Applied Clay Science最新文献

{"title":"Pillared interlayered clays in adsorption and advanced oxidation processes: A sustainable approach for green chemistry","authors":"Baneesh Patial ,&nbsp;Navdeep ,&nbsp;Nitten Kumar ,&nbsp;Ajay Bansal ,&nbsp;Renu Gupta ,&nbsp;Susheel K. Mittal","doi":"10.1016/j.clay.2025.107869","DOIUrl":"10.1016/j.clay.2025.107869","url":null,"abstract":"<div><div>The Pillared Interlayered Clays (PILCs) are becoming increasingly popular for treating refractory wastewater effluents because of their many uses as adsorbents and catalysts, especially in advanced oxidation processes (AOPs). The review starts by outlining the fundamental idea of PILCs, its synthesis and enhancement in surface area and structural stability. This review emphasizes the use of PILCs and their role as active solid materials in adsorption and AOPs, such as photocatalysis, the Fenton process, catalytic wet peroxide oxidation (CWPO), and catalytic wet air oxidation (CWAO) of refractory organic compounds in contaminated aqueous streams. Aligned with green chemistry, PILCs offer a sustainable solution, with photocatalysis effective for low pollutant concentrations and CWPO, Fenton, and CWAO suited for higher concentrations. Utilizing UV and visible light, the PILCs-based AOPs effectively treats industrial wastewater by eliminating pollutants, reducing toxicity, and enhancing biodegradability. This study thoroughly summarizes the recent studies on PILCs and emphasizes their potential as valuable substances for catalytic removal processes and pollutant adsorption. Their adjustable porosity and acidity enable efficient, low-toxicity reactions. More research and development work is needed to realize the green potential of PILCs fully and enable their industrial and practical uses in a range of industries.</div></div>","PeriodicalId":245,"journal":{"name":"Applied Clay Science","volume":"275 ","pages":"Article 107869"},"PeriodicalIF":5.3,"publicationDate":"2025-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144125088","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Recent advances in layered double hydroixdes@MXene (LDHs@MXene) composites: Synthesis, properties, and catalytic applications","authors":"Sundas Riaz ,&nbsp;Sami Ullah ,&nbsp;Sanam Bashir ,&nbsp;Aziz ur Rehman ,&nbsp;Rashid Iqbal ,&nbsp;Tayyaba Najam ,&nbsp;Mostafa A. Ismail ,&nbsp;Md Rezaul Karim ,&nbsp;Syed Shoaib Ahmad Shah ,&nbsp;Muhammad Altaf Nazir","doi":"10.1016/j.clay.2025.107866","DOIUrl":"10.1016/j.clay.2025.107866","url":null,"abstract":"<div><div>The overuse of fossil fuels has led to severe energy shortages and environmental pollution, raising global concern. Photocatalysis has emerged as a promising technology for addressing global energy and environmental challenges. By harnessing solar energy to drive chemical reactions, photocatalytic processes enable clean energy production and the degradation of environmental pollutants. The development of new materials featuring layered structures, low cost, and large surface areas offers a promising strategy to address these challenges and promote sustainable development. Therefore, it is necessary to design active, dependable, and reasonably priced catalysts or photocatalysts in order to achieve the intended photocatalytic outcomes. 2D nanomaterials may generally be identified as efficient photocatalysts in various fields. Two of the best 2D nanomaterials are layered double hydroxides (LDHs) and MXene, complement each other in several ways because of their distinct properties. The lack of research on LDHs/MXene nanocomposites is filled by this comprehensive review, which focuses on techniques, structural morphologies, and their applications such as supercapacitors, water splitting and photocatalytic reduction of pollutants. Various factors influencing the composite's morphology in order to give more understanding of the morphology control mechanism were also discussed in details. Finally, the current challenges for using LDHs/MXene nanocomposites for photocatalysis and future prospects in this field were also explored.