Enhancement of separation performance of nano hybrid PES –TiO2 membrane using three combination effects of ultraviolet irradiation, ethanol-acetone immersion, and thermal annealing process for CO2 removal

Kusworo, Tutuk Djoko; Qudratun,; Utomo, Dani Puji; Indriyanti,; Ramadhan, Iqbal Ryan

doi:10.1016/j.jece.2018.04.023

Cited by 14 publications

(2 citation statements)

References 28 publications

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“…Silica membranes have the potential to be applied at industrial stage due to their high selectivity, optimum temperature stability, and their low cost. As a general rule, membranes based on silicon dioxide obtained by chemical vapour deposition or chemical vapour phase impregnation have an H 2 /CO 2 selectivity of up to 50, which is significantly higher than the Knudsen values [37,38].…”

Section: Membranesmentioning

confidence: 96%

“…Progress in improving membrane output with this hybrid theory is an idea for gas separation and morphological investigations of prevailing asymmetric and composite slim membranes [96][97][98]. Kusworo et al [37] proposed the mix of UV illumination, thermal annealing, and ethanol-CH 3 ) 2 CO to improve the exhibition of PES-TiO 2 nanohybrid membrane for carbon capture.…”

Section: Hybrid Nanocomposite-doped Membranementioning

confidence: 99%

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Advances in the Use of Nanocomposite Membranes for Carbon Capture Operations

Okoro

Josephs

Sanni

et al. 2021

International Journal of Chemical Engineering

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The adoption of nanodoped membranes in the areas of gas stream separation, water, and wastewater treatments due to the physical and operational advantages of such membranes has significantly increased. The literature has shown that the surface structure and physicochemical properties of nanodoped membranes contribute significantly to the interaction and rejection characteristics when compared to bare membranes. This study reviews the recent developments on nanodoped membranes, and their hybrids for carbon capture and gas separation operations. Features such as the nanoparticles/materials and hybrids used for membrane doping and the effect of physicochemical properties and water vapour in nanodoped membrane performance for carbon capture are discussed. The highlights of this review show that nanodoped membrane is a facile modification technique which improves the membrane performance in most cases and holds a great potential for carbon capture. