{"title":"以 BET 为基础的矿物表面积定量:氮与水的比较","authors":"Thomas M. Blattmann , Michael Plötze","doi":"10.1016/j.clay.2024.107477","DOIUrl":null,"url":null,"abstract":"<div><p>Water is a ubiquitous adsorbate relevant for many natural systems and engineering applications. Water adsorption behavior on clays, sediments, soils, and related geomaterials was studied for over a century and fueled a continuous discussion on the meaning of water sorption as a measure of mineral surface area (MSA). Despite this, MSA quantification using nitrogen established itself as the most widely accepted approach despite the relevance of water for a wide spectrum of in-situ environmental conditions. Many attempts at water-based MSA measurements are reported in dispersed literature. To date, interlaboratory comparison of MSA has been hampered by disparate methodologies for conducting measurements using both water and nitrogen adsorbates. Water and nitrogen-based MSA both using the BET equation for a variety of minerals and mineral matrices relevant for earth, environmental, and clay science was compiled in this contribution. The historical development of water-based MSA determination is also reviewed. The overlay of multitude of factors including mineralogy, interlayer spaces, organic matter, structural water, electrostatic interactions, microstructure, sample preparation and measurement conditions, influencing both nitrogen and water-based MSA quantities are discussed and general guidance is provided on the interpretation of complex MSA datasets.</p></div>","PeriodicalId":245,"journal":{"name":"Applied Clay Science","volume":null,"pages":null},"PeriodicalIF":5.3000,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0169131724002254/pdfft?md5=f608efb79de760704b2c097739b7c1ae&pid=1-s2.0-S0169131724002254-main.pdf","citationCount":"0","resultStr":"{\"title\":\"BET-based mineral surface area quantification comparing nitrogen with water\",\"authors\":\"Thomas M. Blattmann , Michael Plötze\",\"doi\":\"10.1016/j.clay.2024.107477\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Water is a ubiquitous adsorbate relevant for many natural systems and engineering applications. Water adsorption behavior on clays, sediments, soils, and related geomaterials was studied for over a century and fueled a continuous discussion on the meaning of water sorption as a measure of mineral surface area (MSA). Despite this, MSA quantification using nitrogen established itself as the most widely accepted approach despite the relevance of water for a wide spectrum of in-situ environmental conditions. Many attempts at water-based MSA measurements are reported in dispersed literature. To date, interlaboratory comparison of MSA has been hampered by disparate methodologies for conducting measurements using both water and nitrogen adsorbates. Water and nitrogen-based MSA both using the BET equation for a variety of minerals and mineral matrices relevant for earth, environmental, and clay science was compiled in this contribution. The historical development of water-based MSA determination is also reviewed. The overlay of multitude of factors including mineralogy, interlayer spaces, organic matter, structural water, electrostatic interactions, microstructure, sample preparation and measurement conditions, influencing both nitrogen and water-based MSA quantities are discussed and general guidance is provided on the interpretation of complex MSA datasets.</p></div>\",\"PeriodicalId\":245,\"journal\":{\"name\":\"Applied Clay Science\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":5.3000,\"publicationDate\":\"2024-07-03\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.sciencedirect.com/science/article/pii/S0169131724002254/pdfft?md5=f608efb79de760704b2c097739b7c1ae&pid=1-s2.0-S0169131724002254-main.pdf\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Applied Clay Science\",\"FirstCategoryId\":\"89\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0169131724002254\",\"RegionNum\":2,\"RegionCategory\":\"地球科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Applied Clay Science","FirstCategoryId":"89","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0169131724002254","RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
BET-based mineral surface area quantification comparing nitrogen with water
Water is a ubiquitous adsorbate relevant for many natural systems and engineering applications. Water adsorption behavior on clays, sediments, soils, and related geomaterials was studied for over a century and fueled a continuous discussion on the meaning of water sorption as a measure of mineral surface area (MSA). Despite this, MSA quantification using nitrogen established itself as the most widely accepted approach despite the relevance of water for a wide spectrum of in-situ environmental conditions. Many attempts at water-based MSA measurements are reported in dispersed literature. To date, interlaboratory comparison of MSA has been hampered by disparate methodologies for conducting measurements using both water and nitrogen adsorbates. Water and nitrogen-based MSA both using the BET equation for a variety of minerals and mineral matrices relevant for earth, environmental, and clay science was compiled in this contribution. The historical development of water-based MSA determination is also reviewed. The overlay of multitude of factors including mineralogy, interlayer spaces, organic matter, structural water, electrostatic interactions, microstructure, sample preparation and measurement conditions, influencing both nitrogen and water-based MSA quantities are discussed and general guidance is provided on the interpretation of complex MSA datasets.
期刊介绍:
Applied Clay Science aims to be an international journal attracting high quality scientific papers on clays and clay minerals, including research papers, reviews, and technical notes. The journal covers typical subjects of Fundamental and Applied Clay Science such as:
• Synthesis and purification
• Structural, crystallographic and mineralogical properties of clays and clay minerals
• Thermal properties of clays and clay minerals
• Physico-chemical properties including i) surface and interface properties; ii) thermodynamic properties; iii) mechanical properties
• Interaction with water, with polar and apolar molecules
• Colloidal properties and rheology
• Adsorption, Intercalation, Ionic exchange
• Genesis and deposits of clay minerals
• Geology and geochemistry of clays
• Modification of clays and clay minerals properties by thermal and physical treatments
• Modification by chemical treatments with organic and inorganic molecules(organoclays, pillared clays)
• Modification by biological microorganisms. etc...