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Amiri S, Vatanpour V, He T. Antifouling thin-film nanocomposite NF membrane with polyvinyl alcohol-sodium alginate-graphene oxide nanocomposite hydrogel coated layer for As(III) removal. CHEMOSPHERE 2023; 322:138159. [PMID: 36812992 DOI: 10.1016/j.chemosphere.2023.138159] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 02/10/2023] [Accepted: 02/13/2023] [Indexed: 06/18/2023]
Abstract
Removal of As(III) from the polluted waters is a challenge. It should be oxidized to As(V) for increasing its rejection by RO membranes. However, in this research, As (III) is directly removed by a high permeable and antifouling membrane prepared through the surface coating and in-situ crosslinking procedure of polyvinyl alcohol (PVA) and sodium alginate (SA) as coating materials containing graphene oxide as a hydrophilic additive on a polysulfone support with glutaraldehyde (GA) chemical crosslinking agent. The properties of the prepared membranes were evaluated through contact angle, zeta potential, ATR-FTIR, SEM, and AFM. The addition of GO in the polymeric networks of SA and PVA hydrogel coating layers led to a better hydrophilicity and a smoother surface and a higher negative surface charge resulted in improvment of permeability and rejection of membranes. Among the prepared hydrogel-coated modified membranes, SA-GO/PSf indicated the highest pure water permeability (15.8 L m-2 h-1 bar-1) and BSA permeability (9.57 L m-2 h-1 bar-1), respectively. The best desalination performance (NaCl, MgSO4, and Na2SO4 rejections of 60.0%, 74.5%, and 92.0%, respectively) and As(III) removal (88.4%) along with satisfactory stability and reusability in cyclic continuous filtration was reported for PVA-SA-GO membrane. In addition, the PVA-SA-GO membrane indicated improved fouling resistance toward BSA foulant with the lowest flux decline of 7%.
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Affiliation(s)
- Saba Amiri
- Department of Applied Chemistry, Faculty of Chemistry, Kharazmi University, 15719-14911, Tehran, Iran
| | - Vahid Vatanpour
- Department of Applied Chemistry, Faculty of Chemistry, Kharazmi University, 15719-14911, Tehran, Iran; National Research Center on Membrane Technologies, Istanbul Technical University, Maslak, 34469, Istanbul, Turkey.
| | - Tao He
- Laboratory for Membrane Materials and Separation Technologies, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201210, China
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2
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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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3
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Geleta TA, Maggay IV, Chang Y, Venault A. Recent Advances on the Fabrication of Antifouling Phase-Inversion Membranes by Physical Blending Modification Method. MEMBRANES 2023; 13:membranes13010058. [PMID: 36676865 PMCID: PMC9864519 DOI: 10.3390/membranes13010058] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 12/16/2022] [Accepted: 12/19/2022] [Indexed: 05/31/2023]
Abstract
Membrane technology is an essential tool for water treatment and biomedical applications. Despite their extensive use in these fields, polymeric-based membranes still face several challenges, including instability, low mechanical strength, and propensity to fouling. The latter point has attracted the attention of numerous teams worldwide developing antifouling materials for membranes and interfaces. A convenient method to prepare antifouling membranes is via physical blending (or simply blending), which is a one-step method that consists of mixing the main matrix polymer and the antifouling material prior to casting and film formation by a phase inversion process. This review focuses on the recent development (past 10 years) of antifouling membranes via this method and uses different phase-inversion processes including liquid-induced phase separation, vapor induced phase separation, and thermally induced phase separation. Antifouling materials used in these recent studies including polymers, metals, ceramics, and carbon-based and porous nanomaterials are also surveyed. Furthermore, the assessment of antifouling properties and performances are extensively summarized. Finally, we conclude this review with a list of technical and scientific challenges that still need to be overcome to improve the functional properties and widen the range of applications of antifouling membranes prepared by blending modification.
