OOIR: Observatory of International Research

Papers

(The median citation count of Clays and Clay Minerals is 2. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2022-05-01 to 2026-05-01.)

Article	Citations
Rare Earth and Critical Element Chemistry of the Volcanic Ash-fall Parting in the Fire Clay Coal, Eastern Kentucky, USA	78
Comparison of Epithermal Kaolin Deposits from the Etili Area (Çanakkale, Turkey): Mineralogical, Geochemical, and Isotopic Characteristics	53
Calcined Palygorskites as Supplementary Cementitious Materials	30
Stability of Gaomiaozi bentonite: Interlayer hydration structure and aggregation morphology	25
XPS characterization of benzethonium and cetylpyridinium-lauroyl sarcosinate-loaded organomontmorillonites and their antibacterial properties against Actinomyces viscosus	22
The making of kaolinite suspension time-dependent in the structural rejuvenation mode – the face charge hypothesis	18
Review of secondary phases formed under natural alkaline conditions at low temperatures and implications for cement–bentonite interactions in radioactive waste repositories	18
Highly efficient TiO₂-pillared smectite clay with Ni and Co doping for Rhodamine B removal: kinetics of adsorption and photodegradation	16
Mechanism of sand–bentonite barrier cushion consolidation–rebound deformation under diesel erosion	16
Low-cost membrane supports for wastewater treatment made from local clay and calcite mixtures	14
Effects of occurrence form of soil organic matter on the Atterberg limits and thermal conductivity of clays	12
Development and Characterization of Sintered Zeolite and Zeolite-Kaolin Wick Structure for Thermosiphon Heat-Pipe Application	11
Tungstate intercalated Mg-Al layered double hydroxide and its derived mixed metal oxide: preparation, characterization, and investigation of optical, electrical, and dielectric properties	11
On the Unusual Temperature Dependence of Kaolinite Intercalation Capacity for N-methylformamide	10
Influence of pH on the Hydrothermal Synthesis of Al-Substituted Smectites (Saponite, Beidellite, and Nontronite)	10
A machine learning technique for estimating the zeta potential of clay minerals under various brine conditions	10
Synthesis and Characterization of Non-leaching Inorgano- and Organo-montmorillonites and their Bactericidal Properties Against Streptococcus Mutans	10
Multidisciplinary insights into zeolite and clay formation in hydrothermally altered volcanic rocks of Çubuk, Turkey	10
Rare-Earth Minerals in Kaolin Ore, Mine Tailings, and Sands – Central Georgia, Upper Coastal Plain	9
Experimental Peloid Formulation Using a Portuguese Bentonite and Different Mineral-Medicinal Waters Suitable for Therapeutic and Well-being Purposes	9
Intercalation of the natural pigments, betalains, in a Tunisian smectitic clay: a green synthesis	9
Comparative study of the adsorption of tetracycline on clay minerals with various nanostructures: allophane, halloysite, and montmorillonite	8
A sustainable platform of polydopamine-functionalization of alkali-activated halloysite nanotubes for efficient β-glucosidase immobilization	8
Montmorillonite as an Anti-Tuberculosis Rifampicin Drug Carrier: DFT and Experimental Study	8
Characterization Study of some Bauxite Deposits in Northern Brazil	8

