Nanomaterials最新文献

Functionalization of Polypropylene by TiO₂ Photocatalytic Nanoparticles: On the Importance of the Surface Oxygen Plasma Treatment. TiO2 光催化纳米粒子对聚丙烯的功能化：表面氧等离子处理的重要性。

IF 4.4 3区材料科学

Nanomaterials Pub Date : 2024-08-22 DOI: 10.3390/nano14161372

Karolina Zajac, Joanna Macyk, Konrad Szajna, Franciszek Krok, Wojciech Macyk, Andrzej Kotarba

{"title":"Functionalization of Polypropylene by TiO2 Photocatalytic Nanoparticles: On the Importance of the Surface Oxygen Plasma Treatment.","authors":"Karolina Zajac, Joanna Macyk, Konrad Szajna, Franciszek Krok, Wojciech Macyk, Andrzej Kotarba","doi":"10.3390/nano14161372","DOIUrl":"10.3390/nano14161372","url":null,"abstract":"A new two-step method for developing a nanocomposite of polypropylene (PP) decorated with photocatalytically active TiO2 nanoparticles (nTiO2) is proposed. This method involves the low-temperature plasma functionalization of polypropylene followed by the ultrasound-assisted anchoring of nTiO2. The nanoparticles, polymeric substrate, and resultant nanocomposite were thoroughly characterized using nanoparticle tracking analysis (NTA), microscopic observations (SEM, TEM, and EDX), spectroscopic investigations (XPS and FTIR), thermogravimetric analysis (TG/DTA), and water contact angle (WCA) measurements. The photocatalytic activity of the nanocomposites was evaluated through the degradation of methyl orange. The individual TiO2 nanoparticles ranged from 2 to 6 nm in size. The oxygen plasma treatment of PP generated surface functional groups (mainly -OH and -C=O), transforming the surface from hydrophobic to hydrophilic, which facilitated the efficient deposition of nTiO2. Optimized plasma treatment and sonochemical deposition parameters resulted in an active photocatalytic nTiO2/PP system, degrading 80% of the methyl orange under UVA irradiation in 200 min. The proposed approach is considered versatile for the functionalization of polymeric materials with photoactive nanoparticles and, in a broader perspective, can be utilized for the fabrication of self-cleaning surfaces.","PeriodicalId":18966,"journal":{"name":"Nanomaterials","volume":null,"pages":null},"PeriodicalIF":4.4,"publicationDate":"2024-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11357085/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142080982","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhancing Slurry Stability and Surface Flatness of Silicon Wafers through Organic Amine-Catalyzed Synthesis Silica Sol. 通过有机胺催化合成提高硅晶片的浆料稳定性和表面平整度 Silica Sol.

IF 4.4 3区材料科学

Nanomaterials Pub Date : 2024-08-22 DOI: 10.3390/nano14161371

Yi Xing, Weilei Wang, Weili Liu, Zhitang Song

{"title":"Enhancing Slurry Stability and Surface Flatness of Silicon Wafers through Organic Amine-Catalyzed Synthesis Silica Sol.","authors":"Yi Xing, Weilei Wang, Weili Liu, Zhitang Song","doi":"10.3390/nano14161371","DOIUrl":"10.3390/nano14161371","url":null,"abstract":"The stability of slurries used for chemical mechanical polishing (CMP) is a crucial concern in industrial chip production, influencing both the quality and cost-effectiveness of polishing fluids. In silicon wafer polishing, the conventional use of commercial neutral silica sol combined with organic bases often leads to slurry instability. To address this issue, this study proposes organic amines-specifically ethanolamine (MEA), ethylenediamine (EDA), and tetramethylammonium hydroxide (TMAOH)-as catalysts for synthesizing alkaline silica sol tailored for silicon wafer polishing fluids. Sol-gel experiments and zeta potential measurements demonstrate the efficacy of this approach in enhancing the stability of silica sol. The quantitative analysis of surface hydroxyl groups reveals a direct correlation between enhanced stability and increased hydroxyl content. The application of the alkaline silica sol in silicon wafer polishing fluids improves polishing rates and enhances surface flatness according to atomic force microscopy (AFM). In addition, electrochemical experiments validate the capability of this polishing solution to mitigate corrosion on silicon wafer surfaces. These findings hold significant implications for the advancement of chemical mechanical polishing techniques in the field of integrated circuit fabrication.","PeriodicalId":18966,"journal":{"name":"Nanomaterials","volume":null,"pages":null},"PeriodicalIF":4.4,"publicationDate":"2024-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11357041/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142080979","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synthesis of Highly Porous Lignin-Sulfonate Sulfur-Doped Carbon for Efficient Adsorption of Sodium Diclofenac and Synthetic Effluents. 用于高效吸附双氯芬酸钠和合成废水的高孔木质素-磺酸盐掺硫碳的合成。