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4
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Agboola O, Khalih AA, Oladokun O, Ayeni AO, Chukwudubem FU, Odunlami O, Elehinafe F, Yahaya A, Fayomi OSI. Statistical Analyses of Pore Radii on the Performance of PET-Nanocomposite Membranes in the Removal of Iron and Anions from Ibeshe River. SOUTH AFRICAN JOURNAL OF CHEMICAL ENGINEERING 2023. [DOI: 10.1016/j.sajce.2023.01.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
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5
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Eskhan A, Johnson D. Microscale characterization of abiotic surfaces and prediction of their biofouling/anti-biofouling potential using the AFM colloidal probe technique. Adv Colloid Interface Sci 2022; 310:102796. [DOI: 10.1016/j.cis.2022.102796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 10/11/2022] [Accepted: 10/14/2022] [Indexed: 11/16/2022]
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Jaber L, Almanassra IW, Backer SN, Kochkodan V, Shanableh A, Atieh MA. A Comparative Analysis of the Effect of Carbonaceous Nanoparticles on the Physicochemical Properties of Hybrid Polyethersulfone Ultrafiltration Membranes. MEMBRANES 2022; 12:1143. [PMID: 36422135 PMCID: PMC9695429 DOI: 10.3390/membranes12111143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 10/28/2022] [Accepted: 11/09/2022] [Indexed: 06/16/2023]
Abstract
Numerous studies have been previously reported on the use of nanoscale carbonaceous fillers, such as multi-walled carbon nanotubes (MWCNTs) and graphene oxide (GO), in polymeric ultrafiltration (UF) membranes; however, no insight has been clearly reported on which material provides the best enhancements in membrane performance. In this study, a comparative analysis was carried out to establish a comprehensible understanding of the physicochemical properties of hybrid polyethersulfone (PES) UF membranes incorporated with MWCNTs and GO nanoparticles at various concentrations. The hybrid membranes were prepared via the non-solvent-induced phase separation process and further characterized by field emission scanning electron microscopy and atomic force microscope (AFM). The AFM images showed homogeneous membrane surfaces with a reduction in the membrane surface roughness from 2.62 nm for bare PES to 2.39 nm for PES/MWCNTs and to 1.68 nm for PES/GO membranes due to improved hydrophilicity of the membranes. Physicochemical properties of the hybrid PES membranes were assessed, and the outcomes showed an enhancement in the porosity, pore size, water contact angle, and water permeability with respect to nanoparticle concentration. GO-incorporated PES membranes exhibited the highest porosity, pore size, and lowest contact angle as compared to PES/MWCNTs, indicating the homogeneous distribution of nanoparticles within the membrane structure. PES/MWCNTs (0.5 wt.%) and PES/GO (1.0 wt.%) hybrid membranes exhibited the highest water flux of 450.0 and 554.8 L m-2 h-1, respectively, at an applied operating pressure of 1 bar. The filtration and antifouling performance of the PES hybrid membranes were evaluated using 50 mg L-1 of humic acid (HA) as a foulant at pH = 7. Compared to the bare PES membrane, the MWCNTs and GO-incorporated PES hybrid membranes exhibited enhanced permeability and HA removal. Moreover, PES/MWCNTs (0.5 wt.%) and PES/GO (1 wt.%) hybrid membranes reported HA rejection of 90.8% and 94.8%, respectively. The abundant oxygen-containing functional groups in GO-incorporated PES membranes resulted in more hydrophilic membranes, leading to enhanced permeability and fouling resistance. The antifouling properties and flux recovery ratio were improved by the addition of both nanoparticles. Given these findings, although both MWCNTs and GO nanoparticles are seen to notably improve the membrane performance, PES membranes with 1 wt.% GO loading provided the highest removal of natural organic matter, such as HA, under the same experimental conditions.
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Affiliation(s)
- Lubna Jaber
- Research Institute of Sciences & Engineering (RISE), University of Sharjah, Sharjah P.O. Box 27272, United Arab Emirates
- Department of Chemistry, College of Sciences, University of Sharjah, Sharjah P.O. Box 27272, United Arab Emirates
| | - Ismail W. Almanassra
- Research Institute of Sciences & Engineering (RISE), University of Sharjah, Sharjah P.O. Box 27272, United Arab Emirates
| | - Sumina Namboorimadathil Backer
- Research Institute of Sciences & Engineering (RISE), University of Sharjah, Sharjah P.O. Box 27272, United Arab Emirates
| | - Viktor Kochkodan
- Qatar Environment and Energy Research Institute, Hamad Bin Khalifa University, Qatar Foundation, Doha P.O. Box 5825, Qatar
| | - Abdallah Shanableh
- Research Institute of Sciences & Engineering (RISE), University of Sharjah, Sharjah P.O. Box 27272, United Arab Emirates
- Department of Civil and Environmental Engineering, College of Engineering, University of Sharjah, Sharjah P.O. Box 27272, United Arab Emirates
| | - Muataz Ali Atieh
- Research Institute of Sciences & Engineering (RISE), University of Sharjah, Sharjah P.O. Box 27272, United Arab Emirates
- Chemical and Water Desalination Engineering Program (CWDE), College of Engineering, University of Sharjah, Sharjah P.O. Box 27272, United Arab Emirates
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7
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Kumar S, Sharma R, Gupta A, Dubey KK, Khan AM, Singhal R, Kumar R, Bharti A, Singh P, Kant R, Kumar V. TiO 2 based Photocatalysis membranes: An efficient strategy for pharmaceutical mineralization. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 845:157221. [PMID: 35809739 DOI: 10.1016/j.scitotenv.2022.157221] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 06/15/2022] [Accepted: 07/04/2022] [Indexed: 06/15/2023]
Abstract
Among the various emerging contaminants, pharmaceuticals (PhACs) seem to have adverse effects on the quality of water. Even the smallest concentration of PhACs in ground water and drinking water is harmful to humans and aquatic species. Among all the deaths reported due to COVID-19, the mortality rate was higher for those patients who consumed antibiotics. Consequently, PhAC in water is a serious concern and their removal needs immediate attention. This study has focused on the PhACs' degradation by collaborating photocatalysis with membrane filtration. TiO2-based photocatalytic membrane is an innovative strategy which demonstrates mineralization of PhACs as a safer option. To highlight the same, an emphasis on the preparation and reinforcing properties of TiO2-based nanomembranes has been elaborated in this review. Further, mineralization of antibiotics or cytostatic compounds and their degradation mechanisms is also highlighted using TiO2 assisted membrane photocatalysis. Experimental reactor configurations have been discussed for commercial implementation of photoreactors for PhAC degradation anchored photocatalytic nanomembranes. Challenges and future perspectives are emphasized in order to design a nanomembrane based prototype in future for wastewater management.
