Advanced Composites and Hybrid Materials最新文献

{"title":"Advances in metallic biomaterial-based osteomyelitis theranostics","authors":"Shichang Liu,&nbsp;Ming Yang,&nbsp;Xinfei Wang,&nbsp;Junyi Yin,&nbsp;Wen Hong,&nbsp;Xuxu Chen,&nbsp;Xinhua Yin","doi":"10.1007/s42114-024-01047-6","DOIUrl":"10.1007/s42114-024-01047-6","url":null,"abstract":"<div><p>The treatment of osteomyelitis, a common orthopedic infection, presents a significant challenge for clinicians. The conventional approach to treating osteomyelitis involves prolonged and high-dose antibiotic therapy along with multiple surgical debridements; however, it is plagued by inadequate therapeutic efficacy and frequent re-sensitization. Therefore, the development of biomaterials possessing localized healing and antibacterial properties is imperative. In recent years, metal-based biomaterials have emerged as a hot research topic in the management of osteomyelitis due to their inherent antibacterial and bactericidal characteristics. This article provides an overview of the benefits and applications of metal-based biomaterials in treating osteomyelitis, encompassing magnesium-based, iron-based, copper-based, and noble metal–based materials as well as other metallic biomaterials. Metal-based biomaterials exhibit remarkable potential for addressing osteomyelitis owing to their broad-spectrum antibacterial properties, biodegradability, and ability to promote the proliferation of osteoblasts. Furthermore, these materials are gradually being employed in various biomedical therapies such as sonodynamic therapy, microwave dynamic therapy, photodynamic therapy immunotherapy, and multimodal therapy for effective treatment while circumventing the limitations associated with traditional antibiotic approaches. Metal-based biomaterials hold promising prospects for managing osteomyelitis effectively. Further research should focus on exploring solutions pertaining to challenges related to drug resistance, responsible drug release, and impact on mechanical properties of matrices induced by drugs, to facilitate clinical application of metal-based biomaterials in treating osteomyelitis.</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 1","pages":""},"PeriodicalIF":23.2,"publicationDate":"2024-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142737262","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":"Copper single-atom embedded mesoporous carbon nitride: a hybrid material for VOC sensing","authors":"Xueze Chu,&nbsp;Clastinrusselraj Indirathankam Sathish,&nbsp;Selvarajan Premkumar,&nbsp;Shibo Xi,&nbsp;Jiangtao Qu,&nbsp;Rongkun Zheng,&nbsp;Xiaojiang Yu,&nbsp;Mark Breese,&nbsp;Dongchen Qi,&nbsp;Wei Li,&nbsp;Liang Qiao,&nbsp;Ajayan Vinu,&nbsp;Jiabao Yi","doi":"10.1007/s42114-024-01075-2","DOIUrl":"10.1007/s42114-024-01075-2","url":null,"abstract":"<div><p>Single-atom metal catalysts (SACs) hold immense promise for catalytic applications, yet their potential as volatile organic compound (VOC) sensing materials remains largely untapped. Here, we report a facile approach to produce Cu single-atom (Cu-SA) embedded mesoporous carbon nitride (mCN) hybrid material for precise and selective detection of VOCs. The study highlights the exceptional sensing capabilities of Cu-SA-mCN, focusing on its remarkable selectivity for aliphatic esters, acids, and water molecules. Explicitly, the material demonstrates an exciting adsorption capacity of 109.4 mmol g⁻¹ for acetic acid, showcasing its superior performance, which is three times higher than mesoporous carbon nitride without Cu single atoms. The high selectivity and sensitivity of Cu-SA-mCN are attributed to the mesoporous nature, abundant nitrogen moieties, and Cu-SAs present within the material. Density functional theory (DFT) calculation results demonstrate a strong charge transfer between Cu-SA-mCN and adsorbate molecules, contributing to the material’s excellent sensing properties. This work opens new avenues in the development of mCN materials embedded with single metal atoms, enriching the field of VOC sensors with stable, accurate, and cost-effective solutions with potential applications in environmental monitoring and industrial safety.