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http://hdl.handle.net/1843/56987| Tipo: | Artigo de Periódico |
| Título: | Control of porous size distribution on solvent-free mesoporous carbon and their use as a superadsorbent for 17α-ethinylestradiol removal |
| Autor(es): | Rayane Cristian Ferreira Silva Paula Sevenini Pinto Ana Paula de Carvalho Teixeira |
| Resumen: | This work reports the synthesis of mesoporous carbon using the solvent-free soft template method and their application for the adsorption of the emerging contaminant 17α-ethinylestradiol. For the first time, for the flexible solvent-free method, we evaluated how the precursor carbon/surfactant ratio (p/s), heating rate, stabilization time and self-assembly temperature, can influence textural properties of the materials. According to the results, the carbon source/surfactant ratio was the one which influenced textural characteristics most. The materials synthesized in p/s-1 had a smaller medium pore diameter (3.4 nm) while materials synthesized in p/s-0.5 showed an average diameter of larger pores (4.9 nm). Transmission micrographs indicated the formation of two types of pore ordering: wormholes and honeycombs. However, despite some differences in pore ordering, all materials showed textural quality. We found that the adsorption of 17α-ethinylestradiol is more affected by the diameter, volume and mesoporous content than by the type of pore ordering. Thus, materials with a high diameter and mesoporous content showed 99% removal with a maximum adsorption capacity of 157 mg/g. Also, the adsorption capacity of the material remained almost 100% until the fourth cycle and above 85% until the tenth cycle. |
| Asunto: | Carbono Adsorção Poluentes Carbono ativado |
| Idioma: | eng |
| País: | Brasil |
| Editor: | Universidade Federal de Minas Gerais |
| Sigla da Institución: | UFMG |
| Departamento: | ICX - DEPARTAMENTO DE QUÍMICA |
| Tipo de acceso: | Acesso Restrito |
| Identificador DOI: | https://doi.org/10.1016/j.cej.2020.127219 |
| URI: | http://hdl.handle.net/1843/56987 |
| Fecha del documento: | 2021 |
| metadata.dc.url.externa: | https://www.sciencedirect.com/science/article/pii/S1385894720333465 |
| metadata.dc.relation.ispartof: | Chemical Engineering Journal |
| Aparece en las colecciones: | Artigo de Periódico |
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