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Affiliation(s)
- Sanjeev Kumar
- Department of Chemistry, University of Delhi, Delhi, India; Department of Chemistry, Kirori Mal College, University of Delhi, India
| | - Ritika Sharma
- Department of Biochemistry, University of Delhi, Delhi, India
| | - Akanksha Gupta
- Department of Chemistry, Sri Venkateswara College, University of Delhi, India.
| | | | - A M Khan
- Department of Chemistry, Motilal Nehru College, India
| | - Rahul Singhal
- Department of Chemistry, Shivaji College, Delhi, India
| | - Ravinder Kumar
- Department of Chemistry, Gurukula Kangri (Deemed to be University), Haridwar, Uttarakhand, India
| | - Akhilesh Bharti
- Department of Chemistry, Kirori Mal College, University of Delhi, India
| | - Prashant Singh
- Department of Chemistry, Atma Ram Sanatan Dharma College, Delhi, India
| | - Ravi Kant
- Department of Chemistry, Zakir Hussain Delhi College, Delhi, India
| | - Vinod Kumar
- Special Centre for Nano Sciences, Jawaharlal Nehru University, Delhi, India.
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8
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An Update on the Effects of Vitamin D on the Immune System and Autoimmune Diseases. Int J Mol Sci 2022; 23:ijms23179784. [PMID: 36077185 PMCID: PMC9456003 DOI: 10.3390/ijms23179784] [Citation(s) in RCA: 57] [Impact Index Per Article: 28.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2022] [Revised: 08/24/2022] [Accepted: 08/26/2022] [Indexed: 12/16/2022] Open
Abstract
Vitamin D intervenes in calcium and phosphate metabolism and bone homeostasis. Experimental studies have shown that 1,25-dihydroxyvitamin D (calcitriol) generates immunologic activities on the innate and adaptive immune system and endothelial membrane stability. Low levels of serum 25-hydroxyvitamin D (25(OH)D) are associated with an increased risk of developing immune-related diseases such as psoriasis, type 1 diabetes, multiple sclerosis, and autoimmune diseases. Various clinical trials describe the efficacy of supplementation of vitamin D and its metabolites for treating these diseases that result in variable outcomes. Different disease outcomes are observed in treatment with vitamin D as high inter-individual difference is present with complex gene expression in human peripheral blood mononuclear cells. However, it is still not fully known what level of serum 25(OH)D is needed. The current recommendation is to increase vitamin D intake and have enough sunlight exposure to have serum 25(OH)D at a level of 30 ng/mL (75 nmol/L) and better at 40–60 ng/mL (100–150 nmol/L) to obtain the optimal health benefits of vitamin D.
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9
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Falak S, Shin BK, Huh DS. Antibacterial Activity of Polyaniline Coated in the Patterned Film Depending on the Surface Morphology and Acidic Dopant. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:1085. [PMID: 35407202 PMCID: PMC9000663 DOI: 10.3390/nano12071085] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 03/21/2022] [Accepted: 03/23/2022] [Indexed: 12/13/2022]
Abstract
We have fabricated poly(ε-caprolactone) (PCL) films with flat and honeycomb-patterned (HCP) structures to coat polyaniline (PANI) on the film surface. In addition, the effect of chemical modification of PANI by sulfuric acid (H2SO4) was also studied for antibacterial activity. The flat and HCP PCL films were obtained by simple evaporation of the solvent and via the breath figure (BF) method, respectively. The morphology and chemical composition of PANI coated on the film surface were evaluated by scanning electron microscopy (SEM) and X-ray spectroscopy (EDX). Fourier transform infrared spectroscopy (FT-IR) and thermogravimetric analyses (TGA) were obtained to identify the PANI coating. The wettability and conductivity of the films were also measured. Applicational aspects were evaluated by assessing antibacterial and antibiofilm activity against Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus). The EDX, TGA, and FT-IR findings indicated chemical modification of PCL film by PANI and H2SO4. The conductivity of the films was increased by the coating of PANI to the patterned surface and additionally increased by the chemically modified PANI. The antibacterial activity was 69.79%, 78.27%, and 88% against E. coli, and 32.73%, 62.65%, and 87.97% against S. aureus, for flat PANI, HCP PANI, and H2SO4-treated HCP films, respectively. Likewise, the PANI coated flat, HCP, and H2SO4-treated HCP films inhibited E. coli biofilm formation by around 41.62%, 63%, and 83.88% and S. aureus biofilm formation by 17.81%, 69.83%, and 96.57%, respectively. The antibacterial activity of the HCP film was higher than that of flat PANI films, probably due to the higher coating of PANI on the HCP surface. Moreover, sulfonation of the HCP film with H2SO4 might have improved the wettability, thereby enhancing the antibacterial and antibiofilm properties. Our results showed that topographical changes, as well as doping, offer simple and cost-effective ways to modify the structural and functional properties of films.
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Affiliation(s)
| | | | - Do Sung Huh
- Department of Chemistry, Nano Science and Engineering, Center of Nano Manufacturing, Inje University, Gimhae-si 50834, Korea; (S.F.); (B.K.S.)
