Yue Qin, Boda Zhu, Linhong Li, Yandong Wang, Maohua Li, Zhenbang Zhang, Yiwei Zhou, Rongjie Yang, Kang Xu, Tao Cai, Kazuhito Nishimura, Bo Li, Yuezhong Wang, Cheng-Te Lin, Lifen Deng, Hainam Do, Nan Jiang, Jinhong Yu
{"title":"Dual-functional carbon material possessing light absorption and heat conduction & energy storage","authors":"Yue Qin, Boda Zhu, Linhong Li, Yandong Wang, Maohua Li, Zhenbang Zhang, Yiwei Zhou, Rongjie Yang, Kang Xu, Tao Cai, Kazuhito Nishimura, Bo Li, Yuezhong Wang, Cheng-Te Lin, Lifen Deng, Hainam Do, Nan Jiang, Jinhong Yu","doi":"10.1007/s42114-025-01371-5","DOIUrl":"10.1007/s42114-025-01371-5","url":null,"abstract":"<div><p>Solar energy has become a prominent and viable green alteration due to its accessibility, low pollution levels, and sustainable features. Recent advancements have highlighted the importance of developing photothermal materials that utilize polymer phase-change materials, which are critical for enhancing photothermal conversion efficiency. Through comprehensive simulation analyses of the model design, we have developed a novel material featuring a dual-function structure to meet the increasing demand for efficient energy conversion and storage in solar applications. SiCNWs aerogels were successfully prepared using the directional freeze-drying method, with carbon nanowall and nano-crystalline diamonds deposited on the top and bottom sides, respectively, by chemical vapor deposition. With the infusion of polyethylene glycol into the diamond side, a novel dual-function material, CNW&ND@S-A/PEG, was successfully prepared. The top layer of the dual-function material has light absorption close to 92% in the visible light band, while the bottom layer has a thermal conductivity and enthalpy of 1.13 W/(m·K) and 157.0 J/g, which are 706% more and 16.46% less than that of pure PEG, respectively. Our work elucidates the significant role of the diamond skeleton in enhancing thermal conduction, as substantiated by theoretical and finite element calculations. The dual-function material’s adaptability was rigorously validated by simulating practical application scenarios across a spectrum of thermal conditions, including standard, high, and low temperatures. These findings underscore the material’s efficacy in providing thermal protection for electronic devices. Consequently, the results offer a robust framework for developing photothermal materials and introduce an innovative paradigm for thermal management strategies in electronic applications, particularly under extreme environmental conditions.</p></div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"8 4","pages":""},"PeriodicalIF":21.8,"publicationDate":"2025-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s42114-025-01371-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145144799","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Ternary deep eutectic solvent-mediated one-pot solvothermal synthesis of biocarbon sheet-supported La2(CO3)3 nanowire with antibacterial activity for advanced phosphate adsorption","authors":"Lijun Yang, Yiyi Shen, Xiaotong He, Zhixiang Xu, Feng Shen, Lichun Dai","doi":"10.1007/s42114-025-01397-9","DOIUrl":"10.1007/s42114-025-01397-9","url":null,"abstract":"<div><p>Biocarbon-supported lanthanum-based materials have garnered extensive attention in phosphate adsorption. Among diverse La species, lanthanum carbonate (LC) possesses balanced properties in phosphate affinity, biocompatibility, and stability. However, direct one-pot synthesis of positively charged biocarbon and simultaneous assembly of LC on the biocarbon is challenging. Herein, a ternary deep eutectic solvent (DES) composed of glucose, urea, and LaCl<sub>3</sub> was applied as the precursor and medium for the one-pot solvothermal synthesis of biocarbon sheet (BCS)-supported La<sub>2</sub>(CO<sub>3</sub>)<sub>3</sub> nanowire (BCS-LC). The as-prepared BCS-LC possesses a 2D lamellar structure with dispersed La<sub>2</sub>(CO<sub>3</sub>)<sub>3</sub> nanowire. The as-prepared BCS-LC is highly efficient in removing phosphorus from biogas effluent (from 83 to < 0.05 mg/L, around 99.9% removal) and natural pond water (from 5.1 to < 0.05 mg/L, > 99% removal) at 1 g/L dosage, which