</p><h3>Graphical Abstract</h3><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 1","pages":""},"PeriodicalIF":23.2,"publicationDate":"2024-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142754001","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":"Synergizing chemistry: unveiling the potential of hybrid fillers for enhanced performance in shape memory polymers","authors":"Neha Bisht,&nbsp;Jeet Vishwakarma,&nbsp;Shubham Jaiswal,&nbsp;Pradip Kumar,&nbsp;Avanish Kumar Srivastava,&nbsp;Chetna Dhand,&nbsp;Neeraj Dwivedi","doi":"10.1007/s42114-024-01059-2","DOIUrl":"10.1007/s42114-024-01059-2","url":null,"abstract":"<div><p>Shape memory polymers (SMPs) are novel materials that revert to their original shape after undergoing a transient deformation in response to an external stimulus. This unique property makes them highly appealing for various applications due to their large flexibility, stretchability, and ability to function in rigorous and corrosive environments. However, SMPs face many key challenges, including low electrical and thermal conductivity, poor responsiveness to electromagnetic stimuli, and slow actuation. Recent advances in shape memory polymer composites (SMPCs) have centered on overcoming these limitations through the incorporation of hybrid fillers. These fillers, which consist of a combination of materials such as carbon nanotubes, graphene, nanoparticles, and metal particles, are designed to improve several properties of SMPs. For example, adding conductive fillers can enhance the material’s electrical and thermal conductivity, although additional fillers may be required to maintain its flexibility. Thus, hybrid fillers overcome the intrinsic shortcomings of SMPs by utilizing synergistic effects, where each component contributes to better performance. Despite these potential achievements, the role of hybrid fillers in SMPs has not been thoroughly discussed. To bridge this gap, this review focuses on recent developments in SMPCs, emphasizing how different filler combinations can enhance properties such as actuation, electrical and thermal conductivity, self-healing, and electromagnetic interference (EMI) shielding. It also examines the underlying principles driving these advancements, acknowledges ongoing challenges, and explores the potential future applications of hybrid filler technology. This research provides valuable insights into boosting SMP performance for advanced applications by highlighting the significance of hybrid fillers.</p></div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"8 1","pages":""},"PeriodicalIF":23.2,"publicationDate":"2024-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142736853","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":"Self-healing polyurethane/cellulose nanocrystal composite fibers with fatigue and aging resistance for smart wearable elastic yarns","authors":"Sisi Chen,&nbsp;Xin Liu,&nbsp;Yaping Miao,&nbsp;Shengbo Ge,&nbsp;Shi-xiong Li,&nbsp;Lin Liu,&nbsp;Lin Hou,&nbsp;Mashallah Rezakazemi,&nbsp;Tejraj M. Aminabhavi,&nbsp;Wei Fan","doi":"10.1007/s42114-024-01089-w","DOIUrl":"10.1007/s42114-024-01089-w","url":null,"abstract":"<div><p>With the rapid development of smart wearable devices, there is an increasing demand for materials that exhibit high strain, fatigue resistance, flexibility, and durability. Polyurethane (PU) fibers have gained attention due to their flexible molecular structure and adjustable formulations. However, the fatigue and aging resistance of traditional PU fibers are relatively weak, limiting their potential applications. To address this issue, this study presents a method for preparing PU-CNC self-healing composite fibers by incorporating environmentally friendly cellulose nanocrystals (CNC). It was found that the PU molecular chains create hydrogen bonds with the hydroxyl groups in the surface of CNC, forming a dynamic network with physical crosslinking that enhances the tensile strength and elongation, the self-healing ability, and the fatigue and aging resistance of PU-CNC composite fibers. Moreover, after fatigue and aging resistance tests, the mechanical characteristics of PU-CNC composite fibers are almost unchanged. When compared to PU fibers without CNC, the elongation at break and tensile strength of PU-1% CNC composite fibers increased by 33.92% and 17.93%, respectively. After the scratch test, the cracks on the surface of the self-healing of PU-1% CNC composite fibers disappeared, and the elongation at break and tensile strength increased by 57.18% and 128.02%, respectively. The flexibility and adaptability of this composite fiber provide a broad application prospect for the integration of flexible sensors and smart wearable devices, contributing to enhanced safety and durability in future smart devices.