Yujie Yang , Huixing Lin , Jiaqi Li , Yang Gao , Xiaogang Yao , Haiyi Peng
{"title":"Bioinspired honeycomb structure enables high thermal conductivity in h-BN/PSAE composites via TBA-templating","authors":"Yujie Yang , Huixing Lin , Jiaqi Li , Yang Gao , Xiaogang Yao , Haiyi Peng","doi":"10.1016/j.coco.2026.102719","DOIUrl":"10.1016/j.coco.2026.102719","url":null,"abstract":"<div><div>Efficient thermal management is a critical challenge for next-generation electronics, where conventional polymer-based materials suffer from inherently low thermal conductivity. Inspired by natural honeycomb structures, we developed a freeze-casting strategy to fabricate high-performance hexagonal boron nitride (h-BN)/polysilylaryl-enyne (PSAE) composites exhibiting enhanced thermal conductivity. By leveraging the unidirectional crystallization of tert-butyl alcohol (TBA), a highly ordered h-BN honeycomb scaffold was constructed, facilitating the formation of efficient phonon conduction pathways. The composites, with a low h-BN (10 μm) ratio of 23 vol%, exhibit an outstanding omni-directional thermal conductivity of 4.71 W/(m·K) along the z-axis and 3.44 W/(m·K) along the x-axis, significantly outperforming conventional polymer composites. Moreover, dielectric characterization confirms that the honeycomb structure enhances anisotropic dielectric behavior (<em>ε</em><sub><em>rz</em></sub> = 3.68, <em>ε</em><sub><em>rx</em></sub> = 3.32, for h-BN (10 μm) at 23 vol%). The proposed bioinspired approach presents a scalable and effective route for developing lightweight, thermally conductive composites for advanced electronic applications.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"62 ","pages":"Article 102719"},"PeriodicalIF":7.7,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145975136","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Investigating twist level control for modulating the impregnation process in high-quality 3D printed continuous flax fiber/PLA composites","authors":"Xunyi Pei , Hui Ben , Limin Ao , Zeguang Pei","doi":"10.1016/j.coco.2026.102726","DOIUrl":"10.1016/j.coco.2026.102726","url":null,"abstract":"<div><div>High-quality 3D printing of continuous flax fiber reinforced composites (CFFRCs) is a key priority for sustainable manufacturing. To enable low-void printing, a pre-impregnation process with tunable yarn twist level was introduced. Based on this method, pre-impregnated continuous flax filaments (PICFFs) with controlled twist level were fabricated. CFFRC specimens printed from PICFFs spanning 30–430 turns/m were evaluated and analyzed by microscopic images to quantify fiber orientation and void content, with their mechanical behavior being assessed by tensile testing with fractography. The effects of twist level control on fiber alignment, impregnation quality, and tensile properties were then investigated. The results show that as the yarn twist level decreases, voids in the yarn and between filaments are both reduced, and distributions of fiber orientation angles converge toward the print path. The internal void content and mean fiber orientation angle for the printed CFFRC specimen at the yarn twist level of 30 turns/m decrease by 69.7 % and 25° compared to the specimen fabricated from non-detwisted yarn, respectively. In addition, the dominant failure mode shifts from interfacial debonding and pullout to fiber fracture with matrix tearing. As the yarn twist level decreases from 430 turns/m to 30 turns/m, mechanical properties of the CFFRC specimen are improved accordingly, with the tensile strength and elastic modulus increasing by 21.6 % and 53.3 %, respectively. The method proposed in this work provides a novel and effective way of improving the performance of CFFRCs through controlling key process parameters.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"62 ","pages":"Article 102726"},"PeriodicalIF":7.7,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146024280","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Wang Zhang , Chun Yan , Yingdan Zhu , Bowen Zhang , Dong Liu , Haibing Xu , Gang Chen , Yunpeng Xu
