Journal of Materials Science最新文献

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Environmental geopolymer microsphere composite catalysts as highly efficient activators of peroxymonosulfate (PMS) for the degradation of Rhodamine B 环境土工聚合物微球复合催化剂作为过一硫酸盐 (PMS) 的高效活化剂降解罗丹明 B
IF 3.5 3区 材料科学
Journal of Materials Science Pub Date : 2024-11-13 DOI: 10.1007/s10853-024-10354-8
Yutong Yang, Wenkang Qi, Yuanyuan Xie, Chunjie Huang, Qiaoqiao Su, Xingyong Xue, Yaocong Han, Dongping Wei
{"title":"Environmental geopolymer microsphere composite catalysts as highly efficient activators of peroxymonosulfate (PMS) for the degradation of Rhodamine B","authors":"Yutong Yang,&nbsp;Wenkang Qi,&nbsp;Yuanyuan Xie,&nbsp;Chunjie Huang,&nbsp;Qiaoqiao Su,&nbsp;Xingyong Xue,&nbsp;Yaocong Han,&nbsp;Dongping Wei","doi":"10.1007/s10853-024-10354-8","DOIUrl":"10.1007/s10853-024-10354-8","url":null,"abstract":"<div><p>As efficient activators of peroxymonosulfate (PMS), cobalt ions play an important role in the degradation of organic pollutants. It is imperative to synthesize PMS activators from low-cost materials with uniform structures to improve the catalytic efficiency and cycle life and reduce the cost of wastewater treatment, which has practical importance. In this work, alkali-activated slag geopolymer microsphere-supported Co catalysts (Co-GMs) were synthesized via a simple solution impregnation method and used for the degradation of Rhodamine B (RhB). The Co-GM/PMS system is highly efficient, and the degradation rate of RhB (40 mg/L) reached 99.8% within only 10 min. Moreover, Co-GM has a wide pH range from 3 to 9 and good anti-interference performance for other ions, as well as low Co<sup>2+</sup> leaching (0.809 mg/L) and favorable reusability. Reactive oxygen species (ROS) were explored via radical quenching experiments and electron spin-resonance (ESR) spectroscopy, which revealed determined that the major ROS involved in the degradation of RhB are <sup>1</sup>O<sub>2</sub> and SO<sub>4</sub><sup>·−</sup>. The synergistic effect of free and nonfree radicals plays an important role during degradation. Moreover, four probable degradation pathways were proposed via liquid‒phase mass spectrometry (LC‒MS). The results revealed that the removal rate of total organic carbon (TOC) reached 74.2% within 60 min. This research innovatively proposed the application of geopolymer composite catalysts in advanced oxidation and developed an ultralow-cost PMS activator for highly efficient degradation of RhB, which represents a new choice for wastewater treatment.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"59 44","pages":"20575 - 20592"},"PeriodicalIF":3.5,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142691941","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Precipitation kinetics and creep properties of multicomponent Ni-based superalloys 多组分镍基超合金的沉淀动力学和蠕变特性
IF 3.5 3区 材料科学
Journal of Materials Science Pub Date : 2024-11-12 DOI: 10.1007/s10853-024-10275-6
Ye Shan, Ji-cheng Zhuo, Jun-peng Song, Kun-ning Niu, Yong-sheng Li
{"title":"Precipitation kinetics and creep properties of multicomponent Ni-based superalloys","authors":"Ye Shan,&nbsp;Ji-cheng Zhuo,&nbsp;Jun-peng Song,&nbsp;Kun-ning Niu,&nbsp;Yong-sheng Li","doi":"10.1007/s10853-024-10275-6","DOIUrl":"10.1007/s10853-024-10275-6","url":null,"abstract":"<div><p>The evolution kinetics and creep characteristics of the γʹ phase are closely related to the mechanical properties of multicomponent Ni-based superalloys. Thus, an investigation of the continuous precipitation-to-creep behavior of the γʹ phase is needed. By using crystal viscoplastic multicomponent phase-field simulation, the effects of Co on the evolution kinetics of the γʹ-(Ni, Co)<sub>3</sub>(Al, Ta) phase and creep rafting are revealed in Ni-12.2Al-<i>x</i>Co-2.5Ta (<i>x</i> = 6, 8, and 10 at.%) multicomponent superalloys. Co promotes the precipitation of the γʹ phase with increasing volume fraction and particle number, while the particle radius and coarsening rate of the γʹ phase are reduced. The high Co content results in a low creep strain and long creep life, and the degeneration of the γʹ phase becomes slow in the accelerated creep stage. A higher volume fraction of the γʹ phase is maintained, and the stability of the γʹ rafts is elevated after creep. Moreover, the contributions of the activated slip systems to the creep properties are analyzed, and the octahedral slip systems <span>(left( {overline{1}overline{1}1} right)left[ {101} right])</span> under tensile stress and <span>(left( {overline{1}11} right)left[ {0overline{1}1} right])</span> under compressive stress dominate the creep strain. The phase-field simulation provides continuous precipitation and creep morphology kinetics predictions for multicomponent Ni-based superalloys.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"59 44","pages":"20715 - 20734"},"PeriodicalIF":3.5,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142691922","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effect of stabilizer agent type on the characteristics of Pd–Ni nanoparticles deposited on reduced graphene oxide as electrocatalysts for the oxygen reduction reaction 稳定剂类型对沉积在还原氧化石墨烯上的钯镍纳米粒子作为氧还原反应电催化剂特性的影响
IF 3.5 3区 材料科学
Journal of Materials Science Pub Date : 2024-11-12 DOI: 10.1007/s10853-024-10407-y
Uswatul Chasanah, Wega Trisunaryanti,  Triyono, Iman Santoso, Dyah Ayu Fatmawati, Jason Purbonegoro
{"title":"Effect of stabilizer agent type on the characteristics of Pd–Ni nanoparticles deposited on reduced graphene oxide as electrocatalysts for the oxygen reduction reaction","authors":"Uswatul Chasanah,&nbsp;Wega Trisunaryanti,&nbsp; Triyono,&nbsp;Iman Santoso,&nbsp;Dyah Ayu Fatmawati,&nbsp;Jason Purbonegoro","doi":"10.1007/s10853-024-10407-y","DOIUrl":"10.1007/s10853-024-10407-y","url":null,"abstract":"<div><p>With the scarcity of platinum, Pd–Ni impregnated on reduced graphene oxide as an alternative has been synthesized and characterized. This research has the aim of investigating the effects of adding stabilizer agents to metallic-rGO as oxygen reduction reaction catalysts. The metal-rGO catalyst without stabilizer revealed that Pd-rGO had the highest surface area and conductivity of 52.39 m<sup>2</sup> g<sup>−1</sup> and 18.30 S m<sup>−1</sup>, while the H–Pd–Ni-rGO catalyst had the surface area and conductivity of 18.80 m<sup>2</sup> g<sup>−1</sup> and 8.28 S m<sup>−1</sup>. These two values together have an impact on the ORR capacity to feed water and export electrons via catalysis and oxygen adsorption, thus impacting the ORR capacity to emigrate electrons as well as its capacity to produce water through oxygen adsorption and catalysis. Although Pd-rGO has higher surface area, conductivity, and n transfer value, H–Pd–Ni-rGO catalyst is the best electrocatalyst due to more stability provided by the HMTA stabilizer by retaining the energy density with the same applied potential even after 2000 cycles, indicating H–Pd–Ni-rGO catalyst is better for long-term use.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"59 44","pages":"20593 - 20605"},"PeriodicalIF":3.5,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142691921","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Editorial: A vote of thanks to our departing editors 社论:向即将离任的编辑致谢
IF 3.5 3区 材料科学
Journal of Materials Science Pub Date : 2024-11-12 DOI: 10.1007/s10853-024-10366-4
C. Barry Carter