</p></div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"8 1","pages":""},"PeriodicalIF":23.2,"publicationDate":"2024-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142737350","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":"Dynamic construction of a composite solid electrolyte interphase for dendrite-free lithium metal batteries via lithium-antimony self-alloying","authors":"Byeong Chan Min,&nbsp;Jung Been Park,&nbsp;Changhoon Choi,&nbsp;Dong-Wan Kim","doi":"10.1007/s42114-024-01070-7","DOIUrl":"10.1007/s42114-024-01070-7","url":null,"abstract":"<div><p>Lithium (Li) is considered the most promising anode material for Li metal batteries (LMBs) because of its extraordinarily high theoretical capacity and the lowest electrochemical potential among all potential anode materials. Despite their advantages, Li metal anodes (LMAs) still have several critical shortcomings (such as high reactivity and considerable volume expansion), which result in dendritic Li growth and fatal damage to the natural solid electrolyte interphase (SEI) of LMAs. These issues raise safety concerns and cause poor cycling stability of LMAs owing to their continuous parasitic reactions, which hinder their practical use in LMBs. Herein, by employing dynamic chemical reactions for Li-antimony (Sb) self-alloying and tetrahydrofuran-induced ion-conducting SEI fabrication, an artificial composite SEI is proposed to build a stable and dendrite-free LMA. The smooth and dense surface architecture of the electron-insulating and ion-conductive SEI in the LMA (Li@SbCl₃-20) not only promotes uniform Li-ion flux and current density but also prevents the direct Li-electrolyte contact, which results in a uniform and dense Li plating morphology underneath the SEI without side reactions. Moreover, symmetric Li@SbCl₃-20||Li@SbCl₃-20 cells demonstrate stable cyclability (over 400 h) and rate capability at metabolic current densities. When paired with LiNi_0.6Co_0.2Mn_0.2 or LiFePO₄, the Li@SbCl₃-20 full-cells achieved long-term cycling stability and rate performance.</p></div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"8 1","pages":""},"PeriodicalIF":23.2,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142714625","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":"Advancing the next generation of high-performance metal matrix composites through metal particle reinforcement","authors":"Sayed Ali Ahmad Alem,&nbsp;Mohammad Hossein Sabzvand,&nbsp;Parnian Govahi,&nbsp;Pooria Poormehrabi,&nbsp;Mahdi Hasanzadeh Azar,&nbsp;Sara Salehi Siouki,&nbsp;Reza Rashidi,&nbsp;Shayan Angizi,&nbsp;Sara Bagherifard","doi":"10.1007/s42114-024-01057-4","DOIUrl":"10.1007/s42114-024-01057-4","url":null,"abstract":"<div><p>Metal matrix composites (MMCs) offer asignificant boost to achieve a wide range of advanced mechanical properties and improved performance for a variety of demanding applications. The addition of metal particles as reinforcement in MMCs is an exciting alternative to conventional ceramic reinforcements, which suffer from numerous shortcomings. Over the last two decades, various categories of metal particles, i.e., intermetallics, bulk metallic glasses, high-entropy alloys, and shape memory alloys, have become popular as reinforcement choices for MMCs. These groups of metal particles offer a combination of outstanding physico-mechanical properties leading to unprecedented performances; moreover, they are significantly more compatible with the metal matrices compared to traditional ceramic reinforcements. In this review paper, the recent developments in MMCs are investigated. The importance of understanding the active mechanisms at the interface of the matrix and the reinforcement is highlighted. Moreover, the processing techniques required to manufacture high-performance MMCs are explored identifying the potential structural and functional applications. Finally, the potential advantages and current challenges associated with the use of each reinforcement category and the future developments are critically discussed. Based on the reported results, the use of metal particles as reinforcement in MMCs offers a promising avenue for the development of advanced materials with novel mechanical properties. Further progress requires more in-depth fundamental research to realize the active reinforcing mechanisms at the atomic level to precisely identify, understand, and tailor the properties of the integrated composite materials.