The Influence of Air Gap Length on the Characteristics and Performance of Hybrid Polyethersulfone/Cellulose Nanocrystal/Multiwalled Carbon Nanotubes Hollow Fiber Membrane for Humic Acid Removal. - C. Mahmud, Nor Azura; Saufi, Syed M.; Abu Seman, Mazrul Nizam; Takriff, Mohd Sobri; Ang, Wei Lun; Ab Latiff, Mohd Helmi (Asia-Pacific Journal of Chemical Engineering, 2025)