is superior for phosphate adsorption from practical solutions with complex co-existing substances or low phosphate concentration. The phosphate adsorption by BCS-LC is dominated by ligand exchange-induced inner-sphere complexation. DFT calculations further validate the favorable role of nitrogen-containing functional groups on the biocarbon sheet for enhancing affinity to phosphate anions. Furthermore, attributed to the nanowire morphology of LC, the as-prepared BCS-LC is high-efficient in inactivating <i>S. aureus</i> (with a 99.99% antibacterial rate) in the solution. Finally, this study developed a novel strategy by using the ternary DES as the precursor and medium for the synthesis of lanthanum-based adsorbent with antibacterial activity for advanced phosphate adsorption.</p></div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"8 4","pages":""},"PeriodicalIF":21.8,"publicationDate":"2025-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s42114-025-01397-9.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145144315","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Research progress of wearable electrochemical biosensors based on metal–organic frameworks (MOFs) for sweat detection","authors":"Wenhao Dong, Xueye Chen","doi":"10.1007/s42114-025-01357-3","DOIUrl":"10.1007/s42114-025-01357-3","url":null,"abstract":"<div><p>Wearable biosensors provide a new approach for personal health monitoring, and sweat detection has attracted much attention due to its advantages such as easy sample collection and continuous monitoring. Metal–organic frameworks (MOFs), as emerging materials, demonstrate unique potential in the field of sweat detection. This article reviews the research progress of wearable electrochemical biosensors for sweat detection, detailing common sensitive materials (including bioenzymes, bioantibodies, molecularly imprinted polymers, and metal nanomaterials) and their detection principles. It summarizes the concentration ranges of biomarkers in sweat, sensing strategies, and health impacts.The advantages and disadvantages of MOFs for sweat detection are thoroughly discussed, along with common preparation methods. To address the low conductivity of MOFs, this paper summarizes common approaches combining MOFs with conductive materials, with a focus on integrating MOFs with hydrogels. Additionally, it describes the detection applications of MOF-based sweat sensors for biomarkers such as glucose, lactate, and cortisol. Finally, prospects for the development of MOF-based wearable sweat sensors are presented, suggesting the need to improve detection sensitivity and anti-interference capabilities, integrate more functional modules, develop new energy devices, and promote clinical applications and standardized detection.</p></div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"8 4","pages":""},"PeriodicalIF":21.8,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s42114-025-01357-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145144541","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Menatalla Ashraf Saad, Eman Radi Sadik, Basma Mohamed Eldakiky, Elsayed Zakaria Elashtoukhy, Taghreed Mohamed Mohamed Zewail
{"title":"Recent developments in the application of hydrogels as draw agents in the forward osmosis desalination process","authors":"Menatalla Ashraf Saad, Eman Radi Sadik, Basma Mohamed Eldakiky, Elsayed Zakaria Elashtoukhy, Taghreed Mohamed Mohamed Zewail","doi":"10.1007/s42114-025-01385-z","DOIUrl":"10.1007/s42114-025-01385-z","url":null,"abstract":"<div><p>The shortage of water resources has been one of the most worrying world crises. Thus, one promising way to address the need for water is desalination. In recent years, forward osmosis has been an emerging technique in water treatment applications, especially desalination. This is due to the enhanced quality of water production, which resulted from reduced fouling propensity and high salt rejection. However, the selection of an ideal draw agent for the forward osmosis desalination process is still a challenging issue. Draw agents for forward osmosis desalination should be distinguished with their high osmotic pressure, low reverse solute flux, and facile