101
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Yu YA, Kim JJ, Kang H, Lee JC. Thin-Film Composite (TFC) Membranes with Hydrophilic Ethyl Cellulose-g-poly(ethylene glycol) (EP) Substrates for Forward Osmosis (FO) Application. KOREAN CHEMICAL ENGINEERING RESEARCH 2016. [DOI: 10.9713/kcer.2016.54.4.510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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102
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Dong LX, Huang XC, Wang Z, Yang Z, Wang XM, Tang CY. A thin-film nanocomposite nanofiltration membrane prepared on a support with in situ embedded zeolite nanoparticles. Sep Purif Technol 2016. [DOI: 10.1016/j.seppur.2016.04.043] [Citation(s) in RCA: 104] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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103
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Kuang W, Liu Z, Kang G, Liu D, Zhou M, Cao Y. Thin film composite forward osmosis membranes with poly(2-hydroxyethyl methacrylate) grafted nano-TiO2as additive in substrate. J Appl Polym Sci 2016. [DOI: 10.1002/app.43719] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Wu Kuang
- Dalian National Library for Clean Energy (DNL), Dalian Institute of Chemical Physics, Chinese Academy of Sciences; Dalian 116023 China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - Zhongnan Liu
- Dalian National Library for Clean Energy (DNL), Dalian Institute of Chemical Physics, Chinese Academy of Sciences; Dalian 116023 China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - Guodong Kang
- Dalian National Library for Clean Energy (DNL), Dalian Institute of Chemical Physics, Chinese Academy of Sciences; Dalian 116023 China
| | - Dandan Liu
- Dalian National Library for Clean Energy (DNL), Dalian Institute of Chemical Physics, Chinese Academy of Sciences; Dalian 116023 China
| | - Meiqing Zhou
- Dalian National Library for Clean Energy (DNL), Dalian Institute of Chemical Physics, Chinese Academy of Sciences; Dalian 116023 China
| | - Yiming Cao
- Dalian National Library for Clean Energy (DNL), Dalian Institute of Chemical Physics, Chinese Academy of Sciences; Dalian 116023 China
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104
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Lu P, Liang S, Qiu L, Gao Y, Wang Q. Thin film nanocomposite forward osmosis membranes based on layered double hydroxide nanoparticles blended substrates. J Memb Sci 2016. [DOI: 10.1016/j.memsci.2015.12.066] [Citation(s) in RCA: 81] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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105
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Obaid M, Ghouri ZK, Fadali OA, Khalil KA, Almajid AA, Barakat NAM. Amorphous SiO2 NP-Incorporated Poly(vinylidene fluoride) Electrospun Nanofiber Membrane for High Flux Forward Osmosis Desalination. ACS APPLIED MATERIALS & INTERFACES 2016; 8:4561-74. [PMID: 26684268 DOI: 10.1021/acsami.5b09945] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Novel amorphous silica nanoparticle-incorporated poly(vinylidine fluoride) electrospun nanofiber mats are introduced as effective membranes for forward osmosis desalination technology. The influence of the inorganic nanoparticle content on water flux and salt rejection was investigated by preparing electrospun membranes with 0, 0.5, 1, 2, and 5 wt % SiO2 nanoparticles. A laboratory-scale forward osmosis cell was utilized to validate the performance of the introduced membranes using fresh water as a feed and different brines as draw solution (0.5, 1, 1.5, and 2 M NaCl). The results indicated that the membrane embedding 0.5 wt % displays constant salt rejection of 99.7% and water flux of 83 L m(-2) h(-1) with 2 M NaCl draw solution. Moreover, this formulation displayed the lowest structural parameter (S = 29.7 μm), which represents approximately 69% reduction compared to the pristine membrane. Moreover, this study emphasizes the capability of the electrospinning process in synthesizing effective membranes as the observed water flux and average salt rejection of the pristine poly(vinylidine fluoride) membrane was 32 L m(-2) h(-1) (at 2 M NaCl draw solution) and 99%, respectively. On the other hand, increasing the inorganic nanoparticles to 5 wt % showed negative influence on the salt rejection as the observed salt flux was 1651 mol m(-2) h(-1). Besides the aforementioned distinct performance, studies of the mechanical properties, porosity, and wettability concluded that the introduced membranes are effective for forward osmosis desalination technology.
