Modification of cellulose acetate membrane using monosodium glutamate additives prepared by microwave heating

Kee, Chan Mieow; Idris, Ani

doi:10.1016/j.jiec.2012.06.005

Cited by 25 publications

(5 citation statements)

References 32 publications

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“…Based on the complete combustion of the CA membrane control sample, the increment of residual mass is related to the weight percent of added metal oxide NPs in the membranes. For the neat CA sample, the thermal decomposition temperature of about 350°C, as reported by Kee and Idris, is close to the value obtained in this research 29 …”

Section: Resultssupporting

confidence: 91%

“…For the neat CA sample, the thermal decomposition temperature of about 350°C, as reported by Kee and Idris, is close to the value obtained in this research. 29 As reported in the literature, the thermal decomposition temperature of the CA membrane increases with the addition of TiO 2 NPs. 30 The thermal decomposition temperature of the neat CA membrane (M1) increases from 359.1 to 363.8°C for the TiO 2 modified membrane (M3).…”

Section: Thermogravimetric Analysis Of the Ca Fo Membranesmentioning

confidence: 60%

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Enhanced performance and fouling resistance of cellulose acetate forward osmosis membrane with the spatial distribution of TiO₂ and Al₂O₃ nanoparticles

Baniasadi

Shabani

Mohammadi

et al. 2020

J of Chemical Tech & Biotech

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BACKGROUND: Novel nanocomposite membranes with spatial distribution of nanoparticles (NPs) were fabricated for forward osmosis (FO) applications. In this work, TiO 2 and Al 2 O 3 NPs were used as hydrophilic additives in order to improve the performance and fouling resistance of cellulose acetate (CA) FO membrane. RESULTS: Attenuated Total Reflection Fourier Transform Infrared (ATR-FTIR) and x-ray diffraction (XRD) analyses confirmed the successful incorporation of the NPs into the synthesized membranes. The specific reverse salt flux (SRSF) of the TiO 2 modified membrane was reduced from 0.88 to 0.56 g L −1 , which was attributed to enhanced hydrophilicity, porosity, and the simultaneously improved water and salt permeability coefficients. After the evaluation of CA membranes with various contents of TiO 2 NPs, Al 2 O 3 NPs were added to the membrane structure as a secondary additive under the optimized content of TiO 2 NPs. Al 2 O 3 NPs have a higher dispersion in the membrane sublayer beneath, which can affect the hydrophilicity and surface charge of the membranes. Al 2 O 3 and TiO 2 modified membranes showed the lowest values of contact angle and zeta potential in neutral pH, which was 56.7°and − 68.4 mV, respectively. This membrane showed a water flux (WF) of 15 L m −2 h −1 and an SRSF of 0.36 g L −1 when using 1 mol L −1 NaCl as a draw solution. The fouling behavior of sodium alginate on the neat and modified membranes was also investigated, and the results showed a reduced fouling propensity and a superior fouling reversibility in the modified membranes. CONCLUSION: Based upon these findings, using low-density hydrophilic NPs in the membrane structure can fabricate membranes with more hydrophilicity, excellent FO performance, and high organic fouling resistance.

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Section: Resultssupporting

confidence: 91%

Section: Thermogravimetric Analysis Of the Ca Fo Membranesmentioning

confidence: 60%

Enhanced performance and fouling resistance of cellulose acetate forward osmosis membrane with the spatial distribution of TiO₂ and Al₂O₃ nanoparticles

Baniasadi

Shabani

Mohammadi

et al. 2020

J of Chemical Tech & Biotech

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“…Monosodium glutamate (MSG) is environmental friendly, easily available and cheap food additive having extremely hydrophilic nature due to the presence of −COOH group [27]. The −COOH or −COONa groups (cation exchange component) via ion exchange process can transfer Na + ions, while OH − ions may be transferred through membrane via weak interactions such as hydrogen bonding with the hydroxyl (−OH) groups of PVA and also −Si−OH groups, presents in the membrane [11,28].…”

Section: Introductionmentioning

confidence: 99%

Novel Silica Functionalized Monosodium Glutamate/PVA Cross-Linked Membranes for Alkali Recovery by Diffusion Dialysis