regeneration. Lately, hydrogels have offered some advantages, such as negligible reverse solute flux and their capability to capture large amounts of water. These merits made different types of hydrogels, like thermoresponsive, electroresponsive, magnetic responsive, gas-responsive, multi-responsive, green, and other hydrogels’ classes, be recognized as draw agents for forward osmosis desalination. In this review, we will describe how hydrogels could be applied as drawing agents for the forward osmosis desalination approach and their operational advantages and drawbacks. In addition, we will display and discuss the recent research output that aimed to improve the performance of hydrogels as draw agents for the forward osmosis desalination.\u0000</p></div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"8 4","pages":""},"PeriodicalIF":21.8,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s42114-025-01385-z.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145143713","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Nithin Chandran B.S, Anupma Thakur, Srinivasa Kartik Nemani, Niraja Moharana, Christian Paul Hardy Scott, K.C. Hari Kumar, Ravi Kumar, Babak Anasori
{"title":"MXene-derived TiB2 formation in B4C at high temperatures","authors":"Nithin Chandran B.S, Anupma Thakur, Srinivasa Kartik Nemani, Niraja Moharana, Christian Paul Hardy Scott, K.C. Hari Kumar, Ravi Kumar, Babak Anasori","doi":"10.1007/s42114-025-01387-x","DOIUrl":"10.1007/s42114-025-01387-x","url":null,"abstract":"<div><p>Two-dimensional (2D) MXenes are nanometer-thick sheets of transition metal carbides, nitrides, or carbonitrides with high-temperature capabilities. MXenes can be used as nanofillers and functional additives in ceramic hybrids, enhancing sintering and mechanical and electrical properties. In this study, we systematically investigate the incorporation of titanium carbide (Ti<sub>3</sub>C<sub>2</sub>T<sub><i>x</i></sub>) MXene into micron-sized (~ 6 μm) boron carbide (B<sub>4</sub>C) using a one-step electrostatic self-assembly method. We tuned the zeta potential of B<sub>4</sub>C and Ti<sub>3</sub>C<sub>2</sub>T<sub><i>x</i></sub> MXene solutions, gradually added B<sub>4</sub>C into the MXene solution, and prepared green bodies with 1 to 10 vol.% Ti<sub>3</sub>C<sub>2</sub>T<sub><i>x</i></sub>. We examined MXene phase stability, reactions, and phase transformation in B<sub>4</sub>C via direct current spark plasma sintering at 1925 °C with a pressure of 70 MPa in a vacuum. To understand the reaction pathways, we conducted stepwise sintering from 800 °C to 1800 °C in 200 °C increments. X-ray diffraction and scanning electron microscopy results revealed that Ti<sub>3</sub>C<sub>2</sub>T<sub><i>x</i></sub> reacts with B<sub>4</sub>C at ~ 1200 °C to form TiB<sub>2</sub>, with complete conversion at 1800 °C, resulting in a TiB<sub>2</sub>-B<sub>4</sub>C structure. For samples with 4 vol.% MXene or higher, B<sub>2</sub>O<sub>3</sub> formed above 1200 °C due to MXene oxygen terminations and disappeared above 1800 °C. The overall oxygen content in MXene-containing samples was lower than in B<sub>4</sub>C sintered without MXene, indicating its reducing nature as a 2D carbide. MXene also acts as a sintering additive and the relative density was increased by increasing the MXene content, achieving 99% with 10 vol.% MXene. The measured hardness values were 20 ± 1.6 GPa and 41 ± 0.8 GPa for B<sub>4</sub>C and B<sub>4</sub>C with 10 vol.% MXene Ti<sub>3</sub>C<sub>2</sub> samples, respectively. This trend indicates that increasing Ti<sub>3</sub>C<sub>2</sub>T<sub><i>x</i></sub> MXene content (1–10 vol.%) in the B<sub>4</sub>C matrix enhances hardness due to the formation of TiB<sub>2</sub> phases, which improves densification and reinforces the B<sub>4</sub>C matrix. Compared to traditional bulk TiC, 2D MXene sheets provide a larger surface area and uniform coverage of B<sub>4</sub>C particles, lowering diffusion energy and enhancing sintering rates. This study demonstrates a new approach to using MXene as a nanometer-thick additive to form uniformly distributed TiB<sub>2</sub> in B<sub>4</sub>C to enhance its structural properties.</p></div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"8 4","pages":""},"PeriodicalIF":21.8,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s42114-025-01387-x.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145143827","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Seul-A Park, Hyeonyeol Jeon, Hojung Kwak, Jun Mo Koo, Dongyeop X. Oh, Jeyoung Park
