Materials Chemistry and Physics最新文献

{"title":"Plasma resistance and etching behavior of APS Y2O3 coatings modified via NH4F immersion process","authors":"Jiwon Choi ,&nbsp;Daegeun Kim ,&nbsp;Hyewon Seok ,&nbsp;Kangduk Kim","doi":"10.1016/j.matchemphys.2026.132200","DOIUrl":"10.1016/j.matchemphys.2026.132200","url":null,"abstract":"<div><div>In this study, a Y₂O₃ coating layer deposited using the atmospheric plasma spray (APS) method was modified into a Y_xO_yF_z layer by controlling various variables with an NH₄F salt solution, and the plasma resistance was evaluated to confirm the possibility of its application as a seasoning process for semiconductor etching. As a result of NH₄F salt immersion, a new crystalline layer was formed on the Y₂O₃ coating layer when the salt concentration exceeded 30 wt%. In addition, the formation of a Y_xO_yF_z layer by increasing the immersion and heat-treatment temperatures through the reaction between NH₄F and Y₂O₃ was confirmed via scanning electron microscopy (SEM), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy analyses. Plasma resistance evaluation using CF₄/Ar/O₂ plasma revealed that the etching depth was generally reduced in the specimens in which the Y_xO_yF_z layer was formed via immersion compared with the original APS Y₂O₃ coating layer. SEM, surface roughness, and XRD analyses of the coating after plasma etching confirmed that the plasma resistance improved in the surface-modified specimens, which was attributed to the reduced surface roughness and formation of the yttrium oxyfluoride (YOF) layer. In addition, a gradual decrease in the rate of increase in etching depth was observed with increasing plasma exposure time, along with increased YOF phase formation at a salt concentration of 40 wt%.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"354 ","pages":"Article 132200"},"PeriodicalIF":4.7,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146192213","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":"Synergistic photo-Fenton degradation of tetracycline hydrochloride over highly efficient amorphous CuSn(OH)6 nanorods","authors":"Enlei Zhang,&nbsp;Zhiyi Xu,&nbsp;Jiaojiao Chen,&nbsp;Xiaowen Song,&nbsp;Bengui Zhang,&nbsp;Yingpeng Xie,&nbsp;Guosheng Wang","doi":"10.1016/j.matchemphys.2026.132210","DOIUrl":"10.1016/j.matchemphys.2026.132210","url":null,"abstract":"<div><div>Amorphous CuSn(OH)₆ nanorods were synthesized by a facile co-precipitation method, and applied as an efficient photo-Fenton catalyst for the degradation of tetracycline hydrochloride (TCH). The morphology, structural features, and optical properties of the as-synthesized catalysts were systematically characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), and UV–vis diffuse reflectance spectroscopy (UV–vis DRS). Compared with crystal materials, amorphous CuSn(OH)₆ nanorods have the large specific surface area and narrow band gap. Under visible light irradiation, the amorphous CuSn(OH)₆ nanorods achieved 95.5% TCH degradation within 60 min, representing a two-fold improvement over CuSn(OH)₆ nanocrystallines. Key operational parameters, including catalyst dosage, H₂O₂ concentration, initial TCH concentration, solution pH, and reaction temperature, were systematically investigated to evaluate their effects on the degradation efficiency. Furthermore, a plausible catalytic mechanism for the amorphous CuSn(OH)₆ nanorods in the photo-Fenton process was proposed. This study offers new insights into the design of amorphous photocatalysts for advanced oxidation processes in antibiotic-containing wastewater treatment.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"354 ","pages":"Article 132210"},"PeriodicalIF":4.7,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146192145","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":"From white pollutants to wastewater purifiers: Performance study and mechanism analysis of formylated polystyrene adsorption materials for the removal of malachite green and sulfides from water bodies","authors":"Xinying Huang ,&nbsp;Zhengfeng Xie ,&nbsp;Songsong Xue ,&nbsp;Tao Liu ,&nbsp;Tianyi Zhang ,&nbsp;Yujie Hu ,&nbsp;Rui Zhang ,&nbsp;Xuanchi Tian ,&nbsp;Chaocheng Ma ,&nbsp;Chuxiang Zhou ,&nbsp;Gang Wu ,&nbsp;Wei Shi","doi":"10.1016/j.matchemphys.2026.132166","DOIUrl":"10.1016/j.matchemphys.2026.132166","url":null,"abstract":"<div><div>Expanded polystyrene (EPS) poses significant environmental