{"title":"Synthesis of a Diatomite-Based Calcium Metasilicate Hydrate and Investigation of Its Adsorptive and Structural Properties","authors":"A. G. Manukyan","doi":"10.1134/S0020168524700766","DOIUrl":null,"url":null,"abstract":"<p>Optimal conditions have been found for lime treatment of diatomite from the Jradzor deposit (Armenia) which ensure that the resulting calcium metasilicate hydrate has a large specific surface area, high adsorption capacity, and good filtration performance. Differential thermal analysis, IR spectroscopy, and X-ray diffraction have been used to identify the mechanism underlying the formation of a C–S–H(I) calcium metasilicate hydrate during lime treatment of diatomite. Water and benzene vapor adsorption isotherms have been used to assess adsorptive and structural properties of the C–S–H(I) calcium metasilicate hydrate and calculate parameters of its pore structure. It is shown that C–S–H(I) calcium metasilicate hydrate can be effectively used as a filtration material and adsorbent.</p>","PeriodicalId":585,"journal":{"name":"Inorganic Materials","volume":"60 5","pages":"581 - 587"},"PeriodicalIF":0.9000,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Inorganic Materials","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1134/S0020168524700766","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
摘要
已经找到了用石灰处理来自亚美尼亚 Jradzor 矿床的硅藻土的最佳条件，这些条件可确保生成的偏硅酸钙水合物具有较大的比表面积、较高的吸附能力和良好的过滤性能。差热分析、红外光谱和 X 射线衍射被用来确定硅藻土在石灰处理过程中形成 C-S-H(I)偏硅酸钙水合物的机理。利用水和苯蒸汽吸附等温线评估了 C-S-H(I)偏硅酸钙水合物的吸附和结构特性，并计算了其孔隙结构参数。结果表明，C-S-H(I) 偏硅酸钙水合物可有效用作过滤材料和吸附剂。
Synthesis of a Diatomite-Based Calcium Metasilicate Hydrate and Investigation of Its Adsorptive and Structural Properties
Optimal conditions have been found for lime treatment of diatomite from the Jradzor deposit (Armenia) which ensure that the resulting calcium metasilicate hydrate has a large specific surface area, high adsorption capacity, and good filtration performance. Differential thermal analysis, IR spectroscopy, and X-ray diffraction have been used to identify the mechanism underlying the formation of a C–S–H(I) calcium metasilicate hydrate during lime treatment of diatomite. Water and benzene vapor adsorption isotherms have been used to assess adsorptive and structural properties of the C–S–H(I) calcium metasilicate hydrate and calculate parameters of its pore structure. It is shown that C–S–H(I) calcium metasilicate hydrate can be effectively used as a filtration material and adsorbent.
期刊介绍：
Inorganic Materials is a journal that publishes reviews and original articles devoted to chemistry, physics, and applications of various inorganic materials including high-purity substances and materials. The journal discusses phase equilibria, including P–T–X diagrams, and the fundamentals of inorganic materials science, which determines preparatory conditions for compounds of various compositions with specified deviations from stoichiometry. Inorganic Materials is a multidisciplinary journal covering all classes of inorganic materials. The journal welcomes manuscripts from all countries in the English or Russian language.
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