Daniel Rapachi, Ieda P. Rapachi, Caroline P. Roldão, Cecília A. Silveira, Vanessa B. Mortola, Wladimir H. Flores, Jackson D. Scholten, Marcos A. Gelesky
{"title":"Sustainable Synthesis of Formic Acid from CO2 Hydrogenation Using Pd/ZnO Catalysts Derived from a Modified Zeolitic Imidazolate Framework","authors":"Daniel Rapachi, Ieda P. Rapachi, Caroline P. Roldão, Cecília A. Silveira, Vanessa B. Mortola, Wladimir H. Flores, Jackson D. Scholten, Marcos A. Gelesky","doi":"10.1007/s10876-025-02918-8","DOIUrl":"10.1007/s10876-025-02918-8","url":null,"abstract":"<div><p>CO<sub>2</sub> hydrogenation to formic acid is a promising strategy for CO<sub>2</sub> mitigation, but requires high temperatures, pressure, additives and catalysts. This study reports the synthesis of Pd/ZnO obtained through the calcination of a palladium-modified zeolitic imidazolate framework (ZIF-8), applied in the CO<sub>2</sub> hydrogenation to formate, under mild reaction conditions. The crystal structure, crystallite size, microstrain, and morphological properties were characterized using XRD and TEM. Crystallite size and microstrain were evaluated by Scherrer and Williamson-Hall methods. The Pd/ZnO catalyst exhibited a hexagonal wurtzite ZnO structure and Pd in the face-centered cubic (fcc) phase, with small crystallite size and few imperfections in ZnO. The catalytic activity was evaluated for CO<sub>2</sub> hydrogenation in the aqueous phase, yielding 52.42 µmol of formate. The results suggest that Pd species are responsible for H<sub>2</sub> activation, while ZnO facilitates CO<sub>2</sub> activation. The ZIF-derived Pd/ZnO material demonstrates potential as catalyst for CO<sub>2</sub> conversion, contributing to environmental mitigation and development of carbon-neutral chemical processes.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":618,"journal":{"name":"Journal of Cluster Science","volume":"36 6","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145256294","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Vikram, Abdul Muheem, Shobhit Kumar, Divya Chaudhary, Mohd Waseem, Sanjula Baboota, Javed Ali
{"title":"Co-Delivery of Temozolomide and Quercetin via Nanoemulsion for Glioblastoma Therapy: From In-Silico to In-Vivo Evaluation","authors":"Vikram, Abdul Muheem, Shobhit Kumar, Divya Chaudhary, Mohd Waseem, Sanjula Baboota, Javed Ali","doi":"10.1007/s10876-025-02916-w","DOIUrl":"10.1007/s10876-025-02916-w","url":null,"abstract":"<div><p>Glioblastoma (GBM) is a form of brain tumor, and the line of treatment includes the administration of temozolomide (TMZ). Due to the short life of TMZ, high doses are recommended, which leads to drug-induced adverse reactions. In this study, TMZ and Quercetin (QUE) loaded nanoemulsion was developed using a Quality by Design (QbD) approach for the treatment of GBM. The efficacy of TMZ and QUE was assessed through <i>in silico</i> studies, which revealed a synergistic effect of the drugs. Afterward, cellular assays using U87 MG cell lines demonstrated that the optimal ratio of TMZ to QUE (1:8 μg/mL) yielded a synergistic therapeutic effect. Thus, the ratio of TMZ to QUE was considered to design the formulation. The nanoemulsion was optimized by using a central composite rotatable design (CCRD). The prepared nanoemulsion was characterized by a droplet size of 84.91 ± 2.17 nm with a polydispersity index (PDI) value of 0.20 ± 0.01, zeta potential -7.7 ± 0.34 mV, % transmittance of 94.16 ± 8.05 %, etc. <i>In vitro</i> drug release and <i>ex vivo</i> permeation studies demonstrated that a dual drug-loaded nanoemulsion significantly improved drug permeation compared to the drug suspension. Furthermore, the pharmacokinetic studies also showed significant improvement in drug plasma concentrations for improved therapeutic efficacy. The nanoemulsion-treated groups also showed a significantly lower IC<sub>50</sub> value, indicating greater potency. Hence, the findings suggest that dual drug-loaded nanoemulsion could serve as an effective approach for treating GBM.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":618,"journal":{"name":"Journal of Cluster Science","volume":"36 6","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145256373","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
