Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/143844
Title: Pore-functionalized ceramic membrane with isotropically impregnated cobalt oxide for sulfamethoxazole degradation and membrane fouling elimination: Synergistic effect between catalytic oxidation and membrane separation
Authors: Bao, Yueping
Lee, Wen Jie
Lim, Teik-Thye
Wang, Rong
Hu, Xiao
Keywords: Engineering::Civil engineering
Issue Date: 2019
Source: Bao, Y., Lee, W. J., Lim, T.-T., Wang, R., & Hu, X. (2019). Pore-functionalized ceramic membrane with isotropically impregnated cobalt oxide for sulfamethoxazole degradation and membrane fouling elimination: Synergistic effect between catalytic oxidation and membrane separation. Applied Catalysis B: Environmental, 254, 37–46. doi:10.1016/j.apcatb.2019.04.081
Journal: Applied Catalysis B: Environmental
Abstract: In this study, a pore-functionalized ceramic membrane with isotropically impregnated cobalt oxide (CoCM) was prepared via an in-situ self-sacrificed template method and applied for sulfamethoxazole (SMX) degradation by peroxymonosulfate (PMS) activation under a dead-end membrane filtration mode. The physical and chemical properties of the membranes were characterized via FESEM, AFM, XRD and XPS. Results indicated that Co3O4 had been impregnated into the macropores uniformly throughout the whole ceramic membrane without pore blocking. The formation of Cosingle bondOsingle bondAl bonding inhibited the leaching of cobalt during the filtration while the hydroxyl group Co−OH played a crucial role during the radical generation. The contact angle of CoCM decreased, resulting in a higher pure water permeability as compared to the original ceramic membrane. The catalytic degradation of SMX showed that its removal efficiency could be influenced by both contact time and PMS dosage. CoCM exhibited superior antifouling property during the humic acid (HA) removal study. The stability and regeneration of CoCM were investigated. Furthermore, the radical quenching experiment was conducted and the concentration of sulfate radical was quantitatively estimated. Finally, the PMS activation as well as organics removal mechanism in CoCM via the synergistic coupling of catalytic Co3O4 and membrane separation were proposed.
URI: https://hdl.handle.net/10356/143844
ISSN: 0926-3373
DOI: 10.1016/j.apcatb.2019.04.081
Rights: © 2019 Elsevier B.V. All rights reserved. This paper was published in Applied Catalysis B: Environmental and is made available with permission of Elsevier B.V.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:IGS Journal Articles

WEB OF SCIENCETM
Citations

11
checked on Oct 20, 2020

Page view(s)

24
checked on Oct 23, 2020

Download(s)

2
checked on Oct 23, 2020

Google ScholarTM

Check

Altmetric


Plumx

Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.