{"title":"An unique microwave-assisted approach for synthesis of nanosized Fe3O4 as a catalyst in transfer hydrogenation of furfural","authors":"Akash Bhatkar, Akash Yadav, Bhavika Gehlot, Rutik Rathod, Samruddhi Mane, Vaishnavi Gawande, Hrtivik Bhosale, Thirumalaiswamy Raja, Kushal D. Bhatte","doi":"10.1007/s11164-025-05734-x","DOIUrl":"10.1007/s11164-025-05734-x","url":null,"abstract":"<div><p>In this manuscript, we report an unique, one pot, one step synthesis of Fe<sub>3</sub>O<sub>4</sub> nanoparticles. The protocol for synthesis of nanosized Fe<sub>3</sub>O<sub>4</sub> was developed using only Benzyl Amine and Fe(II)acetate precursor via microwave route. Microwave route enables the synthesis of Fe<sub>3</sub>O<sub>4</sub> nanoparticles in short duration and eliminates the need of several chemicals. These salient features make the entire synthetic process environment benign as per green chemistry principles. The morphology and other properties of synthesized nanoparticles were studied by using X-ray diffraction (XRD), X-ray photoelectron spectroscopy analysis (XPS), Raman spectroscopy, Field Emission Scanning Electron Microscopy (FE-SEM), and High-Resolution-Transmission Electron Microscopy (HR-TEM). As-synthesized Fe<sub>3</sub>O<sub>4</sub> nanoparticles exhibit efficient catalytic transfer hydrogenation of furfural using isopropanol as the solvent and hydrogen source, and provide furfuryl alcohol in good yield. This nanosized Fe<sub>3</sub>O<sub>4</sub> was easily removable using magnet and exhibits good reusability. It is observed that acidic-basic sites of nanosized Fe<sub>3</sub>O<sub>4</sub> play a vital role in catalytic transfer hydrogenation reaction.</p></div>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":"51 11","pages":"6257 - 6274"},"PeriodicalIF":3.5,"publicationDate":"2025-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145296383","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":"Hierarchical CC/PANI/Fe(EDTA)x architectures: stable visible-light photocatalysts with synergistic carrier enhancement for sustainable Cr(VI) reduction","authors":"Fenghua Chen, Xianghai Rao, Qingtao Chen, Xiaoyun Qin, Jiong Li, Zhiheng Li, Binyan Zou, Xiangdong Shi","doi":"10.1007/s11164-025-05751-w","DOIUrl":"10.1007/s11164-025-05751-w","url":null,"abstract":"<div><p>Solar photocatalysis offers a sustainable solution for chromium-laden wastewater remediation. Herein, we constructed a hierarchical CC/PANI/Fe(EDTA)<sub>x</sub> photocatalyst through in situ growth of one-dimensional PANI nanoarrays doped with Fe(EDTA)<sub>x</sub> on activated carbon cloth (CC) for the enhanced photocatalytic reduction of Cr(VI) based on the synergistic PANI/Fe(EDTA)<sub>x</sub> interactions. The experimental results indicated that the doping of Fe(EDTA)<sub>x</sub> onto the surface of CC/PANI facilitated directional charge migration and reduced the recombination efficiency of photogenerated carriers. In addition, EDTA and FeSO<sub>4</sub> concentrations significantly influenced activity, where optimal coordination minimized Fe leaching and maximized electron transfer. The optimized CC/PANI/Fe(EDTA)<sub>x</sub> sample (CPFeE-5) achieved exceptional photocatalytic performance with 98.65% Cr(VI) removal within 80 min of visible light exposure. It was also suggested that lower pH (pH = 2) favored Cr(VI) reduction, yielding a rate constant 12.08 times and 21.15 times higher than at pH = 4 and pH = 6, respectively. Moreover, stability tests revealed an efficiency retention of 81.20% after five cycles, with straightforward separation achieved and structural integrity maintained, as evidenced by XRD and SEM analysis. All of these findings revealed that a stable supported photocatalyst platform through synergistic carrier engineering was established in this work, demonstrating practical potential for solar-driven wastewater detoxification.