Fabrication and optimization of a clay-bonded SiC flat tubular membrane support for microfiltration applications |
| |
| Affiliation: | 1. Korea University of Science & Technology, Daejeon 305-350, South Korea;2. Powder and Ceramics Division, Korea Institute of Materials Science, Changwon Gyeongnam 642-831, South Korea;1. Section of Chemistry, Aalborg University, DK-9000 Aalborg, Denmark;2. Dipartimento di Chimica, Universitá di Torino, 10125 Torino, Italy;3. Department of Physics and Nanotechnology, Aalborg University, DK-9220 Aalborg, Denmark;1. Functional Ceramics Laboratory, Department of Materials Science and Engineering, The University of Seoul, Seoul 02504, Republic of Korea;2. Powder and Ceramics Division, Korea Institute of Materials Science, 797 Changwondaero, Changwon, Gyeongnam 51508, Republic of Korea;1. Key Laboratory of Ministry of Education for Advanced Materials in Tropical Island Resources, Hainan University, Haikou 570228, China;2. College of Physics and Materials Science, Tianjin Normal University, Tianjin 300387, China;3. State Key Laboratory of New Ceramics & Fine Processing, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, China;1. REQUIMTE-LAQV, Department of Chemistry, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Campus de Caparica, 2829-516 Caparica, Portugal;2. Instituto de Biologia Experimental e Tecnológica, Apartado 12, 2781-901 Oeiras, Portugal;3. LiqTech International A/S, DK-2750, Ballerup, Denmark;4. Laboratorio de Fotoelectrones de Rayos X, SCAI, Universidad de Málaga, E-29071 Málaga, Spain;5. Departamento de Química Inorgánica, Facultad de Ciencias, Universidad de Málaga, E-29071 Málaga, Spain;6. Departamento de Física Aplicada I, Facultad de Ciencias, Universidad de Málaga, E-29071 Málaga, Spain |
| |
| Abstract: | SiC has excellent structural and mechanical properties and also has excellent properties related to membrane performance. High processing temperature increases the costs of SiC products and thus limits their use. In this study, we fabricated SiC-based ceramic support layers using a clay-bonding technique. Kaolin, a well-known clay, was used as a binder for silicon-carbide particles. Three different SiC powders were used on the basis of particle size for fabrication by the extrusion method, which converts powders into flat tubular form. The resultant supports are sintered at 1300–1500 °C in air and evaluated for their structural properties, pore characteristics and permeability. It is evident from the study that we can produce a support layer with small-sized SiC powder that has a high open porosity and high strength with a smaller pore size and lower permeability in comparison with layers produced with a large-sized starting SiC powder. Additionally, the produced support layer could be used as a stand-alone membrane for 1 µm particles. |
| |
| Keywords: | Clay bonding Silicon carbide Microfiltration Ceramic membrane support |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