{"title":"Editorial: A vote of thanks to our departing editors","authors":"C. Barry Carter","doi":"10.1007/s10853-024-10366-4","DOIUrl":"10.1007/s10853-024-10366-4","url":null,"abstract":"<div><div><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"59 44","pages":"20491 - 20495"},"PeriodicalIF":3.5,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142691920","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Lamellar Co3O4/NH2-MIL125 composites: boosting photocatalytic activity and stability for toluene degradation 片状 Co3O4/NH2-MIL125 复合材料:提高甲苯降解的光催化活性和稳定性
IF 3.5 3区 材料科学
Journal of Materials Science Pub Date : 2024-11-12 DOI: 10.1007/s10853-024-10368-2
Houde She, Dongxu Chen, Jingwei Huang, Lei Wang, Jiufu Chen, Xiaoping Chen, Qizhao Wang
{"title":"Lamellar Co3O4/NH2-MIL125 composites: boosting photocatalytic activity and stability for toluene degradation","authors":"Houde She,&nbsp;Dongxu Chen,&nbsp;Jingwei Huang,&nbsp;Lei Wang,&nbsp;Jiufu Chen,&nbsp;Xiaoping Chen,&nbsp;Qizhao Wang","doi":"10.1007/s10853-024-10368-2","DOIUrl":"10.1007/s10853-024-10368-2","url":null,"abstract":"<div><p>The removal of volatile organic compounds has been a long-standing challenge, and NH<sub>2</sub>-MIL125, with its large specific surface area, has shown great promise in this regard. However, its limited number of active sites hinders its widespread application. To address this limitation, we report the successful synthesis of a series of Co<sub>3</sub>O<sub>4</sub>-modified NH<sub>2</sub>-MIL125 metal–organic framework (MOF) composites with a lamellar structure. Notably, the optimized 35% Co<sub>3</sub>O<sub>4</sub>/NH<sub>2</sub>-MIL125 composite exhibited exceptional performance, achieving 85.59% degradation and 76.58% CO<sub>2</sub> conversion under simulated sunlight. Moreover, this composite demonstrated excellent stability, maintaining a degradation rate of 79.67% over 520 min. The enhanced performance is attributed to the large specific surface area of NH<sub>2</sub>-MIL125, as well as the Co<sub>3</sub>O<sub>4</sub> modification, which provides new active sites, enhances light utilization efficiency, accelerates the separation of photogenerated carriers, and facilitates the generation of reactive radicals. This in-situ growth strategy for modifying NH<sub>2</sub>-MIL125 with Co<sub>3</sub>O<sub>4</sub> offers a novel approach to expand the application scope of NH<sub>2</sub>-MIL125 and enhance its performance in toluene degradation.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div><p> Characterization of layered Co<sub>3</sub>O<sub>4</sub>-modified NH<sub>2</sub>-MIL125 catalysts, evaluation of photocatalytic degradation performance of toluene, photogenerated carrier migration, and separation studies.</p></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"59 44","pages":"20624 - 20639"},"PeriodicalIF":3.5,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142691939","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
An updated review on the modifications, recycling, polymerization, and applications of polymethyl methacrylate (PMMA) 关于聚甲基丙烯酸甲酯(PMMA)的改性、回收、聚合和应用的最新综述
IF 3.5 3区 材料科学
Journal of Materials Science Pub Date : 2024-11-11 DOI: 10.1007/s10853-024-10402-3
Great Iruoghene Edo, Winifred Ndudi, Ali B. M. Ali, Emad Yousif, Khalid Zainulabdeen, Priscillia Nkem Onyibe, Patrick Othuke Akpoghelie, Helen Avuokerie Ekokotu, Endurance Fegor Isoje, Ufuoma Augustina Igbuku, Arthur Efeoghene Athan Essaghah, Dina S. Ahmed, Huzaifa Umar