José de Oliveira Alves Júnior, Adrian Lima Roberto, Adenia Mirela Alves Nunes, João Augusto Oshiro Junior
{"title":"Honey-Mediated Synthesis of Silver Nanoparticles: A Review of Physicochemical Characterization and Functional Evaluations","authors":"José de Oliveira Alves Júnior, Adrian Lima Roberto, Adenia Mirela Alves Nunes, João Augusto Oshiro Junior","doi":"10.1007/s10876-025-02914-y","DOIUrl":"10.1007/s10876-025-02914-y","url":null,"abstract":"<div><p>The synthesis of silver nanoparticles with honey (H-AgNPs) has advanced by avoiding toxic reagents and harmful by products. Unlike other natural products, honey stands out for its practicality, eliminating the need for complex extraction processes and preservation steps. H-AgNPs possess distinct physicochemical properties, including optical and functional characteristics that can be enhanced by the presence of honey, making them promising candidates for applications in the pharmaceutical, chemical, and materials industries. This review begins with an examination of the synthesis parameters of H-AgNPs and the direct impact of variations in conditions on nanoparticle size, absorption spectra, and the main physicochemical characterization techniques employed to study these nanometals. Subsequently, the main applications of H-AgNPs were demonstrated in terms of their functional evaluations in biomedical fields and their contributions to materials engineering, thus demonstrating their promising potential observed in various in vitro and in vivo studies. The discussion also covers integration and the main challen ges encountered in scaling up production and advancing to clinical methods. However, there are still advantages to their use over other biosyntheses. Although H-AgNPs possess remarkable properties that make them suitable for a variety of applications, their synthesis continues to be hampered by limitations that go beyond current knowledge.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":618,"journal":{"name":"Journal of Cluster Science","volume":"36 6","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145227945","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Structures and Bonding of Lanthanide-Doped Endohedral Borospherenes Ln@B400/+ (Ln = Ce, Pr, Nd, Pm, Sm, Eu, Gd)","authors":"Xiao-Ni Zhao, Ting Zhang, Xiao-Qin Lu, Si-Dian Li","doi":"10.1007/s10876-025-02908-w","DOIUrl":"10.1007/s10876-025-02908-w","url":null,"abstract":"<div><p>Metal-doped endohedral borospherenes M@B<sub>40</sub> have attracted considerable attention since the discovery of the first boroshphenes B<sub>40</sub><sup>−/0</sup> in 2014. Systematical density functional theory investigations performed herein unveil the ground-state structures and coordination bonding patterns of a series of lanthanide-doped endohedral borospherenes Ln@B<sub>40</sub><sup>0/+</sup>, including the doublet <i>C</i><sub>2<i>v</i></sub> Ce@B<sub>40</sub><sup>+</sup> (<b>1</b>, <sup>2</sup>B<sub>1</sub>), triplet <i>C</i><sub>2<i>v</i></sub> Ce@B<sub>40</sub> (<b>2</b>, <sup>3</sup>A<sub>2</sub>), quartet <i>C</i><sub>2<i>v</i></sub> Pr@B<sub>40</sub> (<b>3</b>, <sup>4</sup>B<sub>1</sub>), quintet <i>C</i><sub>2<i>v</i></sub> Nd@B<sub>40</sub> (<b>4</b>, <sup>5</sup>A<sub>1</sub>), sextet <i>C</i><sub>2</sub> Pm@B<sub>40</sub> (<b>5</b>, <sup>6</sup>A), septet <i>C</i><sub>2<i>v</i></sub> Sm@B<sub>40</sub> (<b>6</b>, <sup>7</sup>A<sub>2</sub>), octet <i>D</i><sub>2<i>d</i></sub> Eu@B<sub>40</sub> (<b>7</b>, <sup>8</sup>B<sub>1</sub>), and octet <i>C</i><sub>2<i>v</i></sub> Gd@B<sub>40</sub><sup>+</sup> (<b>8</b>, <sup>8</sup>A<sub>2</sub>). Detailed principal interaction spin orbital (PISO) and adaptive natural density partitioning (AdNDP) bonding pattern analyses indicate that, with the number of unpaired α-electrons changing from n<sub>α</sub> = 1, 2, 3, 4, 5, 6, 7, to 7 in the series, their coordination bonding energies decrease monotonically from <i>E</i><sub>c</sub> = 7.22, 6.93, 5.67, 4.85, 4.67, 4.29, 4.02, to 2.07 eV, respectively, with the dominating percentage contributions of the Ln 5d-involved PISOs to the overall <i>E</i><sub>c</sub> increasing almost monotonically from 66 to 83%, while the minor contributions of the Ln 4f-involved PISOs varying between 0.3% and 12.1% and that of Ln 6s-involved PISO pairs remaining