</p></div>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":"51 11","pages":"6533 - 6555"},"PeriodicalIF":3.5,"publicationDate":"2025-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145296377","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":"Development of Ni/HTA/Hβ alkane isomerization catalyst with improved selectivity for multi-branched isoalkanes","authors":"Lijun Zhu, Guosheng Huang, Shuo Liu, Xiaohui Jing, Junwei Yang, Daohong Xia","doi":"10.1007/s11164-025-05742-x","DOIUrl":"10.1007/s11164-025-05742-x","url":null,"abstract":"<div><p>Isoalkanes are ideal gasoline components, and the isomerization reaction of light alkanes is the most effective way to increase the octane number of gasoline. Non-precious metal/zeolite catalysts are the mainstream bifunctional catalysts for alkane isomerization reactions, but there are still challenges in achieving high octane number components—multi-branched isoalkanes in isomerization reactions. In this article, Ni–heteropoly acid/zeolite alkane isomerization catalyst (Ni–HTA/Hβ) was prepared by impregnation method. Under optimized conditions, the conversion rate of <i>n</i>-hexane was 79.5%, the yield of isoalkanes was 78.7%, and the selectivity of isoalkanes was as high as 99.0%. In the product distribution, the Ni–HTA/Hβ catalyst can obtain more multi-branched isoalkanes, namely, 2,2-dimethylbutane and 2,3-dimethylbutane, with a total content of up to 19.2%, achieving the goal of further improving the yield of double-branched alkanes in C<sub>6</sub> alkane isomerization products.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":"51 11","pages":"6133 - 6154"},"PeriodicalIF":3.5,"publicationDate":"2025-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145296376","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":"Amorphous aluminum oxide clusters regulating oxygen reduction for photocatalytic H2O2 production over carbon nitride","authors":"Hiba Elmansour, Donghui Wang, Jin-Gang-Lu Tao, Feng Chen","doi":"10.1007/s11164-025-05750-x","DOIUrl":"10.1007/s11164-025-05750-x","url":null,"abstract":"<div><p>The rational design of catalysts for photocatalytic H<sub>2</sub>O<sub>2</sub> production remains a major challenge, as most photocatalysts for H<sub>2</sub>O<sub>2</sub> production also tend to decompose H<sub>2</sub>O<sub>2</sub>. Here, density functional theory (DFT) calculations reveal that amorphous Al<sub>2</sub>O<sub>3</sub> clusters anchored on crystalline carbon nitride (CCN) provide efficient oxygen adsorption sites, facilitate electron transfer, and stabilize key *OOH intermediates. Guided by these insights, CCN composites loaded with Al<sub>2</sub>O<sub>3</sub> clusters (CCN-Al-x) were synthesized. Experimental studies confirm that the introduction of Al<sub>2</sub>O<sub>3</sub> clusters enhances charge separation, suppresses H<sub>2</sub>O<sub>2</sub> decomposition and improves the selectivity of the 2e<sup>−</sup> oxygen reduction reaction (ORR). The optimized CCN-Al-2 achieves an H<sub>2</sub>O<sub>2</sub> production rate of 50.2 mmol g<sup>−1</sup> h<sup>−1</sup>, with an apparent quantum yield (AQY) of 21.6% under 420 nm irradiation. This work highlights the critical impact of Al<sub>2</sub>O<sub>3</sub> clusters modification on CCN, providing new opportunities for efficient and selective photocatalytic H<sub>2</sub>O<sub>2</sub> production.</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 11","pages":"6515 - 6531"},"PeriodicalIF":3.5,"publicationDate":"2025-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145296775","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":"CuWO4–ZnO heterojunction for the enhancement of photocatalytic clofibric acid degradation and hydrogen production","authors":"Swarna Lakshmi Rajendran, Viswanathan Alagan","doi":"10.1007/s11164-025-05748-5","DOIUrl":"10.1007/s11164-025-05748-5","url":null,"abstract":"<div><p>Photocatalytic technology designed to generate green hydrogen and remove organic contaminants from water had been advancing swiftly. This study effectively employed hydrothermal method to create CuWO<sub>4</sub> (CWO)–ZnO heterojunction with different weight ratios namely, CWO, ZnO, 5 wt.% CWO–ZnO, 10 wt.% CWO–ZnO, and 15 wt.% CWO–ZnO. The crystalline structure was determined to be hexagonal for ZnO and anorthic for CWO. Morphology was found to be agglomeration of diminutive CWO particles over ZnO. Elemental composition was confirmed by XPS and EDAX analysis. Optical properties were analyzed by UV–Visible spectroscopy and photoluminescence studies. Photocatalytic clofibric acid (CA) degradation and hydrogen production were studied for the obtained samples. Among the samples, 10 wt.