Results in Surfaces and Interfaces最新文献

{"title":"Insight into the effect of Nb modification towards the wide-temperature NH3-SCR performance of ceria catalyst","authors":"Xin Liu ,&nbsp;Jinshan Zhang ,&nbsp;Xin Wang ,&nbsp;Xu Zheng ,&nbsp;Yong Du ,&nbsp;Meichen Pan ,&nbsp;Chen Liu ,&nbsp;Hisahiro Einaga ,&nbsp;Hajime Hojo ,&nbsp;Pengwei Huo","doi":"10.1016/j.rsurfi.2025.100695","DOIUrl":"10.1016/j.rsurfi.2025.100695","url":null,"abstract":"<div><div>With the increasingly stringent requirements for the treatment of industrial nitrogen oxides (NO_x), ammonia selective catalytic reduction (NH₃-SCR) has emerged as the most widely adopted denitrification technology in industrial settings. A series of CeNbO_x nano-catalyst with varying Nb compositions were synthesized via the solvothermal method for NH₃-SCR. All the CeNbO_x samples presented considerable NO_x conversion, exceeding 80 % within a broad temperature window of 200–350 °C. In addition, the optimal sample shown high stability and strong resistance to SO₂/H₂O at 225 °C. The influence of Nb element on structural properties of the CeNbO_x samples was investigated and elucidated using multiple characterization techniques. The NH₃-SCR process was further studied by in situ infrared Fourier transform spectroscopy (in situ <em>FTIR</em>), temperature-programmed reduction with H₂ (H₂-TPR) and X-ray photoelectron spectroscopy (XPS), which revealed that the improved NO_x conversion can be attributed to the role of Nb in suppressing the crystal growth of CeO₂, promoting the adsorption of oxygen species, increasing the distribution of Ce and improving the redox ability.</div></div>","PeriodicalId":21085,"journal":{"name":"Results in Surfaces and Interfaces","volume":"22 ","pages":"Article 100695"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145938598","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A first principle DFT investigation on covalent functionalization of graphyne as a potential nanocarrier","authors":"M. Joshna Godlieb ,&nbsp;J. Sneha ,&nbsp;R. Akash,&nbsp;V. Abinaya,&nbsp;A. Sakthi Balaji,&nbsp;D. John Thiruvadigal,&nbsp;R.M. Hariharan,&nbsp;K. Janani Sivasankar","doi":"10.1016/j.rsurfi.2025.100706","DOIUrl":"10.1016/j.rsurfi.2025.100706","url":null,"abstract":"<div><div>In this investigation, Graphyne's efficiency as a nanocarrier is examined using calculations from first principle density functional theory. 2D Graphyne is a carbon allotrope made up of sp and sp² bonded carbon atoms in a lattice. Because of its remarkable properties like biocompatibility, low toxicity, high thermal stability and large surface area, it has recently captivated many researchers with its promising applications among various fields, particularly as a nanocarrier in the drug delivery systems. To enhance the adsorption capacity of the pristine γ-graphyne system to be used as a nanocarrier, it is functionalized with Hydroxyl (-OH), carbonyl(C=O) and thiol(R-SH). The chemical potential and total energy of γ-graphyne comes to be −4.67 eV and −16936 eV respectively. With an energy gap of 0.45 eV, the most stable γ-graphyne's band structure indicates semiconducting behaviour. The γ-graphyne monolayer's electronic states exhibit almost symmetric behaviour with regard to valence and conduction band energies within an energy range of ±1 eV. Hydroxyl functionalized systems exhibit higher binding energy and polar covalent character in comparison with other functionalized counterparts and pave the way to be used as an effective nanocarrier.</div></div>","PeriodicalId":21085,"journal":{"name":"Results in Surfaces and Interfaces","volume":"22 ","pages":"Article 100706"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146037338","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Corrigendum to ‘ToF-SIMS spectra analysis of pristine and neutron irradiated single crystal tungsten’ [Results Surf. Interfaces Volume 20 August 2025 100577]","authors":"Gabriel Parker ,&nbsp;Tobias K. Misicko ,&nbsp;Tanguy Teriler ,&nbsp;Yang Xiao ,&nbsp;Xiao-Ying Yu","doi":"10.1016/j.rsurfi.2025.100698","DOIUrl":"10.1016/j.rsurfi.2025.100698","url":null,"abstract":"","PeriodicalId":21085,"journal":{"name":"Results in Surfaces and Interfaces","volume":"22 ","pages":"Article 100698"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147395786","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"BiVO4/AgFeO2 n-n heterojunction photocatalyst: Synergistic degradation of emerging contaminants (ciprofloxacin and methylene blue)","authors":"Nandana Sadanandan ,&nbsp;K. Bharathi ,&nbsp;G. Bakiyaraj ,&nbsp;J. Archana ,&nbsp;M. Navaneethan","doi":"10.1016/j.rsurfi.2025.100692","DOIUrl":"10.1016/j.rsurfi.2025.100692","url":null,"abstract":"<div><div>Photocatalytic degradation is an essential and promising technology for environmental remediation and sustainable chemistry. The synthesized AgFeO₂ (AFO) particles, via simple co-precipitation, and their composite structures with BiVO₄ (BVO), fabricated through hydrothermal processes, demonstrate enhanced photocatalytic activity. Structural analyses confirm the successful integration of hexagonal AFO particles within the monoclinic BVO matrix without lattice distortion. The synthesized BiVO₄/10 %AgFeO₂ (BA10 %) composite exhibited significantly enhanced properties, including a 125 % increase in specific surface area and an approximate 16.44 % reduction in pore radius compared to pure BVO. Optical characterization reveals a broadened visible-light absorption spectrum and improved charge carrier separation in the BVO/AFO composites, attributed to the synergistic interaction between the two semiconductors. PL spectroscopy confirmed reduced charge carrier recombination in BA10 %, consistent with its enhanced photocatalytic activity. This improved performance stems from forming a well-defined BVO/AFO heterojunction, which facilitates efficient charge carrier separation, thereby increasing the generation of reactive species like hydroxyl radicals and holes, as confirmed by scavenger tests. The BA10 % composite demonstrated superior degradation efficiency, approximately doubling that of pure BVO for ciprofloxacin (CPFX) and achieving nearly 98 % degradation for methylene blue (MB).</div></div>","PeriodicalId":21085,"journal":{"name":"Results in Surfaces and Interfaces","volume":"22 ","pages":"Article 100692"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145938600","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Waste-to-adsorbent strategy: Bagasse-derived hemicellulose functionalized graphene oxide for the efficient removal of chlortetracycline from aqueous media","authors":"Monira Akter Somapti ,&nbsp;Md Humayun Kabir ,&nbsp;Md Kamrul Hasan ,&nbsp;Nosheen Tabassum Dipannita ,&nbsp;Fahima Mojumder ,&nbsp;Sabina Yasmin","doi":"10.1016/j.rsurfi.2025.100702","DOIUrl":"10.1016/j.rsurfi.2025.100702","url":null,"abstract":"<div><div>A sustainable waste-to-adsorbent strategy was developed using hemicellulose functionalized graphene oxide (HC-GO) for the adsorption-based removal of the antibiotic chlortetracycline (CTC) from water, where hemicellulose(HC) was extracted from discarded sugarcane bagasse and the precursor of graphene oxide (GO) was graphite recovered from waste dry cell batteries. The synthesized HC-GO was characterized by SEM-EDS, TEM, XRD, FTIR and DLS which confirmed the successful preparation of HC-GO from waste materials. Batch adsorption experiments were conducted to optimize the operational parameters, revealing that at pH 5 with an adsorbent dosage of 0.1 g L⁻¹, an initial CTC concentration of 0.2 mg L⁻¹, and an equilibrium time of 15 min, over 98 % of CTC was removed from water. The adsorption process was well described by the Freundlich isotherm and followed Pseudo-second-order kinetics. Thermodynamic analysis showed the adsorption process was exothermic and spontaneous over the temperature range of 30–50 °C, indicating a thermodynamically favorable process. The HC-GO adsorbent demonstrated excellent reusability over eight cycles which highlights its potential as a cost-effective material. The novelty of this study lies in valorizing sugarcane bagasse and waste dry cell batteries to produce a low-cost, green adsorbent. Overall, HC-GO exhibits outstanding adsorption performance, sustainable reusability, and practical applicability for mitigating antibiotic contamination in aqueous environments.</div></div>","PeriodicalId":21085,"journal":{"name":"Results in Surfaces and Interfaces","volume":"22 ","pages":"Article 100702"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145938601","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Facile one-pot synthesis of aliphatic thiol-derived nickel nanoclusters used for luminescent and dye degradation applications","authors":"Ramadurai Murugan ,&nbsp;Raghunandhakuamar Subramanian","doi":"10.1016/j.rsurfi.2025.100674","DOIUrl":"10.1016/j.rsurfi.2025.100674","url":null,"abstract":"<div><div>Nickel nanoclusters (NiNCs) were successfully synthesized via a one-pot method, with 2,3-dimercaptosuccinic acid (DMSA) effectively stabilizing the surface through interaction with Ni. Computational analysis of DMSA was performed using DFT at the B3LYP/3-21G level, confirming structural optimisation and stable geometry. The sulfur (–SH) and carboxyl groups exhibited strong electron-donating and withdrawing tendencies, with HOMO and LUMO values of 0.24915 and 0.18701 respectively, contributing to reactivity and complexation potential. UV–Vis absorption and fluorescence studies confirmed optical activity, with NiNCs displaying strong photoluminescence and a quantum yield of 48 %, attributed to quantum confinement and surface passivation. Cytotoxicity studies revealed over 85 % cell viability up to 100 nM, confirming excellent biocompatibility, while fluorescence microscopy showed minimal morphological alterations. HRTEM analysis indicated well-dispersed NiNCs under 5 nm. Furthermore, NiNCs demonstrated significant dye degradation efficiency within the visible absorbance range (2.3201 × 10⁻³ to 6.0741 × 10⁻⁶ μM), indicating strong photocatalytic potential. Overall, these findings highlight the dual role of aliphatic thiols in stabilizing NiNCs for sustainable both bioimaging and dye degradation applications.