challenges, necessitating efficient, low-energy recycling solutions. In this study, formylated EPS was used as the modified substrate, and a high-performance adsorption material (HPS-EC) was constructed through Knoevenagel condensation. The modification process adopts the conventional solvent heating method, which is simple and easy to implement with low energy consumption. At 298.15 K, the adsorption capacities of HPS-EC for MG and sulfides are 1846.79 mg/g and 136.94 mg/g, respectively. The adsorption processes of the two pollutants both conform to the Langmuir adsorption model and the quasi-second-order dynamic model, presenting as spontaneous and endothermic monolayer chemical adsorption. HPS-EC has a polystyrene skeleton chain, and the C<img>C in the synthetic part is also connected to two strong electron-withdrawing groups, –CN and –COOR. –COOR and aromatic hydrocarbons provide conditions for the electrostatic adsorption and π-π conjugated adsorption of MG. The β-carbon atoms connected with strong electron-withdrawing groups exhibit a strong electrophilicity, providing sites for the Michael addition of sulfides (HS⁻, S²⁻). In the subsequent experiments, HPS-EC also demonstrated excellent salt resistance, recycling and regeneration performance, as well as practical application potential. In conclusion, HPS-EC demonstrates outstanding adsorption performance, not only showing broad application prospects in the treatment of polluted wastewater, but also providing more solutions for the sustainable application of waste EPS.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"354 ","pages":"Article 132166"},"PeriodicalIF":4.7,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146190709","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":"Green synthesis and characterization of platinum nanoparticles loaded with paclitaxel and coated with chitosan: a promising approach for breast cancer treatment","authors":"Mouhaned Y. Al-darwesh ,&nbsp;Maroua Manai ,&nbsp;Nesrine Boughzala ,&nbsp;Hammouda Chebbi","doi":"10.1016/j.matchemphys.2026.132192","DOIUrl":"10.1016/j.matchemphys.2026.132192","url":null,"abstract":"<div><div>Paclitaxel resistance remains a major therapeutic challenge in breast cancer, and is particularly pronounced in inflammatory breast cancer (IBC), where intrinsic aggressiveness contributes to limited response and rapid disease progression. In this study, we designed an eco-friendly synthesis method to develop a novel nanosystem based on platinum nanoparticles (Pt NPs) loaded with paclitaxel (PTX) as an efficient drug delivery platform for the treatment of breast cancer. The Pt NPs were synthesized using a green method employing <em>Foeniculum vulgare</em> (<em>F. vulgare</em>) seed extract. These nanoparticles were then loaded with PTX and coated with chitosan (Ch) to enhance drug delivery efficiency. The physicochemical properties of the nanoparticles were characterized using X-ray Diffraction (XRD), Transmission Electron Microscopy (TEM), Thermogravimetric Analysis (TGA), Field Emission Scanning Electron Microscopy (FESEM), Fourier Transform Infrared Spectroscopy (FTIR), Ultraviolet-Visible (UV-Vis) absorption spectroscopy, and zeta potential measurements. X-ray Diffraction (XRD) analysis confirmed the high purity and distinct crystalline nature of the resulting nanoparticles (Pt NPs and Pt-PTX-Ch). FESEM analyses revealed that the nanoparticles had a spherical morphology with a tendency to aggregate, with an average size ranging between 17 and 20 nm. Spectroscopic analysis showed absorption peaks at 270 nm for Pt NPs and 279 nm for Pt-PTX-Ch. Surface measurements recorded zeta potential values of −24 mV for Pt NPs and +36 mV for Pt-PTX-Ch. The nanoparticles demonstrated good biocompatibility with red blood cells (RBCs) in hemolytic activity assays, exhibiting no hemolytic effects at concentrations ranging from 7.5 to 120 μg/mL. Drug release studies indicated a sustained and pH-responsive release pattern. Apoptosis assays aligned with MTT results, confirming the effectiveness of the nanoparticles in precisely targeting cancer cells. Our <em>in vitro</em> study showed that the PT and PT + Ch treatments reduced proliferation, colony formation and migration in breast cancer with a better response in inflammatory breast cancer (IBC) (SUM149 and KPL4) <em>vs.