Colloids and Surfaces A: Physicochemical and Engineering Aspects最新文献

{"title":"Carbon dots modified hydrange-shaped ZnCo(OH)F used as a flexible electrode for sensitive detection of dopamine and uric acid","authors":"Linghui Cao,&nbsp;Yuanxinyi Zhou,&nbsp;Tianyu Shen,&nbsp;Aijuan Xie ,&nbsp;Shiping Luo ,&nbsp;Baozhu Yang","doi":"10.1016/j.colsurfa.2024.135695","DOIUrl":"10.1016/j.colsurfa.2024.135695","url":null,"abstract":"<div><div>Dopamine (DA), widely recognized as the most prevalent catecholamine neurotransmitter in the brain, functions as a vital regulator of various physiological processes within the central nervous system. Meanwhile, uric acid (UA) serves as the terminal product of purine metabolism, and hyperuricemia emerges as a significant risk factor for gout, with a steep escalation in risk as blood uric acid levels surge. Consequently, monitoring the concentrations of DA and UA in biological fluids is crucial not only for the treatment of related disorders but also for enhancing disease prevention strategies. In this work, the blooming hydrangea shaped ZnCo(OH)F/carbon dots (CDs) composite was grown on carbon cloth (CC) substrate by a simple hydrothermal method, which was used as a flexible sensor for the detection of DA and UA. The unique open structure and morphologic adjustment strategy of ZnCo(OH)F/CDs/CC provided a large surface area and highly exposed active site. After screening the experimental variables that affect the sensor performance, the optimal ZnCo(OH)F/CDs/CC flexible electrode achieved individual and simultaneous detection for DA and UA in the concentration ranges of 1.0<img>220.0 µM and 1.0<img>500.0 µM, the detection limits (LOD) of DA and UA were 0.0129 and 0.044 μM, respectively (S/N=3). In addition, the sensor exhibited good repeatability, stability and selectivity, realizing the detection of DA and UA in human serum with recovery rate of 95.20 % <img> 105.3 %. Also, the density functional theory (DFT) calculations were used to explore the interaction between electrode material and detected substrate. A simple hydrothermal method was utilized to grow the ZnCo(OH)F/CDs composite onto the CC substrate. The presence of F⁻ in ZnCo(OH)F can increase the charge mobility and improve the conductivity. ZnCo(OH)F/CDs/CC as flexible electrode material can determine DA and UA simultaneously in human serum with a satisfactory recovery rate. This flexible sensor has a broad application prospect in the manufacture of wearable devices.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"705 ","pages":"Article 135695"},"PeriodicalIF":4.9,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142653462","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Surfactant molecules and nano gold on HOPG: Experiment and theory","authors":"Imtiaz Ahmad","doi":"10.1016/j.colsurfa.2024.135664","DOIUrl":"10.1016/j.colsurfa.2024.135664","url":null,"abstract":"<div><div>Excessive surfactant molecules within the solution adhere to highly ordered pyrolytic graphite (HOPG) when a droplet containing gold nanorods evaporates, leading to the emergence of a unique coffee-ring pattern. The combination of surface hydrophobicity and evaporation of the aqueous phase results in a stick-slip motion, which enhances the convective hydrodynamics of suspended particles. This phenomenon initiates interactions that influence the deposition and flow dynamics inside the droplet. High-resolution scanning electron microscopy (HRSEM) does not provide significant insights into regions potentially linked to cetyltrimethylammonium bromide (CTAB) molecules, whereas the atomic force microscope (AFM) displays the presence of gold nanoparticles arranged by CTAB within specific CTAB patches. The layers forms with varying heights and gaps between them, indicating diverse adhesion of CTAB. The analytical focus lies on the quantitative assessment of CTAB molecules, stripe dimensions, and energy profiles influenced by concentration and the effective positioning of CTAB-coated gold nanorods in CTAB-covered regions. AFM examination reveals CTAB molecular stripes on HOPG, showing a binding energy of −20 kJ/mol with the surface, −10 kJ/mol for nitrogen bonding with HOPG, and a total binding energy (BE) of −60 kJ/mol, considering various contributing factors. Completely parallel aligned molecules (CPAM) exhibit higher binding energy than non-perfectly aligned molecules (NPAM) due to maximum Van der Waals (VdW) interactions, ideal electrostatic interactions, and minimal steric repulsion. The difference in binding energy between perfectly and non-perfectly aligned