</p></div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"8 1","pages":""},"PeriodicalIF":23.2,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s42114-024-01057-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142714622","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":"New insights in understanding the fiber-matrix interface and its reinforcement behavior using single fiber fragmentation data","authors":"Emile Motta de Castro,&nbsp;Ali Tabei,&nbsp;Daren B. H. Cline,&nbsp;Ejaz Haque,&nbsp;Lindsay B. Chambers,&nbsp;Kenan Song,&nbsp;Lisa Perez,&nbsp;Kyriaki Kalaitzidou,&nbsp;Amir Asadi","doi":"10.1007/s42114-024-01054-7","DOIUrl":"10.1007/s42114-024-01054-7","url":null,"abstract":"<div><p>As the microscale size of fiber reinforcements limits the physical ability to measure adhesion and residual stresses, there exists an incomplete understanding of the mechanisms that improve composite performance, further compounded by the recent trends in advanced surface treatments that incorporate multi-functional nanofillers. Despite significant advances in the micromechanical analysis of single-fiber systems, revised methodologies to characterize the fiber interface have yet to be standardized, often due to the need for additional experiments. To address these challenges, we demonstrate a novel data processing approach for the single fiber fragmentation test, with the primary objective of maintaining practicality by using typical fragmentation data as-is while deriving interface cohesive parameters. Our twofold process uses Monte Carlo simulations to establish accurate boundary conditions for subsequent numerical analysis using cohesive zone models (CZM). The Monte Carlo simulation derives the average interface shear stress (<i>τ</i>_ave) and critical fiber length (<i>l</i>_c) to estimate the link between the fragmentation process and fiber-matrix properties. Then CZM—while incorporating sample fabrication stresses, interface friction, thermal/cure stresses, and plasticity effects—allows for the assessment of the maximum shear traction (<i>τ</i>_max) and Mode II critical energy release rate (<i>G</i>_IIC). Applying this analysis to the results of a surface treatment involving cellulose nanocrystals deposited at the sized glass fiber-epoxy interface, we reveal the reinforcement mechanisms of interface deposited nanofillers. Our study assists in reconciling the differences between the SFFT and other single fiber methodologies, to bridge the gap between experimental and computational micromechanics.</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 1","pages":""},"PeriodicalIF":23.2,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142714626","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":"Metal-free heteroatom integrated defect engineering of flexible carbon networks on tin oxide nanoparticles to enhance lithium-ion battery performance","authors":"Saima Batool,&nbsp;Muhammad Idrees,&nbsp;Muhammad Sufiyan Javed,&nbsp;Junguo Xu,&nbsp;Munirah D. Albaqami,&nbsp;Awais Ahmad","doi":"10.1007/s42114-024-01048-5","DOIUrl":"10.1007/s42114-024-01048-5","url":null,"abstract":"<div><p>We propose an innovative and straightforward approach to mitigate the mechanical strain of tin oxide nanoparticles via coating them with a heteroatom-integrated honeycomb-like carbon layer. This design improves the stability of the electrode–electrolyte interface. Tin oxide nanoparticles were coated with a carbon layer integrated with sulfur and nitrogen using phenolic resin and 2,5-mercapto-1,3,4-thiadiazole, followed by reduction and carbonization, resulting in the SnO₂@S,N–C nanocomposite. The heteroatom doping disrupts the carbon lattice, creating vacancies, defects, and functional groups that serve as active sites for lithium-ion adsorption and enhance ion diffusion. The porous carbon layer enables efficient electrolyte penetration and accommodates volume changes during cycling. The engineered SnO₂@S,N–C and SnO₂@C anode materials exhibited impressive lithium-ion storage capacities of 840 mAh g⁻¹ and 640 mAh g⁻¹ at 0.1 A g⁻¹, respectively, with a coulombic efficiency of over 99% sustained for up to 750 cycles. Additionally, SnO₂@S,N–C retained specific capacities of 505.79 and 387.99 mAh g⁻¹ at current densities of 0.6 A g⁻¹ and 1.0 A g⁻¹, respectively, maintaining a ≥ 99% coulombic efficiency for up to 100 cycles. Density functional theory (DFT) calculations confirmed a strong binding affinity for lithium ions on SnO₂@S,N–C. This method demonstrates a promising strategy for optimizing anode materials in high-performance lithium-ion batteries.