In Memoriam: Selahattin Kadir 1956–2025	8
Smectite–brine–CO₂ interactions: effects of interlayer chemistry, brine concentration, CO₂ pressure, and temperature	8
Occurrence of Iron in the Minerals of Carboniferous Coal Gangue of the Pingshuo Open-pit Mine, North China	8
Mobility of essential macro- and micro-elements in interaction between artificial sweat and potential peloids of some saline lakes in Mongolia	7
Molecular Dynamics Simulation of Pore-Size Effects on Gas Adsorption Kinetics in Zeolites	7
Transparent thin films of binaphthyl-derivative-smectite hybrids exhibiting circularly polarized luminescence	7
The pH-dependent adsorption of Ni ²⁺ ions to sepiolite considering Ni precipitation	7
Creep Mechanical Properties and Constitutive Model of Hard Brittle Mud Shale	7
Porewater Content, Pore Structure and Water Mobility in Clays and Shales from NMR Methods	7
Determining the stoichiometric composition of Wyoming montmorillonite using improved transmission electron microscopy-energy dispersive X-ray (TEM-EDX) techniques	7
Application of an improved TEM-EDS protocol based on charge balance for accurate chemical analysis of sub-micrometric phyllosilicates in low-grade metamorphic rocks	7
Variation in the structural order of kaolinite in regolith as an effective indicator of REE mineralization	7
Electrochemical Study of Methoxykaolinite Interactions with Cations and Application to Trace-Level Detection of Pb(II) in Various Aqueous Media	6
Methods for Determination of the Layer Charge of Smectites: A Critical Assessment of Existing Approaches	6
Compressibility Behavior of Bentonites by Stern Theory based on Constant Surface Charge Conditions	6
Ionic dissolution and structural evolution of chrysotile and lizardite at the mineral–water interface: reactions in sulfuric acid solution	6
Aflatoxin Adsorption by Natural and Heated Sepiolite and Palygorskite in Comparison with Adsorption by Smectite	6
Role of clay cation exchange capacity, location of charge, and clay mineralogy on potassium availability in Indian Vertisols	6
Minerals for wastewater purification: a case study	6
Characterization and Assessment of Natural Amazonian Clays for Cosmetics-Industry Applications	6
Development of a Nanostructured Film Containing Palygorskite and Dermaseptin 01 Peptide for Biotechnological Applications	6
Ceramics Properties of Indurated-Shale Quarry Wastes from Abakaliki, Southeastern Nigeria: Application as Raw Materials in Roofing-Tile Production	5
Crystallization between (100) Goethite and (001) Orientation of Hematite – A Review	5
Preparation and Corrosive Anion-curing Capability of Layered Double Hydroxide (LDH)/Montmorillonite Composites	5
Correction to: Formation of Humboldtine During the Dissolution of Hematite in Oxalic Acid – Density Functional Theory (DFT) Calculations and Experimental Verification	5
Unlocking the potential of V/Ti-AAC: a promising eco-friendly catalyst for cyclohexene epoxidation	5
Thermal Analysis and Thermal Reactions of Smectites: a Review of Methodology, Mechanisms, and Kinetics	5
The effects of bentonite characteristics and buffer solution composition on the adsorption of aflatoxin B1	5
Hydration Structure and Energetics of Iron-Exchanged Montmorillonite	4
Enhanced quality control and smectite quantification for bentonites in the Bavarian mining district based on layer charge measurement with the O-D method	4
Preparation and Characterization of Porous Palygorskite/Carbon Composites through Zinc Chloride Activation for Wastewater Treatment	4
Effect of pre-treatments on analcime synthesis from abundant clay-rich illite	4
Microscopic observations of smectite cation exchange in the absence of free water: implications for the evolution of Mars sediments	4
Effects of the Inclusion of Ce and Ni Species on Ti for Modification of K10-Clay by Sol-Gel and their Use as Catalysts in the Liquid-Phase Esterification Systems	4
Characterization of Iron-Rich Phyllosilicates Formed at Different Fe/Si Ratios	4
Effect of the SiO₂/Al₂O₃ Molar Ratio on the Microstructure and Properties of Clay-based Geopolymers: A Comparative Study of Kaolinite-based and Halloysite-based Geopol	4
Super-efficient Reduction of 4-nitrophenol Using Raw Pelagic Clays as Catalysts	4
Investigating clay swelling and permeability impairment in sandstone formations during steam flooding	4
Effect of a Water Phase on the Swelling Pressure and Water Retention of an Unsaturated Bentonite–Sand Mixture with Insignificant Osmotic Suction	4
Experimental study on improving the swelling and shrinkage properties of expansive soil based on microbial promotion of mineral-phase change	4
Duane M. (Dewey) Moore (1933–2024)	3
Effect of temperature on the synthesis of g-C₃N₄/montmorillonite and its visible-light photocatalytic properties	3
A New Preparation Method for cis-1,4-polyisoprene/Na-montmorillonite Latex Composites by in situ Solution Emulsification	3
Mobility patterns of rare earth elements in diagenetically altered vitric tuff shaped by illite-smectite	3
Factors affecting the bleaching performance of thermally activated palygorskite and palygorskite-smectite clays from the Ventzia Basin, west Macedonia, Greece	3
A molecular dynamics simulation study of paraquat intercalated montmorillonite	3
Genesis of Smectites associated with a Coal Seams Succession in the Neogene Orhaneli and Keles Coal Deposits (Bursa), NW Turkey	3
Raw Materials Used in Traditional Pottery from Northern Morocco: Possible Alternative Material for a Sustainable Future in the Fran Ali Area	3
Hydrophilic complexes and carbonation effects in alkali-activated clayey mudstone with press mud, an organic Ca/Fe-rich by-product of sugar refining	3
Efficacy of Two Texas Bentonites in Binding Aflatoxin B1 and in Reducing Aflatoxicosis in Broilers	3