{"title":"High-performance transparent polysulfone nanocomposites enhanced with masterbatch-based aramid nanofibers for improved toughness and flame retardancy","authors":"Seul-A Park, Hyeonyeol Jeon, Hojung Kwak, Jun Mo Koo, Dongyeop X. Oh, Jeyoung Park","doi":"10.1007/s42114-025-01392-0","DOIUrl":"10.1007/s42114-025-01392-0","url":null,"abstract":"<div><p>In the field of plastic additives, the development of multi-functional nanofillers that reinforce strength and toughness while simultaneously providing flame-retardant properties remains rare. In this study, we demonstrate that aramid nanofibers (ANFs) can serve as promising candidates for industrially accessible melt-compounding processing. An ANF-filled polysulfone (PSU) masterbatch (1 wt%) was prepared via in situ polycondensation and subsequently melt-diluted with commercial PSU (up to 20-fold: 0.05 wt%) to produce transparent nanocomposites with improved mechanical and flame-retardant properties. The nanocomposites exhibited 2.4- and 1.3-fold increases in tensile toughness and impact strength, respectively, compared to that of neat PSU. Cone calorimeter experiments conducted under a radiative heat flux of 50 kW m<sup>−2</sup>, simulating actual fire conditions, demonstrated that the nanocomposite containing 0.1 wt% ANF did not ignite and exhibited near-zero total smoke production, indicating exceptional flame inhibition and minimal smoke hazards. In contrast, neat PSU showed substantial smoke emission and complete combustion, reflecting its vulnerability to fire risks. Even under a flame temperature of 1300 °C, the self-extinguishing time of nanocomposites drastically decreased from 3–2 min to 3–0 s, depending on the ANF content. The highly dispersed ANFs contributed to flame retardancy via a dual mechanism—releasing non-combustible gases that inhibit flame propagation in the gas phase and promoting the formation of a protective char layer that insulates against heat transfer. These transparent, super engineering plastic nanocomposites represent a promising solution for advanced fire-fighting applications.</p><h3>Graphical Abstract</h3><p>Aramid nanofiber-reinforced polysulfone nanocomposites synthesized via scalable melt-compounding demonstrate superior strength, toughness, and rapid self-extinguishing properties, making them ideal materials for fire-resistant and safety–critical applications.\u0000</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"8 4","pages":""},"PeriodicalIF":21.8,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s42114-025-01392-0.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145143741","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ting Li, Junping Ma, Yidan Wang, Mi Chen, Qian Huang, Long Zhang, Bo Lei
{"title":"Bioactive nanoglass-MXene heterojunction with enzymatic-thermal coupling for MRSA-infected wound therapy","authors":"Ting Li, Junping Ma, Yidan Wang, Mi Chen, Qian Huang, Long Zhang, Bo Lei","doi":"10.1007/s42114-025-01354-6","DOIUrl":"10.1007/s42114-025-01354-6","url":null,"abstract":"<div><p>Drug-resistance bacteria infected wound repair remains a significant challenge in skin surgery treatment, posing infection-induced injury, oxidative stress, and impaired angiogenesis. Herein, a multifunctional bioactive heterojunction nanoplatform with integrated nanoenzymatic and microthermal activity for treating infected wounds was reported. The nanoplatform was constructed by immobilizing bioactive nanoglass vitrified ε-poly-L-lysine modified MXene nanosheets (BM), creating BM nanosystems with microthermal, antimicrobial, immunoregulated, anti-inflammatory, antioxidant, and angiogenesis-promoting effects. The BM significantly inhibited the growth of various bacteria in vitro, while demonstrating good cytocompatibility and hemocompatibility. BM displayed robust antioxidant enzyme properties including superoxide dismutase (SOD) and catalase (CAT) activities. BM