</em> non-IBC (nIBC) cells (MDA-MB-231). This study highlights that Pt-PTX-Ch nanoparticles represent a promising system for the delivery of PTX, enhancing its efficacy against breast cancer models with higher response in IBC cells.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"354 ","pages":"Article 132192"},"PeriodicalIF":4.7,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146191626","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":"Fabrication of heterojunction-based S-scheme NiS/Bi2MoO6 photocatalyst with an outstanding photocatalytic degradation of Atrazine","authors":"Mohamed Mokhtar M. Mostafa ,&nbsp;L. A. Al-Hajji ,&nbsp;Almuhrah A.N. Alroba ,&nbsp;Adel A. Ismail","doi":"10.1016/j.matchemphys.2026.132196","DOIUrl":"10.1016/j.matchemphys.2026.132196","url":null,"abstract":"<div><div>One of the best techniques for enhancing photocatalytic performance is heterojunction engineering, which enables rapid charge-carrier kinetics and low charge-transfer resistance. Here, a straightforward synthesis process was employed to integrate NiS nanoparticles onto mesoporous Bi₂MoO₆, forming heterostructure S-scheme NiS/Bi₂MoO₆ photocatalyst. Atrazine degradation under visible light was used to determine the photocatalytic activity of the Bi₂MoO₆ NPs and NiS/Bi₂MoO₆ photocatalysts. The formation of a well-structured NiS/Bi₂MoO₆ nanocomposite with intimate contact and nanoscale mixing of NiS and Bi₂MoO₆ is confirmed by TEM. The results showed that the heterojunction NiS/Bi₂MoO₆ photocatalyst demonstrated excellent photocatalytic activity compared to pristine Bi₂MoO₆. The optimized NiS/Bi₂MoO₆ achieved complete Atrazine degradation (100%) after 40 min of illumination. The rate constant for the 9% NiS/Bi₂MoO₆ nanocomposite (0.0623 min⁻¹) was twice as high as that of pristine Bi₂MoO₆ nanoparticles (0.0306 min⁻¹). The superior Atrazine removal efficiency of NiS/Bi₂MoO₆ nanocomposite can be attributed to their synergistic effect with the suitable band potentials of NiS and Bi₂MoO₆, small crystallite size, narrow bandgap, high adsorption capacity, rapid transport, and easy penetration of Atrazine to active sites within the mesoporous structure, as well as reduced light scattering. Reusability tests showed that the regenerated NiS/Bi₂MoO₆ photocatalyst maintained strong stability and reusability after five consecutive cycles. The 9% NiS/Bi₂MoO₆ photocatalyst also exhibited the lowest PL response, highest photocurrent intensity, and smallest EIS curve radius, aligning with its superior photocatalytic activity. The resulting NiS/Bi₂MoO₆ serves as a potent oxidizing agent for mineralizing Atrazine and immensely enhances the separation rate of photocharges by generating an electric field at the n-n heterojunction. This work outlines a practical method for producing highly efficient heterojunction photocatalysts.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"354 ","pages":"Article 132196"},"PeriodicalIF":4.7,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146191692","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":"Design of process for stabilization of ultrafine iron oxide nanostructures and their application as efficient catalyst for chlorine evolution reaction and water remediation","authors":"Sushma Kumari,&nbsp;Sapna Devi,&nbsp;Kritika Sood,&nbsp;Menaka Jha","doi":"10.1016/j.matchemphys.2026.132094","DOIUrl":"10.1016/j.matchemphys.2026.132094","url":null,"abstract":"<div><div>The chlorine evolution reaction (CER) is a vital anodic process in the chlor-alkali industry, where the development of efficient, stable, and low-cost catalysts remains a key challenge. Traditionally, precious mixed metal oxides (MMOs) have been employed as benchmark catalysts, but their high-cost limits large-scale sustainable application. In this work, we report Fe₃O₄ nanoparticles, composed entirely of non-precious elements, as an active and stable electrocatalyst for CER. The nanoparticles were synthesized via a hydrothermal route. The electrode displayed a low overpotential of 140 mV at 10 mA cm⁻² and a Tafel slope of 118 mV dec⁻¹, indicating efficient reaction kinetics. Electrochemical studies further revealed excellent structural robustness and long-term stability during continuous operation. Beyond catalytic performance, the <em>in situ</em> generated chlorine was successfully utilized for environmental remediation, achieving 98 % degradation of Rhodamine B within 5 min under acidic NaCl electrolyte.