Utilization of Rice Husk, an Abundant and Inexpensive Biomass in Porous Ceramic Membrane Preparation: A Crucial Role of Firing Temperature | Zendy

Trần Thị Ngọc Dung | Zendy; Vu Nang Nam | Zendy; Tran Thi Nhan | Zendy; Bui Nguyen Hoang | Zendy; Do Le Thanh Hung | Zendy; Đặng Viết Quang | Zendy

Open Access

Utilization of Rice Husk, an Abundant and Inexpensive Biomass in Porous Ceramic Membrane Preparation: A Crucial Role of Firing Temperature

Author(s) -

Trần Thị Ngọc Dung,

Vu Nang Nam,

Tran Thi Nhan,

Bui Nguyen Hoang,

Do Le Thanh Hung,

Đặng Viết Quang

Publication year - 2021

Publication title -

journal of nanomaterials

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.463

H-Index - 66

eISSN - 1687-4129

pISSN - 1687-4110

DOI - 10.1155/2021/8688238

Subject(s) - husk , materials science , mullite , porosity , filtration (mathematics) , membrane , ceramic , composite material , ceramic membrane , chemical engineering , compressive strength , chemistry , botany , biochemistry , statistics , mathematics , engineering , biology

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/cm2 to 2992.3 N/cm2, 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.

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