Chemical Papers最新文献_第6页

Correction: Nanoparticle-enhanced water-based drilling fluids: comparative effects of silica, graphene, and zeolite on rheology and filtration 修正：纳米颗粒增强水基钻井液：二氧化硅、石墨烯和沸石对流变性和过滤的比较影响

IF 2.5 4区化学

Chemical Papers Pub Date : 2026-05-30 DOI: 10.1007/s11696-026-05071-2

Sajjad Mozaffari, Omeid Rahmani, Ali Esfandyari Bayat, Armin Hosseinian

引用次数: 0

Enhanced electrochemical properties of graphene dots–modified nickel slag toward the [Fe(CN)₆]³⁻/[Fe(CN)₆]⁴⁻ redox system 石墨烯点改性镍渣对[Fe（CN）₆]³/[Fe（CN）₆]⁴的电化学性能的增强

IF 2.5 4区化学

Chemical Papers Pub Date : 2026-05-30 DOI: 10.1007/s11696-026-05075-y

Irwan Irwan, Muhammad Zakir, Muhammad Nurdin, Paulina Taba, Abdul Wahid Wahab, Dahlang Tahir, St Fauziah, Sjamsiah Sjamsiah

{"title":"Enhanced electrochemical properties of graphene dots–modified nickel slag toward the [Fe(CN)₆]³⁻/[Fe(CN)₆]⁴⁻ redox system","authors":"Irwan Irwan, Muhammad Zakir, Muhammad Nurdin, Paulina Taba, Abdul Wahid Wahab, Dahlang Tahir, St Fauziah, Sjamsiah Sjamsiah","doi":"10.1007/s11696-026-05075-y","DOIUrl":"10.1007/s11696-026-05075-y","url":null,"abstract":"<div><p>This study aims to investigate the electrochemical properties of graphene dot electrodes modified with nickel slag (GDs–NS), synthesized via a combination of hydrothermal and thermal treatments. The thermal treatment was conducted at 700 °C, 900 °C, and 1100 °C to produce GDs-NS<sub>700</sub>, GDs-NS<sub>900</sub>, and GDs-NS<sub>1100</sub>, respectively. The structural characteristics, morphology, and elemental composition of the materials were analyzed using XRD, FTIR, and SEM–EDX. The electrochemical properties of the electrodes were evaluated using cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) with the redox probe system [Fe(CN)₆]³⁻/[Fe(CN)₆]⁴⁻ in phosphate buffer solution (PBS, pH 7) at a scan rate of 100 mV/s. The results show that the GDs-NS<sub>700</sub> electrode exhibits superior electrochemical performance compared to GDs-NS<sub>900</sub> and GDs-NS<sub>1100</sub>, as indicated by a lower charge transfer resistance (Rct = 305.17 Ω) and a smaller peak potential separation (ΔEp). In addition, the GDs-NS<sub>700</sub> electrode produces higher peak currents, with an oxidation peak current (Ipa) of 182.85 µA and a reduction peak current (Ipc) of − 173.93 µA. The scan rate study demonstrates that both anodic and cathodic peak currents increase linearly with correlation coefficients (R²) of 0.9976 and 0.9968, respectively. The effect of supporting electrolytes also indicates that phosphate buffer solution (PBS, pH 7) yields higher and more symmetrical redox responses than citrate buffer (CBR, pH 4) and NaOH solution. Overall, these findings indicate that the GDs-NS<sub>700</sub> electrode possesses superior electrochemical characteristics and shows strong potential for further development in electrochemical applications.</p></div>","PeriodicalId":513,"journal":{"name":"Chemical Papers","volume":"80 10","pages":"11553 - 11563"},"PeriodicalIF":2.5,"publicationDate":"2026-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149007439","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}

引用次数: 0

MXene-boosted ZnO/SnS2 ternary nanocomposites for synergistic adsorption and photocatalysis of cationic and anionic dyes mxene增强ZnO/SnS2三元纳米复合材料对阳离子和阴离子染料的协同吸附和光催化