</div></div>","PeriodicalId":245,"journal":{"name":"Applied Clay Science","volume":"275 ","pages":"Article 107866"},"PeriodicalIF":5.3,"publicationDate":"2025-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144125087","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Tracking structural H- and O-isotope exchange in smectite during bentonite-water interactions over a thermal gradient in the Alternative Buffer Materials experiments","authors":"Nadine J. Kanik ,&nbsp;Fred J. Longstaffe ,&nbsp;Artur Kuligiewicz ,&nbsp;H. Albert Gilg ,&nbsp;Arkadiusz Derkowski","doi":"10.1016/j.clay.2025.107878","DOIUrl":"10.1016/j.clay.2025.107878","url":null,"abstract":"<div><div>In order to track structural stable hydrogen (H)- and oxygen (O)-isotope exchange between smectite and water over a thermal gradient, samples were studied from the Alternative Buffer Materials (ABM) 2 and 5 experiments conducted at the Äspö Hard Rock Laboratory in Sweden for five different bentonite materials. The ABM experiments were designed to investigate the stability of different bentonite materials of interest as buffers around canisters containing spent nuclear fuel in long-term underground repositories. The ABM2 and 5 experiments consisted of compacted bentonite discs stacked vertically around a central heating system in a host-rock borehole for several years, with this configuration intended to simulate heating that occurs during radionuclide decay. The ABM experiments provided a unique opportunity to track isotopic exchange between smectite and water in a long-term, imperfect, natural but still semi-controlled environment. Clear differences were observed for H-isotope compositions between the ABM2 and ABM5 packages. O-isotope compositions showed similar trends between the two ABM packages. In both ABM packages H- and O-isotope exchange was more progressed at higher temperatures but the mechanisms for H- and O-isotope exchange proceeded differently. H-isotope compositions nearly reached modeled equilibrium values at temperatures between 130 and 150 °C in the absence of any smectite alteration, which suggests proton exchange as the exchange mechanism. The percentage of exchange calculated for oxygen showed that it was far from reaching equilibrium and was more resistant to exchange than hydrogen. A dissolution/re-precipitation mechanism involving fine smectite most simply explains calculated percentages of oxygen exchanged that range between initial and modeled equilibrium O-isotope compositions.</div></div>","PeriodicalId":245,"journal":{"name":"Applied Clay Science","volume":"275 ","pages":"Article 107878"},"PeriodicalIF":5.3,"publicationDate":"2025-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144125089","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A review on the effect of iron on bentonite stability","authors":"J. Wilson ,&nbsp;H. Sasamoto ,&nbsp;Y. Tachi ,&nbsp;D. Kawama","doi":"10.1016/j.clay.2025.107862","DOIUrl":"10.1016/j.clay.2025.107862","url":null,"abstract":"<div><div>High-Level Radioactive Waste (HLW) repositories may include iron or steel-based containers/overpack and bentonite buffers. Over the last approximately 25 years, research efforts have attempted to elucidate the nature of iron-bentonite interactions, especially the potential for the swelling clay component (smectite), to undergo alteration to iron-rich clay minerals which may lack intracrystalline swelling. This could reduce swelling pressure in the bentonite buffer which is intended to protect waste containers from shear forces and restrict water and solute transport. Most data on iron-bentonite interactions come from experimental and geochemical modelling studies, as natural analogue data are lacking. The data suggests that there is the potential for the development of an iron-rich bentonite alteration zone with primary smectite (montmorillonite) undergoing alteration to iron-rich solids, including clay minerals and typical steel corrosion products such as “green rust” or magnetite (Fe₃O₄). The evidence available is complex with many potential complex couplings. Uncertainties remain despite efforts taken over many years, but plausible scenarios for iron-bentonite interactions have been identified and implications for buffer properties have been suggested. Future efforts to further elucidate iron-bentonite interactions could focus on validating thermodynamic data for iron-rich clays, exploring the transport and engineering properties of altered bentonite, and developing more advanced reactive-transport models that include multi-phase phenomena, and a more realistic approach to bentonite porewater representation.</div></div>","PeriodicalId":245,"journal":{"name":"Applied Clay Science","volume":"275 ","pages":"Article 107862"},"PeriodicalIF":5.3,"publicationDate":"2025-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144090715","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fabrication of nonionic surfactant modified montmorillonite for alginate/organo-montmorillonite composite fibers based hydrophobic pharmaceutical formulations","authors":"Yanan Bu ,&nbsp;Xiuqiong Chen ,&nbsp;Ting Wu ,&nbsp;Jiji Fan ,&nbsp;Haizhen Dai ,&nbsp;Huiqiong Yan ,&nbsp;Qiang Lin","doi":"10.1016/j.clay.2025.107867","DOIUrl":"10.1016/j.clay.2025.107867","url":null,"abstract":"<div><div>In view of the excellent interfacial activity and biocompatibility of dodecyl polyglucoside (C12-APG), natural sodium montmorillonite (Na-Mt) was organically modified by C12-APG via wet ball milling approach to change its strong polarity and enhance its affinity to hydrophobic anti-inflammatory and antibacterial drugs. Furthermore, the resultant organo-montmorillonite (OMt) was dispersed in sodium alginate (SA) matrix to fabricate alginate/OMt composite fibers (Alg/OMt CFs) through wet spinning technique to achieve their good mechanical properties, enhanced drug encapsulation and durable drug release performance. The characterization results of OMt showed that the organic modification mechanism of C12-APG on Na-Mt was considered to be physical intercalation, that was, with the assistance of mechanical forces, C12-APG was physically inserted into the interlayer of Na-Mt, which not only enlarged the d-spacing and improved the thermal stability of C12-APG in the interlayer, but also effectively changed the strong polarity of Na-Mt and enhanced its affinity to hydrophobic triclosan, thereby improving its adsorption capacity to triclosan from 34.965 mg/g to 45.249 mg/g. Moreover, the fabricated Alg/OMt CFs exhibited connected pore structure and regular morphology, and their encapsulation efficiency (EE) and drug loading capacity (DLC) were as high as 92 ± 3.1 % and 4.4 ± 0.18 %, presenting good affinity of OMt to triclosan. Additionally, Alg/OMt CFs could release triclosan continuously for 87 h, displaying good sustained release performance. Finally, the results of cytotoxicity test indicated that Alg/OMt CFs had exceptional cytocompatibility. Given their interconnected pore structure, uniform morphology, high drug loading capacity, favorable sustained release characteristics, and exceptional cytocompatibility, Alg/OMt CFs could serve as a hydrophobic anti-inflammatory and antibacterial pharmaceutical formulation in the domain of functional wound dressings.</div></div>","PeriodicalId":245,"journal":{"name":"Applied Clay Science","volume":"275 ","pages":"Article 107867"},"PeriodicalIF":5.3,"publicationDate":"2025-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144090714","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Advanced OER catalysts: MnCo-LDH integrated with NiP2 and Ni5P4 metal phosphides for superior water splitting performance","authors":"Rahadian Zainul ,&nbsp;Ali B.M. Ali ,&nbsp;Tariq J. Al-Musawi ,&nbsp;Anjan Kumar ,&nbsp;Pawan Sharma ,&nbsp;Shaxnoza Saydaxmetova ,&nbsp;Reem Hamdan KHaddour ,&nbsp;Abdulrahman A. Almehizia ,&nbsp;Khursheed Muzammil","doi":"10.1016/j.clay.2025.107868","DOIUrl":"10.1016/j.clay.2025.107868","url":null,"abstract":"<div><div>The oxygen evolution reaction (OER) is a critical step in water splitting, essential for renewable energy systems. This study presented advanced OER electrocatalysts composed of manganese‑cobalt layered double hydroxides (MnCo-LDH) integrated with nickel phosphides (NiP₂ and Ni₅P₄). The MnCo-LDH@NiP₂ and MnCo-LDH@Ni₅P₄ composites were synthesized via layer-by-layer electrochemical deposition on steel substrates. Characterization through X-ray diffraction (XRD), scanning electron microscopy (SEM), and X-ray photoelectron spectroscopy (XPS) confirmed the successful formation and integration of the composites. The MnCo-LDH@NiP₂ and MnCo-LDH@Ni₅P₄ electrodes demonstrated superior OER activity with overpotentials of 276 mV and 318 mV at 100 mA cm⁻², respectively, significantly lower than 423 mV for MnCo-LDH alone. Tafel slopes of 53.2 mV dec⁻¹ for MnCo-LDH@NiP₂ and 60.9 mV dec⁻¹ for MnCo-LDH@Ni₅P₄ indicated enhanced reaction kinetics compared to 84.0 mV dec⁻¹ for MnCo-LDH. Electrochemical impedance spectroscopy (EIS) showed reduced charge transfer resistance (<em>R</em>_ct) for MnCo-LDH@NiP₂ (0.62 Ω cm²) and MnCo-LDH@Ni₅P₄ (0.77 Ω cm²), outperforming MnCo-LDH (1.01 Ω cm²). These findings along with the results from stability test highlighted the potential of MnCo-LDH integrated with nickel phosphides as highly efficient and stable OER catalysts.