{"title":"An updated review on the modifications, recycling, polymerization, and applications of polymethyl methacrylate (PMMA)","authors":"Great Iruoghene Edo,&nbsp;Winifred Ndudi,&nbsp;Ali B. M. Ali,&nbsp;Emad Yousif,&nbsp;Khalid Zainulabdeen,&nbsp;Priscillia Nkem Onyibe,&nbsp;Patrick Othuke Akpoghelie,&nbsp;Helen Avuokerie Ekokotu,&nbsp;Endurance Fegor Isoje,&nbsp;Ufuoma Augustina Igbuku,&nbsp;Arthur Efeoghene Athan Essaghah,&nbsp;Dina S. Ahmed,&nbsp;Huzaifa Umar","doi":"10.1007/s10853-024-10402-3","DOIUrl":"10.1007/s10853-024-10402-3","url":null,"abstract":"<div><p>The constraints of pure PMMA have made the cross-linkage of polymethyl methacrylate (PMMA) an interesting issue to meet application requirements. Cross-linked PMMA offers several advantages over its uncross-linked counterpart, due to its exceptional electrical insulation, chemical stability, clarity, improved heat resistance, superior mechanical properties, and abrasion resistance, and one of the most used polymer cements in orthopedic surgery is polymethyl methacrylate, or PMMA. PMMA, or poly(methyl methacrylate), is widely utilized in a variety of industries, including optical equipment, aviation, architecture, and health care. However, PMMA's physical characteristics play a major role in its utilization. An increase in molecular weight results in an increase in mechanical qualities, for example, elasticity, Young's modulus, shear modulus, and fracture surface energy. Therefore, it is essential to synthesize high molecular weight PMMA. This review briefly discusses the impact of adding an organometallic component to the polymer's backbone to pendant functionalized poly(methyl methacrylate) PMMA, UV radiation, free radical cross-linking, small-molecule cross-linking, condensation methods, the use of coordination polymerization, atom transferring radical polymerization, and conventional polymerization by free radical to produce high molecular weight PMMA; additionally, the impact of cross-linkers on the characteristics of polymers is discussed. The paper also looks at a number of important uses of cross-linked PMMA.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"59 44","pages":"20496 - 20539"},"PeriodicalIF":3.5,"publicationDate":"2024-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142691906","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The initial corrosion mechanism of hot-dipping Zn–Al–Mg alloy coating in chloride-containing solution 含氯化物溶液中热浸锌铝镁合金涂层的初始腐蚀机理
IF 3.5 3区 材料科学
Journal of Materials Science Pub Date : 2024-11-11 DOI: 10.1007/s10853-024-10410-3
Shasha Zhang, Xin He, Ting Shang, Guangrui Jiang, Wuhua Liu, Huaxiang Teng, Tianqi Chen, Xuequn Cheng, Chao Liu
{"title":"The initial corrosion mechanism of hot-dipping Zn–Al–Mg alloy coating in chloride-containing solution","authors":"Shasha Zhang,&nbsp;Xin He,&nbsp;Ting Shang,&nbsp;Guangrui Jiang,&nbsp;Wuhua Liu,&nbsp;Huaxiang Teng,&nbsp;Tianqi Chen,&nbsp;Xuequn Cheng,&nbsp;Chao Liu","doi":"10.1007/s10853-024-10410-3","DOIUrl":"10.1007/s10853-024-10410-3","url":null,"abstract":"<div><p>In this study, the initial corrosion behavior of surface and cut-edge structures of hot-dip Zn-1.5Al-1.1 Mg alloy coatings in a 3.5wt.% NaCl solution was investigated. Micro-electrochemical experiments were conducted to explore the influence mechanism of coating structure on corrosion initiation. The results indicate that different microstructures significantly affect the corrosion resistance of the coating due to their potential differences, highlighting varied roles in this process. Preferential corrosion of the ternary eutectic phase occurs, leading to the gradual formation of corrosion products that cover the coating surface. This protective layer hinders further erosion by corrosive media, thereby improving the coating’s corrosion resistance. Furthermore, the galvanic difference between each phase of the coating is concealed by the coating and the substrate, and the corrosion products can accumulate on the substrate, illustrating the dual protection of the coating on the steel substrate at the cut-edge: cathodic protection due to its negative potential and long-term protection of the corrosion product film.