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Affiliation(s)
- M Obaid
- Bionanosystem Engineering Department, Chonbuk National University , Jeonju 561-756, Republic of South Korea
| | - Zafar Khan Ghouri
- Organic Materials and Fiber Engineering Department, Chonbuk National University , Jeonju 561-756, Republic of South Korea
| | - Olfat A Fadali
- Chemical Engineering Department, Faculty of Engineering, Minia University , Minia, Egypt
| | - Khalil Abdelrazek Khalil
- Mechanical Engineering Department, King Saud University , P.O. Box 800, Riyadh 11421, Saudi Arabia
- Materials Engineering and Design Department, Aswan University , Aswan, Egypt
| | - Abdulhakim A Almajid
- Mechanical Engineering Department, King Saud University , P.O. Box 800, Riyadh 11421, Saudi Arabia
| | - Nasser A M Barakat
- Organic Materials and Fiber Engineering Department, Chonbuk National University , Jeonju 561-756, Republic of South Korea
- Chemical Engineering Department, Faculty of Engineering, Minia University , Minia, Egypt
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106
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Liu Q, Li J, Zhou Z, Xie J, Lee JY. Hydrophilic Mineral Coating of Membrane Substrate for Reducing Internal Concentration Polarization (ICP) in Forward Osmosis. Sci Rep 2016; 6:19593. [PMID: 26796675 PMCID: PMC4726141 DOI: 10.1038/srep19593] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Accepted: 12/15/2015] [Indexed: 11/09/2022] Open
Abstract
Internal concentration polarization (ICP) is a major issue in forward osmosis (FO) as it can significantly reduce the water flux in FO operations. It is known that a hydrophilic substrate and a smaller membrane structure parameter (S) are effective against ICP. This paper reports the development of a thin film composite (TFC) FO membrane with a hydrophilic mineral (CaCO3)-coated polyethersulfone (PES)-based substrate. The CaCO3 coating was applied continuously and uniformly on the membrane pore surfaces throughout the TFC substrate. Due to the intrinsic hydrophilicity of the CaCO3 coating, the substrate hydrophilicity was significantly increased and the membrane S parameter was reduced to as low as the current best of cellulose-based membranes but without the mechanical fragility of the latter. As a result, the ICP of the TFC-FO membrane could be significantly reduced to yield a remarkable increase in water flux without the loss of membrane selectivity.
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Affiliation(s)
- Qing Liu
- Department of Chemical &Biomolecular Engineering, National University of Singapore, 10 Kent Ridge Crescent, Singapore, 119260
| | - Jingguo Li
- Department of Chemical &Biomolecular Engineering, National University of Singapore, 10 Kent Ridge Crescent, Singapore, 119260
| | - Zhengzhong Zhou
- Department of Chemical &Biomolecular Engineering, National University of Singapore, 10 Kent Ridge Crescent, Singapore, 119260
| | - Jianping Xie
- Department of Chemical &Biomolecular Engineering, National University of Singapore, 10 Kent Ridge Crescent, Singapore, 119260
| | - Jim Yang Lee
- Department of Chemical &Biomolecular Engineering, National University of Singapore, 10 Kent Ridge Crescent, Singapore, 119260
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107
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Zirehpour A, Rahimpour A, Khoshhal S, Firouzjaei MD, Ghoreyshi AA. The impact of MOF feasibility to improve the desalination performance and antifouling properties of FO membranes. RSC Adv 2016. [DOI: 10.1039/c6ra14591d] [Citation(s) in RCA: 74] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In this study, a hydrophilic metal–organic framework (MOF) was applied to improve the performance of a cellulosic membrane for forward osmosis (FO) desalination application.
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Affiliation(s)
- Alireza Zirehpour
- Membrane Research Laboratory
- School of Chemical Engineering
- Babol University of Technology
- Babol
- Iran
| | - Ahmad Rahimpour
- Membrane Research Laboratory
- School of Chemical Engineering
- Babol University of Technology
- Babol
- Iran
| | - Saeed Khoshhal
- Membrane Research Laboratory
- School of Chemical Engineering
- Babol University of Technology
- Babol
- Iran
| | | | - Ali Asghar Ghoreyshi
- Membrane Research Laboratory
- School of Chemical Engineering
- Babol University of Technology
- Babol
- Iran
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108
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kuang W, Liu Z, Yu H, Kang G, Jie X, Jin Y, Cao Y. Investigation of internal concentration polarization reduction in forward osmosis membrane using nano-CaCO3 particles as sacrificial component. J Memb Sci 2016. [DOI: 10.1016/j.memsci.2015.06.052] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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109
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Lu P, Liang S, Zhou T, Mei X, Zhang Y, Zhang C, Umar A, Wang Q. Layered double hydroxide/graphene oxide hybrid incorporated polysulfone substrate for thin-film nanocomposite forward osmosis membranes. RSC Adv 2016. [DOI: 10.1039/c6ra10080e] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Herein, we report the use of a layered double hydroxide/graphene oxide (LDH/GO) hybrid as a nanofiller for a polysulfone (PSf) substrate in the fabrication of a thin film nanocomposite (TFN) forward osmosis (FO) membrane.