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"354 ","pages":"Article 132094"},"PeriodicalIF":4.7,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146191916","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":"Enhanced electrochemical properties of Mn and Cu co-doped nickel cobaltite/rGO nanocomposites for superior supercapacitor electrode materials","authors":"Faria Usman ,&nbsp;Samra Zeb ,&nbsp;Mahwish Afzia ,&nbsp;Xianmin Zhang ,&nbsp;Rafaqat Ali Khan","doi":"10.1016/j.matchemphys.2026.132184","DOIUrl":"10.1016/j.matchemphys.2026.132184","url":null,"abstract":"<div><div>In this study, pristine NiCo₂O₄ and its Mn/Cu co-doped derivatives i.e., Ni_1-xMn_xCo_2-yCu_yO₄ nanoparticles, were synthesized by co-precipitation method, followed by their composite formation with rGO. The materials were characterized by XRD, FTIR, XPS and SEM to confirm the structure, morphology, surface chemical features and composition. XPS analysis confirmed the oxygen vacancies and electrically active metal sites, which enhanced electrode–electrolyte interactions as well as surface redox activity. Electrochemical studies indicated that composites with a nominal composition of Ni_0.5Mn_0.5Co_1.0Cu_1.0O₄/rGO, achieved maximum specific capacitance, measuring 1738 F g^-1 at a scan rate of 5 mVs⁻¹ with improved energy density of 196 Wh/Kg. GCD studies confirmed improved rate capability and remarkable cyclic stability, with its rGO composite retaining 95% of its specific capacitance after 5000 cycles at 5 A g^-1. The maximum specific capacitance we observed in this case was 558 F g^-1 at 1 A g^-1, having the capability of maintaining the property over various cycles. Additionally, the EIS behavior confirmed that Mn–Cu co-doped composite material with rGO has less series resistance (<em>R</em>_s). Nyquist plots supported the EIS analysis, confirming that all synthesized materials showed best capacitive behavior. Moreover, Mn–Cu co-doped composite had the lowest equivalent series resistance of 180 mΩ in comparison to that of pristine NiCo₂O₄. Through Randles circuits, we carefully interpreted how different interfaces are formed at electrode surface to undergo redox reaction beneficial for electrochemical activities.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"354 ","pages":"Article 132184"},"PeriodicalIF":4.7,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146190784","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":"Tuning quercetin delivery through in-situ and ex-situ loading of UiO-66-NH2 for pH-responsive liver cancer therapy","authors":"Layla Afianti Maksum ,&nbsp;Witri Wahyu Lestari ,&nbsp;Murni Handayani ,&nbsp;Ozi Adi Saputra ,&nbsp;Caecilia Sukowati ,&nbsp;Claudio Tiribelli ,&nbsp;Lory Saveria Crocè ,&nbsp;Fajar Rakhman Wibowo ,&nbsp;Maulidan Firdaus ,&nbsp;Tonang Dwi Ardyanto","doi":"10.1016/j.matchemphys.2026.132099","DOIUrl":"10.1016/j.matchemphys.2026.132099","url":null,"abstract":"<div><div>This study investigates the incorporation of quercetin, a natural anticancer agent, into UiO-66-NH₂ metal-organic frameworks (MOFs) using two strategies: in-situ encapsulation during MOF synthesis and ex-situ loading into preformed frameworks. Both methods successfully produced quercetin-loaded MOFs with distinct structural and functional features. In-situ loading caused significant structural changes, reducing surface area and porosity, whereas ex-situ loading preserved the original framework. Drug loading capacities were 41.1 % for in-situ and 67.13 % for ex-situ formulations. Both systems displayed pH-responsive release, but with different mechanisms: the in-situ formulation followed a super Case II transport, showing rapid quercetin release under acidic conditions (up to 90.98 % at pH 1.2), while the ex-situ formulation exhibited anomalous (non-Fickian) diffusion, providing gradual and sustained release, especially at physiological pH. Biological evaluation in liver cancer cell lines (Huh7 and JHH6) showed that the ex-situ formulation retained higher anticancer activity compared to the in-situ formulation. These findings highlight that the method of drug incorporation strongly influences MOF structure, release behavior, and therapeutic performance, offering valuable guidance for designing responsive nanocarriers for targeted cancer therapy.