IF 4.4 3区材料科学

Nanomaterials Pub Date : 2024-08-22 DOI: 10.3390/nano14161374

Glaydson S Dos Reis, Sarah Conrad, Eder C Lima, Mu Naushad, Gopinathan Manavalan, Francesco G Gentili, Guilherme Luiz Dotto, Alejandro Grimm

{"title":"Synthesis of Highly Porous Lignin-Sulfonate Sulfur-Doped Carbon for Efficient Adsorption of Sodium Diclofenac and Synthetic Effluents.","authors":"Glaydson S Dos Reis, Sarah Conrad, Eder C Lima, Mu Naushad, Gopinathan Manavalan, Francesco G Gentili, Guilherme Luiz Dotto, Alejandro Grimm","doi":"10.3390/nano14161374","DOIUrl":"10.3390/nano14161374","url":null,"abstract":"Herein, a novel sulfur-doped carbon material has been synthesized via a facile and sustainable single-step pyrolysis method using lignin-sulfonate (LS), a by-product of the sulfite pulping process, as a novel carbon precursor and zinc chloride as a chemical activator. The sulfur doping process had a remarkable impact on the LS-sulfur carbon structure. Moreover, it was found that sulfur doping also had an important impact on sodium diclofenac removal from aqueous solutions due to the introduction of S-functionalities on the carbon material's surface. The doping process effectively increased the carbon specific surface area (SSA), i.e., 1758 m2 g-1 for the sulfur-doped and 753 m2 g-1 for the non-doped carbon. The sulfur-doped carbon exhibited more sulfur states/functionalities than the non-doped, highlighting the successful chemical modification of the material. As a result, the adsorptive performance of the sulfur-doped carbon was remarkably improved. Diclofenac adsorption experiments indicated that the kinetics was better described by the Avrami fractional order model, while the equilibrium studies indicated that the Liu model gave the best fit. The kinetics was much faster for the sulfur-doped carbon, and the maximum adsorption capacity was 301.6 mg g-1 for non-doped and 473.8 mg g-1 for the sulfur-doped carbon. The overall adsorption seems to be a contribution of multiple mechanisms, such as pore filling and electrostatic interaction. When tested to treat lab-made effluents, the samples presented excellent performance.","PeriodicalId":18966,"journal":{"name":"Nanomaterials","volume":null,"pages":null},"PeriodicalIF":4.4,"publicationDate":"2024-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11357084/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142080947","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mechanical and Shape Memory Properties of Additively Manufactured Polyurethane (PU)/Halloysite Nanotube (HNT) Nanocomposites. 添加型聚氨酯 (PU)/ 合金纳米管 (HNT) 纳米复合材料的机械和形状记忆性能。

IF 4.4 3区材料科学

Nanomaterials Pub Date : 2024-08-22 DOI: 10.3390/nano14161373

Wendy Triadji Nugroho, Yu Dong, Alokesh Pramanik

引用次数: 0

In Situ, Nitrogen-Doped Porous Carbon Derived from Mixed Biomass as Ultra-High-Performance Supercapacitor. 混合生物质原位掺氮多孔碳作为超高性能超级电容器。

