Thin film composite membranes: Preparation, characterization, and application towards copper ion removal

Shaari, Norin Zamiah Kassim; Sulaiman, Nurul Aida; Rahman, Norazah Abd

doi:10.1016/j.jece.2018.102845

Cited by 12 publications

(4 citation statements)

References 31 publications

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“…As a catalyst, 1 mL of HCl 37% was added. The formulations of each membrane are shown in Table 1 [15,20]. Fig.…”

Section: Cross-linking Process Of Pva/cs Solutionmentioning

confidence: 99%

“…For approximately 6 h, the solution was heated at 60 °C and stirred at 400 rpm. The solution was left at room temperature before the membrane solution was prepared [15].…”

Section: Polysulfone (Psf) Solution Preparationmentioning

confidence: 99%

“…Previously, researchers investigated the use of tetraethylorthosilicate as a cross-linker in a composite hybrid membrane with polysulfone membrane as the support membrane. Results from antifouling evaluation revealed that the membranes exhibited good antifouling behavior with the use of humic acid as the foulant model with the additional advantage of high thermally stable and high adsorption towards heavy metal [15].…”

Section: ■ Introductionmentioning

confidence: 99%

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Integral Membrane Properties of Polysulfone/Chitosan/Polyvinyl Alcohol Blend Incorporated with Rice Husk Ash Silica Gel

Chik

Shaari

2023

Indones. J. Chem.

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In this study, silica gel was extracted from rice husk ash using a modified acid-leaching process. The gel was then characterized using an X-ray Diffractometer (XRD) and an X-ray Fluorescence (XRF). At different loadings of 0, 0.05 and 0.10 wt.%, silica gel was used as a cross-linker in the membrane formulation. Fourier Transform Infrared Spectroscopy (FTIR) and Scanning Electron Microscopy (SEM) were used to characterize the membranes, while their performance was determined by pure water flux. XRD and XRF results revealed that the gel contained 76.85% silica. The presence of silica gel in membranes results in optimal water flux, indicating that the membranes have achieved good integral stability via the cross-linking process. Based on these positive findings, the applications of the membranes in the water-oil separation process will be evaluated in future work.

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“…As a catalyst, 1 mL of HCl 37% was added. The formulations of each membrane are shown in Table 1 [15,20]. Fig.…”

Section: Cross-linking Process Of Pva/cs Solutionmentioning

confidence: 99%

“…For approximately 6 h, the solution was heated at 60 °C and stirred at 400 rpm. The solution was left at room temperature before the membrane solution was prepared [15].…”

Section: Polysulfone (Psf) Solution Preparationmentioning

confidence: 99%

Section: ■ Introductionmentioning

confidence: 99%

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Integral Membrane Properties of Polysulfone/Chitosan/Polyvinyl Alcohol Blend Incorporated with Rice Husk Ash Silica Gel

Chik

Shaari

2023

Indones. J. Chem.

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“…This is due to its advantageous characteristics of good strength, firm support material, temperature tolerances, porous nature and high dimensional stability to be fabricated into membranes in various conditions for UF [3]. The asymmetric UF membrane can be simply prepared using phase inversion method [4]. Hyper selectivity and permeability are controlled by the surface layer of the membrane.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Characterization of Polysulfone Composite Membrane Blended with Kenaf Cellulose Fibrils

Mokhtar¹,

Ayob²,

Tholibon³

et al. 2023

ARASET

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Polysulfone (PSF) is widely used material for ultrafiltration (UF) membranes, which has outstanding mechanical properties, great chemical resistance, good thermal stability and wide pH operation range. The hydrophobic property of the PSF membrane seriously limits its application. Hence, blending with hydrophilic material as additives such as cellulose have been intensively studied to improve the hydrophilicity of membranes. Cellulose fibrils are composed of nano-sized elements, which have high hydrophilicity, strength, and biodegradation. A composite membrane was prepared by the phase inversion induced by an immersion process. The characteristics of the composite membrane were investigated with Fourier transform infrared spectroscopy (FTIR) and Scanning Electron Microscopic (SEM). The pure water flux of the composite membrane increased dramatically with the increase of cellulose fibrils. Mean pore size and porosity were significantly increased. Both mechanical properties and hydrophilicity were enhanced due to the addition of the cellulose fibrils.

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Incorporation of amino‐functionalized ZnO nanoparticles into polycarbonate/polyvinyl alcohol thin‐film membrane for enhanced water treatment

Etemadi

Khezraqa

Hermani

2022

Polymer Engineering & Sci

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ZnO nanoparticles were functionalized with amine groups and incorporated into a thin-film nanocomposite (TFN) membrane. Polycarbonate (PC) membranes were coated with polyvinyl alcohol (PVA)/ZnO-NH 2 solution using the dip-coating method. All prepared membranes were applied for the removal of humic acid (HA) in a submerged membrane system at vacuum transmembrane pressure (TMP) of 0.3 and 0.6 bar. Attenuated total reflectance-Fourier transform infrared (ATR-FTIR) and field-emission scanning electron microscopy (FESEM) images confirmed the formation of PVA/ZnO-NH 2 top layer on the PC support membrane. The addition of nanoparticles caused the hydrophilicity and surface roughness of TFN membranes to increase. HA filtration experiments revealed that at lower vacuum TMP, the TFN with 0.05 wt.% of ZnO-NH 2 nanoparticles showed higher permeate flux. However, at higher vacuum TMP permeate flux significantly decreased. HA rejection did not change with added nanoparticles. As a final result, when vacuum TMP increased from 0.3 to 0.6 bar, rejection of HA slightly increased from 98.3% to 99.1% and 98.3% to 99.3% for thin film composite and TFN with 0.05 wt.% of nanoparticles, respectively.

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Thin film composite membranes: Preparation, characterization, and application towards copper ion removal

Cited by 12 publications

References 31 publications

Integral Membrane Properties of Polysulfone/Chitosan/Polyvinyl Alcohol Blend Incorporated with Rice Husk Ash Silica Gel

Integral Membrane Properties of Polysulfone/Chitosan/Polyvinyl Alcohol Blend Incorporated with Rice Husk Ash Silica Gel

Preparation and Characterization of Polysulfone Composite Membrane Blended with Kenaf Cellulose Fibrils

Incorporation of amino‐functionalized ZnO nanoparticles into polycarbonate/polyvinyl alcohol thin‐film membrane for enhanced water treatment

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