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Zhang B, Wang W, Zhu L, Li N, Chen X, Tian J, Zhang X. Simultaneously enhanced permeability and anti-fouling performance of polyethersulfone ultrafiltration membranes by structural control and mixed carbon quantum dots. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2021.119931] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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11
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Wang W, Shi YP, Zhang P, Zhang ZC, Xu X. Fabrication of an antifouling
GO‐TiO
2
/
PES
ultrafiltration membrane. J Appl Polym Sci 2021. [DOI: 10.1002/app.51165] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Wei Wang
- State Key Laboratory of Separation Membranes and Membrane Processes/National Center for International Joint Research on Separation Membranes Tiangong University Tianjin China
- School of Material Science and Engineering Tiangong University Tianjin China
| | - Ya Ping Shi
- State Key Laboratory of Separation Membranes and Membrane Processes/National Center for International Joint Research on Separation Membranes Tiangong University Tianjin China
- School of Material Science and Engineering Tiangong University Tianjin China
| | - Peng Zhang
- State Key Laboratory of Separation Membranes and Membrane Processes/National Center for International Joint Research on Separation Membranes Tiangong University Tianjin China
- School of Material Science and Engineering Tiangong University Tianjin China
| | - Zhi Chao Zhang
- State Key Laboratory of Separation Membranes and Membrane Processes/National Center for International Joint Research on Separation Membranes Tiangong University Tianjin China
- School of Material Science and Engineering Tiangong University Tianjin China
| | - Xin Xu
- State Key Laboratory of Separation Membranes and Membrane Processes/National Center for International Joint Research on Separation Membranes Tiangong University Tianjin China
- School of Material Science and Engineering Tiangong University Tianjin China
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12
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Xu J, Wang F, Wang C, Zhang Q, He Y. Synergistic effect of oxidized low-dimensional carbon nanomaterials on the properties of polysulfone composite membrane. JOURNAL OF POLYMER ENGINEERING 2021. [DOI: 10.1515/polyeng-2021-0014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Using the immersion phase inversion process, polysulfone (PSF), grapheme oxide (GO) and modified carbon nanotubes (MCNTs) were dissolved in 1-methyl-2-pyrrolidone (NMP) to prepare nanocomposite membranes. The GO-MCNTs blended PSF membranes were characterized by several analytical methods, such as morphology analysis, group characteristic peak test, hydrophilic measurement and permeation tests, and the synergistic effect of GO and MCNTs on the membrane performance was investigated. Microscope images depict two-layer structure of the composite membrane, in which, the lower layer is finger like porous layer, and the upper layer is a thinner separation layer. M-CNTs have great influence on formation of the upper separation layer, while the hydrophilic nature of GO results in the formation of the lower supporting layer, which changes from finger shaped hole to honeycomb pore. The change of membrane structure not only improves the surface hydrophilicity, but also promotes the membrane performance. In particular, the composite membrane (m
GO:MCNTs = 2:1) exhibits a much smaller contact angle (48.01°), a high permeation flux (33.25 L/m2·h) and superior rejection rate (95.2%). Furthermore, the fine compaction performance of composite membrane also provides great potential application prospects in water treatment.
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Affiliation(s)
- Jin Xu
- College of Electromechanical Engineering , Shandong Engineering Laboratory for Preparation and Application of High-performance Carbon Materials, Qingdao University of Science and Technology , Qingdao , 266061 , China
| | - Fei Wang
- College of Electromechanical Engineering , Shandong Engineering Laboratory for Preparation and Application of High-performance Carbon Materials, Qingdao University of Science and Technology , Qingdao , 266061 , China
| | - Chunting Wang
- College of Electromechanical Engineering , Shandong Engineering Laboratory for Preparation and Application of High-performance Carbon Materials, Qingdao University of Science and Technology , Qingdao , 266061 , China
| | - Qi Zhang
- College of Electromechanical Engineering , Shandong Engineering Laboratory for Preparation and Application of High-performance Carbon Materials, Qingdao University of Science and Technology , Qingdao , 266061 , China
| | - Yan He
- College of Electromechanical Engineering , Shandong Engineering Laboratory for Preparation and Application of High-performance Carbon Materials, Qingdao University of Science and Technology , Qingdao , 266061 , China
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13
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Nanofiltration Composite Membranes Based on KIT-6 and Functionalized KIT-6 Nanoparticles in a Polymeric Matrix with Enhanced Performances. MEMBRANES 2021; 11:membranes11050300. [PMID: 33918993 PMCID: PMC8143004 DOI: 10.3390/membranes11050300] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 04/14/2021] [Accepted: 04/17/2021] [Indexed: 01/04/2023]
Abstract
The nanofiltration composite membranes were obtained by incorporation of KIT-6 ordered mesoporous silica, before and after its functionalization with amine groups, into polyphenylene-ether-ether-sulfone (PPEES) matrix. The incorporation of silica nanoparticles into PPEES polymer matrix was evidenced by FTIR and UV–VIS spectroscopy. SEM images of the membranes cross-section and their surface topology, evidenced by AFM, showed a low effect of KIT-6 silica nanoparticles loading and functionalization. The performances of the obtained membranes were appraised in permeation of Chaenomeles japonica fruit extracts and the selective separation of phenolic acids and flavonoids. The obtained results proved that the PPEES with functionalized KIT-6 nanofiltration membrane, we have prepared, is suitable for the polyphenolic compound’s concentration from the natural extracts.