</div></div>","PeriodicalId":21085,"journal":{"name":"Results in Surfaces and Interfaces","volume":"22 ","pages":"Article 100674"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145693377","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Surface functionalization of medical-grade polyvinyl chloride treated with ammonia plasma","authors":"Rok Zaplotnik ,&nbsp;Nina Recek ,&nbsp;Gregor Primc ,&nbsp;Andrej Gyergyek ,&nbsp;Marian Lehocky ,&nbsp;Miran Mozetič ,&nbsp;Alenka Vesel","doi":"10.1016/j.rsurfi.2026.100727","DOIUrl":"10.1016/j.rsurfi.2026.100727","url":null,"abstract":"<div><div>Polyvinyl chloride (PVC) is often the material of choice for the synthesis of various components used in medical practice, particularly catheters. As-synthesized components may not exhibit appropriate biocompatibility, so the surface should be modified or coated. Amine groups were grafted onto the PVC surface by brief exposure to ammonia plasma generated by a low-pressure inductively coupled radiofrequency discharge in E mode (30 Pa, 25 W). The treatment time ranged from 0.5 to 300 s. The measured density of charged particles was approximately 2 ± 1 × 10¹⁵ m⁻³ and the flux of NH and NH₂ radicals was approximately 3 × 10²³ m⁻²s⁻¹. X-ray photoelectron spectroscopy (XPS) was used to study the evolution of nitrogen-containing functional groups versus the treatment time. The chlorine concentration was not affected much, but the nitrogen concentration in the surface film increased logarithmically with increasing treatment time. The N concentration was approximately 2 at.% after 0.5 s of treatment and reached approximately 9 at.% after 300 s. Some PVC samples were also pretreated with hydrogen plasma. The pretreatment was beneficial for rapid functionalization, as the N concentration reached 6 at.% after 0.5 s of plasma treatment, but the concentration after prolonged treatment was the same as that for a single-step ammonia plasma treatment. High-resolution XPS Cl2p spectra revealed significant modification of the chlorine binding, especially after pretreatment with hydrogen plasma. A possible explanation for this modification is the formation of Cl⁻ binding states, resulting from bond scission by the absorption of VUV radiation in the PVC surface film.</div></div>","PeriodicalId":21085,"journal":{"name":"Results in Surfaces and Interfaces","volume":"22 ","pages":"Article 100727"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146077485","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Magnetically retrievable PANI-Fe3O4 nanocomposite for efficient dye removal from tannery wastewater: Mechanistic insights and performance assessment","authors":"Nousin Yesmin Muna,&nbsp;Sadia Mim,&nbsp;Anamul Haque Jewel,&nbsp;Md Suzaul Karim,&nbsp;Md Elias Uddin","doi":"10.1016/j.rsurfi.2026.100710","DOIUrl":"10.1016/j.rsurfi.2026.100710","url":null,"abstract":"<div><div>Leather dyeing techniques create highly pigmented and toxic effluents that pose ecological problems due to synthetic azo dyes and organic loading. This study will create, investigate, and use a magnetically separable polyaniline-Fe₃O₄ nanocomposite to remove mixed anionic pigments from tannery wastewater. The proposed material improves surface activity and simplifies post-treatment separation over polymer-supported composites by combining conductive polymer functionality with magnetic recovery. In situ oxidative polymerization generated the nanocomposite, which FT-IR, XRD, and SEM examinations confirmed successful synthesis, structural integrity, and many surface-active sites. Batch adsorption studies showed that pH, adsorbent dosage, contact duration, and settling time optimally removed dye at 89.45 % at pH 5.6 and 0.30 g. In adsorption studies, the process followed the Langmuir isotherm (R² = 0.9954) and pseudo-second-order kinetics (R² = 0.9980). The Van't Hoff plot (R² = 0.9916) shows endothermic adsorption (ΔH° = +33.931 kJ mol⁻¹) with increased disorder (ΔS° = +28.582 J K⁻¹ mol⁻¹) and negative ΔG° at higher temperatures, indicating entropy-driven physisorption enhanced by diffusion and binding. FT-IR band shifts and surface morphology changes also confirm monolayer physisorption on a uniform surface, with electrostatic interactions, π-π stacking, and hydrogen bonding as the primary removal mechanisms. After optimal treatment, COD dropped 48.13 %, BOD 18.99 %, and salinity 28.65 %. Thus, the produced nanocomposite improves effluent quality significantly. The adsorbent also exhibited above 70 % regeneration effectiveness across multiple adsorption-desorption cycles. Therefore, this study uniquely combines structural characterization and adsorption mechanism investigation for a magnetically recoverable PANI-Fe₃O₄ nanocomposite adsorbent in real tannery effluents.