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Almanassra IW, Jaber L, Backer SN, Chatla A, Kochkodan V, Al-Ansari T, Shanableh A, Atieh MA. Oxidized carbide-derived carbon as a novel filler for improved antifouling characteristics and permeate flux of hybrid polyethersulfone ultrafiltration membranes. CHEMOSPHERE 2023; 313:137425. [PMID: 36460158 DOI: 10.1016/j.chemosphere.2022.137425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 11/18/2022] [Accepted: 11/26/2022] [Indexed: 06/17/2023]
Abstract
Polyethersulfone (PES) is a widely used polymer for ultrafiltration (UF) membrane fabrication. In the current study, carbide-derived carbon (CDC) oxidized by acid treatment was utilized as a filler to fabricate a novel PES composites UF membranes. The successful oxidation of CDC was validated from presence of oxygen containing functional groups and improved oxygen content, from 5.08 at.% for CDC to 26.22 at.% for oxidized CDC (OCDC). The OCDC PES UF membranes were prepared at different loadings of OCDC between 0.5 and 3.0 wt%. The membrane porosity, pore size and surface free energy found to be improved while a noticeable reduction in water contact angle was observed with OCDC loading implying the improved hydrophilicity of PES membranes. Consequently, the pure water flux found to improve from 151.6 to 569.6 (L/(m2. h)) for the 3.0 wt% modified OCDC membrane (M-3) which is 3.8 folds of the bare PES membrane. The antifouling characteristics were evaluated by humic acid (HA) filtration. The results revealed a significant enhancement in HA rejection with OCDC loading, the highest rejection was 96.8% for M-3 membrane. Additionally, the adsorption capacity of OCDC modified membranes found to decrease with OCDC loading indicating improved rejection of HA from the membrane surface. Moreover, M-3 demonstrated the maximum flux recovery ratio (FRR) of 92.3%. Reusability of the fabricated membranes was evaluated by deionized water/humic acid cycling filtration. The FRR was higher than 86.7% over three cycles of pure water/HA filtration for 140 min, indicated the excellent stability and reusability of the membranes. Overall, the OCDC was an effective filler for enhancing the PES UF membranes antifouling and permeability properties.
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Affiliation(s)
- Ismail W Almanassra
- Research Institute of Sciences and Engineering (RISE), University of Sharjah, Sharjah, United Arab Emirates.
| | - Lubna Jaber
- Research Institute of Sciences and Engineering (RISE), University of Sharjah, Sharjah, United Arab Emirates; Department of Chemistry, College of Sciences, University of Sharjah, Sharjah, United Arab Emirates
| | | | - Anjaneyulu Chatla
- Research Institute of Sciences and Engineering (RISE), University of Sharjah, Sharjah, United Arab Emirates
| | - Viktor Kochkodan
- Qatar Environment and Energy Research Institute, Hamad Bin Khalifa University, Qatar Foundation, Doha, Qatar
| | - Tareq Al-Ansari
- College of Science and Engineering, Hamad Bin Khalifa University, Qatar Foundation, Doha, Qatar
| | - Abdallah Shanableh
- Research Institute of Sciences and Engineering (RISE), University of Sharjah, Sharjah, United Arab Emirates; Department of Civil and Environmental Engineering, College of Engineering, University of Sharjah, Sharjah, 27272, United Arab Emirates
| | - Muataz Ali Atieh
- Research Institute of Sciences and Engineering (RISE), University of Sharjah, Sharjah, United Arab Emirates; Chemical and Water Desalination Engineering Program, College of Engineering, University of Sharjah, Sharjah, United Arab Emirates.
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Lu Y, Miao M, Wong NH, Sunarso J, Li N. Structure regulation of PVDF/magnetic attapulgite composite membrane for separating water vapor from air. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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