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14
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Fabrication of novel polyethersulfone (PES) hybrid ultrafiltration membranes with superior permeability and antifouling properties using environmentally friendly sulfonated functionalized polydopamine nanofillers. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.118311] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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15
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Rong H, He L, Li M, Zhang M, Yi K, Han P, Tong M. Different electrically charged proteins result in diverse transport behaviors of plastic particles with different surface charge in quartz sand. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 756:143837. [PMID: 33257066 DOI: 10.1016/j.scitotenv.2020.143837] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Revised: 11/01/2020] [Accepted: 11/03/2020] [Indexed: 06/12/2023]
Abstract
The influence of proteins on the transport and deposition behaviors of microplastics (MPs) in quartz sand was examined at both low (5 mM) and high ionic strength (25 mM) in NaCl solutions at pH 6. Carboxylate- and amine-modified polystyrene latex microspheres with size of 200 nm were employed as negatively (CMPs) and positively surface charged MPs (AMPs), respectively, while bovine serum albumin (BSA) and bovine trypsin were utilized as representative negatively and positively charged proteins, respectively. The results showed that for two examined protein concentrations (both 1 and 10 mg/L TOC) under both ionic strength conditions, the presence of BSA increased the transport of both CMPs and AMPs, while the presence of trypsin decreased the transport of CMPs yet increased the transport of AMPs in porous media. The mechanisms driving to the changed transport of MPs induced by two types of proteins were found to be different. Particularly, steric interaction induced by BSA corona adsorbed onto CMPs surface as well as the repel effects resulted from BSA suspending in solutions were found to contribute to the enhanced CMPs transport with BSA copresent in suspensions. The increased sizes and the decreased electrostatic repulsion of CMPs due to the adsorption of trypsin onto CMPs, together with the addition of extra deposition sites due to the adsorption of trypsin onto quartz sand drove to the decreased CMPs transport with trypsin copresent in suspensions. The increased electrostatic repulsion due to the adsorption of BSA onto AMPs surfaces caused the enhanced AMPs transport with BSA in solutions. While, the decreased electrostatic attraction of AMPs due to the adsorption of trypsin onto AMPs, as well as the competition of deposition sites due to the adsorption of trypsin onto quartz sand contributed to the increased AMPs transport with trypsin copresent in suspensions. The results showed that the presence of different types of proteins would induce different transport behaviors of microplastics with different surface charge in porous media. Since proteins are widely present in aquatic systems, to more accurately predict the fate and transport of MPs in natural environments, the effects and mechanisms of proteins on the transport of MPs should be considered.
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Affiliation(s)
- Haifeng Rong
- The Key Laboratory of Water and Sediment Sciences, Ministry of Education, State Environmental Protection Key Laboratory of All Material Fluxes in River Ecosystems, International Joint Laboratory for Regional Pollution Control, Ministry of Education, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, PR China
| | - Lei He
- The Key Laboratory of Water and Sediment Sciences, Ministry of Education, State Environmental Protection Key Laboratory of All Material Fluxes in River Ecosystems, International Joint Laboratory for Regional Pollution Control, Ministry of Education, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, PR China
| | - Meng Li
- The Key Laboratory of Water and Sediment Sciences, Ministry of Education, State Environmental Protection Key Laboratory of All Material Fluxes in River Ecosystems, International Joint Laboratory for Regional Pollution Control, Ministry of Education, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, PR China
| | - Mengya Zhang
- The Key Laboratory of Water and Sediment Sciences, Ministry of Education, State Environmental Protection Key Laboratory of All Material Fluxes in River Ecosystems, International Joint Laboratory for Regional Pollution Control, Ministry of Education, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, PR China
| | - Kexin Yi
- The Key Laboratory of Water and Sediment Sciences, Ministry of Education, State Environmental Protection Key Laboratory of All Material Fluxes in River Ecosystems, International Joint Laboratory for Regional Pollution Control, Ministry of Education, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, PR China
| | - Peng Han
- The Key Laboratory of Water and Sediment Sciences, Ministry of Education, State Environmental Protection Key Laboratory of All Material Fluxes in River Ecosystems, International Joint Laboratory for Regional Pollution Control, Ministry of Education, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, PR China
| | - Meiping Tong
- The Key Laboratory of Water and Sediment Sciences, Ministry of Education, State Environmental Protection Key Laboratory of All Material Fluxes in River Ecosystems, International Joint Laboratory for Regional Pollution Control, Ministry of Education, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, PR China.
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Sulfonated carbon nano-onion incorporated polyethersulfone nanocomposite ultrafiltration membranes with improved permeability and antifouling property. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2020.117825] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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17
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Liao Z, Nguyen MN, Wan G, Xie J, Ni L, Qi J, Li J, Schäfer AI. Low pressure operated ultrafiltration membrane with integration of hollow mesoporous carbon nanospheres for effective removal of micropollutants. JOURNAL OF HAZARDOUS MATERIALS 2020; 397:122779. [PMID: 32387831 DOI: 10.1016/j.jhazmat.2020.122779] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Revised: 03/25/2020] [Accepted: 04/17/2020] [Indexed: 06/11/2023]
Abstract
An effective way to remove micropollutants is desirable for water purification. In this work, a dual-functional ultrafiltration (DFUF) membrane was fabricated by loading hollow mesoporous carbon nanospheres (HMCNs) into the finger-like support layer pores of the polymeric ultrafiltration (UF) membrane. The designed DFUF membrane combines the high selectivity of ultrafiltration that removes macromolecules based on size exclusion mechanism, and excellent adsorption capacity of HMCNs towards micropollutants in water. When tetracycline (TCN) and 17β-Estradiol (E2) were selected as model micropollutants, corresponding 97 % and 94 % removal were achieved at a low pressure less than 0.15 bar and a flux of 50 and 64 L h-1 m-2 (estimated residence time less than 6 s), respectively. Moreover, simultaneous removal of multiple pollutants was demonstrated by filtering a mixture containing TCN and polyethylene glycols (PEG) 600 kDa macromolecules. Over a long filtration period (more than 60 h) that produced 3180 L/m2 of permeate, the TCN concentration reduced from 100 μg/L in the feed to less than 10 μg/L in the permeate. The above results indicate that the DFUF membrane is capable of removing the small molecular and macromolecular pollutants simultaneously at low pressure, and hence offers remarkable potential in water treatment applications.