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Affiliation(s)
- Peng Lu
- College of Environmental Science and Engineering
- Beijing Forestry University
- Beijing 100083
- P. R. China
| | - Shuai Liang
- College of Environmental Science and Engineering
- Beijing Forestry University
- Beijing 100083
- P. R. China
| | - Tuantuan Zhou
- College of Environmental Science and Engineering
- Beijing Forestry University
- Beijing 100083
- P. R. China
| | - Xueyi Mei
- College of Environmental Science and Engineering
- Beijing Forestry University
- Beijing 100083
- P. R. China
| | - Yu Zhang
- College of Environmental Science and Engineering
- Beijing Forestry University
- Beijing 100083
- P. R. China
| | - Cheng Zhang
- College of Environmental Science and Engineering
- Beijing Forestry University
- Beijing 100083
- P. R. China
| | - Ahmad Umar
- Department of Chemistry
- College of Science and Arts
- Najran University
- Najran-11001
- Kingdom of Saudi Arabia
| | - Qiang Wang
- College of Environmental Science and Engineering
- Beijing Forestry University
- Beijing 100083
- P. R. China
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110
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Younas H, Shao J, Bai H, Liu L, He Y. Inherent porous structure modified by titanium dioxide nanoparticle incorporation and effect on the fouling behavior of hybrid poly(vinylidene fluoride) membranes. J Appl Polym Sci 2015. [DOI: 10.1002/app.43265] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Hassan Younas
- School of Environmental Science and Engineering; Shanghai Jiao Tong University; Shanghai 200240 China
| | - Jiahui Shao
- School of Environmental Science and Engineering; Shanghai Jiao Tong University; Shanghai 200240 China
| | - Hongwei Bai
- Energy Research Institute, Nanyang Technological University; 637141 Singapore
| | - Liyan Liu
- School of Environmental Science and Engineering; Shanghai Jiao Tong University; Shanghai 200240 China
| | - Yiliang He
- School of Environmental Science and Engineering; Shanghai Jiao Tong University; Shanghai 200240 China
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111
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Nguyen TPN, Jun BM, Lee JH, Kwon YN. Comparison of integrally asymmetric and thin film composite structures for a desirable fashion of forward osmosis membranes. J Memb Sci 2015. [DOI: 10.1016/j.memsci.2015.05.039] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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112
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Dabaghian Z, Rahimpour A. Carboxylated carbon nanofibers as hydrophilic porous material to modification of cellulosic membranes for forward osmosis desalination. Chem Eng Res Des 2015. [DOI: 10.1016/j.cherd.2015.10.008] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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113
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Park MJ, Phuntsho S, He T, Nisola GM, Tijing LD, Li XM, Chen G, Chung WJ, Shon HK. Graphene oxide incorporated polysulfone substrate for the fabrication of flat-sheet thin-film composite forward osmosis membranes. J Memb Sci 2015. [DOI: 10.1016/j.memsci.2015.06.053] [Citation(s) in RCA: 152] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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114
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Choi HG, Son M, Yoon S, Celik E, Kang S, Park H, Park CH, Choi H. Alginate fouling reduction of functionalized carbon nanotube blended cellulose acetate membrane in forward osmosis. CHEMOSPHERE 2015; 136:204-210. [PMID: 26022283 DOI: 10.1016/j.chemosphere.2015.05.003] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2014] [Revised: 04/07/2015] [Accepted: 05/01/2015] [Indexed: 06/04/2023]
Abstract
Functionalized multi-walled carbon nanotube blended cellulose acetate (fCNT-CA) membranes were synthesized for forward osmosis (FO) through phase inversion. The membranes were characterized through SEM, FTIR, and water contact angle measurement. AFM was utilized to investigate alginate fouling mechanism on the membrane. It reveals that the fCNT contributes to advance alginate fouling resistance in FO (57% less normalized water flux decline for 1% fCNT-CA membrane was observed than that for bare CA membrane), due to enhanced electrostatic repulsion between the membrane and the alginate foulant. Furthermore, it was found that the fCNT-CA membranes became more hydrophilic due to carboxylic groups in functionalized carbon nanotube, resulting in approximately 50% higher water-permeated flux than bare CA membrane. This study presents not only the fabrication of fCNT-CA membrane and its application to FO, but also the quantification of the beneficial role of fCNT with respect to alginate fouling in FO.