molecules is around 20kJ/mol, emphasizing the importance of molecular orientation. As temperature rises from 298 K to 348 K, the likelihood of NPAM desorption increases significantly, with the binding energy shifting from 2.5kJ/mol to 4.1kJ/mol. Temperature significantly influences the equilibrium of molecules on HOPG surfaces. The emphasis is on elucidating the alterations in energy levels during nanorod aggregation on CTAB areas compared to bare HOPG surfaces, underscoring the impact of nanorods on CTAB micelle deformation energy. Observations on the variation in CTAB desorption rates with temperature changes underscore the dynamic nature of molecular binding energy associated with surface properties, underscoring the importance of molecular configuration and energy transfers in nanoscale systems.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"705 ","pages":"Article 135664"},"PeriodicalIF":4.9,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142653963","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Aqueous-phase synthesis of cationic hydrogel nanoparticles with antibacterial properties","authors":"Noriko Yamauchi ,&nbsp;Yuka Sue ,&nbsp;Tomoya Nagai ,&nbsp;Shuntaro Hakozaki ,&nbsp;Takeru Saito ,&nbsp;Yoichiro Sogame ,&nbsp;Yoshio Kobayashi","doi":"10.1016/j.colsurfa.2024.135737","DOIUrl":"10.1016/j.colsurfa.2024.135737","url":null,"abstract":"<div><div>Antibacterial hydrogel nanoparticles are expected to be used in many biomedical applications, such as drug delivery and the development of antibacterial materials. In this study, we developed a synthesis for hydrogel nanoparticles that are dispersible in liquid media and have antibacterial properties. The particles were synthesized by copolymerizing a hydrophilic monomer (2-hydroxyethyl methacrylate), a cationic monomer containing a quaternary ammonium cation (trimethylaminoethyl methacrylate chloride), and a crosslinker (ethylene glycol dimethacrylate) in an aqueous solution with a cationic polymerization initiator (2,2′-azobis[2-(2-imidazolin-2-yl)propane] dihydrochloride) to form a hydrogel. A hydrophobic monomer (methyl methacrylate) was then added and the polymerization was continued. The number average particle diameter by scanning electron microscopy was 122 nm, and the hydrodynamic diameter by dynamic light scattering measurement in water was about 380 nm, suggesting swelling of the particles by water. Furthermore, water was able to penetrate the solidified dry powder, confirming the hydrophilic properties of the particles. The zeta potential of the particles was about +40 mV, and bovine serum albumin, which generally has a high adsorption to positively charged substances, was adsorbed in large amounts to the particle surface, indicating that the particles had sufficient cationicity. The particles maintained stable dispersions even in liquid media with high ionic strength and containing impurities, which is important for nanoparticles used in medical and hygiene applications. The antibacterial activity of the particles was evaluated by incubation with <em>Klebsiella pneumoniae</em>, a Gram-negative bacterium. Almost no <em>K. pneumoniae</em> remained present in the supernatant after incubation, demonstrating the antibacterial properties of the particles.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"705 ","pages":"Article 135737"},"PeriodicalIF":4.9,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142653471","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"pH-controlled-ion-mobility of Laponite-phosphate dispersion for physical hydrogel with improved mechanical properties and sensitivity to CO2","authors":"Martina Nevoralová ,&nbsp;Sonia Bujok ,&nbsp;Rafał Konefał ,&nbsp;Ewa Mierzwa ,&nbsp;Magdalena Konefał ,&nbsp;Hynek Beneš ,&nbsp;Szczepan Bednarz","doi":"10.1016/j.colsurfa.2024.135743","DOIUrl":"10.1016/j.colsurfa.2024.135743","url":null,"abstract":"<div><div>Self-assembled physical nanocomposite hydrogels based on bio-based poly(itaconic acid) and Laponite® nanoclays were prepared and tested as possible CO₂ sensors in smart food packaging. The structure and mechanical properties of the fabricated hydrogels were controlled by changing the initial pH of the aqueous Laponite® dispersions stabilised by tetrasodium pyrophosphate. The dispersions were studied by SAXS and analysed using circular disc and fractal model to determine clay agglomeration tendency. Sodium and pyrophosphate ions mobility was investigated by ²³Na and ³¹P 1D as well as spin-spin relaxation times T₂ NMR measurements. The rheological behaviour of the produced hydrogels was studied by oscillatory shear measurements. It was found that decreasing the pH of the Laponite® nanodispersions up to 8 increases the strength of the physical interactions between the nanoclays, dispersant, and polyelectrolyte chains, which enables production of dimensionally stable and mechanically robust hydrogels. Their potential application as the CO₂-sensitive matrix for construction of environmentally friendly colorimetric sensors was demonstrated showing the CO₂ sorption capacity of 0.07 mmol CO₂/g. A prototype device of hydrogel sensor was built and tested in a food packaging application to monitor the plum fruit respiration processes.