basically unchanged in a narrow range between 6% and 8%. In average, the dominating 5d-invloved PISOs in Ln@B<sub>40</sub> contribute about 72.8% to the overall <i>E</i><sub>c</sub>, 19.3% higher than that (53.4%) of the 6d-involved PISOs in the newly reported actinide-doped An@B<sub>40</sub><sup>+/0/−</sup>, while the minor 4f-involved PISOs in Ln@B<sub>40</sub> contribute about 6.1% to <i>E</i><sub>c</sub>, 15.7% lower than that (21.8%) of the 5f-invloved PISOs in An@B<sub>40</sub><sup>+/0/−</sup>, quantitatively unveiling the differences in coordination bonding patterns between Ln@B<sub>40</sub><sup>+/0</sup> and An@B<sub>40</sub><sup>+/0/−</sup>.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":618,"journal":{"name":"Journal of Cluster Science","volume":"36 6","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145227946","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Structures and Photoluminescence Properties of Two Cu(I) Thiolate Complexes Supported by Sulfur-Sulfur Interactions","authors":"Shu-Yan Liang, Zi-Yi Wu, Sheng Hu","doi":"10.1007/s10876-025-02922-y","DOIUrl":"10.1007/s10876-025-02922-y","url":null,"abstract":"<div><p>Two novel Cu(I) complexes, [Cu(tdt)] (<b>1</b>) and [Cu<sub>6</sub>(mtt)<sub>6</sub>] (<b>2</b>), were synthesized using the solvothermal method with CuI and 1,3,4-thiadiazole-2-thiol (Htdt) or 4-methylthiazole-2-thiol (Hmtt). In <b>1</b>, Cu(I) coordinates with the tdt ligand to form a new two-dimensional copper-sulfur based coordination polymer; tdt links binuclear copper clusters into a graphite-like layered structure. In <b>2</b>, Cu(I) coordinates with the mtt ligand to form a copper-sulfur cluster-based compound; six mtt surround six copper atoms to construct an inverted triangular prismatic [Cu<sub>6</sub>S<sub>6</sub>] cluster molecule. Sulfur-sulfur interactions were observed in the structures of both compounds. We also tested the luminescent properties of the compounds: complex <b>1</b> emits red light at 632 nm under excitation, while complex <b>2</b> emits near-infrared photoluminescence at 833 nm in its solid-state photoluminescence spectrum.</p></div>","PeriodicalId":618,"journal":{"name":"Journal of Cluster Science","volume":"36 6","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145227937","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Nilesh T. Pandit, Avdhut D. Kadam, Avinash A. Survase, Vishvanath B. Ghanwat, Nilam S. Dhane, Priyank M. Shah, Santosh B. Kamble
{"title":"Co-Engineered Ag/CuO Nanoparticles Via Artemisia pallens: Catalytic, Antibacterial, and Molecular Docking Perspectives","authors":"Nilesh T. Pandit, Avdhut D. Kadam, Avinash A. Survase, Vishvanath B. Ghanwat, Nilam S. Dhane, Priyank M. Shah, Santosh B. Kamble","doi":"10.1007/s10876-025-02911-1","DOIUrl":"10.1007/s10876-025-02911-1","url":null,"abstract":"<div><p>The synthesis of bimetallic nanoparticles using eco-friendly and sustainable methods has garnered significant attention in recent years due to their potential in diverse catalytic and biomedical applications. This study reports, for the first time, the green synthesis of Ag/CuO bimetallic nanoparticles using <i>Artemisia pallens</i> extract as a biogenic reducing and stabilizing agent, and demonstrates their superior catalytic performance in an eco-friendly Petasis reaction. The synthesized nanoparticles were characterized using various techniques, including XRD, SEM, EDX, and FTIR. The XRD analysis confirmed the crystalline Ag/CuO phases with peaks at 38.1° and 44.3° with an average size of 14.51 nm ± 1.00 nm, while SEM showed have flower-like morphology, EDX confirmed Ag, Mg, Si, Ca, C, O, and Cu presence, and FTIR indicated successful capping by <i>Artemisia pallens</i> phytochemicals. The Ag/CuO nanoparticles exhibited high catalytic efficiency under mild aqueous hydrotropic conditions, as reflected by excellent Reaction Mass Efficiency (RME) values (up to 79%) and notably low Process Mass Intensity (PMI) values (as Low as 14 g/g), clearly outperforming traditional methods that use organic solvents and mineral acids. The Turnover Number (TON) and Turnover Frequency (TOF) further emphasize their effectiveness and reusability for green organic synthesis. Additionally, the antibacterial activity of Ag/CuO nanoparticles was evaluated