Preparation and Characterization of Low-Cost Ceramic Membrane Coated with Chitosan: Application to the Ultrafine Filtration of Cr(VI)
In this work, low-cost ceramic membranes (CMs) were prepared from ultrafine starting powders such as kaolin, clay, and starch by a dry compaction method. The ceramic membranes were sintered at different temperatures and times and were characterized by XRD, XRF, TG-DTA, SEM-EDS, N<sub>2</sub...
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| Format: | Article |
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MDPI AG
2022-08-01
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| Series: | Membranes |
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| Online Access: | https://www.mdpi.com/2077-0375/12/9/835 |
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| author | Munkhpurev Bat-Amgalan Naoto Miyamoto Naoki Kano Ganchimeg Yunden Hee-Joon Kim |
| author_facet | Munkhpurev Bat-Amgalan Naoto Miyamoto Naoki Kano Ganchimeg Yunden Hee-Joon Kim |
| author_sort | Munkhpurev Bat-Amgalan |
| collection | DOAJ |
| description | In this work, low-cost ceramic membranes (CMs) were prepared from ultrafine starting powders such as kaolin, clay, and starch by a dry compaction method. The ceramic membranes were sintered at different temperatures and times and were characterized by XRD, XRF, TG-DTA, SEM-EDS, N<sub>2</sub>-BET, water absorption, compressive strength, and pure water flux. The optimal membrane, sintered at 1000 °C for 3 h, possessed water absorption of 27.27%, a compressive strength of 31.05 MPa, and pure water flux of 20.74 L/h m<sup>2</sup>. Furthermore, chitosan crosslinked with glutaraldehyde was coated on the surface of the ceramic membrane by the dip coating method, and the pore size of the chitosan-coated ceramic membrane (CCCM) was 16.24 nm. Eventually, the separation performance of this membrane was assessed for the removal of chromium(VI) from aqueous solution. The ultrafine filtration of Cr(VI) was studied in the pH range of 2–7. The maximum removal of Cr(VI) was observed to be 71.25% with a pH of 3. The prepared CCCM showed good membrane properties such as mechanical stability and ultrafine structure, which have important applications for the treatment of wastewater including such heavy metals. |
| first_indexed | 2024-03-09T23:12:37Z |
| format | Article |
| id | doaj.art-5697b6f1b6d5406e8655cbd88f796210 |
| institution | Directory Open Access Journal |
| issn | 2077-0375 |
| language | English |
| last_indexed | 2024-03-09T23:12:37Z |
| publishDate | 2022-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Membranes |
| spelling | doaj.art-5697b6f1b6d5406e8655cbd88f7962102023-11-23T17:42:10ZengMDPI AGMembranes2077-03752022-08-0112983510.3390/membranes12090835Preparation and Characterization of Low-Cost Ceramic Membrane Coated with Chitosan: Application to the Ultrafine Filtration of Cr(VI)Munkhpurev Bat-Amgalan0Naoto Miyamoto1Naoki Kano2Ganchimeg Yunden3Hee-Joon Kim4Graduate School of Science and Technology, Niigata University, 8050 Ikarashi 2-Nocho, Nishi-ku, Niigata 950-2181, JapanDepartment of Chemistry and Chemical Engineering, Faculty of Engineering, Niigata University, 8050 Ikarashi 2-Nocho, Nishi-ku, Niigata 950-2181, JapanDepartment of Chemistry and Chemical Engineering, Faculty of Engineering, Niigata University, 8050 Ikarashi 2-Nocho, Nishi-ku, Niigata 950-2181, JapanDepartment of Chemical Engineering, School of Applied Sciences, Mongolian University of Sciences and Technology, Ulaanbaatar 14191, MongoliaDepartment of Chemistry and Chemical Engineering, Faculty of Engineering, Niigata University, 8050 Ikarashi 2-Nocho, Nishi-ku, Niigata 950-2181, JapanIn this work, low-cost ceramic membranes (CMs) were prepared from ultrafine starting powders such as kaolin, clay, and starch by a dry compaction method. The ceramic membranes were sintered at different temperatures and times and were characterized by XRD, XRF, TG-DTA, SEM-EDS, N<sub>2</sub>-BET, water absorption, compressive strength, and pure water flux. The optimal membrane, sintered at 1000 °C for 3 h, possessed water absorption of 27.27%, a compressive strength of 31.05 MPa, and pure water flux of 20.74 L/h m<sup>2</sup>. Furthermore, chitosan crosslinked with glutaraldehyde was coated on the surface of the ceramic membrane by the dip coating method, and the pore size of the chitosan-coated ceramic membrane (CCCM) was 16.24 nm. Eventually, the separation performance of this membrane was assessed for the removal of chromium(VI) from aqueous solution. The ultrafine filtration of Cr(VI) was studied in the pH range of 2–7. The maximum removal of Cr(VI) was observed to be 71.25% with a pH of 3. The prepared CCCM showed good membrane properties such as mechanical stability and ultrafine structure, which have important applications for the treatment of wastewater including such heavy metals.https://www.mdpi.com/2077-0375/12/9/835kaolinceramic membrane (CM)chitosan-coated ceramic membrane (CCCM)ultrafine (UF) filtrationchromium(VI) removal |
| spellingShingle | Munkhpurev Bat-Amgalan Naoto Miyamoto Naoki Kano Ganchimeg Yunden Hee-Joon Kim Preparation and Characterization of Low-Cost Ceramic Membrane Coated with Chitosan: Application to the Ultrafine Filtration of Cr(VI) Membranes kaolin ceramic membrane (CM) chitosan-coated ceramic membrane (CCCM) ultrafine (UF) filtration chromium(VI) removal |
| title | Preparation and Characterization of Low-Cost Ceramic Membrane Coated with Chitosan: Application to the Ultrafine Filtration of Cr(VI) |
| title_full | Preparation and Characterization of Low-Cost Ceramic Membrane Coated with Chitosan: Application to the Ultrafine Filtration of Cr(VI) |
| title_fullStr | Preparation and Characterization of Low-Cost Ceramic Membrane Coated with Chitosan: Application to the Ultrafine Filtration of Cr(VI) |
| title_full_unstemmed | Preparation and Characterization of Low-Cost Ceramic Membrane Coated with Chitosan: Application to the Ultrafine Filtration of Cr(VI) |
| title_short | Preparation and Characterization of Low-Cost Ceramic Membrane Coated with Chitosan: Application to the Ultrafine Filtration of Cr(VI) |
| title_sort | preparation and characterization of low cost ceramic membrane coated with chitosan application to the ultrafine filtration of cr vi |
| topic | kaolin ceramic membrane (CM) chitosan-coated ceramic membrane (CCCM) ultrafine (UF) filtration chromium(VI) removal |
| url | https://www.mdpi.com/2077-0375/12/9/835 |
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