IF 2.5 4区化学

Chemical Papers Pub Date : 2026-05-30 DOI: 10.1007/s11696-026-04999-9

Jawaria Fatima, Shaoping Tong, Kun-Yi Andrew Lin

{"title":"MXene-boosted ZnO/SnS2 ternary nanocomposites for synergistic adsorption and photocatalysis of cationic and anionic dyes","authors":"Jawaria Fatima, Shaoping Tong, Kun-Yi Andrew Lin","doi":"10.1007/s11696-026-04999-9","DOIUrl":"10.1007/s11696-026-04999-9","url":null,"abstract":"<div><p>A sustainable approach to clean water depends on materials that can effectively remove organic contaminants. ZnO/SnS<sub>2</sub>/Ti<sub>3</sub>C<sub>2</sub> nanocomposites were synthesized by a one-pot hydrothermal method, and the Ti<sub>3</sub>C<sub>2</sub> loading was varied from 200 to 800 mg to examine its effect in this work. The addition of Ti<sub>3</sub>C<sub>2</sub> MXene was found to improve charge-carrier separation and enhance the visible-light response of the system. These modifications helped assess their influence on the material’s ability to degrade cationic and anionic dye pollutants. The characterization results revealed that ZnO/SnS<sub>2</sub>/Ti<sub>3</sub>C<sub>2</sub> (800 mg) displayed slower charge-carrier recombination, a narrowed energy band gap of 1.84 eV, and stronger absorption in the visible light range. The experimental findings showed that the ZnO/SnS<sub>2</sub>/Ti<sub>3</sub>C<sub>2</sub> (800 mg) ternary nanocomposite achieved 98.3% removal of Congo red (anionic) and 99% removal of methylene blue (cationic) from wastewater after about 110 min of UV-A irradiation (λ<sub>max</sub> = 352 nm), along with a COD reduction of up to 90%. Radical scavenger tests confirmed that the degradation of Congo red is mainly driven by hydroxyl and superoxide radicals. The ZnO/SnS<sub>2</sub>/Ti<sub>3</sub>C<sub>2</sub> (800 mg) photocatalyst maintained 76% of its Congo red degradation efficiency after four successive regeneration cycles, demonstrating excellent structural stability and long-term durability. The results confirm that the ZnO/SnS<sub>2</sub>/Ti<sub>3</sub>C<sub>2</sub> system provides a stable, efficient, and cost-effective strategy for sustainable wastewater treatment.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":513,"journal":{"name":"Chemical Papers","volume":"80 9","pages":"10193 - 10217"},"PeriodicalIF":2.5,"publicationDate":"2026-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148871609","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}

引用次数: 0

LC-HRMS-untargeted metabolomics for identification and authentication of celery (Apium graveolens) from two related plants with similar morphologies lc - hrms -非靶向代谢组学对两种形态相似植物芹菜的鉴定和鉴定

IF 2.5 4区化学

Chemical Papers Pub Date : 2026-05-29 DOI: 10.1007/s11696-026-05004-z

Relita Florentika, Wulan Tri Wahyuni, Mohamad Rafi

{"title":"LC-HRMS-untargeted metabolomics for identification and authentication of celery (Apium graveolens) from two related plants with similar morphologies","authors":"Relita Florentika, Wulan Tri Wahyuni, Mohamad Rafi","doi":"10.1007/s11696-026-05004-z","DOIUrl":"10.1007/s11696-026-05004-z","url":null,"abstract":"<div><p>Celery shares morphological traits with other Apiaceae species, such as cilantro and parsley, all of which are widely used in commercial products. Once processed into powders or extracts, differentiating these species becomes difficult, increasing the risk of adulteration and compromised efficacy. This study aims to develop an untargeted metabolomics using liquid chromatography-high-resolution mass spectrometry (LC-HRMS) to identify and authenticate celery. The validation of LC-HRMS untargeted metabolomics, paired with partial least squares discriminant analysis (PLS-DA) and principal component analysis (PCA), was expected to resolve the issue of celery adulteration. Metabolite profiles were obtained from samples that were extracted using ultrasonic waves. Optimization of LC-HRMS enabled the separation of apigenin and the detection of 577 metabolites in positive mode. Using the mass-to-ion-charge ratio and peak-intensity data, we applied PCA to reduce the large dataset and PLS-DA to identify potential markers based on variable importance in projection and coefficient scores, which were found only in one species. Six celery markers were senkyunolide A, sedanolide, senkyunolide F, apigenin-O-dihexosyl deoxyhexoside, quillaic acid, and luteolin. The PLS-DA model validation was performed using fivefold cross-validation and a permutation test. The R2 and Q2 values of 0.986 and 0.972, respectively, indicate that the model exhibits high predictive ability, achieving 100% accuracy. Moreover, the p-value < 0.05 indicates that the relationship between the X and Y variables is not coincidental. PCA clearly separated the species, with QC samples clustering tightly. The total of 65.0% of the two PC scores helps prevent overfitting.</p></div>","PeriodicalId":513,"journal":{"name":"Chemical Papers","volume":"80 9","pages":"10259 - 10275"},"PeriodicalIF":2.5,"publicationDate":"2026-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148871502","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}

