Materials Chemistry and Physics最新文献

{"title":"Synergistic effects of FeOOH–Mn@HC catalyst in peroxymonosulfate activation for antibiotic degradation","authors":"Madhu Kumari,&nbsp;Srushti Sapatnekar,&nbsp;Mrudula Pulimi","doi":"10.1016/j.matchemphys.2025.130934","DOIUrl":"10.1016/j.matchemphys.2025.130934","url":null,"abstract":"<div><div>This study investigates the degradation of oxytetracycline using a novel FeOOH–Mn@HC catalyst system, designed to enhance peroxymonosulfate activation for effective antibiotic removal from water sources. The catalyst was synthesized and structurally characterized using FT-IR, XRD, FE-SEM, BET, and EDX analyses, ensuring a comprehensive understanding of its physicochemical properties. Batch experiments were conducted to assess the catalytic performance under varying operational parameters, including initial OXY concentration, catalyst dosage, PMS concentration, pH, reaction temperature, and contact time. The optimal conditions were determined as an initial OXY concentration of 5 ppm, catalyst dosage of 100 mg/L, PMS concentration of 1 mM, pH 11, reaction temperature of 30 °C, and a contact time of 80 min, achieving a remarkable 99.9 % degradation efficiency within the first 80 min of reaction. Kinetic modeling confirmed the efficiency of FeOOH–Mn@HC in activating PMS to generate sulfate radicals, leading to the rapid breakdown of OXY. Toxicity analysis using ECOSAR indicated that the transformation products formed during degradation exhibited reduced toxicity compared to the parent compound. These findings highlight the catalyst's potential for sustainable water treatment applications, offering an effective strategy to mitigate antibiotic pollution. The study contributes to the advancement of environmentally friendly remediation approaches, ensuring the safety of water resources and addressing global concerns regarding pharmaceutical contaminants in aquatic environments.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"341 ","pages":"Article 130934"},"PeriodicalIF":4.3,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143867761","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}

{"title":"Effect of Cr2O3 purity on the microstructure and hardness of AlTiVCr high entropy alloy prepared by self-propagating high-temperature synthesis","authors":"Z. Dastjerdi ,&nbsp;M. Sharifitabar ,&nbsp;Mahdi Shafiee Afarani","doi":"10.1016/j.matchemphys.2025.130942","DOIUrl":"10.1016/j.matchemphys.2025.130942","url":null,"abstract":"<div><div>The present study reports the preparation of a hard AlTiVCr high-entropy alloy (HEA) by the self-propagating high-temperature synthesis (SHS) in the Cr₂O₃–V₂O₅–TiO₂–Al system. To reduce the production costs, various laboratory-grade and commercial-grade Cr₂O₃ were used as starting materials. Results demonstrated that the alloy was composed of a solid solution phase with a BCC crystal structure, while Al₂O₃ was the main phase in the slag. Microstructure characterization confirmed the development of a Ti₃Al intermediate phase in the microstructure of the alloys prepared using the laboratory-grade Cr₂O₃. However, utilizing the commercial-grade Cr₂O₃ with an S impurity altered the type of secondary phase to TiS₂ and resulted in a significant grain refinement of the alloy. The roasting heat treatment of the primary Cr₂O₃, as well as the addition of 5 wt% CaO flux to the reactants did not eliminate the S impurity. The hardness and the density of the prepared alloy were evaluated between 608 and 863 HV and 4660–5059 kg/m³, respectively. These results confirmed that the SHS reaction is a facile method to obtain a lightweight AlTiVCr alloy with an extreme hardness.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"341 ","pages":"Article 130942"},"PeriodicalIF":4.3,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143867763","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}

{"title":"Highly efficient antimicrobial coated surfaces with copolymers of guanylated-and natural product derived monomers","authors":"Mónica C.S. Fernandes ,&nbsp;Rita Branco ,&nbsp;P. Pereira ,&nbsp;Jorge F.J. Coelho ,&nbsp;Paula V. Morais ,&nbsp;Arménio C. Serra","doi":"10.1016/j.matchemphys.2025.130869","DOIUrl":"10.1016/j.matchemphys.2025.130869","url":null,"abstract":"<div><div>A series of copolymers mimicking antimicrobial peptides (AMPs) were synthesized by incorporating guanidine as the polar component and bio-based hydrophobic natural products such as thymol, menthol, tropolone, and <em>β</em>-citronellol as non-polar components. These copolymers were applied as antimicrobial coatings to glass surfaces pre-treated with a polyurethane-based waterborne varnish. The antimicrobial activity of the coatings was evaluated against <em>Staphylococcus aureus</em> (Gram-positive) and <em>Escherichia coli</em> strains (Gram-negative)<em>,</em> and subsequently the most efficient coating was assessed for a <em>Pseudomonas aeruginosa</em> DSM1117 strain. Cytotoxicity tests with normal human dermal fibroblast (NHDF) cells were carried out to evaluate the cytocompatibility. The copolymer coatings (0.18 mg/cm²) showed excellent antimicrobial activity and minimal cytotoxicity, demonstrating their potential as effective antimicrobial materials for application on surface coatings.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"341 ","pages":"Article 130869"},"PeriodicalIF":4.3,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143860482","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}