{"title":"Effects of sizing agents on the interfacial heat resistance of CF/PEKK composites","authors":"Wang Zhang , Chun Yan , Yingdan Zhu , Bowen Zhang , Dong Liu , Haibing Xu , Gang Chen , Yunpeng Xu","doi":"10.1016/j.coco.2026.102723","DOIUrl":"10.1016/j.coco.2026.102723","url":null,"abstract":"<div><div>The interfacial heat resistance of carbon fiber reinforced polyether ketone ketone (CF/PEKK) composites plays a critical role in their high-temperature applications. In this study, polyetherimide (PEI), polysulfone (PSF) and polyethersulfone (PES) resins were selected as sizing agents for carbon fibers to investigate their effects on the interfacial heat resistance of CF/PEKK composites. Results show that all three sizing resins possess high thermal stability suitable for CF/PEKK composite processing and effectively enhance the interfacial shear strength (IFSS). PEI resin exhibited the best compatibility with the PEKK matrix. The PEI-sized CF/PEKK composites achieved the highest interfacial properties, with an IFSS value of 100.5 MPa, representing a 26.6 % improvement over desized composites. Analysis of interfacial heat resistance further revealed that composites modified with 1 wt% PEI retained the highest IFSS of 74.4 MPa at 140 °C, which is 31.7 % higher than that of desized composites under the same conditions. This enhancement primarily stems from the good compatibility and high heat resistance, which simultaneously improve the interfacial adhesion strength and thermal stability of CF/PEKK composites. These advantages help broaden the application prospects of CF/PEKK composites in high-temperature environments.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"62 ","pages":"Article 102723"},"PeriodicalIF":7.7,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146024287","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Zongyun Shao , Xuejiao Xia , Min Huang , Yaoyan Zhuang , Ruibang Xie , Fei Han , Yuanwei Yan
{"title":"Synergistic alumina particles and low-magnetic-field-induced vertical carbon fiber arrays for enhanced thermal conductivity and resilience of thermal interface materials","authors":"Zongyun Shao , Xuejiao Xia , Min Huang , Yaoyan Zhuang , Ruibang Xie , Fei Han , Yuanwei Yan","doi":"10.1016/j.coco.2026.102731","DOIUrl":"10.1016/j.coco.2026.102731","url":null,"abstract":"<div><div>Currently, advanced thermal interface materials (TIMs) with both high thermal conductivity and elasticity are required to meet the heat dissipation needs of cutting-edge electronic devices. Therefore, constructing an ordered thermal conductive structure without compromising mechanical resilience is an attractive strategy for developing advanced TIMs. Herein, we propose a promising orientation strategy based on the synergistic interaction of magnetic fields and gravity to construct a tightly packed vertical CFs arrays within the silicone rubber (SR) matrix, where the alignment of CFs along the magnetic field is assisted by gravity. Furthermore, by incorporating spherical alumina particles to bridge the inter-fiber gaps while maintaining the integrity of CFs arrays, a defect-minimized thermal network has been created to significantly enhance both the thermal conductivity and mechanical properties of the composites. The prepared composite possesses a superior thermal conductivity of 30.8 W m<sup>−1</sup> K<sup>−1</sup>, a low hardness of Shore 00 53, and an outstanding compressibility of 42.3 % under 40 psi. This work establishes a paradigm-shifting strategy for scalable production of next-generation TIMs, offering a robust solution to solve thermal management challenges in high-power electronics, optoelectronics, and energy storage systems.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"62 ","pages":"Article 102731"},"PeriodicalIF":7.7,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146169980","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"In-situ MoS2-reinforced aramid nanofiber aerogels with integrated photothermal–phase-change coupling for adaptive thermal management","authors":"Zhuguang Nie, Xiaoli Guo, Jinqiu Chen, Xiaonan Yang, Jiahui Chen, Rumin Wang, Shuhua Qi","doi":"10.1016/j.coco.2026.102745","DOIUrl":"10.1016/j.coco.2026.102745","url":null,"abstract":"<div><div>Multifunctional aerogels, as ultralight, high-porosity three-dimensional network materials, achieve multiple functions such as mechanical enhancement, thermal management, photothermal conversion, and energy storage through molecular-level regulation, interface engineering, and multi-component composite design, for overcoming the brittleness and single-function limitations of traditional aerogels. This study introduces a novel fabrication of MoS<sub>2</sub>/aramid nanofiber (ANF) composite aerogels (ANFM) through in-situ hydrothermal growth of MoS<sub>2</sub> nanosheets on ANF skeleton, integrated with polyethylene glycol (PEG) as phase-change material (PCM) to yield ANFM-PCM composites for adaptive thermal management. MoS<sub>2</sub> nanosheets by reinforcing the pore network delay buckling instability, forming and leveraging C-Mo/N-Mo interfacial bonds to achieve efficient load transfer, enhances mechanical properties of ANFM composite aerogels from 228.25 to 501.1 kPa. ANFM-PCM composites preserve the intrinsic phase-transition behavior of PEG with maximum latent heat of 177.14 J/g, offering tunable latent heat and strong cycling durability, 92.4% enthalpy retention after 100 cycles. Moreover, their thermal decomposition temperatures all exceed 350 °C. Benefiting from high light absorption and broadband response of MoS<sub>2</sub>, the composites achieve efficient light-to-heat conversion synergized with phase-change storage for adaptive thermal regulation. Even if under a light intensity of 0.1 W/cm<sup>2</sup>, the absolute temperature difference between ANFM-PCM and the cold environment exceeds 90 °C. These lightweight, mechanically robust aerogels hold strong potential for intelligent thermal management, infrared stealth, and solar-energy storage applications.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"62 ","pages":"Article 102745"},"PeriodicalIF":7.7,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146170044","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Zhongwei Fang , Jianhua Zheng , Shun Chen , Yang Jin , Zengyuan Pang , Diantang Zhang
{"title":"Deep learning-based Meso-scale reconstruction and bending failure mechanism of spreading fabric/felt needle C/SiC laminated composites","authors":"Zhongwei Fang , Jianhua Zheng , Shun Chen , Yang Jin , Zengyuan Pang , Diantang Zhang","doi":"10.1016/j.coco.2026.102708","DOIUrl":"10.1016/j.coco.2026.102708","url":null,"abstract":"<div><div>Needled carbon/silicon carbide (C/SiC) composites are widely used in the field of aerospace. However, reducing porosity and enhancing mechanical properties remain critical challenges. To address these challenges, this paper investigates the bending damage behavior and failure mechanisms of spreading fabric/felt needled C/SiC laminated composites (SFNPCS). Three kinds of SFNPCS, SFNP-15Gs (needle depth: 15 mm, hook type: G), SFNP-15Fs (needle depth: 15 mm, hook type: F), and SFNP-11Gs (needle depth: 11 mm, hook type: G), were innovatively designed and prepared. Then, a deep learning–based yarn segmentation method was employed to achieve a reconstruction of the meso-scale model of SFNPCS. Finally, the bending properties and progressive damage behavior of SFNPCS were investigated through a combined experimental and numerical approach. The results demonstrated that the densification efficiencies of SFNP-15Gs, SFNP-15Fs, and SFNP-11Gs are 572.58 %, 566.87 %, and 552.80 %, respectively, with SFNP-15Gs achieving 1.5 % and 3.6 % higher efficiency than SFNP-15Fs and SFNP-11Gs due to its G-type needles, increased fiber coverage, and deeper needling. SFNP-15Gs also exhibits the highest bending strength (162.63 MPa), 6.20 % and 18.06 % higher than SFNP-15Fs and SFNP-11Gs, respectively. The primary failure mechanisms of SFNPCS include matrix fracture, fiber pull-out, interface debonding, and varying degrees of delamination.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"62 ","pages":"Article 102708"},"PeriodicalIF":7.7,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145915491","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Qirui Sun , Yuqi Zhai , Zhongyi Li , Xin Ye , Liqun Zhang , Yongpeng Wang
{"title":"Efficient electromagnetic wave absorption of porous 3D heterogeneous composites based on Fe3O4 / waste–tyre–recycled carbon black (RCB) hybrids","authors":"Qirui Sun , Yuqi Zhai , Zhongyi Li , Xin Ye , Liqun Zhang , Yongpeng Wang","doi":"10.1016/j.coco.2026.102728","DOIUrl":"10.1016/j.coco.2026.102728","url":null,"abstract":"<div><div>In response to the urgent need for sustainable waste tire management, this study employs pyrolyzed recycled carbon black (RCB) as a functional building block to construct a 3D multi–interface heterogeneous RCB/Fe<sub>3</sub>O<sub>4</sub> porous framework architecture via a facile hydrothermal method, thereby achieving high–value conversion of waste resources. Benefiting from its high specific surface area and multi–component ash–rich structure, RCB effectively anchors Fe<sup>3+</sup>/Fe<sup>2+</sup> ions and promotes the in situ formation of Fe<sub>3</sub>O<sub>4</sub> crystal nuclei. By adjusting the RCB content, controlled growth of