% CWO–ZnO exhibited the highest photodegradation efficiency of 96.41% under 180 min illumination with reaction rate constant(k) of 15.22 × 10<sup>–3</sup> min<sup>−1</sup> (exceeding ZnO by 3.26 and CuWO<sub>4</sub> by 2.65) and hydrogen generation of 1342 µmol yield for 5 h (exceeding ZnO by 4.32 and CuWO<sub>4</sub> by 3.81). The best-performing 10 wt.% CWO–ZnO demonstrated exceptional reusability over eight successive photocatalytic assessments. Scavenging experiments revealed the active radicals namely, hydroxyl radicals and holes. The photoreaction mechanism responsible for significant enhancement of efficiency is elucidated.</p></div>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":"51 11","pages":"6417 - 6435"},"PeriodicalIF":3.5,"publicationDate":"2025-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145296776","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}
Monika Okram, Ruchi Bharti, Renu Sharma, Monika Verma, Ravi Bansal
{"title":"Microwave-assisted Cr2O3 nanoparticle-catalyzed synthesis of 2-amino-4H-chromenes: evaluation of antioxidant, corrosion inhibition, and molecular docking studies","authors":"Monika Okram, Ruchi Bharti, Renu Sharma, Monika Verma, Ravi Bansal","doi":"10.1007/s11164-025-05731-0","DOIUrl":"10.1007/s11164-025-05731-0","url":null,"abstract":"<div><p>In this study, chromium(III) oxide (Cr<sub>2</sub>O<sub>3</sub>) nanoparticles were prepared through a green synthesis route using <i>Hamelia patens</i> leaf extract. The naturally occurring phytochemicals in the extract acted both as reducing agents to convert the chromium precursor and as stabilizing agents to prevent agglomeration. The nanoparticles were examined using UV–Vis spectroscopy, FTIR, XRD, SEM–EDX, DLS, and zeta potential analysis. These techniques confirmed their crystalline nature on the nanoscale, spherical particle morphology, the presence of surface-bound biomolecules, and stable colloidal dispersion. The biosynthesized nanoparticles were then employed as catalysts in a one-pot multicomponent reaction to obtain 2-amino-4<i>H</i>-chromene derivatives. Reaction optimization showed that the catalyst produced consistently high yields under mild reaction conditions, surpassing the performance of conventional organocatalysts. The antioxidant properties of the chromene derivatives (5a–5e) were assessed by the DPPH assay in methanol, ethyl acetate, and acetone, revealing notable solvent-dependent variations in radical scavenging activity. Among the tested compounds, 5b, derived from 9-anthracenecarboxaldehyde, displayed more than 95% radical scavenging activity in acetone. In addition, electrochemical impedance spectroscopy (EIS) was used to study the corrosion-inhibition behaviour of the most active chromenes on mild steel in acidic medium. Compound 5a achieved the highest inhibition efficiency of 85.46% at a concentration of 200 ppm, as confirmed by Nyquist, Bode, and Tafel analyses.</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 11","pages":"6049 - 6086"},"PeriodicalIF":3.5,"publicationDate":"2025-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145296852","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}
Salhah D. Al-Qahtani, Ghadah M. Al-Senani, Yasser A. Attia
{"title":"Green synthesis of zinc oxide/polymeric graphitic carbon nitride nanocomposites: boosting photocatalytic glucose-to-sorbitol conversion","authors":"Salhah D. Al-Qahtani, Ghadah M. Al-Senani, Yasser A. Attia","doi":"10.1007/s11164-025-05752-9","DOIUrl":"10.1007/s11164-025-05752-9","url":null,"abstract":"<div><p>Nanotechnology is increasingly focused on developing non-toxic, sustainable photocatalysts sensitive to visible light. This study presents a simple, low-temperature biosynthesis method utilizing leaf extract from the <i>Avicennia marina</i> mangrove to produce zinc oxide/graphitic carbon nitride nanocomposites (ZnO/g-C₃N₄ NCs). These photocatalysts effectively convert glucose from corn starch after enzymatic hydrolysis into sorbitol and generate hydrogen under visible light. Comprehensive analyses of the optical, morphological, and structural properties of the synthesized nanocomposites were conducted. Photocatalytic