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Zhu M, An X, Gui T, Wu T, Li Y, Chen X. Effects of ion-exchange on the pervaporation performance and microstructure of NaY zeolite membrane. Chin J Chem Eng 2023. [DOI: 10.1016/j.cjche.2022.12.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Anggarini U, Yu L, Nagasawa H, Kanezashi M, Tsuru T. Structural transformation of the nickel coordination-induced subnanoporosity of aminosilica membranes for methanol-selective, high-flux pervaporation. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.120613] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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SUZ-4 zeolite membrane fabricated by dynamic hydrothermal crystallization for pervaporation separation of MeOH/MMA mixture. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2021.119974] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Wu X, Yan Z, Li Y, Zhu B, Gui T, Li Y, Zhu M, Zhang F, Chen X, Kita H. Fabrication of low cost and high performance NaA zeolite membranes on 100-cm-long coarse macroporous supports for pervaporation dehydration of dimethoxymethane. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.119877] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Stafin G, Grzebielucka EC, Antunes SRM, Borges CPF, de Andrade AVC, Alves SA, de Souza ÉCF. Synthesis of zeolites from residual diatomite using a microwave-assisted hydrothermal method. WASTE MANAGEMENT (NEW YORK, N.Y.) 2021; 126:853-860. [PMID: 33906051 DOI: 10.1016/j.wasman.2021.04.029] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 04/10/2021] [Accepted: 04/11/2021] [Indexed: 06/12/2023]
Abstract
Population growth directly affects the industrial production sector, as well as the quantities of waste generated in this sector. Diatomite is a typical example of such industrial waste and is used for the filtration of various products. With the aim of increasing its value, the present study employs this residue, following its usage in beer filtration, as a silicon source for the synthesis of zeolites. Two synthetic routes are used, namely, hydrothermal treatment with and without a pre-treatment step in a conventional microwave for 3-24 h. The results of the compositional and morphological characterization show that the use of a few minutes of microwave radiation reduces the process of zeolite synthesis to 15 h compared to the synthesis without pre-treatment, as well as reducing the production costs. The efficiency of microwave radiation is assessed with regards to solubilizing the residue, the possibility of employing a device of conventional use and the possibility of putting to use the diatomite residue, turning it into a versatile material that can be applied in several areas and process, such as industrial catalysts, the adsorption of environmental pollutants (ions and molecules) and water treatment via ion-exchange resins.
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Affiliation(s)
- Geovana Stafin
- Department of Chemistry, Universidade Estadual de Ponta Grossa, UEPG, 4748 General Carlos Cavalcanti Avenue, Ponta Grossa, Paraná 84030-900, Brazil
| | - Edson Cezar Grzebielucka
- Department of Chemistry, Universidade Estadual de Ponta Grossa, UEPG, 4748 General Carlos Cavalcanti Avenue, Ponta Grossa, Paraná 84030-900, Brazil
| | - Sandra Regina Masetto Antunes
- Department of Chemistry, Universidade Estadual de Ponta Grossa, UEPG, 4748 General Carlos Cavalcanti Avenue, Ponta Grossa, Paraná 84030-900, Brazil
| | | | - André Vitor Chaves de Andrade
- Department of Physics, Universidade Estadual de Ponta Grossa, UEPG, 4748 General Carlos Cavalcanti Avenue, Ponta Grossa, Paraná 84030-900, Brazil
| | - Suellen Aparecida Alves
- Department of Chemistry, Universidade Estadual de Ponta Grossa, UEPG, 4748 General Carlos Cavalcanti Avenue, Ponta Grossa, Paraná 84030-900, Brazil
| | - Éder Carlos Ferreira de Souza
- Department of Chemistry, Universidade Estadual de Ponta Grossa, UEPG, 4748 General Carlos Cavalcanti Avenue, Ponta Grossa, Paraná 84030-900, Brazil.
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