{"title":"Microwave-assisted synthesis of fish bone-like CuBr@Au microcrystals and their electrochemical sensor performances","authors":"Xinmei Liu,&nbsp;Guobin Zhu,&nbsp;Wenglong Yang,&nbsp;Xingwang Sun","doi":"10.1016/j.matchemphys.2025.130931","DOIUrl":"10.1016/j.matchemphys.2025.130931","url":null,"abstract":"<div><div>An electrochemical sensor with low cost, multifunctionality, wide detection range and high sensitivity were desirable. This work provided a novel perspective for the design of low-cost sensor materials with enhanced performance. The sensor performances of cost-effective CuBr were optimized by morphology optimization and surface modification. For the first time, a microwave-assisted synthesis of fish bone-like CuBr was provided. The unique morphology increased the specific surface area, which enabled the fish bone-like CuBr a superior sensor performance. Compared to CuBr synthesized via traditional hydrothermal methods [CuBr(s)], bone-like CuBr by microwave-assisted method [CuBr(w)] demonstrated 3.28-folds sensitivity toward nitrite. To further enhance the sensitivity, we futher modified the CuBr surface with Au nanocrystals. The Au modification significantly accelerated the rate of electron transfer, thereby optimizing the nitrite sensor performances. The nitrite sensor sensitivity by CuBr(w) was enhanced by optimizing the Au loading rate, achieving a sensitivity up to 106.72 μA/mM·cm². As applied in the glucose sensor, the detection range by CuBr@Au(w)-7 % extended from 0 to 100.0 mM by chronoamperometric measurement was much wider than previous works. Considering the wide detection range in glucose concentration analysis, the CuBr@Au(w) was further utilized to accurately determine sugar concentrations in Pepsi Cola.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"341 ","pages":"Article 130931"},"PeriodicalIF":4.3,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143867760","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}

{"title":"Role of montmorillonite and other clays in the prebiotic reaction of d-ribose and amino acid","authors":"Lagamawwa Hipparagi ,&nbsp;Raksha Umesh ,&nbsp;Gangothri M. Venkataswamy ,&nbsp;Nanishankar V. Harohally","doi":"10.1016/j.matchemphys.2025.130924","DOIUrl":"10.1016/j.matchemphys.2025.130924","url":null,"abstract":"<div><div>Ribose stability and availability is prerequisite for the prebiotic formation of RNA according to RNA world hypothesis. The growing body of studies is suggesting the simultaneous evolution of RNA and protein. In addition, RNA peptide world hypothesis is also receiving credible evidences. In view of the identification of these prebiotic scenario, it is difficult to rule out interaction of ribose and amino acids in early Earth. In this paper, we reveal the role of prebiotically plausible clay catalysts consisting of montmorillonite/bentonite/kaolinite in prebiotic reaction of ribose with amino acids. The current study demonstrates that montmorillonite/bentonite/kaolinite catalyze partial Amadori reaction of ribose and amino acids in solid state. On the other hand, in aqueous state, montmorillonite/bentonite/kaolinite remain more or less as spectator and hardly any reactivity is observed between ribose and amino acids. To get the insight on the role of montmorillonite/bentonite/kaolinite in the reaction of ribose and amino acid in solid state and aqueous solution, a reactivity study was also conducted in methanol. The performed study uncovered the factors responsible for lability of ribose towards amino acids in solid state and stability of ribose towards amino acids in aqueous solution.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"341 ","pages":"Article 130924"},"PeriodicalIF":4.3,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143877595","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}

{"title":"Investigating abrasive water jet drilling of YSZ-Coated inconel 718: A surface topography and morphology study","authors":"Balaji Vasudevan ,&nbsp;Lenin Nagarajan ,&nbsp;Md Irfanul Haque Siddiqui ,&nbsp;Murugu Nachippan N ,&nbsp;Sarangapani Palani ,&nbsp;Yuvaraj Natarajan","doi":"10.1016/j.matchemphys.2025.130926","DOIUrl":"10.1016/j.matchemphys.2025.130926","url":null,"abstract":"<div><div>This study investigates the effects of abrasive water jet (AWJ) drilling parameters on the surface characteristics of Yttrium Stabilized Zirconia (YSZ)-coated Inconel 718 superalloy. The influence of water jet pressure (175–325 MPa), abrasive flow rate (250–400 g/min), and jet impact angle (0°–45°) on surface integrity was examined. Surface analysis was performed using a Talysurf CCI Lite instrument and Hitachi S–3400 N scanning electron microscope. Results indicate that minimum process parameters with a 15° piercing angle reduced Sa to 1.451 μm and Sz to 9.140 μm, while maximum parameters at 30° increased Sa to 7.080 μm and Sz to 38.670 μm. SEM analysis revealed that pierced holes were free from thermal defects, with no evidence of cracks or delamination in the ceramic layer.1 Optimizing AWJ drilling parameters, particularly the piercing angle, can significantly enhance the surface quality of YSZ-coated Inconel 718. This study provides insights for improving cooling efficiency and extending component life in jet engine applications.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"341 ","pages":"Article 130926"},"PeriodicalIF":4.3,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143867762","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}

{"title":"An ultra-slippery transparent coating with waterproofing and heat dissipation functions for electronic devices","authors":"Hailong Liu ,&nbsp;Furong Tao ,&nbsp;Hairui Ji ,&nbsp;Hailong Zhang ,&nbsp;Libin Liu","doi":"10.1016/j.matchemphys.2025.130882","DOIUrl":"10.1016/j.matchemphys.2025.130882","url":null,"abstract":"<div><div>Developing the coating with superior waterproofing and heat dissipation abilities can prevent electronics from contamination and heat damage. However, most of these coatings show poor transparency and antifouling ability. In this study, a multifunctional ultra-slippery transparent coating (STC) has been developed by simply spraying suspensions consisting of poly(perfluorodecyl acrylate-co-isobornyl acrylate) followed by the curing treatment at room temperature. The thickness of the coating is only 1.5 μm measured by scanning electron microscope. A high transparency of 90 % is observed by UV–vis–NIR. X-ray photoelectron spectroscopy and fourier transform infrared spectroscopy demonstrate successful formation of STC and explain low surface energy. The slippery surface makes the rapid sliding of water and oil droplets when tilted at only 8°. The surface of the coating can be cleaned by water and oil-based liquids due to its excellent slippery property. In addition, the heat dissipation of electronic devices was improved after coating STC. High transparency makes it easier to observe the working condition of precision equipment. Also, the STC protects the electronic components from short circuit destroying during for underwater operation. Therefore, the prepared STC shows great promise for various electronic devices due to its easy fabrication and versatile performance.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"341 ","pages":"Article 130882"},"PeriodicalIF":4.3,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143877596","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}

{"title":"Nanometer-scale interface instability in silicon oxide/polymer sandwich structures detected after two years","authors":"Martin Branecky ,&nbsp;Oleksandr Romanenko ,&nbsp;Naghmeh Aboualigaledari ,&nbsp;Tomas Plichta ,&nbsp;Jiri Novak ,&nbsp;Anna Mackova ,&nbsp;Vladimir Cech","doi":"10.1016/j.matchemphys.2025.130935","DOIUrl":"10.1016/j.matchemphys.2025.130935","url":null,"abstract":"<div><div>Nonthermal plasma-deposited glassy silica is often used as a gas barrier film to protect polymer material in many applications. This study revealed that glassy silica is a slightly porous material (3 vol%) with small pores (2.5 nm) formed during thin film deposition. The infrared spectrum shows that the as-deposited plasma silica contains gaseous carbon dioxide, which is likely encapsulated in the pores. It can be assumed that these CO₂ molecules diffuse from the silica layer through the silicon oxide/polymer interface into the protected polymer material. The low crosslinked polymer material is then locally oxidized by CO₂, which changes its chemical and physical properties. This means that the silicon oxide/polymer interface gradually moves into the polymer material over time. CO₂ diffusion is therefore considered responsible for a shift of the silicon oxide/polymer interface by 30–35 nm after 27 months.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"341 ","pages":"Article 130935"},"PeriodicalIF":4.3,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143874996","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}