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"354 ","pages":"Article 132099"},"PeriodicalIF":4.7,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146191527","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":"Reinforcement of the Fe(110)/TiN(100) interface by elemental doping: machine learning accelerated first principles calculations","authors":"Yuan Tao ,&nbsp;Chenhuan Cai ,&nbsp;Ao Chen ,&nbsp;Tao Xia ,&nbsp;Hanzhang Yu ,&nbsp;Yong Liu ,&nbsp;Lina Zhou ,&nbsp;Jingchuan Zhu","doi":"10.1016/j.matchemphys.2026.132066","DOIUrl":"10.1016/j.matchemphys.2026.132066","url":null,"abstract":"<div><div>Atomic-scale control of metal–ceramic interfaces is crucial for enhancing the service performance of these materials. Elemental doping effectively improves interfacial bonding, yet many elements in the periodic table remain largely unexplored. In this study, we present an efficient interface optimization method that combines first-principles calculations (DFT), machine learning (ML), and verification calculations (VC) to accelerate the screening and prediction of dopant performance. Using the Fe(110)/TiN(100) interface as a model system, we conducted first-principles calculations on 35 representative dopants to determine key interfacial parameters. After feature engineering, six ML models were trained and evaluated, and a stacking ensemble model was created from the four best-performing models to enhance generalization and stability. High-throughput predictions were carried out on doped systems throughout the entire periodic table, revealing candidate elements that improve interfacial bonding, mainly among transition metals in periods 4, 5, and 6. To confirm the model predictions, verification calculations were performed on three doped systems (V, Mo, W), assessing charge transfer and mechanical response, which closely aligned with the predictions. These findings demonstrate that the DFT–ML–VC framework effectively accelerates dopant screening and interface design, significantly reducing computational costs and opening new avenues for the intelligent development of metal/ceramic heterostructures.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"354 ","pages":"Article 132066"},"PeriodicalIF":4.7,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146191528","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":"Ultra-selective and highly efficient adsorption of anionic/cationic dye by AgBiS2 and mechanistic analysis","authors":"Nihad Ibrahim Mohammed Abdallah ,&nbsp;Xuqiang Zhang ,&nbsp;Qiong Lu ,&nbsp;Tengwei Huang ,&nbsp;Fengxia Yang ,&nbsp;Xiaofei Dong ,&nbsp;Yun Zhao ,&nbsp;Jiangtao Chen ,&nbsp;Yan Li","doi":"10.1016/j.matchemphys.2026.132174","DOIUrl":"10.1016/j.matchemphys.2026.132174","url":null,"abstract":"<div><div>To tackle the pressing demand for effective remediation of organic dye-contaminates, selective adsorption has emerged as a research focus, celebrated for its cost-efficiency and high specificity. In this study, ternary metal sulfide AgBiS₂, synthesized via a facile hydrothermal approach, is employed as novel adsorbents, with the innovative aim of exploring their selective adsorption behavior to charge dyes and the underly mechanisms. AgBiS₂ demonstrates significantly higher adsorption capacity and faster kinetics for cationic Rhodamine B (RhB) compared to anionic methyl orange (MO). With 10 mg L⁻¹ of initial concentration, the removal efficiency of RhB reaches 99.9 % within 60 min, in contrast to 57.7 % for MO, and RhB adsorption achieves near-equilibrium rapidly. The material also displays distinct pH-dependent selectivity in RhB adsorption, including the highest adsorption capacity reaches to 101.5 mg g⁻¹ under alkaline conditions, while the minimum is 32.4 mg g⁻¹ in an acidic environment. Kinetic analyses reveal that RhB adsorption obeys a pseudo-second-order model, suggesting chemisorption as the dominant mechanism, and adsorption data fit the Langmuir isotherm best, with a capacity of 106.9 mg g⁻¹ at pH = 7.5. Systematically characterizations reveal that abundant S²⁻ sites on the surface of AgBiS₂ are identified as crucial for the high-selective adsorption of RhB, mainly via electrostatic interactions. This study provides valuable support for the design of high-performance ternary sulfide adsorbents for treating dye wastewater.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"354 ","pages":"Article 132174"},"PeriodicalIF":4.7,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146191531","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}