</p></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"59 44","pages":"20780 - 20795"},"PeriodicalIF":3.5,"publicationDate":"2024-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142691905","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Smart construction of polyaniline shell on Fe2O3 as enabling high performance anode toward flexible lithium-ion battery 在 Fe2O3 上智能构建聚苯胺外壳,实现柔性锂离子电池的高性能负极
IF 3.5 3区 材料科学
Journal of Materials Science Pub Date : 2024-11-11 DOI: 10.1007/s10853-024-10413-0
Xiangyu Yin, Xinyi Li, Peng lv, Zhen Liu, Hui Li, Lige Bi, Meili Qi, Xin Mu, Dongxuan Guo
{"title":"Smart construction of polyaniline shell on Fe2O3 as enabling high performance anode toward flexible lithium-ion battery","authors":"Xiangyu Yin,&nbsp;Xinyi Li,&nbsp;Peng lv,&nbsp;Zhen Liu,&nbsp;Hui Li,&nbsp;Lige Bi,&nbsp;Meili Qi,&nbsp;Xin Mu,&nbsp;Dongxuan Guo","doi":"10.1007/s10853-024-10413-0","DOIUrl":"10.1007/s10853-024-10413-0","url":null,"abstract":"<div><p>A novel Fe₂O₃@CC (carbon cloth) composite, encapsulated in a polyaniline (PANI) shell and further enhanced by nitrogen doping, is developed to form a core–shell structure. The carbon framework provides robust electrical conductivity, while the nitrogen doping introduces additional active sites for lithium-ion interaction and improves electrochemical performance. This flexible electrode design not only enhances ion diffusion but also delivers structural integrity, making it highly suitable for high-performance energy storage applications. The flexible properties of PANI effectively adapt to the volume change of Fe<sub>2</sub>O<sub>3</sub> during the cycling process. The assembled battery Fe<sub>2</sub>O<sub>3</sub>@CC-PANI-30 core–shell nanowire arrays provides a capacity of 768.5 mA h g<sup>−1</sup> after 100 cycles at 100 mA g<sup>−1</sup>. Even after 800 cycles at 500 mA g<sup>−1</sup>, it provides 468.3 mA h g<sup>−1</sup> capacity. The N-doped PANI layer not only improves conductivity but also alleviates the volume expansion of Fe₂O₃ during charge–discharge processes, reducing mechanical stress and enhancing cycling stability. Notably, the PANI coating, enriched with N heteroatoms, introduces numerous defects that create ample channels for efficient Li⁺ transport. This synthetic approach, leveraging nitrogen doping to boost both electronic and ionic conductivity, provides valuable insights for designing integrated flexible electrodes, offering a significant improvement over Fe₂O₃ and Fe₂O₃@CC systems without nitrogen modification.</p></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"59 44","pages":"20686 - 20702"},"PeriodicalIF":3.5,"publicationDate":"2024-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142691908","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Facile synthesis of poly(quinone-amine) based multifunctional photothermal nanoparticles for antibacterial and antitumor therapy 用于抗菌和抗肿瘤治疗的聚醌胺基多功能光热纳米粒子的简便合成方法
IF 3.5 3区 材料科学
Journal of Materials Science Pub Date : 2024-11-11 DOI: 10.1007/s10853-024-10414-z
Xianan Li, Lingfeng Pan, Yongjia Zhang, Hairui Deng, Mengcheng Tang, Yachen Xu, Xiaoli Zhang, Shibo Wang, Xiangdong Kong
