages":"2071 - 2088"},"PeriodicalIF":2.8,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143676379","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}