Utilization of Rice Husk, an Abundant and Inexpensive Biomass in Porous Ceramic Membrane Preparation: A Crucial Role of Firing Temperature. (5th August 2021)

• Record Type: Journal Article
• Authors: Dung, Tran Thi Ngoc; Nam, Vu Nang; Nhan, Tran Thi; Hoang, Bui Nguyen; Hung, Do Le Thanh; Quang, Dang Viet
• Other Names: Pham Thanh Dong Academic Editor.
• Is Part Of: Journal of nanomaterials. Volume 2021(2021)
• Publication Date: 2021-08-05
• Subjects: Nanostructured materials -- Periodicals; Nanotechnology -- Periodicals; Nanomatériaux; Nanostructured materials; Nanotechnology; Nanostructures; Nanotechnology; Periodicals; Fulltext; Internet Resources; Periodicals; 620.115
• DOI: 10.1155/2021/8688238
• Languages: English
• ISSNs: 1687-4110

Abstract

Abstract : The influence of firing temperature on characteristics and bacterial filtration of the porous ceramic membrane prepared from rice husk (20 wt%) and kaolin has been investigated. As firing temperatures increased from 900 to 1100°C, the compressive strength of membrane increased from 555.3 N/cm 2 to 2992.3 N/cm 2, whereas the porosity decreased from 49.4 to 30.2% due to structural condensation and mullite formation. The condensation caused pore contraction that finally improved bacterial removal efficiency from ~90% to 99%. The results suggested that the porous ceramic membrane prepared from rice husk and kaolin should be fired at ~1050°C to attain both strength and filtration efficiency.