引用次数: 0

Sustainable polyester composites reinforced with loofah foam core, C. roseus fiber, and chitosan: mechanical, wear, fatigue, and machinability performance 可持续聚酯复合材料增强丝瓜泡沫芯，C.玫瑰纤维，壳聚糖：机械，磨损，疲劳和可加工性性能

IF 2.5 4区化学

Chemical Papers Pub Date : 2026-05-29 DOI: 10.1007/s11696-026-05021-y

M. Zahir Hussain, D. Jayabalakrishnan

{"title":"Sustainable polyester composites reinforced with loofah foam core, C. roseus fiber, and chitosan: mechanical, wear, fatigue, and machinability performance","authors":"M. Zahir Hussain, D. Jayabalakrishnan","doi":"10.1007/s11696-026-05021-y","DOIUrl":"10.1007/s11696-026-05021-y","url":null,"abstract":"<div><p>This study presents novel polyester resin composites reinforced with waste rough Loofah foam, <i>C. roseus fiber</i>, and shrimp shell–derived chitosan particles to improve mechanical, thermal, and durability properties for applications in marine, packaging, biomedical, automotive, aerospace, and construction fields. The effects of fiber and chitosan contents were evaluated through tensile, flexural, impact, hardness, wear, thermal, fatigue, flammability, water absorption, and drilling tests. Composite AB4 (40 vol% fiber, 3 vol% chitosan) showed improved tensile (145 MPa), flexural (160 MPa), impact (6.5 J), and fatigue (25,452 cycles) properties due to strong fiber–matrix bonding. AB5 (5 vol% chitosan) exhibited enhanced wear resistance (0.0067 mm<sup>3</sup>/N m), thermal conductivity (0.42 W/m K), and minimal water absorption (0.042%), attributed to enhanced matrix densification. SEM analysis confirmed improved adhesion and reduced delamination. These results highlight the composites’ potential for high-performance, wear-resistant, and precision-engineered applications.</p></div>","PeriodicalId":513,"journal":{"name":"Chemical Papers","volume":"80 9","pages":"10491 - 10503"},"PeriodicalIF":2.5,"publicationDate":"2026-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148871603","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}

引用次数: 0

Microwave-irradiated green synthesis of antibacterial and antioxidant silver nanoparticles from Clerodendrum infortunatum leaf extracts 微波辐射绿色合成抗氧化银纳米粒子的研究

IF 2.5 4区化学

Chemical Papers Pub Date : 2026-05-29 DOI: 10.1007/s11696-026-05104-w

Dima Alkadri, Avinash Basavarajappa, Kotresh Kyathanahally Rajashekarappa, Prabhanshu Kumar, Gurumurthy Dummi Mahadevan

