{"title":"通过高温活化制备的碳吸附剂在染料水溶液净化过程中的应用研究","authors":"E. S. Mkrtchyan, A. A. Popova, I. N. Shubin","doi":"10.1134/s2075113324020333","DOIUrl":null,"url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The sorption capacity of a highly porous carbon material obtained via high-temperature alkaline activation and activation with additional steam treatment was found. The resulting activated highly porous carbon material possessed a specific surface area of 2600–2700 m<sup>2</sup>/g and a pore volume of more than 1.3 cm<sup>3</sup>/g. High sorption activity was revealed relative to methylene blue (1075, 1865, and 2010 mg/g for carbonizate, AC-1, and AC-2, respectively) and the sunset (66, 934, and 972 mg/g for carbonizate, AC-1, and AC-2, respectively) organic dyes. The time to reach sorption equilibrium for the sorbents was found to be from 15 to 30 min. The resulting kinetic data were processed with pseudo-first-order and pseudo-second-order, Elovich, and intraparticle diffusion models. The pseudo-second-order model provided the highest correlation coefficients <i>R</i><sup>2</sup> (when methylene blue dye molecules are removed, <i>R</i><sup>2</sup> for AC-2, AC-1, and carbonizate are 1, 1, and 0.9999, respectively; when sunset dye molecules are removed, <i>R</i><sup>2</sup> for AC-2, AC-1, and carbonizate are 1, 0.9999, and 0.9994, respectively). It was found that the chemical interaction proceeds between dye molecules and functional groups of a sorbent. It was revealed that the activated carbon material can serve as a highly effective absorber of organic pollutants from aqueous solutions.</p>","PeriodicalId":586,"journal":{"name":"Inorganic Materials: Applied Research","volume":null,"pages":null},"PeriodicalIF":0.5000,"publicationDate":"2024-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A Study of Promising Carbon Sorbents Prepared via High-Temperature Activation in Purification Processes of Aqueous Solutions from Dyes\",\"authors\":\"E. S. Mkrtchyan, A. A. Popova, I. N. Shubin\",\"doi\":\"10.1134/s2075113324020333\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<h3 data-test=\\\"abstract-sub-heading\\\">Abstract</h3><p>The sorption capacity of a highly porous carbon material obtained via high-temperature alkaline activation and activation with additional steam treatment was found. The resulting activated highly porous carbon material possessed a specific surface area of 2600–2700 m<sup>2</sup>/g and a pore volume of more than 1.3 cm<sup>3</sup>/g. High sorption activity was revealed relative to methylene blue (1075, 1865, and 2010 mg/g for carbonizate, AC-1, and AC-2, respectively) and the sunset (66, 934, and 972 mg/g for carbonizate, AC-1, and AC-2, respectively) organic dyes. The time to reach sorption equilibrium for the sorbents was found to be from 15 to 30 min. The resulting kinetic data were processed with pseudo-first-order and pseudo-second-order, Elovich, and intraparticle diffusion models. The pseudo-second-order model provided the highest correlation coefficients <i>R</i><sup>2</sup> (when methylene blue dye molecules are removed, <i>R</i><sup>2</sup> for AC-2, AC-1, and carbonizate are 1, 1, and 0.9999, respectively; when sunset dye molecules are removed, <i>R</i><sup>2</sup> for AC-2, AC-1, and carbonizate are 1, 0.9999, and 0.9994, respectively). It was found that the chemical interaction proceeds between dye molecules and functional groups of a sorbent. It was revealed that the activated carbon material can serve as a highly effective absorber of organic pollutants from aqueous solutions.</p>\",\"PeriodicalId\":586,\"journal\":{\"name\":\"Inorganic Materials: Applied Research\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.5000,\"publicationDate\":\"2024-05-27\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Inorganic Materials: Applied Research\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1134/s2075113324020333\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Inorganic Materials: Applied Research","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1134/s2075113324020333","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
A Study of Promising Carbon Sorbents Prepared via High-Temperature Activation in Purification Processes of Aqueous Solutions from Dyes
Abstract
The sorption capacity of a highly porous carbon material obtained via high-temperature alkaline activation and activation with additional steam treatment was found. The resulting activated highly porous carbon material possessed a specific surface area of 2600–2700 m2/g and a pore volume of more than 1.3 cm3/g. High sorption activity was revealed relative to methylene blue (1075, 1865, and 2010 mg/g for carbonizate, AC-1, and AC-2, respectively) and the sunset (66, 934, and 972 mg/g for carbonizate, AC-1, and AC-2, respectively) organic dyes. The time to reach sorption equilibrium for the sorbents was found to be from 15 to 30 min. The resulting kinetic data were processed with pseudo-first-order and pseudo-second-order, Elovich, and intraparticle diffusion models. The pseudo-second-order model provided the highest correlation coefficients R2 (when methylene blue dye molecules are removed, R2 for AC-2, AC-1, and carbonizate are 1, 1, and 0.9999, respectively; when sunset dye molecules are removed, R2 for AC-2, AC-1, and carbonizate are 1, 0.9999, and 0.9994, respectively). It was found that the chemical interaction proceeds between dye molecules and functional groups of a sorbent. It was revealed that the activated carbon material can serve as a highly effective absorber of organic pollutants from aqueous solutions.
期刊介绍:
Inorganic Materials: Applied Research contains translations of research articles devoted to applied aspects of inorganic materials. Best articles are selected from four Russian periodicals: Materialovedenie, Perspektivnye Materialy, Fizika i Khimiya Obrabotki Materialov, and Voprosy Materialovedeniya and translated into English. The journal reports recent achievements in materials science: physical and chemical bases of materials science; effects of synergism in composite materials; computer simulations; creation of new materials (including carbon-based materials and ceramics, semiconductors, superconductors, composite materials, polymers, materials for nuclear engineering, materials for aircraft and space engineering, materials for quantum electronics, materials for electronics and optoelectronics, materials for nuclear and thermonuclear power engineering, radiation-hardened materials, materials for use in medicine, etc.); analytical techniques; structure–property relationships; nanostructures and nanotechnologies; advanced technologies; use of hydrogen in structural materials; and economic and environmental issues. The journal also considers engineering issues of materials processing with plasma, high-gradient crystallization, laser technology, and ultrasonic technology. Currently the journal does not accept direct submissions, but submissions to one of the source journals is possible.