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Affiliation(s)
- Hyeon-Gyu Choi
- School of Environmental Science and Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju 500-712, Republic of Korea
| | - Moon Son
- School of Environmental Science and Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju 500-712, Republic of Korea
| | - SangHyeon Yoon
- School of Environmental Science and Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju 500-712, Republic of Korea
| | - Evrim Celik
- Suleyman Demirel University, Faculty of Engineering, Department of Environmental Engineering, 32260 Isparta, Turkey
| | - Seoktae Kang
- Department of Civil Engineering, Kyung Hee University, Gyeonggi 446-701, Republic of Korea
| | - Hosik Park
- Center for Membranes, Advanced Materials Division, Korea Research Institute of Chemical Technology (KRICT), Daejeon 305-600, Republic of Korea
| | - Chul Hwi Park
- School of Environmental Engineering, The University of Seoul, Seoul 130-743, Republic of Korea
| | - Heechul Choi
- School of Environmental Science and Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju 500-712, Republic of Korea.
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115
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Hu W, Yin J, Deng B, Hu Z. Application of nano TiO2 modified hollow fiber membranes in algal membrane bioreactors for high-density algae cultivation and wastewater polishing. BIORESOURCE TECHNOLOGY 2015; 193:135-41. [PMID: 26125613 DOI: 10.1016/j.biortech.2015.06.070] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2015] [Revised: 06/11/2015] [Accepted: 06/15/2015] [Indexed: 05/26/2023]
Abstract
Polyvinylidene fluoride (PVDF) hollow fiber membranes with nano-TiO2 (5% of PVDF by mass, average size = 25 nm) additives were fabricated and applied for high-density algae (Chlorella vulgaris) cultivation. At the average light intensity of 121 μmol/m(2)/s, the algal membrane bioreactors (A-MBR) operated at a hydraulic retention time of 0.5d and an average solids retention time of 25d had an average algae biomass concentration of 2350 ± 74 mg/L (in COD units) and algal biomass production rate of 6.5 ± 0.1g/m(2)/d. The A-MBRs removed an average of 78% of phosphorus from the wastewater at the initial total phosphorus concentrations ranging from 3.5 to 8.6 mg/L. The nano TiO2-embedded membranes had improved surface hydrophilicity with its total resistance about 50% lower than that of the control. This study demonstrated that PVDF/TiO2 nanocomposite membranes had a better antifouling property for high-density algae cultivation and wastewater polishing.
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Affiliation(s)
- Weiming Hu
- Department of Civil and Environmental Engineering, University of Missouri, Columbia, MO 65211, United States
| | - Jun Yin
- Department of Civil and Environmental Engineering, University of Missouri, Columbia, MO 65211, United States
| | - Baolin Deng
- Department of Civil and Environmental Engineering, University of Missouri, Columbia, MO 65211, United States
| | - Zhiqiang Hu
- Department of Civil and Environmental Engineering, University of Missouri, Columbia, MO 65211, United States.
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116
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Qin D, Liu Z, Delai Sun D, Song X, Bai H. A new nanocomposite forward osmosis membrane custom-designed for treating shale gas wastewater. Sci Rep 2015; 5:14530. [PMID: 26416014 PMCID: PMC4586890 DOI: 10.1038/srep14530] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2015] [Accepted: 08/25/2015] [Indexed: 11/09/2022] Open
Abstract
Managing the wastewater discharged from oil and shale gas fields is a big challenge, because this kind of wastewater is normally polluted by high contents of both oils and salts. Conventional pressure-driven membranes experience little success for treating this wastewater because of either severe membrane fouling or incapability of desalination. In this study, we designed a new nanocomposite forward osmosis (FO) membrane for accomplishing simultaneous oil/water separation and desalination. This nanocomposite FO membrane is composed of an oil-repelling and salt-rejecting hydrogel selective layer on top of a graphene oxide (GO) nanosheets infused polymeric support layer. The hydrogel selective layer demonstrates strong underwater oleophobicity that leads to superior anti-fouling capability under various oil/water emulsions, and the infused GO in support layer can significantly mitigate internal concentration polarization (ICP) through reducing FO membrane structural parameter by as much as 20%. Compared with commercial FO membrane, this new FO membrane demonstrates more than three times higher water flux, higher removals for oil and salts (>99.9% for oil and >99.7% for multivalent ions) and significantly lower fouling tendency when investigated with simulated shale gas wastewater. These combined merits will endorse this new FO membrane with wide applications in treating highly saline and oily wastewaters.