{"title":"Microwave-irradiated green synthesis of antibacterial and antioxidant silver nanoparticles from Clerodendrum infortunatum leaf extracts","authors":"Dima Alkadri, Avinash Basavarajappa, Kotresh Kyathanahally Rajashekarappa, Prabhanshu Kumar, Gurumurthy Dummi Mahadevan","doi":"10.1007/s11696-026-05104-w","DOIUrl":"10.1007/s11696-026-05104-w","url":null,"abstract":"<div><p>Biosynthesized nanoparticles are increasingly valued for their unique biological applications and plant-derived metabolites that enable green synthesis. This study reports the easy and eco-friendly synthesis of silver nanoparticles (AgNPs) from an aqueous leaf extract of <i>Clerodendrum infortunatum</i>. Characterization through UV‒visible spectroscopy, FTIR, XRD, EDX, and HR‒TEM confirmed their structural, chemical, and morphological properties. A stable UV‒Vis peak at 420 nm was observed after 24 h of incubation in the dark. FTIR analysis revealed key functional groups involved in reduction, capping, and stabilization, including phenolic, amine, ester, and aromatic groups. XRD analysis confirmed a face-centered cubic (fcc) crystalline structure, similar to that of the AgNPs synthesized from <i>Moringa oleifera</i> extract. HR-TEM and SAED revealed that well-dispersed <i>Cl</i>-AgNPs with biomolecular coatings prevented aggregation, while EDX analysis verified their purity, detecting a strong silver peak at 3 keV along with trace capping elements. <i>Cl</i>-AgNPs exhibited stronger antibacterial activity against <i>S. typhi</i> than against <i>S. aureus, K. pneumoniae</i>, or <i>E. faecalis</i>, likely due to cell wall differences. Antioxidant analysis revealed that <i>Cl</i>-AgNPs had greater activity than Trolox did. Membrane leakage studies confirmed increased sugar and protein release, with the highest leakage in <i>E. faecalis</i>, demonstrating the ability of <i>Cl</i>-AgNPs to compromise microbial cell integrity.</p></div>","PeriodicalId":513,"journal":{"name":"Chemical Papers","volume":"80 10","pages":"11937 - 11948"},"PeriodicalIF":2.5,"publicationDate":"2026-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149007429","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}

引用次数: 0

Disposable electrochemical biosensor based on carbon nanotube-chitosan composites for miRNA-34a detection 基于碳纳米管-壳聚糖复合材料的一次性电化学生物传感器检测miRNA-34a

IF 2.5 4区化学

Chemical Papers Pub Date : 2026-05-29 DOI: 10.1007/s11696-026-04995-z

Selen Soyalp, Esma Yildiz, Arzum Erdem

{"title":"Disposable electrochemical biosensor based on carbon nanotube-chitosan composites for miRNA-34a detection","authors":"Selen Soyalp, Esma Yildiz, Arzum Erdem","doi":"10.1007/s11696-026-04995-z","DOIUrl":"10.1007/s11696-026-04995-z","url":null,"abstract":"<div><p>Multi walled carbon nanotube–chitosan (MWCNT–CHIT) nanocomposite modified disposable pencil graphite electrodes (PGEs) were developed for the electrochemical detection of miRNA-34a (miR-34a), a biomarker associated with Alzheimer’s disease and various types of cancer. Electrochemical measurements were carried out using a three-electrode system, in which the MWCNT–CHIT modified PGE served as the working electrode. The electrodes were first characterized by cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS) and microscopic techniques. An inosine-substituted miRNA-34a-specific DNA probe was used as the biorecognition element and hybridized with the target miRNA via complementary base pairing in solution phase. Following hybridization, the electrochemical detection was performed using differential pulse voltammetry (DPV) by monitoring the guanine oxidation signal. Due to the inosine substitution in the DNA probe sequence, the electrochemical response arises exclusively from the guanine bases of the target miRNA-34a. Under optimized conditions, the biosensor exhibited a linear detection range from 1 to 6 µg/mL, with a detection limit of 0.569 µg/mL (3.22 pmol in a 40 µL sample). The sensitivity was calculated as 1.52 µA µg mL<sup>−1</sup> cm<sup>−2</sup>. Selectivity was evaluated using non-complementary miRNA sequences. Overall, this biosensor platform provides a rapid, cost-effective, and disposable biosensing system for miRNA-34a detection. The combination of an MWCNT–chitosan composite modified electrode with an optimized electrochemical detection strategy enables a simple and efficient analytical approach suitable for low-cost biosensing applications.</p></div>","PeriodicalId":513,"journal":{"name":"Chemical Papers","volume":"80 9","pages":"10115 - 10130"},"PeriodicalIF":2.5,"publicationDate":"2026-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148871602","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}

