TY - JOUR
T1 - The fragmented 3D-covalent organic framework in cellulose acetate membrane for efficient phenol removal
AU - Mohammed, Abdul Khayum
AU - Ali, Jisha Kuttiani
AU - Kuzhimully, Mahira Bashri Selman
AU - Addicoat, Matthew A.
AU - Varghese, Sabu
AU - Baias, Maria
AU - Alhseinat, Emad
AU - Shetty, Dinesh
N1 - Publisher Copyright:
© 2023 The Author(s)
PY - 2023/6/15
Y1 - 2023/6/15
N2 - The membrane-based separation of molecular pollutants has several advantages such as minimum energy utilization, recyclability, and commercial viability. However, the membrane fabrications should be in line with the suitable porosity, functionality, mechanical strength, and economical for their practical applications. Herein, we report a novel hybrid membrane (TamDbta-CA) of low-cost cellulose acetate (CA) polymer and functionally diverse porous defective 3D-COF (TamDbta) for the removal of toxic phenol from industrially relevant synthetic oil-produced water. The low percentage (0.8%) use of TamDbta as pillars in CA-membranes improved the porosity, hydrophilicity, mechanical strength, and separation efficiency of phenol (∼80 to 90 %). The defective functional sites (–C=O and –Br) and nanoporosity of TamDbta and its uniform distribution throughout the mixed-matrix membrane contributed to the enhancement of membrane performance. The strategic membrane design and its efficient use for removing toxic pollutants may pave the way for using COFs as a pillar in commercially viable membranes.
AB - The membrane-based separation of molecular pollutants has several advantages such as minimum energy utilization, recyclability, and commercial viability. However, the membrane fabrications should be in line with the suitable porosity, functionality, mechanical strength, and economical for their practical applications. Herein, we report a novel hybrid membrane (TamDbta-CA) of low-cost cellulose acetate (CA) polymer and functionally diverse porous defective 3D-COF (TamDbta) for the removal of toxic phenol from industrially relevant synthetic oil-produced water. The low percentage (0.8%) use of TamDbta as pillars in CA-membranes improved the porosity, hydrophilicity, mechanical strength, and separation efficiency of phenol (∼80 to 90 %). The defective functional sites (–C=O and –Br) and nanoporosity of TamDbta and its uniform distribution throughout the mixed-matrix membrane contributed to the enhancement of membrane performance. The strategic membrane design and its efficient use for removing toxic pollutants may pave the way for using COFs as a pillar in commercially viable membranes.
KW - Covalent organic frameworks
KW - Functional porous materials
KW - Mixed-matrix membranes
KW - Phenol removal
KW - Toxic molecules
KW - Water purification
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U2 - 10.1016/j.cej.2023.143234
DO - 10.1016/j.cej.2023.143234
M3 - Article
AN - SCOPUS:85158844505
SN - 1385-8947
VL - 466
JO - Chemical Engineering Journal
JF - Chemical Engineering Journal
M1 - 143234
ER -