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Affiliation(s)
- Zhipeng Liao
- Key Laboratory of New Membrane Materials, Ministry of Industry and Information Technology, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Minh Nhat Nguyen
- Membrane Technology Department, Institute of Functional Interfaces (IFG-MT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Gaojie Wan
- Key Laboratory of New Membrane Materials, Ministry of Industry and Information Technology, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Jia Xie
- Key Laboratory of New Membrane Materials, Ministry of Industry and Information Technology, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Linhan Ni
- Key Laboratory of New Membrane Materials, Ministry of Industry and Information Technology, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Junwen Qi
- Key Laboratory of New Membrane Materials, Ministry of Industry and Information Technology, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Jiansheng Li
- Key Laboratory of New Membrane Materials, Ministry of Industry and Information Technology, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.
| | - Andrea Iris Schäfer
- Membrane Technology Department, Institute of Functional Interfaces (IFG-MT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
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18
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Lukka Thuyavan Y, Arthanareeswaran G, Ismail AF, Goh PS, Shankar MV, Ng BC, Sathish Kumar R, Venkatesh K. Binary metal oxides incorporated polyethersulfone ultrafiltration mixed matrix membranes for the pretreatment of seawater desalination. J Appl Polym Sci 2020. [DOI: 10.1002/app.49883] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Y. Lukka Thuyavan
- Membrane Research Laboratory, Department of Chemical Engineering National Institute of Technology Tiruchirappalli Tamil Nadu India
- Advanced Membrane Technology Research Centre (AMTEC), Universiti Teknologi Malaysia Skudai Malaysia
| | - G. Arthanareeswaran
- Membrane Research Laboratory, Department of Chemical Engineering National Institute of Technology Tiruchirappalli Tamil Nadu India
| | - A. F. Ismail
- Advanced Membrane Technology Research Centre (AMTEC), Universiti Teknologi Malaysia Skudai Malaysia
| | - P. S. Goh
- Advanced Membrane Technology Research Centre (AMTEC), Universiti Teknologi Malaysia Skudai Malaysia
| | - M. V. Shankar
- Nanocatalysis and Solar Fuels Research Laboratory, Department of Materials Science and Nanotechnology Yogi Vemana University Kadapa Andhra Pradesh India
| | - B. C. Ng
- Advanced Membrane Technology Research Centre (AMTEC), Universiti Teknologi Malaysia Skudai Malaysia
| | - R. Sathish Kumar
- Membrane Research Laboratory, Department of Chemical Engineering National Institute of Technology Tiruchirappalli Tamil Nadu India
| | - K. Venkatesh
- Membrane Research Laboratory, Department of Chemical Engineering National Institute of Technology Tiruchirappalli Tamil Nadu India
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19
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Oral delivery of insulin with intelligent glucose-responsive switch for blood glucose regulation. J Nanobiotechnology 2020; 18:96. [PMID: 32664978 PMCID: PMC7362448 DOI: 10.1186/s12951-020-00652-z] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Accepted: 07/07/2020] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND The traditional treatment for diabetes usually requires frequent insulin injections to maintain normoglycemia, which is painful and difficult to achieve blood glucose control. RESULTS To solve these problems, a non-invasive and painless oral delivery nanoparticle system with bioadhesive ability was developed by amphipathic 2-nitroimidazole-L-cysteine-alginate (NI-CYS-ALG) conjugates. Moreover, in order to enhance blood glucose regulation, an intelligent glucose-responsive switch in this nanoparticle system was achieved by loading with insulin and glucose oxidase (GOx) which could supply a stimulus-sensitive turnover strategy. In vitro tests illustrated that the insulin release behavior was switched "ON" in response to hyperglycemic state by GOx catalysis and "OFF" by normal glucose levels. Moreover, in vivo tests on type I diabetic rats, this system displayed a significant hypoglycemic effect, avoiding hyperglycemia and maintaining a normal range for up to 14 h after oral administration. CONCLUSION The stimulus-sensitive turnover strategy with bioadhesive oral delivery mode indicates a potential for the development of synthetic GR-NPs for diabetes therapy, which may provide a rational design of proteins, low molecular drugs, as well as nucleic acids, for intelligent releasing via the oral route.