Fe<sub>3</sub>O<sub>4</sub> nanoparticles, precise construction of heterogeneous interfaces, and systematic optimization of electromagnetic properties were accomplished. The Key synergistic advantages include: The key synergistic advantages include: (i) protection of Fe<sub>3</sub>O<sub>4</sub> formation and suppression of aggregation enabled by intrinsic SiO<sub>2</sub> sites and the multi–interface structure; (ii) enhancement of magnetic loss contributed by the irregular morphology of RCB; (iii) optimization of electromagnetic parameters through the synergistic interaction among Fe<sub>3</sub>O<sub>4</sub>, ash-rich RCB, and the 3D porous framework, resulting in superior impedance matching. The composite provides multiple electromagnetic wave transmission paths, while its high surface area and localized defects strengthen interfacial/dipole polarization losses. Furthermore, interconnected RCB microspheres establish an efficient conductive network, thereby enhancing conductive loss. These multi-scale synergies yield exceptional microwave absorption: a minimum reflection loss of −40 dB at 2.5 mm thickness and a maximum effective absorption bandwidth of 3.22 GHz at 1.5 mm thickness. This work provides a new strategy for the high–value resource utilization of waste tire-derived pyrolytic carbon black and demonstrates its potential application in high-performance electromagnetic wave absorption materials.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"62 ","pages":"Article 102728"},"PeriodicalIF":7.7,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146024306","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pengjie Gao , Hanghai Wang , Xunxun Zhang , Changsong Xie , Heng Zhang , Linjia Zhu , Weiwei Ming , Jinyang Xu , Qinglong An , Ming Chen
{"title":"A novel gradual reaming method for large-diameter hole machining of four-layer CFRP/Ti stacks","authors":"Pengjie Gao , Hanghai Wang , Xunxun Zhang , Changsong Xie , Heng Zhang , Linjia Zhu , Weiwei Ming , Jinyang Xu , Qinglong An , Ming Chen","doi":"10.1016/j.coco.2026.102699","DOIUrl":"10.1016/j.coco.2026.102699","url":null,"abstract":"<div><div>In next-generation wide-body aircraft, CFRP/Ti stack structures constitute essential components at critical airframe junctions, including flat-tail and wing–body docking regions. With the increasing size of aircraft, these stacks demand larger and deeper holes to ensure sufficient junction strength, which presents substantial challenges for conventional automated machining. Traditional drilling techniques often fail to satisfy the stringent requirements for tool robustness and hole integrity when processing large-diameter holes in multi-layer CFRP/Ti stacks. To overcome these limitations, this study introduces a novel large-diameter hole machining approach based on a gradual reaming strategy tailored for four-layer Ti/CFRP/CFRP/Ti stacks. Specifically, a series of specialized reaming tools featuring helix-stepped geometries is developed to enhance tool strength. Furthermore, two reaming strategies—distinguished by large and small material removal volumes—are proposed to ensure superior hole quality. Through experiments, the hole formation process, cutting-force fluctuations, and chip-fracture behavior are systematically analyzed to elucidate the underlying mechanisms of large-diameter reaming in multilayer CFRP/Ti stacks. The experimental findings reveal that the large removal volume strategy generates excessive cutting forces and torque, thereby compromising hole quality. In contrast, the small removal volume strategy sustains machining efficiency while improving hole quality by 85.6 %, thereby effectively fulfilling industrial requirements.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"62 ","pages":"Article 102699"},"PeriodicalIF":7.7,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146024307","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yulei Li , Xin Zhang , Jun Wang , Xin Li , Dongxu Hui , Shaodi Wang , Yifan Liang , Bo Li , Shengyin Zhou , Shufeng Li