Design Approaches, Functionalization, and Environmental and Analytical Applications of Magnetic Halloysite Nanotubes: A Review	3
Composite Nanoarchitectonics of LaNi_0.95Fe_0.05O₃/Muscovite for Enhanced Photocatalytic Activity	3
High-temperature-resistant organoclay via quaternary ammonium salt and silane co-modification for oil-based drilling fluids	3
Mineralogy, Chemistry, and Thermal and Surface Properties of Various Technological Types of K-Bentonite from the Dolná Ves Deposit (Kremnické vrchy Mts., Western Carpathians, Slovakia)	2
Tuning the Acidity of Montmorillonite by H₃PO₄-Activation and Supporting WO₃ for Catalytic Dehydration of Glycerol to Acrolein	2
Iron Removal from Kaolin Waste Dumps by Chemical (Oxalic and Citric Acids) and Biological (Bacillus Strain) Leaching	2
Facies, Geochemistry, and Ceramic Properties of Corumbataí Formation, Upper Permian of Paraná Basin, and its Application in the Ceramic Industry, Brazil	2
Enhanced Adsorption Of Humic Acid On Amino-Modified Bentonite	2
Development and characterization of organically grafted clay minerals for the removal of methylene blue from water	2
Influence of force field on clay–water contact angle determination using molecular dynamics	2
Evolution of Alkali Release by an Illitic Rock for Use as Supplementary Cementitious Material	2
A Review of the Reactivity of Phosphatase Controlled by Clays and Clay Minerals: Implications for Understanding Phosphorus Mineralization in Soils	2
Physicochemical Variation of Clay Minerals and Enrichment of Rare Earth Elements in Regolith-hosted Deposits: Exemplification from The Bankeng Deposit in South China	2
Effect of acid concentration and reaction time on structural and surface properties of waste mica	2
Potential Uses of Local Clay Materials for the Production of Porcelain Electrical Insulators, Ethiopia	2
Modification of the cation exchange population and CEC values of reacted bentonites of the third retrieved package of the alternative buffer material (ABM-5) experiment operated at up to 250°C	2
Geochemical and microbial indicators of smectite and zeolite formation in volcanic tuff from Pohang, South Korea	2
Low-order kaolinite from bauxite mine tailings in the Amazon as a precursor for geopolymers: mineralogical and mechanical properties	2
The role of illite in the global cycle of elements	2
Influence of Thermal Treatment of Moroccan Red Clay on its Physicochemical and Mechanical Behavior	2
Synthesis of Magnetic Sulfonated Carbon/Fe₃O₄/Palygorskite Composites and Application as a Solid Acid Catalyst	2