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20
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Effect of BSA and sodium alginate adsorption on decline of filtrate flux through polyethylene microfiltration membranes. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2019.117469] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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21
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Yin W, Li X, Suwarno SR, Cornelissen ER, Chong TH. Fouling behavior of isolated dissolved organic fractions from seawater in reverse osmosis (RO) desalination process. WATER RESEARCH 2019; 159:385-396. [PMID: 31121406 DOI: 10.1016/j.watres.2019.05.038] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Revised: 04/11/2019] [Accepted: 05/11/2019] [Indexed: 06/09/2023]
Abstract
Organic fouling is still elusive in seawater reverse osmosis (SWRO) desalination process. Classifying organics in seawater will provide an in-depth understanding of the important fraction on RO fouling. In this study, dissolved organic matter (DOM) in seawater was fractionated and concentrated by membrane technique into three major fractions (i.e., biopolymer fraction, humic substance with building block fraction, and low molecular weight fraction) by their molecular weight (MW) according to the definitions in liquid chromatography with organic carbon detection (LC-OCD) method. Overall recovery of >80% was attained. The isolated organic fractions were compared with common model foulants such as sodium alginate (SA), bovine serum albumin (BSA), and humic acid (HA), in terms of chemical analyses using fluorescence-excitation emission matrix (FEEM) and LC-OCD, as well as their fouling potentials. SWRO fouling experiments were carried out and fouling mechanism was investigated by atomic force microscopy (AFM) method and extended Derjaguin-Landau-Verwey-Overbeek (XDLVO) theory. Results showed that initial fouling (i.e., foulant-membrane interaction) was the main driver in SWRO organic fouling with biopolymer fraction as the major contributor followed by low molecular weight fraction. In addition, divalent ions was found to enhance the RO fouling by increasing the adhesion and cohesion forces between foulant-membrane and foulant-foulant.
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Affiliation(s)
- Wenqiang Yin
- Singapore Membrane Technology Centre, Nanyang Environment and Water Research Institute, Nanyang Technological University, 1 Cleantech Loop, CleanTech One, Singapore, 637141, Singapore; School of Civil and Environmental Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Xin Li
- Singapore Membrane Technology Centre, Nanyang Environment and Water Research Institute, Nanyang Technological University, 1 Cleantech Loop, CleanTech One, Singapore, 637141, Singapore
| | - Stanislaus Raditya Suwarno
- Singapore Membrane Technology Centre, Nanyang Environment and Water Research Institute, Nanyang Technological University, 1 Cleantech Loop, CleanTech One, Singapore, 637141, Singapore
| | | | - Tzyy Haur Chong
- Singapore Membrane Technology Centre, Nanyang Environment and Water Research Institute, Nanyang Technological University, 1 Cleantech Loop, CleanTech One, Singapore, 637141, Singapore; School of Civil and Environmental Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore.
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22
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Li X, Liu C, Yin W, Chong TH, Wang R. Design and development of layer-by-layer based low-pressure antifouling nanofiltration membrane used for water reclamation. J Memb Sci 2019. [DOI: 10.1016/j.memsci.2019.05.013] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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23
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Esfahani MR, Aktij SA, Dabaghian Z, Firouzjaei MD, Rahimpour A, Eke J, Escobar IC, Abolhassani M, Greenlee LF, Esfahani AR, Sadmani A, Koutahzadeh N. Nanocomposite membranes for water separation and purification: Fabrication, modification, and applications. Sep Purif Technol 2019. [DOI: 10.1016/j.seppur.2018.12.050] [Citation(s) in RCA: 237] [Impact Index Per Article: 47.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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24
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Antifouling behaviour of PVDF/TiO2 composite membrane: a quantitative and qualitative assessment. IRANIAN POLYMER JOURNAL 2019. [DOI: 10.1007/s13726-019-00700-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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25
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Liang X, Wang P, Wang J, Zhang Y, Wu W, Liu J, Van der Bruggen B. Zwitterionic functionalized MoS2 nanosheets for a novel composite membrane with effective salt/dye separation performance. J Memb Sci 2019. [DOI: 10.1016/j.memsci.2018.12.015] [Citation(s) in RCA: 71] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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26
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Nyamutswa LT, Zhu B, Navaratna D, Collins S, Duke MC. Proof of Concept for Light Conducting Membrane Substrate for UV-Activated Photocatalysis as an Alternative to Chemical Cleaning. MEMBRANES 2018; 8:membranes8040122. [PMID: 30513814 PMCID: PMC6315485 DOI: 10.3390/membranes8040122] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Revised: 11/21/2018] [Accepted: 11/26/2018] [Indexed: 11/23/2022]
Abstract
Adopting an effective strategy to control fouling is a necessary requirement for all membrane processes used in the water/wastewater treatment industry to operate sustainably. The use of ultraviolet (UV) activated photocatalysis has been shown to be effective in mitigating ceramic membrane fouling by natural organic matter. The widely used configuration in which light is directed through the polluted water to the membrane’s active layer suffers from inefficiencies brought about by light absorption by the pollutants and light shielding by the cake layer. To address these limitations, directing light through the substrate, instead of through polluted water, was studied. A UV conducting membrane was prepared by dip coating TiO2 onto a sintered glass substrate. The substrate could successfully conduct UV from a lamp source, unlike a typical alumina substrate. The prepared membrane was applied in the filtration of a humic acid solution as a model compound to study natural organic matter membrane fouling. Directing UV through the substrate showed only a 1 percentage point decline in the effectiveness of the cleaning method over two cleaning events from 72% to 71%, while directing UV over the photocatalytic layer had a 9 percentage point decline from 84% to 75%. Adapting the UV-through-substrate configuration could be more useful in maintaining membrane functionality during humic acid filtration than the current method being used.