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"705 ","pages":"Article 135743"},"PeriodicalIF":4.9,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142653352","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Antibacterial double-layer calcium phosphate/chitosan composite coating on metal implants for tissue engineering","authors":"Anna I. Kozelskaya ,&nbsp;Andreas Früh ,&nbsp;Sven Rutkowski ,&nbsp;Semen I. Goreninskii ,&nbsp;Ksenia N. Verzunova ,&nbsp;Elena A. Soldatova ,&nbsp;Elena V. Dorozhko ,&nbsp;Johannes Frueh ,&nbsp;Olga V. Bakina ,&nbsp;Michael A. Buldakov ,&nbsp;Evgeny L. Choinzonov ,&nbsp;Leonid K. Brizhan ,&nbsp;Artur A. Kerimov ,&nbsp;Igor V. Khominets ,&nbsp;Denis V. Davydov ,&nbsp;Sergei I. Tverdokhlebov","doi":"10.1016/j.colsurfa.2024.135652","DOIUrl":"10.1016/j.colsurfa.2024.135652","url":null,"abstract":"<div><div>In this study, four different promising two-layer composite coatings on titanium substrates with antibacterial properties were investigated. Two different types of antibacterial agents were used to impart antibacterial properties to the coatings: antibiotic amikacin (in three different concentrations) and zinc. Chitosan, which also has antibacterial properties, was used as a carrier layer for amikacin on a calcium phosphate coating incorporating zinc. This combination should enable long-term antibacterial properties of a bone implant and thus prevent potential complications during wound healing due to bacterial contamination. To examine the physico-chemical properties of the samples, the elemental, chemical and phase compositions, the thickness and the wettability of the coatings were investigated. The release of amikacin from the chitosan coatings was investigated using high-performance liquid chromatography. Antibacterial activity of the prepared coatings was evaluated against five hospital bacteria strains (<em>Staphylococcus aureus</em>, <em>Pseudomonas aeruginosa</em>, <em>Acinetobacter baumannii</em>, <em>Enterococcus faecalis</em>, <em>Klebsiella pneumoniae</em>) and one strain from the microbial strain collection (<em>methicillin-resistant Staphylococcus aureus</em>, ATCC 43300). To investigate the cell toxicity of the composite coating, cell adhesion, proliferation and osteogenic differentiation were tested with mesenchymal stem cells. According to the results, the composite coatings with an amikacin concentration of 5.0 and 7.5 percent by weight have the best biological and antibacterial properties.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"705 ","pages":"Article 135652"},"PeriodicalIF":4.9,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142653355","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Construction of Au nanoparticles decorated on ZnFe2O4@ZnIn2S4 core-shell structure to enhance photocatalytic hydrogen production","authors":"Jiahui Song ,&nbsp;Wen Ge ,&nbsp;Sidi Deng ,&nbsp;Jiawen Tang ,&nbsp;Shukang Deng ,&nbsp;Peizhi Yang","doi":"10.1016/j.colsurfa.2024.135705","DOIUrl":"10.1016/j.colsurfa.2024.135705","url":null,"abstract":"<div><div>Developing effective photocatalysts for water splitting is essential to generating H₂ energy sources. Herein, a novel ZnFe₂O₄@ZnIn₂S₄/Au ternary composite (abbreviated as ZFO@ZIS/Au) was successfully designed and fabricated by loading Au nanoparticles on the ZFO@ZIS surfaces for effective photocatalytic H₂ generation for the first time. Attributed to the synergistic effect of the traditional II-type heterojunction charge transfer and Au nanoparticles as co-catalysts, the ZFO@ZIS/Au heterojunction generated greater amounts of hydrogen under visible light irradiation. The ZFO-7 %@ZIS/Au-2 catalyst displayed the highest H₂ production rate of 1145.38 μmol∙g⁻¹∙h⁻¹, which was almost 3.87 times more than the ZIS value. Furthermore, several characterization techniques were performed to investigate the catalysts and evaluate the catalyst's photocatalytic activity when exposed to visible light. Lastly, a detailed discussion of the corresponding photocatalytic H₂ production process of the as-prepared ZFO@ZIS/Au heterojunction was provided. The distinctive research might offer a potential approach for modifying zinc ferrate for photocatalytic hydrogen production.