Synthesis and characterization of thin film composite membranes made of PSF-TiO2/GO nanocomposite substrate for forward osmosis applications

Sirinupong, T.; Youravong, Wirote; Tirawat, Dusida; Lau, Woei Jye; Lai, Gwo Sung; Ismail, Ahmad Fauzi

doi:10.1016/j.arabjc.2017.05.006

Cited by 84 publications

(46 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The formula for calculating pure water flux ( J w ) and reverse salt flux ( J s ) is following the previous literature …”

Section: Methodsmentioning

confidence: 99%

“…The formula for calculating pure water flux (J w ) and reverse salt flux (J s ) is following the previous literature. 17 The water flux (J w , LMH) across a membrane was calculated from the volume change of DS:…”

Section: Characterization Of Go-cs Substrates and Membranesmentioning

confidence: 99%

“…The modification of hydrophobic polymer substrates with nanoparticles is a good method for FO modification. Nanoparticles, such as graphene oxide (GO), carbon nanotubes, titanium (TiO 2 ), modified amino‐functionalized zinc oxide, and metal‐organic frameworks (MOFs), are incorporated to improve the structure and hydrophilicity of hydrophobic polymer substrates. Recently, the use of carbon‐based nanomaterials as novel membrane modifiers has attracted considerable attention.…”

Section: Introductionmentioning

confidence: 99%

“…Li et al found that the addition of GO and TiO 2 as fillers to PES substrate could effectively enhance the antifouling ability of TFC‐NS membranes. Sirinupong et al optimized the substrate by incorporating TiO 2 /GO into a PSf matrix. All the TFC membranes showed increased water flux and >90% NaCl rejection.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Chitosan‐modified graphene oxide as a modifier for improving the structure and performance of forward osmosis membranes

Zhang

2019

Polymers for Advanced Techs

View full text Add to dashboard Cite

Chitosan (CS) with good hydrophilicity and charged property was used to modify graphene oxide (GO), the obtained GO‐CS was used as a novel modifier to fabricate thin film composite forward osmosis (FO) membranes. The results revealed that the amino groups on CS reacted with carboxyl groups on GO, and the lamellar structure of the GO nanosheets was peeled off by CS, resulting in the reducing of their thicknesses. The GO‐CS improved the hydrophilicity of polyethersulfone (PES) substrate, and their contact angles decreased to 64° with the addition of GO‐CS in the substrate. GO‐CS also increased the porosity of the substrate and surface roughness of FO membrane, thereby optimizing the water flux and reverse salt flux of FO membrane. The average water flux of the FO membrane reached the optimal flux of 21.34 L/(m2 h) when GO‐CS addition was 0.5 wt%, and further addition of GO‐CS to the substrate would decrease the water flux of FO membrane, and the reverse salt flux also decreased to the lowest value of 2.26 g/(m2 h). However, the salt rejection of the membrane increased from 91.4% to 95.1% when GO‐CS addition increased from 0.5 to 1.0 wt% under FO mode using 1 mol/L sodium chloride (NaCl) solution as draw solution (DS). In addition, high osmotic pressure favored water permeation, and at the same concentration of DS, magnesium chloride (MgCl2) exhibited better properties than NaCl. These results all suggested that GO‐CS was a good modifier to fabricate FO membrane, and MgCl2 was a good DS candidate.

show abstract

“…The formula for calculating pure water flux ( J w ) and reverse salt flux ( J s ) is following the previous literature …”

Section: Methodsmentioning

confidence: 99%

Section: Characterization Of Go-cs Substrates and Membranesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Chitosan‐modified graphene oxide as a modifier for improving the structure and performance of forward osmosis membranes

Zhang

2019

Polymers for Advanced Techs

View full text Add to dashboard Cite

show abstract

“…Nasseri et al [27] synthesised and characterised a PSf/GO nanocomposite membrane under optimum conditions; this membrane eliminated up to 93% of bisphenol A from the water environment. PSf-TiO 2 /GO nanocomposite membranes were also prepared by Sirinupong et al [28] for forwarding osmosis applications.…”