IF 4.4 3区材料科学

Nanomaterials Pub Date : 2024-08-21 DOI: 10.3390/nano14161368

Yuqiao Bai, Qizhao Wang, Jieni Wang, Shuqin Zhang, Chenlin Wei, Leichang Cao, Shicheng Zhang

{"title":"In Situ, Nitrogen-Doped Porous Carbon Derived from Mixed Biomass as Ultra-High-Performance Supercapacitor.","authors":"Yuqiao Bai, Qizhao Wang, Jieni Wang, Shuqin Zhang, Chenlin Wei, Leichang Cao, Shicheng Zhang","doi":"10.3390/nano14161368","DOIUrl":"10.3390/nano14161368","url":null,"abstract":"How to address the destruction of the porous structure caused by elemental doping in biochar derived from biomass is still challenging. In this work, the in-situ nitrogen-doped porous carbons (ABPCs) were synthesized for supercapacitor electrode applications through pre-carbonization and activation processes using nitrogen-rich pigskin and broccoli. Detailed characterization of ABPCs revealed that the best simple ABPC-4 exhibited a super high specific surface area (3030.2-3147.0 m2 g-1) and plentiful nitrogen (1.35-2.38 wt%) and oxygen content (10.08-15.35 wt%), which provided more active sites and improved the conductivity and electrochemical activity of the material. Remarkably, ABPC-4 showed an outstanding specific capacitance of 473.03 F g-1 at 1 A g-1. After 10,000 cycles, its capacitance retention decreased by only 4.92% at a current density of 10 A g-1 in 6 M KOH. The assembled symmetric supercapacitor ABPC-4//ABPC-4 achieved a power density of 161.85 W kg-1 at the maximum energy density of 17.51 Wh kg-1 and maintained an energy density of 6.71 Wh kg-1 when the power density increased to 3221.13 W kg-1. This study provides a mixed doping approach to achieve multi-element doping, offering a promising way to apply supercapacitors using mixed biomass.","PeriodicalId":18966,"journal":{"name":"Nanomaterials","volume":null,"pages":null},"PeriodicalIF":4.4,"publicationDate":"2024-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11357087/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142080992","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

ZIF-8-Based Nitrogen and Monoatomic Metal Co-Doped Pyrolytic Porous Carbon for High-Performance Supercapacitor Applications. 基于 ZIF-8 的氮和单原子金属共掺杂热解多孔碳用于高性能超级电容器应用。

IF 4.4 3区材料科学

Nanomaterials Pub Date : 2024-08-21 DOI: 10.3390/nano14161367

Xiaobo Han, Yihao Geng, Jieni Wang, Shuqin Zhang, Chenlin Wei, Leichang Cao, Shicheng Zhang

{"title":"ZIF-8-Based Nitrogen and Monoatomic Metal Co-Doped Pyrolytic Porous Carbon for High-Performance Supercapacitor Applications.","authors":"Xiaobo Han, Yihao Geng, Jieni Wang, Shuqin Zhang, Chenlin Wei, Leichang Cao, Shicheng Zhang","doi":"10.3390/nano14161367","DOIUrl":"10.3390/nano14161367","url":null,"abstract":"Metal-organic frameworks (MOFs) receive wide attention owing to their high specific surface area, porosity, and structural designability. In this paper, ZC-Ru and ZC-Cu electrodes loaded with monatomic Ru and Cu doped with nitrogen were prepared by pyrolysis, ion impregnation, and carbonization process using ZIF-8 synthesized by static precipitation as a precursor. ZC-Cu has a high specific surface area of 859.78 m2 g-1 and abundant heteroatoms O (10.04%) and N (13.9%), showing the specific capacitance of 222.21 F g-1 at 0.1 A g-1 in three-electrode system, and low equivalent series resistance (Rct: 0.13 Ω), indicating excellent energy storage capacity and electrical conductivity. After 10,000 cycles at 1 A g-1 in 6 M KOH electrolyte, it still has an outstanding capacitance retention of 99.42%. Notably, symmetric supercapacitors ZC-Cu//ZC-Cu achieved the maximum power density and energy density of 485.12 W·kg-1 and 1.61 Wh·kg-1, respectively, positioning ZC-Cu among the forefront of previously known MOF-based electrode materials. This work demonstrates the enormous potential of ZC-Cu in the supercapacitor industry and provides a facile approach to the treatment of transition metal.","PeriodicalId":18966,"journal":{"name":"Nanomaterials","volume":null,"pages":null},"PeriodicalIF":4.4,"publicationDate":"2024-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11357066/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142081004","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Influence of the Structure of Hydrothermal-Synthesized TiO₂ Nanowires Formed by Annealing on the Photocatalytic Reduction of CO₂ in H₂O Vapor. 退火形成的水热合成 TiO2 纳米线的结构对 H2O 蒸汽中 CO2 光催化还原的影响