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Affiliation(s)
- Detao Qin
- Energy Research Institute @ NTU, Interdisciplinary Graduate School, Nanyang Technological University, 639798, Singapore
| | - Zhaoyang Liu
- Qatar Environment and Energy Research Institute (QEERI), HBKU, Qatar Foundation, PO Box 5825, Doha, Qatar
| | - Darren Delai Sun
- School of Civil and Environmental Engineering, Nanyang Technological University, 639798, Singapore
| | - Xiaoxiao Song
- School of Civil and Environmental Engineering, Nanyang Technological University, 639798, Singapore
| | - Hongwei Bai
- Energy Research Institute @ NTU, Nanyang Technological University, 639798, Singapore
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117
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Lau WJ, Gray S, Matsuura T, Emadzadeh D, Chen JP, Ismail AF. A review on polyamide thin film nanocomposite (TFN) membranes: History, applications, challenges and approaches. WATER RESEARCH 2015; 80:306-24. [PMID: 26011136 DOI: 10.1016/j.watres.2015.04.037] [Citation(s) in RCA: 338] [Impact Index Per Article: 37.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2015] [Revised: 04/23/2015] [Accepted: 04/24/2015] [Indexed: 05/05/2023]
Abstract
This review focuses on the development of polyamide (PA) thin film nanocomposite (TFN) membranes for various aqueous media-based separation processes such as nanofiltration, reverse osmosis and forward osmosis since the concept of TFN was introduced in year 2007. Although the total number of published TFN articles falls far short of the articles of the well-known thin film composite (TFC) membranes, its growth rate is significant, particularly since 2012. Generally, by incorporating an appropriate amount of nanofiller into a thin selective PA layer of a composite membrane, one could produce TFN membranes with enhanced separation characteristics as compared to the conventional TFC membrane. For certain cases, the resulting TFN membranes demonstrate not only excellent antifouling resistance and/or greater antibacterial effect, but also possibly overcome the trade-off effect between water permeability and solute selectivity. Furthermore, this review attempts to give the readers insights into the difficulties of incorporating inorganic nanomaterials into the organic PA layer whose thickness usually falls in a range of several-hundred nanometers. It is also intended to show new possible approaches to overcome these challenges in TFN membrane fabrication.
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Affiliation(s)
- W J Lau
- Advanced Membrane Technology Research Centre (AMTEC), Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia.
| | - Stephen Gray
- Institute for Sustainability and Innovation (ISI), College of Engineering and Science, Victoria University, Werribee Campus, PO Box 14428, Melbourne, VIC 8001, Australia
| | - T Matsuura
- Advanced Membrane Technology Research Centre (AMTEC), Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia; Industrial Membrane Research Laboratory, Department of Chemical and Biological Engineering, University of Ottawa, 161 Louis Pasteur St, Ottawa, ON K1N 6N5, Canada
| | - D Emadzadeh
- Advanced Membrane Technology Research Centre (AMTEC), Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia; Department of Chemical Engineering, Gachsaran Branch, Islamic Azad University, Gachsaran, Iran
| | - J Paul Chen
- Department of Civil and Environmental Engineering, National University of Singapore, 10 Kent Ridget, 129791, Singapore
| | - A F Ismail
- Advanced Membrane Technology Research Centre (AMTEC), Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia
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118
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Baghbanzadeh M, Rana D, Lan CQ, Matsuura T. Effects of Inorganic Nano-Additives on Properties and Performance of Polymeric Membranes in Water Treatment. SEPARATION AND PURIFICATION REVIEWS 2015. [DOI: 10.1080/15422119.2015.1068806] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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119
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Obaid M, Barakat NA, Fadali OA, Al-Meer S, Elsaid K, Khalil KA. Stable and effective super-hydrophilic polysulfone nanofiber mats for oil/water separation. POLYMER 2015. [DOI: 10.1016/j.polymer.2015.07.006] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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120
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121