showed strong anti-inflammatory activity through promoting the transition of M1 to M2 macrophages phenotype. BM combined with enzyme activity and microthermal therapy can promote vascular regeneration by activating the classical PI3K/Akt pathway through initiating heat stress in vascular endothelial cells, trigger the cell proliferation and migration by activating the cell cycle and the a6b1 and a6b4 integrin signaling pathways, and improve drug-resistance (MRSA)-infected wound repair through anti- infection, anti-inflammatory and promotion of angiogenesis. Overall, our findings suggest a feasible strategy to combine the intrinsic nanoenzyme activity and vascular regeneration-promoting properties of the materials with microthermal therapy, facilitating tissue regeneration and functional recovery in MRSA-infected wounds.</p></div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"8 4","pages":""},"PeriodicalIF":21.8,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s42114-025-01354-6.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145143770","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Monunith Anithkumar, Asokan Poorani Sathya Prasanna, Nagamalleswara Rao Alluri, Thanjan Shaji Bincy, Kwi-Il Park, Sang-Jae Kim
{"title":"Multilayered piezo-tribo hybrid nanogenerator integrated with machine learning for advanced sign language to speech system","authors":"Monunith Anithkumar, Asokan Poorani Sathya Prasanna, Nagamalleswara Rao Alluri, Thanjan Shaji Bincy, Kwi-Il Park, Sang-Jae Kim","doi":"10.1007/s42114-025-01386-y","DOIUrl":"10.1007/s42114-025-01386-y","url":null,"abstract":"<div><p>Multilayer structured piezo-triboelectric hybrid nanogenerators (m-PT-HNG) are emerging as promising candidates for next-generation wearable sensors owing to their ability to harvest energy with high sensitivity and enhanced output. In this work, we report a reliable and sensitive multilayered intrinsic piezo-tribo hybrid nanogenerator (m-PT-HNG) based on a multilayer piezoelectric composite nanogenerator (m-PCNG) architecture combined with triboelectric functionality. The m-PCNG fabricated via parallelly connected multilayers demonstrate significant enhancement of output performance compared to single-layer PCNG. The ferroelectric, piezoelectric performance of Cu<sub>2</sub>O-doped 0.3Ba<sub>0.7</sub>Ca<sub>0.3</sub>TiO<sub>3</sub>-0.7BaSn<sub>0.12</sub>Ti<sub>0.88</sub>O<sub>3</sub> (BCST-0.01Cu<sub>2</sub>O) ceramic fillers was systematically optimized by applying various piston loads (10 to 50 kN) and an electric field of 25 kV/cm. The resulting intrinsically coupled m-PT-HNG produces an instantaneous power density of 85.36 mW/m<sup>2</sup> at 200 MΩ. To demonstrate practical utility, a sign language recognition smart glove (SLR-SG) was developed integrating the five m-PT-HNGs, enabling accurate sign language classification through a machine learning algorithm and real-time sign language to speech conversion via a mobile application.\u0000</p></div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"8 4","pages":""},"PeriodicalIF":21.8,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s42114-025-01386-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145143931","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Xudong Hou, Minghao Zhang, Qifa Yao, Yeping Ren, Lin Zhong, Changlin Li, Haohao Lv, Hanyu Chen, Zuting Wei, Fanzhi Yang, Wei Yang, Min Xia, Yunjun Luo
{"title":"Multifunctional 2D fluorinated coating and bioinspired interface on HMX for simultaneous desensitization and combustion enhancement","authors":"Xudong Hou, Minghao Zhang, Qifa Yao, Yeping Ren, Lin Zhong, Changlin Li, Haohao Lv, Hanyu Chen, Zuting Wei, Fanzhi Yang, Wei Yang, Min Xia, Yunjun Luo","doi":"10.1007/s42114-025-01376-0","DOIUrl":"10.1007/s42114-025-01376-0","url":null,"abstract":"<div><p>High sensitivity of energetic oxidizers and difficulties in activating passivated aluminum during the ignition are two serious obstacles for safe and efficient application of aluminized explosives. Herein, a safe and highly reactive HMX@PDA@FG (HPF) dual-shell oxidizer was constructed through functionalizing octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine (HMX) core with a bio-enhanced