{"title":"Facile synthesis of poly(quinone-amine) based multifunctional photothermal nanoparticles for antibacterial and antitumor therapy","authors":"Xianan Li,&nbsp;Lingfeng Pan,&nbsp;Yongjia Zhang,&nbsp;Hairui Deng,&nbsp;Mengcheng Tang,&nbsp;Yachen Xu,&nbsp;Xiaoli Zhang,&nbsp;Shibo Wang,&nbsp;Xiangdong Kong","doi":"10.1007/s10853-024-10414-z","DOIUrl":"10.1007/s10853-024-10414-z","url":null,"abstract":"<div><p>Photothermal therapy, as a therapeutic modality that uses photothermal agent (PTA) to convert light energy into thermal energy, has a promising future in the fields of bacterial clearance and tumor growth suppression. Among the various PTAs, conjugated polymers (CPs) have been highly emphasized due to their excellent photothermal conversion efficiency. However, CPs often exhibit complex structures and require cumbersome synthesis steps, which often make it difficult to achieve fast and convenient production. Here, we report the rapid synthesis of benzoquinone diamine conjugated polymer (BDCPs) through a simple polymerization process using p-benzoquinone and thiourea as raw materials. It is shown that BDCPs have good absorption in the NIR region and can be rapidly warmed up under light, which possesses good photothermal conversion ability. In addition, BDCP nanoparticles (BDCPNs) obtained by straightforward modification of BDCPs with polyethylene glycol can be stably dispersed in aqueous solution for a long time and maintain impressive photothermal conversion (37.8%). Moreover, cellular experiments affirm the excellent biocompatibility of BDCPNs. Under 808 nm laser irradiation, BDCPNs demonstrate potent inhibitory effects against <i>Staphylococcus aureus</i> (85%) and <i>Escherichia coli</i> (80%), as well as tumor cells (tumor inhibition rate: 84%), highlighting their superior photothermal therapeutic effects. We anticipate that this research will serve as a valuable reference for the swift and straightforward synthesis of photothermal polymers, facilitating their subsequent cost-effective promotion and application.</p></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"59 44","pages":"20703 - 20714"},"PeriodicalIF":3.5,"publicationDate":"2024-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142691904","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effect of infill orientation on the wear behaviour of 3D printed polyetheretherketone 填充方向对 3D 打印聚醚醚酮磨损性能的影响
IF 3.5 3区 材料科学
Journal of Materials Science Pub Date : 2024-11-11 DOI: 10.1007/s10853-024-10390-4
Sunil Kumar Prajapati, R. Gnanamoorthy
{"title":"Effect of infill orientation on the wear behaviour of 3D printed polyetheretherketone","authors":"Sunil Kumar Prajapati,&nbsp;R. Gnanamoorthy","doi":"10.1007/s10853-024-10390-4","DOIUrl":"10.1007/s10853-024-10390-4","url":null,"abstract":"<div><p>High-temperature additive manufacturing permits printing advanced Polyetheretherketone (PEEK) sliding bearings with different surface features needed for better heat dissipation or lubrication of bearings. The as-printed surfaces of fused filament fabrication parts are different compared to the molded or extruded surfaces and will influence the performance. The layer orientation with respect to the sliding direction is a key parameter that decides be bearing performance and is investigated using representative pin samples. The accommodation of debris on soft polymer sliding against hard steel during the initial period of sliding influences the friction and wear characteristics and contact temperature rise. The heat buildup in polymers that limits the operating load and speed in the initial period is influenced by the airflow between the layers which depends on the sliding direction. The current observations will assist in choosing the printing direction for sliding contact conditions.</p></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"59 44","pages":"20840 - 20853"},"PeriodicalIF":3.5,"publicationDate":"2024-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142691907","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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