Section: Introductionmentioning

confidence: 99%

One-Pot Preparation of Alumina-Modified Polysulfone-Graphene Oxide Nanocomposite Membrane for Separation of Emulsion-Oil from Wastewater

Nguyen

Truong

et al. 2020

Journal of Nanomaterials

View full text Add to dashboard Cite

In recent years, polysulfone-based nanocomposite membranes have been widely used for contaminated water treatment because they comprise properties such as high thermal stability and chemical resistance. In this study, a polysulfone (PSf) nanocomposite membrane was fabricated using the wet-phase inversion method with the fusion of graphene oxide (GO) and alumina (Al2O3) nanoparticles. We also showed that GO-Al2O3 nanoparticles were synthesised successfully by using a one-pot hydrothermal method. The nanocomposite membranes were characterised by Fourier transform infrared (FT-IR), scanning electron microscopy (SEM), nitrogen adsorption-desorption isotherms, energy-dispersive X-ray spectroscopy (EDX), thermogravimetric analysis (TGA), and water contact angle. The loading of GO and Al2O3 was investigated to improve the hydrophilic and oil rejection of the matrix membrane. It was shown that by using 1.5 wt.% GO-Al2O3 loaded in polysulfone, ~74% volume of oil was separated from the oil/water emulsion at 0.87 bar and 30 min. This figure was higher than that of the process using the unmodified membrane (PSf/GO) at the same conditions, in which only ~60% volume of oil was separated. The pH, oil/water emulsion concentration, separation time, and irreversible fouling coefficient (FRw) were also investigated. The obtained results suggested that the GO-Al2O3 nanoparticles loaded in the polysulfone membrane might have potential use in oily wastewater treatment applications.

show abstract

Thin‐film composite forward osmosis membrane prepared from polyvinyl chloride/cellulose carbamate substrate and its potential application in brackish water desalination

Zheng

Zhou

Cheng

et al. 2020

J of Applied Polymer Sci

View full text Add to dashboard Cite

Synthesized by the reaction between α-cellulose and m-tolyl isocyanate (MTI), cellulose carbamate (CC) was blended with polyvinyl chloride (PVC) to fabricate substrates for thin-film composite (TFC) forward osmosis (FO) membranes. The introduction of CC into substrates improved both membrane structure and performance. The substrates exhibited higher porosity and hydrophilicity, and better connective pore structure; while rejection layer exhibited better morphology but limited cross-linked degree decrease after the introduction of CC. According to the results, the CC blend ratio of 10% was the optimal ratio. With this blend ratio, the TFC-10 membrane presented favorable water permeability (1.86 LMH/bar) and structure parameter (337 μm), which resulted in excellent FO performance (water flux with a value of 40.40 LMH and specific salt flux with a value of 0.099 g/L under rejection layer faces draw solution [DS] mode when 1 M NaCl and deionized water were utilized as DS and feed solution). In addition, the TFC-10 membrane showed good water flux and low-sulfate ion leakage in the potential application of brackish water desalination.

show abstract

Synthesis and characterization of thin film composite membranes made of PSF-TiO2/GO nanocomposite substrate for forward osmosis applications

Cited by 84 publications

References 33 publications

Chitosan‐modified graphene oxide as a modifier for improving the structure and performance of forward osmosis membranes

Chitosan‐modified graphene oxide as a modifier for improving the structure and performance of forward osmosis membranes

One-Pot Preparation of Alumina-Modified Polysulfone-Graphene Oxide Nanocomposite Membrane for Separation of Emulsion-Oil from Wastewater

Thin‐film composite forward osmosis membrane prepared from polyvinyl chloride/cellulose carbamate substrate and its potential application in brackish water desalination

Contact Info

Product

Resources

About