interface polydopamine (PDA) and a two-dimensional (2D) fluorine source fluorinated graphene (FG) via bionic and self-assembly strategies. The synergistic integration of FG and PDA coatings achieves a remarkable reduction in HMX sensitivity (the impact energy increase from 7 to 28 J and friction load weight increase from 108 to 160 N). The 2D structure of FG notably enhances heat transfer within the system and leads to more rapid and concentrated decomposition of HMX. Furthermore, HPF oxidizers feature significant combustive activation effects for nano-aluminum due to high fluorine content of FG. Aluminized mixture HPF-10/n-Al exhibits superior combustion reactivity and energy output. The combustion heat of HPF-10/n-Al reaches 14,770.8 kJ/g, nearly 1000 kJ/g higher than HMX/n-Al, while the peak pressure and pressurization rate are approximately 1.5 and 4.9 times higher than HMX/n-Al. Hence, modifying multifunctional fluorinated graphene coating and bioinspired interface polydopamine on HMX shows great potential in enhancing both safety and energetic performance of aluminized explosives.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"8 4","pages":""},"PeriodicalIF":21.8,"publicationDate":"2025-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s42114-025-01376-0.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145143530","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yujin Lee, Kanghyun Lee, Junhyeop Shin, Seyoung Choi, Seyeon Kim, Geon Woo Kim, Abraham Seo, Jeong Woo Han, Tae Yong Kim, Inho Nam, Soomin Park
{"title":"Sustained virucidal functionality in practical-scale polymer matrices enabled by visible light-responsive CuxO–TiO2 photocatalyst","authors":"Yujin Lee, Kanghyun Lee, Junhyeop Shin, Seyoung Choi, Seyeon Kim, Geon Woo Kim, Abraham Seo, Jeong Woo Han, Tae Yong Kim, Inho Nam, Soomin Park","doi":"10.1007/s42114-025-01383-1","DOIUrl":"10.1007/s42114-025-01383-1","url":null,"abstract":"<div><p>The COVID-19 pandemic has highlighted the urgent need for durable and highly effective virucidal materials. This study presents a breakthrough by integrating Cu<sub><i>x</i></sub>O–TiO<sub>2</sub> photocatalysts into widely used polymer matrices, such as silicone, polypropylene, and air filters, to achieve sustained antiviral functionality with practical applicability. Unlike previous studies that primarily focused on the antiviral efficacy of Cu-based photocatalysts, our study provides atomic-level insights into the regeneration of virucidal Cu<sub><i>x</i></sub>O (<i>x</i> > 1) on TiO<sub>2</sub>, strongly influenced by the local atomic structures of Cu<sub><i>x</i></sub>O, particularly when Cu exhibits a low Cu–O coordination number (~ 3), as confirmed by X-ray absorption spectroscopy. This regeneration process is essential for high virucidal performance via interfacial charge transfer (IFCT) mechanisms. Our results show that Cu<sub><i>x</i></sub>O–TiO<sub>2</sub> photocatalysts achieve an 8.67-ln reduction in viral activity within just 3 min of visible light exposure (<i>λ</i> > 400 nm). Furthermore, by optimizing the incorporation of Cu<sub><i>x</i></sub>O–TiO<sub>2</sub> materials, we demonstrate that antiviral functionality is maintained in polymer matrices through strategic positioning of the photocatalysts near the surface. This ensures Cu<sub><i>x</i></sub>O–TiO<sub>2</sub> remains accessible to light and reactants while maintaining strong polymer adhesion, which is critical for mechanical stability and durability. Not only does this polymer composite exhibit effective virucidal performance (4.28-ln reduction within 30 min), but it also ensures sustained performance (99.1% of its initial performance after 3 weeks under ambient conditions). These findings highlight the scalability and practical potential of these materials for consumer applications, significantly contributing to public health by reducing virus transmission.</p></div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"8 4","pages":""},"PeriodicalIF":21.8,"publicationDate":"2025-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s42114-025-01383-1.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145143531","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}