引用次数: 0

Integrated biosorption of crystal violet using raw and cellulose-extracted Cucurbita pepo L. peels: experimental study coupled with DFT, NCI-RDG, and molecular dynamics simulations 生瓜皮和纤维素提取物对结晶紫的综合生物吸附：结合DFT、NCI-RDG和分子动力学模拟的实验研究

IF 2.5 4区化学

Chemical Papers Pub Date : 2026-05-29 DOI: 10.1007/s11696-026-05022-x

Daoiya Zouied, Amina Benaissa, Nawal Bouzenad, Malika Khelfaoui, Ibtissam Boussouf, Radja Nada Boucetta, Erkan Can, Amine Titah, Noura Naili, Karima Bekouche, Radia Selaimia, Sabrine Boucetta

{"title":"Integrated biosorption of crystal violet using raw and cellulose-extracted Cucurbita pepo L. peels: experimental study coupled with DFT, NCI-RDG, and molecular dynamics simulations","authors":"Daoiya Zouied, Amina Benaissa, Nawal Bouzenad, Malika Khelfaoui, Ibtissam Boussouf, Radja Nada Boucetta, Erkan Can, Amine Titah, Noura Naili, Karima Bekouche, Radia Selaimia, Sabrine Boucetta","doi":"10.1007/s11696-026-05022-x","DOIUrl":"10.1007/s11696-026-05022-x","url":null,"abstract":"<div><p>This study investigates the removal of crystal violet (CV) dye from aqueous solutions using two bio-based materials derived from the peel of <i>Cucurbita pepo</i> L. raw peel powder and extracted cellulose. The materials were characterized using FTIR and XRD spectroscopy. FTIR analysis of the peel powder revealed functional groups favourable for dye adsorption, whilst XRD analyses confirmed the nanometric crystalline structure of the extracted cellulose. Biosorption experiments carried out with a 15 ppm CV solution showed that adsorption efficiency increased with the mass of biosorbent, due to a greater availability of active sites. A maximum removal efficiency of 95.78% was achieved with 0.4 g of peel powder after 130 min, reducing the residual concentration to 0.66 ppm. UV-Vis spectroscopy confirmed the gradual decolourisation of the dye as the mass of the biosorbent increased. For cellulose, the adsorption process achieved 96.55% removal with 0.3 g after 70 min. The adsorption mechanism of crystal violet (CV) on α-cellulose was studied in greater detail using quantum chemistry descriptors, NCI-RDG analysis and interaction energy calculations. The results indicate that protonated CV (CV<sup>3+</sup>) interacts strongly with cellulose via hydrogen bonding and electrostatic interactions. Interaction energy calculations revealed a cooperative adsorption mechanism, with a maximum interaction energy of − 167.24 kcal mol<sup>−1</sup> for a three-chain cellulose model, highlighting the effectiveness of materials derived from <i>Cucurbita pepo</i> peel for CV removal.</p></div>","PeriodicalId":513,"journal":{"name":"Chemical Papers","volume":"80 9","pages":"10505 - 10522"},"PeriodicalIF":2.5,"publicationDate":"2026-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148871604","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}

引用次数: 0

Synthesis and characterization of Cu-Ni and Cu-Co nanowires obtained using CTAB as surfactant 以CTAB为表面活性剂制备Cu-Ni和Cu-Co纳米线的合成与表征