</div></div>","PeriodicalId":245,"journal":{"name":"Applied Clay Science","volume":"275 ","pages":"Article 107868"},"PeriodicalIF":5.3,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144090055","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sorption mechanism of europium(III) onto metakaolin-based geopolymers","authors":"Anıl C. Yıldırım ,&nbsp;Huiyang Mei ,&nbsp;Kanako Toda ,&nbsp;Noboru Aoyagi ,&nbsp;Takumi Saito","doi":"10.1016/j.clay.2025.107853","DOIUrl":"10.1016/j.clay.2025.107853","url":null,"abstract":"<div><div>Metakaolin-based geopolymers (MKGPs) are ceramic-like materials used for nuclear waste stabilization. Therefore, understanding the sorption of ions on MKGPs is crucial where the cation exchange is considered as the main mechanism, yet the studies based on pH are limited. Thus, this study evaluates the effect of pH on the sorption mechanism of Eu(III) onto Na- and K-MKGPs. Here, time-resolved laser fluorescence spectroscopy (TRLFS) combined with parallel factor analysis, TRLFS in mixed D₂O/H₂O matrices, and extended X-ray absorption fine structure analysis. Eu(III) predominantly forms surface complexes with both MKGPs in the pH range of 4–11 at the open air environment, where three distinct surface species were identified at different pH values. The Eu(III) sorption mechanisms of both MKGPs are similar, involving ternary edge-sharing bidentate or monodentate inner-sphere surface complexation of Eu(III) with MKGP and silicate ions released from the MKGP up to pH 8, followed by the precipitation of Eu(OH)_3(S) within the pores of MKGP. The insights gained from this study will enhance the knowledge on MKGP for pollutant immobilization, thereby mitigating the spread of contaminants in the environment and expanding the potential application areas.</div></div>","PeriodicalId":245,"journal":{"name":"Applied Clay Science","volume":"274 ","pages":"Article 107853"},"PeriodicalIF":5.3,"publicationDate":"2025-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144071785","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Uranium coordination on clay surface at nanoscale: Integration of EXAFS data and Ab initio molecular dynamics","authors":"Anna D. Krot ,&nbsp;Evgeny V. Tararushkin ,&nbsp;Alexander L. Trigub ,&nbsp;Irina E. Vlasova ,&nbsp;Stepan N. Kalmykov","doi":"10.1016/j.clay.2025.107863","DOIUrl":"10.1016/j.clay.2025.107863","url":null,"abstract":"<div><div>Understanding the interactions between uranium and clay minerals at the molecular level is crucial for addressing environmental contamination and nuclear waste management. In this work we are focusing on the determination the molecular-level structure of uranium (VI) surface species on smectite using a combination of EXAFS spectroscopy and ab initio molecular dynamics simulations (AIMD). A set of samples was prepared with uranyl cation adsorbed on bentonite clay of three deposits at various pH and uranium concentrations. To elucidate the structure of the adsorbed species at nanoscale, AIMD simulations were carried out for uranyl coordination models at basal surface and on edge sites of clay mineral. Linear combination fitting of experimental EXAFS spectra with those calculated from AIMD trajectories allowed us to specify the fractions of each adsorbed complex configuration present at pH 3, 5 and 8. At low pH, the speciation of the adsorbed uranyl cation is mainly comprised of outer-sphere basal complex. When pH is increased to 5, edge complexes at (110) surface become predominant, and at pH 8 uranyl cation is mainly localized at (010) surface of clay mineral. With the implementation of advanced molecular dynamics simulations and spectroscopic techniques, the obtained results for the first time reveal the structure of the adsorbed uranyl complexes on clay mineral surfaces at nanoscale.