{"title":"Stimulating strain hardening ability to achieve excellent ductility for aluminum matrix composites by activating hetero-deformation induced hardening through designing grain partition","authors":"Yulei Li , Xin Zhang , Jun Wang , Xin Li , Dongxu Hui , Shaodi Wang , Yifan Liang , Bo Li , Shengyin Zhou , Shufeng Li","doi":"10.1016/j.coco.2026.102739","DOIUrl":"10.1016/j.coco.2026.102739","url":null,"abstract":"<div><div>In this study, a bimodal heterostructure TiB<sub>2</sub>/Al composites with designable coarse/fine grain partition were fabricated by combining multi-stage ball milling with a powder assembly process during powder metallurgy. The effects of different coarse/fine-grained fractions on the microstructure and mechanical properties of heterostructure composites were systematically investigated. The results demonstrate that the bimodal heterostructure can induce additional hetero-deformation induced (HDI) hardening compared to the fine-grained homogenous structure composites, effectively enhancing dislocation storage of coarse-grained zones and plastic deformation capability of fine-grained zones. Thereby promoting the strength-ductility synergy of the composites. When the coarse-grained mass fraction reaches 25 wt% (HS25), the elongation to failure of the bimodal heterostructure TiB<sub>2</sub>/Al composites increases from 8.1% for homogenous structure composites to 13%. Moreover, its strength rises by 11% compare to the heterostructure composites with 50 wt% coarse grain (HS50) without compromising the ductility. It provides an inspired strategy for developing Al matrix composites with coordinated matching of strength and ductility.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"62 ","pages":"Article 102739"},"PeriodicalIF":7.7,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146169981","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Synergistic photocatalytic and antibacterial properties of Nd2O3/Sm2O3 nanocomposites for wastewater treatment and biomedical applications","authors":"Divya Selvakumar , Wenbin Zhou","doi":"10.1016/j.coco.2026.102734","DOIUrl":"10.1016/j.coco.2026.102734","url":null,"abstract":"<div><div>Widely used synthetic organic dyes pose severe environmental and health risks due to their stability and resistance to degradation, while conventional metal oxide photocatalysts often exhibit limited efficiency in water remediation. Motivated by this challenge and the need for alternative photocatalytic materials, Sm<sub>2</sub>O<sub>3</sub> nanoparticles (NPs), Nd<sub>2</sub>O<sub>3</sub> NPs, and Nd<sub>2</sub>O<sub>3</sub>/Sm<sub>2</sub>O<sub>3</sub> nanocomposites (NCs) were synthesized and evaluated for their photocatalytic degradation of commercially obtained dyes—Methylene Blue (MB), Rhodamine B (RhB), Methyl Orange (MO), Methyl Red (MR), and Congo Red (CR)—under UV irradiation. The Nd<sub>2</sub>O<sub>3</sub>/Sm<sub>2</sub>O<sub>3</sub> NCs possess a larger specific surface area (SSA, 42.38 m<sup>2</sup>/g) as determined by BET analysis, enhancing active site availability and charge carrier mobility, while optical studies showed a lower band gap (4.21 eV), enabling improved photocatalytic performance. XPS confirmed Sm<sup>3+</sup> and Nd<sup>3+</sup> states, with distinct O 1s, Sm 3d, and Nd 3d peaks, verifying the formation of NCs. The TEM and SEM analyses of Nd<sub>2</sub>O<sub>3</sub>/Sm<sub>2</sub>O<sub>3</sub> NCs showed spherical particles with a porous morphology, with average particle sizes of ∼91 nm and ∼0.048 μm, respectively, which in turn supports enhanced charge transfer and photocatalytic activity. Consequently, the Nd<sub>2</sub>O<sub>3</sub>/Sm<sub>2</sub>O<sub>3</sub> NCs achieved higher degradation efficiencies 83.21 % (MB), 96.61 % (RhB), 97.92 % (MO), 97.55 % (MR), and 85.55 % (CR), than individual NPs, with faster reaction rate constants and shorter half-lives, while recyclability tests confirmed their stability and reusability. The increased photocatalytic efficiency of Nd<sub>2</sub>O<sub>3</sub>/Sm<sub>2</sub>O<sub>3</sub> NCs, resulting from their larger surface area, reduced band gap, and improved charge separation, suggests their potential for wastewater treatment applications. Their radical scavenger experiments revealed that O<sub>2</sub>∗ radical plays a major role in MB and RhB degradation, whereas h<sup>+</sup> is more influential in the degradation of MO, MR, and CR. Furthermore, antibacterial studies against the bacterial strains <em>Escherichia coli</em> (<em>E. coli</em>) and <em>Staphylococcus aureus</em> (<em>S. aureus</em>) demonstrated superior antibacterial performance for Nd<sub>2</sub>O<sub>3</sub>/Sm<sub>2</sub>O<sub>3</sub> NCs compared to individual oxides, emphasizing their potential for biomedical applications.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"62 ","pages":"Article 102734"},"PeriodicalIF":7.7,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146169983","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}