IF 4.4 3区材料科学

Nanomaterials Pub Date : 2024-08-21 DOI: 10.3390/nano14161370

Andrey M Tarasov, Larisa I Sorokina, Daria A Dronova, Olga Volovlikova, Alexey Yu Trifonov, Sergey S Itskov, Aleksey V Tregubov, Elena N Shabaeva, Ekaterina S Zhurina, Sergey V Dubkov, Dmitry V Kozlov, Dmitry Gromov

引用次数: 0

MIL-Derived Hollow Tubulous-Shaped In₂O₃/ZnIn₂S₄ Z-Scheme Heterojunction for Efficient Antibacterial Performance via In Situ Composite. 通过原位复合实现具有高效抗菌性能的 MIL 制备的空心管状 In2O3/ZnIn2S4 Z 型异质结。

IF 4.4 3区材料科学

Nanomaterials Pub Date : 2024-08-21 DOI: 10.3390/nano14161366

Jiao Duan, Hui Zhang, Jie Zhang, Mengmeng Sun, Jizhou Duan

{"title":"MIL-Derived Hollow Tubulous-Shaped In2O3/ZnIn2S4 Z-Scheme Heterojunction for Efficient Antibacterial Performance via In Situ Composite.","authors":"Jiao Duan, Hui Zhang, Jie Zhang, Mengmeng Sun, Jizhou Duan","doi":"10.3390/nano14161366","DOIUrl":"10.3390/nano14161366","url":null,"abstract":"In this study, a hollow tubulous-shaped In2O3 derived from MIL (MIL-68 (In)) exhibited an enhanced specific surface area compared to MIL. To further sensitize In2O3, ZnIn2S4 was grown in situ on the derived In2O3. The 40In2O3/ZnIn2S4 composite (1 mmol ZnIn2S4 loaded on 40 mg In2O3) exhibited degradation rates of methyl orange (MO) under visible light (80 mW·cm-2, 150 min) that were 17.9 and 1.4 times higher than those of the pure In2O3 and ZnIn2S4, respectively. Moreover, the 40In2O3/ZnIn2S4 exhibited an obviously improved antibacterial performance against Pseudomonas aeruginosa, with an antibacterial rate of 99.8% after visible light irradiation of 80 mW cm-2 for 420 min. The 40In2O3/ZnIn2S4 composite showed the highest photocurrent density, indicating an enhanced separation of photogenerated charge carriers. Electron spin resonance results indicated that the 40In2O3/ZnIn2S4 composite generated both ·O2- and ·OH radicals under visible light, whereas ·OH radicals were almost not detected in ZnIn2S4 alone, suggesting the presence of a Z-scheme heterojunction between In2O3 and ZnIn2S4, thereby enhancing the degradation and antibacterial capabilities of the composite. This offers fresh perspectives on designing effective photocatalytic materials for use in antibacterial and antifouling applications.","PeriodicalId":18966,"journal":{"name":"Nanomaterials","volume":null,"pages":null},"PeriodicalIF":4.4,"publicationDate":"2024-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11356822/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142080940","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Construction of Iodine-Doped Carbon Nitride as a Metal-Free Nanozyme for Antibacterial and Water Treatment. 构建碘掺杂氮化碳作为用于抗菌和水处理的无金属纳米酶。