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Nayak V, Jyothi MS, Balakrishna RG, Padaki M, Ismail AF. Preparation and Characterization of Chitosan Thin Films on Mixed-Matrix Membranes for Complete Removal of Chromium. ChemistryOpen 2015; 4:278-87. [PMID: 26246989 PMCID: PMC4522177 DOI: 10.1002/open.201402133] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2014] [Indexed: 12/07/2022] Open
Abstract
Herein we present a new approach for the complete removal of Cr(VI) species, through reduction of Cr(VI) to Cr(III), followed by adsorption of Cr(III). Reduction of chromium from water is an important challenge, as Cr(IV) is one of the most toxic substances emitted from industrial processes. Chitosan (CS) thin films were developed on plain polysulfone (PSf) and PSf/TiO2 membrane substrates by a temperature-induced technique using polyvinyl alcohol as a binder. Structure property elucidation was carried out by X-ray diffraction, microscopy, spectroscopy, contact angle measurement, and water uptake studies. The increase in hydrophilicity followed the order: PSf < PSf/TiO2 < PSf/TiO2/CS membranes. Use of this thin-film composite membrane for chromium removal was investigated with regards to the effects of light and pH. The observations reveal 100 % reduction of Cr(VI) to Cr(III) through electrons and protons donated from OH and NH2 groups of the CS layer; the reduced Cr(III) species are adsorbed onto the CS layer via complexation to give chromium-free water.
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Affiliation(s)
- Vignesh Nayak
- Center for Nano and Material Sciences, Jain UniversityRamanagaram, Bangalore, 562112, India
| | | | - R Geetha Balakrishna
- Center for Nano and Material Sciences, Jain UniversityRamanagaram, Bangalore, 562112, India
| | - Mahesh Padaki
- Center for Nano and Material Sciences, Jain UniversityRamanagaram, Bangalore, 562112, India
| | - Ahmad Fauzi Ismail
- Advanced Membrane Research Centre (AMTEC), Universiti Teknologi Malaysia, UTM Skudai81310, Johor, Malaysia
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122
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Liu X, Ng HY. Fabrication of layered silica–polysulfone mixed matrix substrate membrane for enhancing performance of thin-film composite forward osmosis membrane. J Memb Sci 2015. [DOI: 10.1016/j.memsci.2015.02.012] [Citation(s) in RCA: 81] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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123
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124
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Chemical cleaning protocols for thin film composite (TFC) polyamide forward osmosis membranes used for municipal wastewater treatment. J Memb Sci 2015. [DOI: 10.1016/j.memsci.2014.10.032] [Citation(s) in RCA: 88] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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125
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Ghanbari M, Emadzadeh D, Lau WJ, Matsuura T, Ismail AF. Synthesis and characterization of novel thin film nanocomposite reverse osmosis membranes with improved organic fouling properties for water desalination. RSC Adv 2015. [DOI: 10.1039/c4ra16177g] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Incorporation of HNTs into PA layer improved not only the structural and separation characteristics of composite membrane but also its antifouling properties.
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Affiliation(s)
- M. Ghanbari
- Advanced Membrane Technology Research Centre (AMTEC)
- Universiti Teknologi Malaysia
- 81310 Skudai
- Malaysia
| | - D. Emadzadeh
- Advanced Membrane Technology Research Centre (AMTEC)
- Universiti Teknologi Malaysia
- 81310 Skudai
- Malaysia
- Department of Chemical Engineering, Gachsaran Branch
| | - W. J. Lau
- Advanced Membrane Technology Research Centre (AMTEC)
- Universiti Teknologi Malaysia
- 81310 Skudai
- Malaysia
| | - T. Matsuura
- Advanced Membrane Technology Research Centre (AMTEC)
- Universiti Teknologi Malaysia
- 81310 Skudai
- Malaysia
- Industrial Membrane Research Laboratory
| | - A. F. Ismail
- Advanced Membrane Technology Research Centre (AMTEC)
- Universiti Teknologi Malaysia
- 81310 Skudai
- Malaysia
| |
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Taurine as an additive for improving the fouling resistance of nanofiltration composite membranes. J Appl Polym Sci 2014. [DOI: 10.1002/app.41620] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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