</div></div>","PeriodicalId":21085,"journal":{"name":"Results in Surfaces and Interfaces","volume":"22 ","pages":"Article 100710"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145977210","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Studies on biomass based adsorptive membrane for biomolecule separation: Quercetin and rutin","authors":"Anannya Kalita ,&nbsp;Rituraj Talukdar ,&nbsp;Lina Kalita ,&nbsp;Aakaansha Saikia ,&nbsp;Monali Dutta Saikia","doi":"10.1016/j.rsurfi.2025.100705","DOIUrl":"10.1016/j.rsurfi.2025.100705","url":null,"abstract":"<div><div>As a step towards the development of adsorptive membrane separation processes for recovery of quercetin and rutin from aqueous extract, mixed matrix membranes comprising polysulfone and fruit peel particles have been prepared and characterized. Adsorption equilibrium and kinetics of both molecules have been systematically studied. Characterization of the membranes has been done by using BET, FTIR, SEM and TGA techniques. The prepared membranes are observed to have pore sizes in the range 0.0001–50 μm, determined from SEM data. The molecular diameters of quercetin and rutin, as calculated to be 0.0008 and 0.001 μm are found larger than the pore diameters of the membranes which conform to Microfiltration and Ultrafiltration. For adsorptive membrane separation to be effective the criteria should be assessed from high equilibrium adsorption, comparable to the biomolecules reported for other polymeric systems. Even for adsorptive membrane the solute transport across the pores are predictable by Hagen- Poiseuille Equation. From the result of studies, it can be inferred that adsorptive membrane principle can be exploited to develop a membrane based process for separation of flavonoids.</div></div>","PeriodicalId":21085,"journal":{"name":"Results in Surfaces and Interfaces","volume":"22 ","pages":"Article 100705"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145977208","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Influence of current density on the microstructural, mechanical, and electrochemical properties of hydroxyapatite coatings fabricated by micro-arc oxidation","authors":"Erfan Mohammadipour","doi":"10.1016/j.rsurfi.2026.100712","DOIUrl":"10.1016/j.rsurfi.2026.100712","url":null,"abstract":"<div><div>Hydroxyapatite (HA) coatings were fabricated on Ti6Al4V alloy by micro-arc oxidation (MAO) to enhance implant performance. The influence of current density on the structural, mechanical, and electrochemical properties of the coatings was systematically investigated. Surface morphology, topography, phase constituents, and elemental composition were characterized by scanning electron microscopy (SEM), atomic force microscopy (AFM), X-ray diffraction (XRD), and energy-dispersive X-ray spectroscopy (EDS), while corrosion behavior was evaluated using electrochemical impedance spectroscopy (EIS) in simulated body fluid (SBF). Mechanical properties were determined by nanoindentation testing. Quantitative microstructural analysis revealed that increasing the current density from 100 to 300 mA/cm² resulted in a significant coarsening of the surface structure, with the average pore size increasing from 1.92 μm to 5.40 μm, surface roughness (<span><math><mrow><msub><mi>R</mi><mi>a</mi></msub></mrow></math></span>) rising from 0.11 μm to 0.31 μm, and the total surface porosity rising from 9.45 % to 17.25 %. Additionally, the Ca/P ratio slightly increased (1.61–1.72), reaching values close to the stoichiometric ratio of hydroxyapatite (1.67), with XRD confirming the in-situ synthesis of crystalline HA. Coatings formed at lower current density exhibited superior corrosion resistance, with the highest polarization resistance of 58.46 kΩ cm². Conversely, coatings produced at higher current densities demonstrated improved mechanical performance, with hardness increasing from 1.12 to 1.56 GPa and elastic modulus from 51 to 73 GPa. These findings confirm that current density is a decisive factor in controlling the balance between corrosion protection and mechanical durability of MAO-derived HA coatings, providing valuable guidance for optimizing bioactive coatings for orthopedic and dental implants.</div></div>","PeriodicalId":21085,"journal":{"name":"Results in Surfaces and Interfaces","volume":"22 ","pages":"Article 100712"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146037340","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}