2021

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In this work, two types of silica functionalized monosodium glutamate (GMSG and VMSG)/ poly(vinyl alcohol) (PVA) were cross-linked by sol-gel process to prepare novel hybrid cation exchange membranes (CEMs). The prepared membranes were systematically characterized by FTIR, ion exchange capacity (IEC), TGA, water uptake, water swelling, mechanical strength and diffusion dialysis (DD) performance for alkali separation using NaOH/Na2WO4 solution. The FTIR peaks around 1260-1350 cm −1 confirmed the secondary C−N linkages. The cross-linking between GMSG/VMSG and PVA was verified by the presence of stretching peaks of Si−O−C, Si−O−Si, C−O−C, and −C(=O)−O−C groups between 1080-1120 cm −1 . TGA results indicated that GMSG membranes showed relatively high thermal stability as compared to VMSG membranes. Water uptake and degree of swelling decreased while IEC values increased with the increase of GMSG/VMSG content in membrane matrix. The mechanical properties of the membranes improved up to 40% GMSG/VMSG content. The NaOH dialysis coefficient (UOH)values improved while values of separation factor (S) declined with the increase of GMSG/VMSG content. Finally, the effect of temperature was studied and it was found that increase in temperature from 25 to 45 °C resulted in increase of diffusion coefficient and decrease of separation factor for both GMSG/VMSG crossed-linked with PVA membranes.

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“…extraction with solvents, coagulation and flocculation, electrocoagulation, adsorption on various materials or membrane separation. The latter method has been increasingly often applied because of high efficiency and low cost of the process [14][15][16][17]. There is one more important benefit from using membrane processes, by appropriate membrane modification it is possible to obtain membranes highly selective towards certain compounds [18].…”

Section: Introductionmentioning

confidence: 99%

Removal of Iron and Copper Ions from the Liquid Phase by Modified Polymeric Membranes

Krason

Pietrzak

2018

J Polym Environ

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Preparation of polymeric membranes based on cellulose acetate and modified by adding different amounts of a pore generating agent, which was polyvinylpyrrolidone (PVP), is presented and potential application of the membranes obtained for the removal of iron and copper ions from liquid phase is examined. Addition of various amounts of PVP has an impact on the physical (porosity, equilibrium water content and permeability) and chemical (content of the surface oxygen group, pH) properties of the membranes obtained. Filtration of iron and cupper solution leads to significant changes in the total content of surface oxygen groups, however the acidic oxygen groups remain dominant. With the content of PVP increasing within a certain range, the membrane permeability is improved. The membranes obtained show higher efficiency in removal of Fe 3+ than Cu 2+ ions, but with increasing content of PVP the efficiency in iron ions removal decreases and the total filtration resistance decreases after filtration of iron ions solutions.

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Modification of cellulose acetate membrane using monosodium glutamate additives prepared by microwave heating

Cited by 25 publications

References 32 publications

Enhanced performance and fouling resistance of cellulose acetate forward osmosis membrane with the spatial distribution of TiO₂ and Al₂O₃ nanoparticles

Enhanced performance and fouling resistance of cellulose acetate forward osmosis membrane with the spatial distribution of TiO₂ and Al₂O₃ nanoparticles

Novel Silica Functionalized Monosodium Glutamate/PVA Cross-Linked Membranes for Alkali Recovery by Diffusion Dialysis

Removal of Iron and Copper Ions from the Liquid Phase by Modified Polymeric Membranes

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Modification of cellulose acetate membrane using monosodium glutamate additives prepared by microwave heating

Cited by 25 publications

References 32 publications

Enhanced performance and fouling resistance of cellulose acetate forward osmosis membrane with the spatial distribution of TiO2 and Al2O3 nanoparticles

Enhanced performance and fouling resistance of cellulose acetate forward osmosis membrane with the spatial distribution of TiO2 and Al2O3 nanoparticles

Novel Silica Functionalized Monosodium Glutamate/PVA Cross-Linked Membranes for Alkali Recovery by Diffusion Dialysis

Removal of Iron and Copper Ions from the Liquid Phase by Modified Polymeric Membranes

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Product

Resources

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Enhanced performance and fouling resistance of cellulose acetate forward osmosis membrane with the spatial distribution of TiO₂ and Al₂O₃ nanoparticles

Enhanced performance and fouling resistance of cellulose acetate forward osmosis membrane with the spatial distribution of TiO₂ and Al₂O₃ nanoparticles