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Affiliation(s)
- Lavern T Nyamutswa
- Institute for Sustainable Industries and Liveable Cities, Victoria University, Melbourne 14428, Australia.
| | - Bo Zhu
- Institute for Sustainable Industries and Liveable Cities, Victoria University, Melbourne 14428, Australia.
| | - Dimuth Navaratna
- Institute for Sustainable Industries and Liveable Cities, Victoria University, Melbourne 14428, Australia.
- College of Engineering and Science, Victoria University, Melbourne 14428, Australia.
| | - Stephen Collins
- College of Engineering and Science, Victoria University, Melbourne 14428, Australia.
| | - Mikel C Duke
- Institute for Sustainable Industries and Liveable Cities, Victoria University, Melbourne 14428, Australia.
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27
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Functionalization of ultrafiltration membrane with polyampholyte hydrogel and graphene oxide to achieve dual antifouling and antibacterial properties. J Memb Sci 2018. [DOI: 10.1016/j.memsci.2018.08.017] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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28
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Janus graphene oxide nanosheet: A promising additive for enhancement of polymeric membranes performance prepared via phase inversion. J Colloid Interface Sci 2018; 527:10-24. [DOI: 10.1016/j.jcis.2018.05.012] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Revised: 05/05/2018] [Accepted: 05/07/2018] [Indexed: 01/23/2023]
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29
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Yi X, Zhu Y, Wang D, Yang F, Wang Y, Shi W. Adsorption Mechanism of Oil-in-Water on a TiO 2/Al 2O 3-Polyvinylidene Fluoride (PVDF) Ultrafiltration Membrane. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:9907-9916. [PMID: 30078330 DOI: 10.1021/acs.langmuir.8b01222] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
For the sake of gaining a clear idea of the adsorption mechanism involved with an oil emulsion-membrane system, Daqing crude oil emulsion and two types of polyvinylidene fluoride (PVDF) ultrafiltration membranes made in our laboratory were used as the objects to pursue the adsorption characteristics in this system. Several isotherm and kinetics models were used here to simulate the adsorption process; the effect of variables such as time, initial concentration, temperature, as well as scanning electron microscopy (SEM) and attenuated total reflectance-Fourier transform infrared (ATR-FTIR) spectra were investigated to assist in understanding the mechanism. The results show that the Redlich-Peterson model and the pseudo-first-order kinetic model are the best fitting models, with all of the models exhibiting correlation coefficient ( R2) values of >0.98, suggesting an endothermic adsorption process that involves a combination of chemical and physical mechanisms. Moreover, the thermodynamic parameters, such as Δr Gmθ, Δr Hmθ, and Δr Smθ were also calculated from the temperature dependence, indicating a nonspontaneous process, and increases in temperature had a negative effect on the oil-in-water (o/w) adsorption. Ultimately, further evidence is obtained from the microstructural and infrared spectral analyses.
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Affiliation(s)
- Xuesong Yi
- School of Environmental Science and Engineering , Hainan University , Haikou 570028 , China
| | - Yuguang Zhu
- School of Environmental Science and Engineering , Hainan University , Haikou 570028 , China
| | - Dexin Wang
- School of Environmental Science and Engineering , Hainan University , Haikou 570028 , China
| | - Fei Yang
- School of Environmental Science and Engineering , Hainan University , Haikou 570028 , China
| | - Yong Wang
- State Key Laboratory Breeding Base of Marine Genetic Resources , Third Institute of Oceanography , Xiamen 361005 , China
| | - Wenxin Shi
- State Key Laboratory of Urban Water Resource and Environment , Harbin Institute of Technology , Harbin 150090 , China
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30
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Microstructures and performances of pegylated polysulfone membranes from an in situ synthesized solution via vapor induced phase separation approach. J Colloid Interface Sci 2018; 515:152-159. [DOI: 10.1016/j.jcis.2018.01.032] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Revised: 01/06/2018] [Accepted: 01/08/2018] [Indexed: 01/22/2023]
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31
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Lakhotia SR, Mukhopadhyay M, Kumari P. Surface-Modified Nanocomposite Membranes. SEPARATION AND PURIFICATION REVIEWS 2017. [DOI: 10.1080/15422119.2017.1386681] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Sonia R. Lakhotia
- Applied Chemistry Department, Sardar Vallabhbhai National Institute of Technology, Surat, India
- Department of Chemical Engineering, Sardar Vallabhbhai National Institute of Technology, Surat, India
| | - Mausumi Mukhopadhyay
- Department of Chemical Engineering, Sardar Vallabhbhai National Institute of Technology, Surat, India
| | - Premlata Kumari
- Applied Chemistry Department, Sardar Vallabhbhai National Institute of Technology, Surat, India
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32
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Iron-tannin-framework complex modified PES ultrafiltration membranes with enhanced filtration performance and fouling resistance. J Colloid Interface Sci 2017. [DOI: 10.1016/j.jcis.2017.06.067] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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33
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Progress and perspectives for synthesis of sustainable antifouling composite membranes containing in situ generated nanoparticles. J Memb Sci 2017. [DOI: 10.1016/j.memsci.2016.11.040] [Citation(s) in RCA: 115] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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