{"title":"A theoretical and experimental study on indentation creep with x-silica addition to an Al–8Zn composite alloy, based on Adaptive Neuro-Fuzzy Inference System (ANFIS)","authors":"Eman AbdElRhiem ,&nbsp;Shereen M. Abdelaziz ,&nbsp;Yosry F. Barakat ,&nbsp;Saad G. Mohamed ,&nbsp;H.I. Lebda","doi":"10.1016/j.matchemphys.2025.130937","DOIUrl":"10.1016/j.matchemphys.2025.130937","url":null,"abstract":"<div><div>This research is based on the significance of using the adaptive neuro-fuzzy inference system (ANFIS) to advance scientific study and integrate the theoretical and experimental domains. (ANFIS) is one of the soft computing techniques that play a significant role in modeling. This model studies the effects of adding nanosilica particles and aging temperatures on the indentation creep behavior of Al–8Zn alloys. The optimal ANFIS model configuration will be chosen by comparing the RMSE values for different types and the number of membership functions (MFs) assigned to each ANFIS structure. The best results were found as root mean square error (RMSE) is <span><math><mrow><mn>1.1</mn><mo>×</mo><msup><mn>10</mn><mrow><mo>−</mo><mn>8</mn></mrow></msup></mrow></math></span>, R-squared (R²) is 0.9742, and mean absolute error (MAE) is <span><math><mrow><mn>3.3</mn><mo>×</mo><msup><mn>10</mn><mrow><mo>−</mo><mn>5</mn></mrow></msup></mrow></math></span> by using the Gbellmf type with four MFs. Vickers hardness measurements were used to evaluate the indentation creep behavior of Al–8Zn-x nanoSiO₂, x= (0, 0.5, 1, 1.5, 2, 2.5, 3) wt.% under different aging temperature ranges from 398 to 478 K for 2 h, dwell times from 10 to 90 s, and a constant load of 200 gm. A scanning electron microscope (SEM) with an energy dispersive spectroscope (EDS) and X-ray diffraction (XRD) was used to study the change in microstructure. Increasing nanoSiO₂ concentration from 0.5 % to 1 % decreased minimum creep rates, but increasing nanoSiO₂ concentration from 1.5 % to 2 % increased minimum creep rates across all aging temperatures. Values of the stress exponent in the range of 5.9–8.82 decrease as the concentration of nanoSiO₂ rises to 1, and then they increase as the concentration of nanoSiO₂ rises, with activation energy ranging from 92.8 kJ/mol to 99.8 kJ/mol. ANFIS was utilized to confirm the experimental results further, and the method was also applied to predict the minimum creep rates at 2.5 % and 3 %. This study suggests that the ANFIS technique is a useful method for forecasting mechanical properties and deformation mechanisms of materials.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"341 ","pages":"Article 130937"},"PeriodicalIF":4.3,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143877594","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}

{"title":"Heavy metal removal from wastewater by SnS thin films deposited by the modified SILAR technique at ambient temperature","authors":"N. Aparna,&nbsp;Reshma S. Philip,&nbsp;Meril Mathew","doi":"10.1016/j.matchemphys.2025.130939","DOIUrl":"10.1016/j.matchemphys.2025.130939","url":null,"abstract":"<div><div>This study investigates the effectiveness of tin monosulfide (SnS) thin films in removing heavy metals from wastewater. The SnS thin films were deposited at room temperature using a modified version of the successive ionic layer adsorption and reaction (SILAR) method. The deposited samples were confirmed to be SnS through XRD, XPS, and EDAX analysis. The XRD analysis revealed that the SnS thin films are polycrystalline with an orthorhombic crystal structure. Variations in the number of SILAR cycles resulted in changes in film thickness, crystallinity, crystallite size, and morphology. The SnS thin films were utilized to remove heavy metals from wastewater. UV–visible spectroscopic examination and ICP-OES analysis demonstrated that SnS thin films effectively removed chromium (Cr(VI)) from contaminated water. Under irradiation from a xenon lamp, the SnS thin films eliminated nearly 99 % of Cr(VI) from a 100 ml solution (initial concentration - 25 mg/l, pH - 2.5) within 80 min. Additionally, the SnS thin films removed 97 % of Cr(VI) under ambient light conditions and 94 % in dark conditions. The removal of Cr(VI) by the SnS thin films was identified as an adsorption-reduction process, with XPS analysis of the spent sample confirming the formation of Cr(III). The SnS thin films exhibited high efficiency, easy recovery, and reusability for Cr(VI) removal. The study also investigated the impact of several factors on chromium removal efficiency, including initial pollutant concentration, solution pH and salinity, and speed of magnetic stirring. Furthermore, the selectivity of SnS thin films was demonstrated through their efficiency in removing cadmium and lead. The thin films removed 72 % of cadmium in dark conditions and 82 % under illumination within 40 min. The lead removal rates were 78 % in dark conditions and 99.8 % in illuminated conditions within 40 min. This study highlights the advantages of using thin films for water remediation compared to nanoparticles.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"341 ","pages":"Article 130939"},"PeriodicalIF":4.3,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143874797","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}