\u0000</p></div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"8 1","pages":""},"PeriodicalIF":23.2,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142737211","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":"Hybrid graphene and carbon nanotube–reinforced composites: polymer, metal, and ceramic matrices","authors":"Bo Liu,&nbsp;Jialin Sun,&nbsp;Jun Zhao,&nbsp;Xialun Yun","doi":"10.1007/s42114-024-01074-3","DOIUrl":"10.1007/s42114-024-01074-3","url":null,"abstract":"<div><p>Graphene and carbon nanotube (CNT) have been recognized as the new-generation and state-of-the-art nano-reinforcement for polymers, metals, and ceramics as a function of their unique nanostructures, extraordinary mechanical properties, and outstanding multifunctional features. Despite the advantages, however, recently, there have been some concerns about the challenges associated with the use of graphene and CNT as nano-reinforcement in composites, i.e., poor dispersion in the host matrix, the anisotropic electrical/thermal properties, limiting the further improvement of graphene or CNT-reinforced materials. Very recently, hybridization of graphene and CNT was reported to solve the above issues in case of single graphene or CNT as reinforcement. Herein, we commence our review by giving a general preface on the impact of materials on human development and the role of graphene/CNT hybrid in maximizing the performance of materials. Then, given the importance of the availability of graphene/CNT hybrid, we proceed with a specific discussion on the strategies and simulations for the hybridization of graphene with CNT. Subsequently, we concentrate our attention on state-of-the-art graphene/CNT hybrid–reinforced polymer, metal, and ceramic matrix composites, respectively, critically showcasing the progress and associated mechanisms of three-dimensional carbonaceous nanofillers within various matrices. Finally, we provide perspectives on practical technological limitations/challenges and emerging opportunities for advanced composites.</p></div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"8 1","pages":""},"PeriodicalIF":23.2,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142714492","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 preparation of CuO/Cu2O/Cu/N-codoped biochar from chitosan derivative: Adsorption property and photo-Fenton catalytic performance in removal of antibiotic","authors":"Dawei Wang,&nbsp;Huan Wang,&nbsp;Ziguang Tan,&nbsp;Abdulraheem SA Almalki,&nbsp;Ahmed M. Fallatah,&nbsp;Silin Yang,&nbsp;Zhengjun Shi","doi":"10.1007/s42114-024-01069-0","DOIUrl":"10.1007/s42114-024-01069-0","url":null,"abstract":"<div><p>Nanosheets of chitosan-Schiff base copper complex (CS-Schiff-Cu) were synthesized by coordination of Cu²⁺ with chitosan-salicylaldehyde Schiff base. Then, nanoparticles of copper-nitrogen codoped biochar (Cu–N-C-700) were prepared by pyrolysis of CS-Schiff-Cu nanosheets in N₂ atmosphere at 700 °C. Morphological and structural characterizations indicated that, in Cu–N-C-700 the nanostructured CuO, Cu₂O, and Cu active sites were successfully implanted in-situ in the biochar matrix, and the N element was doped into carbon as pyrrolic and pyridinic structures. BET measurement revealed that Cu–N-C-700 possesses mesoporous structure with average pore diameter of 21 nm. The adsorption of tetracycline antibiotic on Cu–N-C-700 in aqueous solution was calculated to follow the Freundlich isotherm model and the pseudo-first-order kinetic model. The Cu–N-C-700/H₂O₂ system exhibited good catalytic performance in degradation of tetracycline with a degradation efficiency of 98.5% after irradiating for 15 min. The influence of H₂O₂ dosage and initial pH value on the degradation of tetracycline was discussed in detail. The possible degradation pathway of tetracycline was also investigated. The Cu–N-C-700 nanocomposite remained stable in five consecutive cycles, suggesting good reusability. Finally, a reasonable adsorption-photo-Fenton synergy mechanism was proposed based on the CuO/Cu₂O/Cu multi-active centers and the good adsorption and conductive performance of biochar.</p></div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"8 1","pages":""},"PeriodicalIF":23.2,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142714494","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}