Waste environmental sources of metakaolin and corn cob ash for preparation and characterisation of green ceramic hollow fibre membrane (h-MCa) for oil-water separation

Design and fabrication of ceramic hollow fiber membrane derived from waste ash using phase inversion-based extrusion/sintering technique for water filtration

“…Such a loosely packed sponge-like structure is commonly found in the CHFM derived from waste ash due to large particle sizes [11,33]. Generally, the waste ash can exhibit the particle sizes of larger than 10 µm, whereas the sizes of pure metal oxide particles are much ner (usually about 1 µm) [5,18,34,35]. The particle size distribution curve in Fig.…”

Recent Advances in Biomass-Based Materials for Oil Spill Cleanup

“…When the wettability behavior occurs on a rough solid surface, the Wenzel model, the Cassie model, and the Wenzel and Cassie transient model are usually applied for determining the contact angle. When the liquid fully contacts with the rough surface and without any gap in the interface, the contact angle ( ) calculates by using the following equation according to the Wenzel model [ 22 ] ( Figure 2 c): where the roughness factor (R) is the ratio of the actual rough surface area to the geometrically projected area. Since the real area of rough surface is always larger than the projected area ( R > 1), the contact angle on a rough surface is typically larger than that on a smooth surface.…”

“…Akpomie et al studied the effect on oil sorption performance of rice husk montmorillonite combo with different thermal treatment, and found that the sorption capacity increased from 5.8 (untreated) to 9.7 (treated) g g [ 171 ]. Kamarudin et al prepared green ceramic hollow fiber membrane by using corn cob ash waste and metakaolin for oil-water separation [ 22 ].…”

Design and characterization of ceramic hollow fiber membrane derived from waste ash using phase inversion-based extrusion/sintering technique for water filtration

“…Such a loosely packed sponge-like structure is commonly found in the CHFM derived from waste ash due to large particle sizes [11,33]. Generally, the waste ash can exhibit particle sizes of larger than 10 μm, whereas the sizes of pure metal oxide particles are much finer (usually about 1 μm) [5,18,34,35]. The particle size distribution curve in Figure 3 shows that the majority of the POFA particles exhibited sizes ranging from 2.8 μm to 25.8 μm with a mean size of 8.0 μm.…”