against Staphylococcus aureus, Bacillus subtilis, Escherichia coli, and Pseudomonas aeruginosa using the agar disk diffusion method. The nanoparticles showed significant inhibition zones ranging from 14 to 20 mm, indicating strong antibacterial efficacy. Furthermore, molecular docking studies of indoline-derived arylglycine derivatives revealed strong binding interactions with the 5GS4 target protein, with Molecule 4f showing the highest affinity (MolDock Score: -114.278, Rerank Score: 90.5965), comparable to the standard drug spironolactone. This work highlights a sustainable approach for synthesizing functional bimetallic nanoparticles with dual applications in green catalysis and antimicrobial activity, contributing to advancements in environmentally friendly nanotechnology and synthetic methodologies.</p></div>","PeriodicalId":618,"journal":{"name":"Journal of Cluster Science","volume":"36 6","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145227944","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ahmed Anwar Hassan, Yosri A. Fahim, Mohamed Eid M. Ali
{"title":"Correction to: Efficient Removal of Cr (VI) and As (V) from Aqueous Solution Using Magnetically Separable Nickel Ferrite Nanoparticles","authors":"Ahmed Anwar Hassan, Yosri A. Fahim, Mohamed Eid M. Ali","doi":"10.1007/s10876-025-02910-2","DOIUrl":"10.1007/s10876-025-02910-2","url":null,"abstract":"","PeriodicalId":618,"journal":{"name":"Journal of Cluster Science","volume":"36 6","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10876-025-02910-2.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145227938","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mohammed Lakrat, Laura Costa Pinho, Catarina Santos, Maria Helena Fernandes, Allal Barroug, Hassan Noukrati
{"title":"Bone Remodeling-Inspired Synthesis of Biomimetic Multi-Doped Calcium Phosphate Nanoparticles for Enhanced Osteoinductive Performance","authors":"Mohammed Lakrat, Laura Costa Pinho, Catarina Santos, Maria Helena Fernandes, Allal Barroug, Hassan Noukrati","doi":"10.1007/s10876-025-02907-x","DOIUrl":"10.1007/s10876-025-02907-x","url":null,"abstract":"<div><p>This work describes a biomimetic approach for synthesizing multi-doped calcium phosphate nanoparticles (CaP NPs) that closely mimic the structure and composition of bone mineral. Inspired by bone remodeling, hydroxyapatite (HAp), used as a combined calcium and phosphorus source, was first dissolved in an acidic medium and then re-precipitated in simulated body fluid (SBF), serving as a physiologically relevant source of trace elements. The results showed that multi-doped amorphous calcium phosphate (ACP) formed within the first few minutes and gradually transformed into poorly crystalline carbonated hydroxyapatite over a 21-day maturation period. This extended observation provides valuable insights into the incorporation of trace elements and their role in the maturation of bone-like mineral phases. The resulting nanoparticles exhibited low crystallinity and nanometric dimensions, along with increased surface area and porosity. They also demonstrated excellent biocompatibility with MG63 osteoblasts and effectively promoted osteogenic responses in human mesenchymal stromal cells. Overall, this strategy offers valuable insights for designing biomimetic CaP NPs inspired by living tissue to support future applications in hard tissue regeneration.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":618,"journal":{"name":"Journal of Cluster Science","volume":"36 5","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145169183","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Photoelectrochemical Properties of Nitrogen Doped Graphene Quantum Dots Sensitized Copper Oxide Nanotaper Photoanode","authors":"Tanmoy Majumder, Dulal Chandra Patra, Kaberi Saha, Kamalesh Debnath, Biman Debbarma","doi":"10.1007/s10876-025-02899-8","DOIUrl":"10.1007/s10876-025-02899-8","url":null,"abstract":"<div><p>The photoelectrochemical (PEC) and stability performance of CuO nanotapers (CuO NT) sensitized with nitrogen-doped graphene quantum dots (NGQD) has been investigated. NGQDs and CuO NTs were synthesized using facile, low-cost, and scalable solvothermal and hydrothermal methods, respectively. Morphological characterization of the CuO NTs