testing under UV–Vis irradiation revealed a significant enhancement in hydrogen production and sorbitol yield (93%) compared to individual components. Additionally, the photocatalytic performance for degrading Acid Red 27 dye was evaluated. A novel room temperature, atmospheric pressure catalytic hydrogen transfer (CHT) method was developed for converting <span>D</span>-glucose to <span>D</span>-sorbitol using the ZnO/g-C₃N₄ photo-nanocatalyst in aqueous ethanol, eliminating the need for molecular hydrogen. The synergistic interaction between ZnO and g-C₃N₄ facilitates effective charge separation and transfer, enhancing redox processes and overall performance. This study demonstrates that ZnO/g-C₃N₄ NCs are promising photocatalysts for sustainable energy production and biomass conversion, outperforming existing methods and offering a green approach for efficient sorbitol production in mild conditions.</p></div>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":"51 11","pages":"6465 - 6486"},"PeriodicalIF":3.5,"publicationDate":"2025-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145296848","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":"Crushed 3 Å, 4 Å, and 5 Å molecular sieves: a green heterogeneous catalyst for solvent-free aza-Michael additions via microwave, ultrasound, and mechanochemical activation","authors":"Fethi Hacini, Asma Dahoui Kralfa, Aouicha Benmaati, Riad Mustapha Kerbadou, Jean Rodriguez, Thierry Constantieux, Hadjira Habib Zahmani","doi":"10.1007/s11164-025-05743-w","DOIUrl":"10.1007/s11164-025-05743-w","url":null,"abstract":"<div><p>This study highlights the catalytic potential of commercially available molecular sieves (MS 3 Å, 4 Å, and 5 Å) as cost-effective, reusable, and environmentally benign catalysts for C–N bond formation via aza-Michael reactions. Ground zeolite beads were shown to efficiently promote the addition of both primary and secondary amines to various α,β-unsaturated compounds under solvent-free conditions, yielding β-amino carbonyl derivatives with high selectivity and excellent yields. Notably, monoaddition was exclusively observed with primary amines, and the catalyst retained its activity over multiple cycles. The versatility of this catalytic system was further demonstrated through activation methods such as microwave irradiation, ultrasonication, and mechanochemistry, which significantly reduced reaction times and aligned with the principles of green chemistry. Beyond intermolecular transformations, MS 4 Å was successfully applied to intramolecular aza-Michael reactions of functionalized chalcones, enabling the synthesis of 2-aryl-2,3-dihydroquinolin-4(1H)-ones. A novel one-pot domino strategy was also developed, involving imine formation followed by Mannich-type cyclization to access these heterocycles efficiently. The proposed mechanism involves Brønsted acid sites on the zeolite surface, which activate the Michael acceptor for nucleophilic attack. Overall, this work establishes molecular sieves as sustainable alternatives to conventional acid/base catalysts in organic synthesis, offering operational simplicity, reduced environmental impact, and broad applicability in heterocycle construction.</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 11","pages":"6275 - 6295"},"PeriodicalIF":3.5,"publicationDate":"2025-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145296375","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}
Adeleh Jafari Zarandini, Ali Bahari, Hajar Rajaei Litkohi
{"title":"CoCuFe-MoS2/rGO as pioneer electrocatalyst for the oxygen reduction reaction (ORR)","authors":"Adeleh Jafari Zarandini, Ali Bahari, Hajar Rajaei Litkohi","doi":"10.1007/s11164-025-05728-9","DOIUrl":"10.1007/s11164-025-05728-9","url":null,"abstract":"<div><p>This study introduces a novel and innovative approach by designing a trimetallic nanocomposite catalyst for enhancing the ORR. The unique trimetallic structure significantly improves catalytic performance and clearly distinguishes this work from previous studies. Compared to conventional platinum-based and bimetallic catalysts, this trimetallic system offers superior activity, enhanced stability, and better resistance to degradation, making it a promising candidate