V. Gutsanu, O. Petuhov, A.-M. Ipate, G. Lisa, M. Botnaru
{"title":"金属/碳复合材料:获得新型吸附剂-催化剂的前驱体","authors":"V. Gutsanu, O. Petuhov, A.-M. Ipate, G. Lisa, M. Botnaru","doi":"10.1134/s1061933x23600537","DOIUrl":null,"url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract—</h3><p>Obtaining new sorbents-catalysts with selective properties is of particular interest. A series of metal/activated carbon composites with sorption and catalytic properties has been obtained and studied: AC-Mn1, AC-Mn2, AC-Mn1S, AC-Mn2S, AC-Cu1, AC-Co1, and AC-0. The composites were obtained from local raw materials by the hydrothermal method. SEM EDX methods were used to determine the morphology of the particles of compounds in the carbon phase and the average elemental composition of the surface. The detection of crystalline phases and functional groups of the organic compounds in the samples was carried out with XRD method and FT-IR spectroscopy, respectively. The thermal stability of the researched materials was performed thermogravimetrically in the temperature range 20–700°C. All analyzed samples have a good thermal stability; the decomposition in air atmosphere begins at temperatures higher than 240°C. The physicochemical and sorption characteristics of the materials were studied by N<sub>2</sub> sorption at –196°C. The tests have shown that the studied composites have the ability to transform (remove) nitrite ions in solution.</p>","PeriodicalId":521,"journal":{"name":"Colloid Journal","volume":null,"pages":null},"PeriodicalIF":1.4000,"publicationDate":"2023-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Metal/Carbon Composites: Precursors for Obtaining New Sorbents-Catalysts\",\"authors\":\"V. Gutsanu, O. Petuhov, A.-M. Ipate, G. Lisa, M. Botnaru\",\"doi\":\"10.1134/s1061933x23600537\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<h3 data-test=\\\"abstract-sub-heading\\\">Abstract—</h3><p>Obtaining new sorbents-catalysts with selective properties is of particular interest. A series of metal/activated carbon composites with sorption and catalytic properties has been obtained and studied: AC-Mn1, AC-Mn2, AC-Mn1S, AC-Mn2S, AC-Cu1, AC-Co1, and AC-0. The composites were obtained from local raw materials by the hydrothermal method. SEM EDX methods were used to determine the morphology of the particles of compounds in the carbon phase and the average elemental composition of the surface. The detection of crystalline phases and functional groups of the organic compounds in the samples was carried out with XRD method and FT-IR spectroscopy, respectively. The thermal stability of the researched materials was performed thermogravimetrically in the temperature range 20–700°C. All analyzed samples have a good thermal stability; the decomposition in air atmosphere begins at temperatures higher than 240°C. The physicochemical and sorption characteristics of the materials were studied by N<sub>2</sub> sorption at –196°C. The tests have shown that the studied composites have the ability to transform (remove) nitrite ions in solution.</p>\",\"PeriodicalId\":521,\"journal\":{\"name\":\"Colloid Journal\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":1.4000,\"publicationDate\":\"2023-12-10\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Colloid Journal\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://doi.org/10.1134/s1061933x23600537\",\"RegionNum\":4,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Colloid Journal","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1134/s1061933x23600537","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
Metal/Carbon Composites: Precursors for Obtaining New Sorbents-Catalysts
Abstract—
Obtaining new sorbents-catalysts with selective properties is of particular interest. A series of metal/activated carbon composites with sorption and catalytic properties has been obtained and studied: AC-Mn1, AC-Mn2, AC-Mn1S, AC-Mn2S, AC-Cu1, AC-Co1, and AC-0. The composites were obtained from local raw materials by the hydrothermal method. SEM EDX methods were used to determine the morphology of the particles of compounds in the carbon phase and the average elemental composition of the surface. The detection of crystalline phases and functional groups of the organic compounds in the samples was carried out with XRD method and FT-IR spectroscopy, respectively. The thermal stability of the researched materials was performed thermogravimetrically in the temperature range 20–700°C. All analyzed samples have a good thermal stability; the decomposition in air atmosphere begins at temperatures higher than 240°C. The physicochemical and sorption characteristics of the materials were studied by N2 sorption at –196°C. The tests have shown that the studied composites have the ability to transform (remove) nitrite ions in solution.
期刊介绍:
Colloid Journal (Kolloidnyi Zhurnal) is the only journal in Russia that publishes the results of research in the area of chemical science dealing with the disperse state of matter and surface phenomena in disperse systems. The journal covers experimental and theoretical works on a great variety of colloid and surface phenomena: the structure and properties of interfaces; adsorption phenomena and structure of adsorption layers of surfactants; capillary phenomena; wetting films; wetting and spreading; and detergency. The formation of colloid systems, their molecular-kinetic and optical properties, surface forces, interaction of colloidal particles, stabilization, and criteria of stability loss of different disperse systems (lyosols and aerosols, suspensions, emulsions, foams, and micellar systems) are also topics of the journal. Colloid Journal also includes the phenomena of electro- and diffusiophoresis, electro- and thermoosmosis, and capillary and reverse osmosis, i.e., phenomena dealing with the existence of diffusion layers of molecules and ions in the vicinity of the interface.