IF 2.5 4区化学

Chemical Papers Pub Date : 2026-05-29 DOI: 10.1007/s11696-026-04990-4

Anderson Y. Suárez-Heredia, Juan A. Torres-Luna, José G. Carriazo

{"title":"Synthesis and characterization of Cu-Ni and Cu-Co nanowires obtained using CTAB as surfactant","authors":"Anderson Y. Suárez-Heredia, Juan A. Torres-Luna, José G. Carriazo","doi":"10.1007/s11696-026-04990-4","DOIUrl":"10.1007/s11696-026-04990-4","url":null,"abstract":"<div><p>This work reports the tuned chemical synthesis of copper-based nanowires, including metal nanostructures of pure Cu, Cu–Ni, and Cu–Co. The synthesized nanostructures were evaluated by scanning electron microscopy (SEM), energy dispersive analysis (EDX), and X-ray diffraction (XRD). The results confirmed the synthesis of metallic copper nanowires using ODA (octadecylamine) as surfactant, and glucose as reducing agent, through a hydrothermal method. These nanostructures were then used as metal core for the synthesis of bimetallic nanowires. Thus, two different surfactants, polyvinylpyrrolidone (PVP) and cetyltrimethylammonium bromide (CTAB), were used for the synthesis of Cu–Ni core–shell nanowires, using hydrazine as reducing agent, in order to explore the effect of CTAB on this synthesis. Interestingly, PVP promoted higher crystallinity, in agreement with earlier studies, while CTAB led to more efficient nickel deposition on the core nanowires. Finally, CTAB was used for the new synthesis of bimetallic Cu-Co nanowires. These results confirm a key advance about using a new surfactant (CTAB) for synthesizing bimetallic nanowires, finding a new method for obtaining Cu–Co nanowires without needing external magnetic fields (a typical condition reported currently in the literature). The findings open a promising pathway for fabricating complex bimetallic nanostructures through straightforward chemical methods.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":513,"journal":{"name":"Chemical Papers","volume":"80 9","pages":"10027 - 10041"},"PeriodicalIF":2.5,"publicationDate":"2026-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11696-026-04990-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148871503","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}

引用次数: 0

Thickness-insensitive narrowband microwave absorption in Mn-doped ZnAl2O4 and Zn(Mg-Al)O4 spinel nanocomposites mn掺杂ZnAl2O4和Zn(Mg-Al)O4尖晶石纳米复合材料的窄波段微波吸收

IF 2.5 4区化学

Chemical Papers Pub Date : 2026-05-29 DOI: 10.1007/s11696-026-05106-8

Sahil Sharma, Gandi Suman, Sumit Patel, R. Kumaran, V. Subramanian, Saidi Reddy Parne

{"title":"Thickness-insensitive narrowband microwave absorption in Mn-doped ZnAl2O4 and Zn(Mg-Al)O4 spinel nanocomposites","authors":"Sahil Sharma, Gandi Suman, Sumit Patel, R. Kumaran, V. Subramanian, Saidi Reddy Parne","doi":"10.1007/s11696-026-05106-8","DOIUrl":"10.1007/s11696-026-05106-8","url":null,"abstract":"<div><p>This research article presents the synthesis and characterization of manganese (Mn) doped ZnAl<sub>2</sub>O<sub>4</sub> and Zn(Mg-Al)O<sub>4</sub> composites prepared via a simple one-step sol-gel method followed by sintering at 900 °C. The composites exhibit nano-polyhedron morphology and multi-phase crystalline structures confirmed by Field Emission Scanning Electron Microscope (FE-SEM) and X-ray diffraction (XRD), respectively. Optical studies using UV-Vis spectroscopy reveal semiconducting behaviour with band gaps of 1.6 eV for ZnAl<sub>2</sub>O<sub>4</sub>/Mn and 1.8 eV for Zn(Mg-Al)O<sub>4</sub>/Mn. Microwave absorption properties are investigated in the X-band frequency range (8–12 GHz) using a vector network analyzer. Both composites demonstrate narrowband absorption with thickness-insensitive resonance near 10.6 GHz, attributed to polarization and domain wall effects. ZnAl<sub>2</sub>O<sub>4</sub>/Mn shows a minimum reflection loss of −14.07 dB with a full-width half maximum (FWHM) of 0.013 GHz and a high Q-value of 814.61, indicating its potential for microwave filter applications. Additionally, Zn(Mg-Al)O<sub>4</sub>/Mn exhibits a lower absorption performance due to impedance mismatch. These findings highlight the promising application of Mn-doped spinel composites as efficient narrowband microwave absorbers for advanced electromagnetic interference mitigation and filtering technologies.</p></div>","PeriodicalId":513,"journal":{"name":"Chemical Papers","volume":"80 10","pages":"11949 - 11962"},"PeriodicalIF":2.5,"publicationDate":"2026-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149007436","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}

引用次数: 0