for high-performance electrocatalytic applications. In this study, MoS<sub>2</sub>/reduced graphene oxide (MoS<sub>2</sub>/rGO) nanosheets are synthesized via a hydrothermal method, followed by the deposition of copper-cobalt-iron (CuCoFe) transition trimetallic hybrids onto the ultrathin MoS<sub>2</sub>/rGO substrate through a straightforward ethylene glycol reduction process. Transmission electron microscopy (TEM) and high-resolution transmission electron microscopy (HRTEM) analysis confirms the uniform distribution and consistent dispersion of CuCoFe nanoparticles on the catalyst support surface. The nanocomposite demonstrates exceptional catalytic performance for the ORR under alkaline conditions, attributed to the synergistic interaction between CuCoFe trimetallic alloys and the MoS<sub>2</sub>/rGO substrate. Key electrochemical metrics include a high current density of 3.64 mA cm<sup>−2</sup>, a half-wave potential of − 0.118 V vs. Ag/AgCl, and an onset potential of − 0.052 V vs. Ag/AgCl. Moreover, the CuCoFeMoS<sub>2</sub>/rGO electrode exhibits remarkable durability (90.03%) and methanol resistance (100%), significantly outperforming the Pt/C benchmark (61.58% and 79.96%, respectively). The analysis of the Koutecky–Levich (K–L) plots indicates a four-electron transfer process. The synergistic effects of rGO’s excellent conductivity and high aspect ratio, alongside MoS<sub>2</sub>’s catalytic properties and the introduction of CuCoFe transition trimetallic hybrids, position CuCoFeMoS<sub>2</sub>/rGO as a promising candidate for high-performance electrocatalytic applications.</p></div>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":"51 11","pages":"6557 - 6576"},"PeriodicalIF":3.5,"publicationDate":"2025-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145296406","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":"Cu(II)-crosslinked carboxymethylcellulose entrapped in-situ generated Cu2O nanoparticles composite beads: a highly efficient catalyst for ipso-iodination of arylboronic acids","authors":"Jiayi Huang, Meiling Xue, Zhihao Shan, Shuyao Zhang, Ting Lin, Yiqun Li","doi":"10.1007/s11164-025-05732-z","DOIUrl":"10.1007/s11164-025-05732-z","url":null,"abstract":"<div><p>In this study, we successfully synthesized Cu<sub>2</sub>O@Cu(II)-CMC composite beads via a one-step process, where Cu(II) ions are crosslinked with sodium carboxymethylcellulose (CMC-Na) through an ion exchange reaction to form composite beads with a three-dimensional (3D) network. Simultaneously, the Cu(II) ions undergo in-situ partial reduction by the hydroxy groups of CMC-Na, generating Cu<sub>2</sub>O nanoparticles (NPs) that are entrapped and uniformly confined within these as-formed beads. The composite beads were systematically characterized using X-ray diffraction (XRD), Fourier transform infraredspectroscopy (FT-IR), Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), Auger electron spectroscopy (AES), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), elemental mapping, transmission electron microscopy (TEM), thermogravimetric analysis (TGA), differential thermogravimetric analysis (DTG), and inductively coupled plasma atomic emission spectrometry (ICP-AES). For the first time, their catalytic performance was evaluated in the <i>ipso</i>-iodination of arylboronic acids. The results revealed excellent activity under mild conditions, achieving high yields in short reaction times at room temperature while tolerating a broad range of functional groups. The superior catalytic performance can be attributed to: (1) the regulatory effect of carboxylate and hydroxy groups on the metal centers; (2) the 3D porous structure facilitating mass transfer; and (3) the activation of phenylboronic acid via esterification with hydroxy groups of CMC. Additionally, copper-carboxylate chelation minimized leaching of active species, enabling the catalyst to maintain high efficiency up to six consecutive reaction cycles with easy recovery by simple filtration.</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 11","pages":"6087 - 6111"},"PeriodicalIF":3.5,"publicationDate":"2025-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145296404","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}