</div></div>","PeriodicalId":245,"journal":{"name":"Applied Clay Science","volume":"274 ","pages":"Article 107863"},"PeriodicalIF":5.3,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144071784","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Partial substitution of TEOS with pyridyl-silanes: A route to functionalizing inner wall of imogolite nanotubes","authors":"Cristóbal Flores ,&nbsp;Karen Manquián-Cerda ,&nbsp;Carlos P. Silva ,&nbsp;Jorge Pavez ,&nbsp;Nicolás Arancibia-Miranda","doi":"10.1016/j.clay.2025.107861","DOIUrl":"10.1016/j.clay.2025.107861","url":null,"abstract":"<div><div>A new imogolite isostructure (Imo-Py) was obtained and characterized structurally and superficially, where 5 % of the TEOS was replaced by 2-(4-pyridylethyl)triethoxysilane. Incorporating the new organosilane did not cause significant inhibitions to nanotubular formation. However, an increase in the diameter and reactivity of the internal cavity of Imo-Py compared to imogolite was evidenced, attributable to the differences in charge and acidity properties of the incorporated functional groups. This study expands the family of imogolite-based nanostructures and could contribute to new technological applications.</div></div>","PeriodicalId":245,"journal":{"name":"Applied Clay Science","volume":"274 ","pages":"Article 107861"},"PeriodicalIF":5.3,"publicationDate":"2025-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143947218","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of elevated temperature on Wyoming bentonite and its implications for sorption of radioactive strontium","authors":"Gianni F. Vettese ,&nbsp;Xiaodong Li ,&nbsp;Afrida Fairuz ,&nbsp;Taavi Vierinen ,&nbsp;Lilia Sirén ,&nbsp;Damien Prieur ,&nbsp;Nina Huittinen ,&nbsp;Kathleen A. Law ,&nbsp;René Bes ,&nbsp;Mika Niskanen ,&nbsp;Noora Pakkanen ,&nbsp;Markus Olin ,&nbsp;Marja Siitari-Kauppi","doi":"10.1016/j.clay.2025.107865","DOIUrl":"10.1016/j.clay.2025.107865","url":null,"abstract":"<div><div>Bentonite is a key barrier material in deep geological facilities for spent nuclear fuel, where it may be exposed to temperatures &gt;100 °C because of radiogenic heating. Understanding how prolonged heating affects its physicochemical properties and radionuclide retention capacity is critical for ensuring long-term repository safety. This study investigated the impacts of dry heating (unconfined, evaporation allowed) at 150 °C for 36 months on the mineralogical and geochemical stability of a Wyoming bentonite, chosen for the Finnish geological disposal facility, and its subsequent sorption behavior with ⁹⁰Sr. Although the bentonite mineralogy remained mostly stable, combined X-ray diffraction, cation exchange capacity, titrations, demonstrated partial Na to Ca exchange within montmorillonite's interlayer following heating, and specific surface area analyses revealed a &gt; 50 % reduction in specific surface area (30 to 14 m²/g). Colloid stability tests revealed that bentonite colloids did not form under repository-relevant saline conditions (<em>I</em> = 0.2 M), and heat treatment did not significantly impact colloid formation in reduced ionic-strength systems. Sorption isotherms demonstrated that Sr sorption was strongly pH-dependent, increasing from ∼40 % at pH 8 to ∼90 % at pH 13, and heating slightly enhanced Sr retention at pH 8. Two-site protolysis non-electrostatic surface complexation and cation exchange modelling suggested that in unheated bentonite, Sr was bound via a combination of surface complexation (∼30 %) and cation exchange (∼70 %) at pH 8, while at pH 13, sorption shifted towards surface complexation. However, after heating, cation exchange dominated at both pH values. Extended X-ray absorption fine structure analysis confirmed outer-sphere Sr sorption at pH 8 and increasing inner-sphere complexation at pH 13. Together, these findings highlight that despite minor physicochemical alterations, bentonite retained its Sr sorption potential, supporting its continued suitability as a buffer material in the ONKALO® repository.</div></div>","PeriodicalId":245,"journal":{"name":"Applied Clay Science","volume":"274 ","pages":"Article 107865"},"PeriodicalIF":5.3,"publicationDate":"2025-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144067996","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}