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"705 ","pages":"Article 135705"},"PeriodicalIF":4.9,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142653742","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Bio-inspired synthesis of Ag-g-C3N4 nanocomposites and their application for photocatalytic degradation of para-nitrophenol","authors":"Shoaib Mukhtar ,&nbsp;Erzsébet Szabó-Bárdos ,&nbsp;Ottó Horváth ,&nbsp;Éva Makó ,&nbsp;Tatjána Juzsakova ,&nbsp;Zsombor Molnár","doi":"10.1016/j.colsurfa.2024.135739","DOIUrl":"10.1016/j.colsurfa.2024.135739","url":null,"abstract":"<div><div>Nanocomposites are promising in advanced materials for environmental applications due to their ability to boost functionality through synergistic effects. Graphitic carbon nitride (<em>g</em>-C₃N₄) is renowned for its exceptional characteristics in photocatalysis. This work examines the preparation of <em>g</em>-C₃N₄ from different precursors, and how the presence of silver nanoparticles (Ag NPs) and silver ions (Ag⁺) in <em>g</em>-C₃N₄ matrices improve their combined effect on photocatalytic activity, specifically in the degradation of para-nitrophenol (PNP), a persistent organic pollutant. From urea and melamine precursors for the preparation of <em>g</em>-C₃N₄, the latter provided a much higher yield. Using an easy synthesis approach, Ag NPs were evenly distributed in the <em>g</em>-C₃N₄ framework, whereas Ag⁺ ions were incorporated by an apparent physical procedure. A bio-inspired, environmentally friendly method was also applied to prepare Ag NPs. The nanocomposites showed improved light absorption and separation of charge carriers due to the synergistic interaction between <em>g</em>-C₃N₄ and Ag species. Using UV and Vis LED light sources, we investigated both pure <em>g</em>-C₃N₄ and Ag<em>-g</em>-C₃N₄ catalysts. For breaking down para-nitrophenol, the silver-modified catalysts performed significantly better than pure <em>g</em>-C₃N₄ in both UV and Vis. The study clarified the functions of Ag NPs and Ag⁺ ions in enhancing photocatalytic activity by examining their involvement in generating reactive oxygen species and degrading pollutants. This work highlights the capability of <em>g</em>-C₃N₄-based nanocomposites as effective photocatalysts for environmental remediation. It also explores the benefits of adding silver species to improve performance in degrading pollutants.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"705 ","pages":"Article 135739"},"PeriodicalIF":4.9,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142653466","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhanced microwave absorption in organogels: The synergy of polar molecules and magnetic particles","authors":"Wanting Xu ,&nbsp;Jie Li ,&nbsp;You Wu ,&nbsp;Zhongchen Lu ,&nbsp;Tao Wang ,&nbsp;Wenbo Ju ,&nbsp;Bin Yuan","doi":"10.1016/j.colsurfa.2024.135712","DOIUrl":"10.1016/j.colsurfa.2024.135712","url":null,"abstract":"<div><div>Herein, wideband microwave absorbing materials with high flexibility are developed by creating a novel layered organogel composite consisting of carbonyl iron particles (CIP) and polyacrylamide (PAM), employing ethylene glycol (EG) as the solvent. The microwave absorbing properties of layered absorbers with different CIP contents are investigated over the 1–18 GHz range. An integrated stratified architecture was obtained using polar EG molecules and magnetic CIP particles, which were the main contributors to magnetic and dielectric losses in the PAM matrix. The results indicated that the minimum reflection loss reaches a value of −48.0 dB at a thickness of 2 mm and a frequency of 15.5 GHz; meanwhile, an effective absorption bandwidth of 3.2 GHz in the C-band can also be obtained. An analysis of the absorption mechanism shows that the combination of an impedance-matching layer composed of CIP magnetic particles and an absorption layer composed of EG polar molecules in the PAM matrix provides strong broadband absorption in the C-band. Overall, the CIP/EG@PAM organogel composites have simple preparation, high flexibility, and it has adhesion. This study provides a new strategy for designing wideband microwave absorbing materials.