IF 4.4 3区材料科学

Nanomaterials Pub Date : 2024-08-21 DOI: 10.3390/nano14161369

Xinru Cai, Tongtong Xie, Linshan Luo, Xiting Li

{"title":"The Construction of Iodine-Doped Carbon Nitride as a Metal-Free Nanozyme for Antibacterial and Water Treatment.","authors":"Xinru Cai, Tongtong Xie, Linshan Luo, Xiting Li","doi":"10.3390/nano14161369","DOIUrl":"10.3390/nano14161369","url":null,"abstract":"Metal-free photocatalysis that produces reactive oxygen species (ROS) shows significant promising applications for environmental remediation. Herein, we constructed iodine-doped carbon nitride (I-CN) for applications in the photocatalytic inactivation of bacteria and the heterogeneous Fenton reaction. Our findings revealed that I-CN demonstrates superior photocatalytic activity compared to pure CN, due to enhanced light adsorption and a narrowed band gap. Antibacterial tests confirmed that I-CN exhibits exceptional antibacterial activity against both Escherichia coli and Staphylococcus aureus. The results showed that I-CN effectively generates superoxide radicals and hydroxyl radicals under light irradiation, resulting in enhanced antibacterial activity. In addition, I-CN can also be applied for a heterogeneous photo-Fenton-like reaction, achieving a high performance for the degradation of sulfamethoxazole (SMX), a typical antibiotic, via the photocatalytic activation of peroxymonosulfate (PMS). These results shed new light on the fabrication of metal-free nanozymes and their applications for disinfection and water decontamination.","PeriodicalId":18966,"journal":{"name":"Nanomaterials","volume":null,"pages":null},"PeriodicalIF":4.4,"publicationDate":"2024-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11357014/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142081000","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Self-Powered, Skin Adhesive, and Flexible Human-Machine Interface Based on Triboelectric Nanogenerator. 基于三电纳米发电机的自供电、皮肤粘附性和柔性人机界面。

IF 4.4 3区材料科学

Nanomaterials Pub Date : 2024-08-20 DOI: 10.3390/nano14161365

Xujie Wu, Ziyi Yang, Yu Dong, Lijing Teng, Dan Li, Hang Han, Simian Zhu, Xiaomin Sun, Zhu Zeng, Xiangyu Zeng, Qiang Zheng

{"title":"A Self-Powered, Skin Adhesive, and Flexible Human-Machine Interface Based on Triboelectric Nanogenerator.","authors":"Xujie Wu, Ziyi Yang, Yu Dong, Lijing Teng, Dan Li, Hang Han, Simian Zhu, Xiaomin Sun, Zhu Zeng, Xiangyu Zeng, Qiang Zheng","doi":"10.3390/nano14161365","DOIUrl":"10.3390/nano14161365","url":null,"abstract":"Human-machine interactions (HMIs) have penetrated into various academic and industrial fields, such as robotics, virtual reality, and wearable electronics. However, the practical application of most human-machine interfaces faces notable obstacles due to their complex structure and materials, high power consumption, limited effective skin adhesion, and high cost. Herein, we report a self-powered, skin adhesive, and flexible human-machine interface based on a triboelectric nanogenerator (SSFHMI). Characterized by its simple structure and low cost, the SSFHMI can easily convert touch stimuli into a stable electrical signal at the trigger pressure from a finger touch, without requiring an external power supply. A skeleton spacer has been specially designed in order to increase the stability and homogeneity of the output signals of each TENG unit and prevent crosstalk between them. Moreover, we constructed a hydrogel adhesive interface with skin-adhesive properties to adapt to easy wear on complex human body surfaces. By integrating the SSFHMI with a microcontroller, a programmable touch operation platform has been constructed that is capable of multiple interactions. These include medical calling, music media playback, security unlocking, and electronic piano playing. This self-powered, cost-effective SSFHMI holds potential relevance for the next generation of highly integrated and sustainable portable smart electronic products and applications.","PeriodicalId":18966,"journal":{"name":"Nanomaterials","volume":null,"pages":null},"PeriodicalIF":4.4,"publicationDate":"2024-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11356898/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142080929","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0