and NGQDs was achieved through the analysis of scanning electron microscopy (SEM) and transmission electron microscope (TEM) images. The CuO NTs are about 500 nm in length, and the NGQDs have diameters ranging from 2.5 nm to 6 nm. The X-ray photoelectron spectroscopy (XPS) analysis confirmed nitrogen doping in GQDs and the attachment of NGQDs to CuO NTs. Photoluminescence (PL) and UV-visible (UV-vis) spectroscopy were used to study the optical properties of NGQDs. Linear sweep voltammetry, amperometric i-t measurements, and electrochemical impedance spectroscopy were used to investigate the photoelectrochemical properties of the photoanodes. Sensitization with NGQDs significantly enhanced the performance of the CuO NT photoanode, yielding a two-fold increase in short-circuit photocurrent density and a 13.35-fold enhancement in the photocurrent-to-dark current ratio. A photostability study using extended amperometric i-t measurements demonstrated that NGQD sensitization significantly enhanced the CuO NT photoanode’s ability to retain photocurrent.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":618,"journal":{"name":"Journal of Cluster Science","volume":"36 5","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10876-025-02899-8.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145168885","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ehsan Esmaeili, Alireza Feizbakhsh, Homayon Ahmad Panahi, Ali Ezabadi, Elham Moniri
{"title":"Synthesis of Triethanolamine Ionic Liquid Immobilized on Magnetic Mesoporous Silica as a Recyclable and Efficient Adsorbent and its Applications for the Removal of Acetaminophen from Aqueous Solutions","authors":"Ehsan Esmaeili, Alireza Feizbakhsh, Homayon Ahmad Panahi, Ali Ezabadi, Elham Moniri","doi":"10.1007/s10876-025-02909-9","DOIUrl":"10.1007/s10876-025-02909-9","url":null,"abstract":"<div><p>Toxic pharmaceutical compounds are released into aquatic environments, posing risk to ecological sustainability. Therefore, it is essential to eliminate these toxic compounds. In this study, we synthesized a triethanolamine ionic liquid immobilized on magnetic mesoporous silica and assessed its effectiveness as a magnetic nanoadsorbent for removing acetaminophen from different water samples. The successful synthesis of the nanoadsorbent was confirmed through Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), field emission scanning electron microscope (FE-SEM), energy-dispersive X-ray spectroscopy (EDX), vibrating sample magnetometer (VSM), and thermal gravimetric (TG) analyses. FT-IR analysis revealed characteristic bands for the functional groups of nanoadsorbent, while XRD confirmed the cubic spinel structure of magnetic nanoparticles, showing reduced crystallinity after modification. FE-SEM images showed spherical nanoparticles with diameters ranging from 40 to 72 nm, EDX verified the elemental composition, VSM indicated superparamagnetism, and TG analysis demonstrated thermal stability with approximately 40% total weight loss. Under optimal conditions-specifically a concentration of 20 mg L<sup>−1</sup>, pH 6, a contact time of 45 min, and a temperature of 298 K, about 92% of the drug was removed. The isotherm and kinetic data confirm the applicability of the Langmuir and pseudo-second-order models, respectively, with a maximum monolayer sorption capacity of 97.67 mg g<sup>−1</sup> derived from the Langmuir model. Additionally, the data analysis indicated that adsorption process is endothermic and spontaneous. The nanoadsorbent maintained its removal efficiency after six reuse cycles. Across a concentration range of 0.01 to 500 mg L<sup>−1</sup>, a linear calibration curve was obtained (R² = 0.9981), with limits of detection and quantification calculated at 3 µg mL<sup>−1</sup> and 30 µg mL<sup>−1</sup>, respectively. Consequently, the nanoadsorbent can effectively remove the drug from various water samples obtained from medical plants achieving analyte recovery values between 91.30% and 91.70%, with a precision indicated by a relative standard deviation of less than 1.12%.</p></div>","PeriodicalId":618,"journal":{"name":"Journal of Cluster Science","volume":"36 5","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145168887","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}