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"705 ","pages":"Article 135712"},"PeriodicalIF":4.9,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142653469","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Efficient biochar regeneration for a circular economy: Removing emerging contaminants for sustainable water treatment","authors":"Oussama Baaloudj ,&nbsp;Serge Chiron ,&nbsp;Angelica Rebecca Zizzamia ,&nbsp;Vincenzo Trotta ,&nbsp;Daniele Del Buono ,&nbsp;Debora Puglia ,&nbsp;Marco Rallini ,&nbsp;Monica Brienza","doi":"10.1016/j.colsurfa.2024.135730","DOIUrl":"10.1016/j.colsurfa.2024.135730","url":null,"abstract":"<div><div>Biochar is widely known as a highly effective adsorbent for water treatment, capable of removing a wide range of pollutants. However, its saturation point limits its long-term use, but regeneration can extend its applicability. This study aims to develop a sustainable method for removing pollutants from water that aligns with the concept of the circular economy. Biochar derived from forest residue was used to remove emerging pollutants such as fipronil (FIP), venlafaxine (VEN), sulfamethoxazole (SMX) and trimethoprim (TRM). A comparative analysis of the adsorption of the studied pollutants onto biochar was performed by analyzing the kinetics, where it was found that SMX exhibited the lowest adsorption efficiency, prompting further optimization experiments. Under optimal conditions, adsorption isotherms were used to investigate the pollutant removal mechanisms. The results showed that biochar exhibited high adsorption capacities for FIP, VEN, SMX and TRM, which were 3.77, 2.09, 2.71 and 3.88 mg/g, respectively. Regeneration treatments were applied to remove adsorbed contaminants after biochar saturation. Among them, heat-activated persulfate showed the most effective regeneration, maintaining biochar's adsorption capacity after five cycles with no significant loss. Eventual morphological, structural and chemical alterations post-regeneration were assessed using different characterization techniques. The findings of this research highlight the potential of biochar for sustainable water treatment, supporting the circular economy by extending its life cycle through effective regeneration.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"705 ","pages":"Article 135730"},"PeriodicalIF":4.9,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142653314","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessment of three quinolin-8-ol-imidazole hybrids as corrosion carbon steel inhibitors in acidic conditions employing practical and theoretical methodologies","authors":"Z. Amrani ,&nbsp;M. El Faydy ,&nbsp;Z. Safi ,&nbsp;N. Wazzan ,&nbsp;A. Boutakiout ,&nbsp;F. Benhiba ,&nbsp;I. Warad ,&nbsp;M. Rbaa ,&nbsp;B. Lakhrissi ,&nbsp;H. Oudda ,&nbsp;Anees A. Khadom ,&nbsp;A. Zarrouk","doi":"10.1016/j.colsurfa.2024.135690","DOIUrl":"10.1016/j.colsurfa.2024.135690","url":null,"abstract":"<div><div>Three hybrids of quinolin-8-ol-imidazole were scrutinized as corrosion inhibitors in 1 M HCl for carbon steel (Cstl). These hybrids are 5-((2-(4-(dimethylamino)phenyl)-4,5-diphenyl-1H-imidazol-1-yl)methyl)quinoline-8-ol (Quin-Amino), 5-((4,5-diphenyl-2-(p-tolyl)-1H-imidazol-1-yl)methyl)quinoline-8-ol (Quin-Tolyl), and 5-((2-(4-bromophenyl)-4,5-diphenyl-1H-imidazol-1-yl)methyl)quinoline-8-ol (Quin-Br). The current research includes a mixture of methods. In addition to computational approaches, several experimental approaches were employed, such as electrochemical impedance spectroscopy (EIS), scanning electron microscopy (SEM-EDX), UV–vis spectroscopy, and potentiodynamic polarization (PDP). The investigated hybrids' corrosion resistance was encountered to be concerned by the concentration, temperature, and chemical structure, which attained a maximum of 96.1 % for Quin-Amino, 93.4 % for Quin-Tolyl, and 92.5 % for Quin-Br at 10⁻³ M, respectively. The PDP results illustrated that the studied hybrids performed as mixed-type inhibitors. In addition, the chemisorption of these hybrids on the Cstl surface obeyed the Langmuir adsorption isotherm. SEM-EDX confirmed that the effectiveness of the three hybrids lies in their capability to develop an organic layer on the Cstl surface. The density functional theory (DFT) was employed for theoretical calculations. Molecular dynamics (MD) simulations manifest that hybrids are oriented beneficially on the Fe (110) surface, providing a high surface coverage and thus a high inhibition performance.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"705 ","pages":"Article 135690"},"PeriodicalIF":4.9,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142653128","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}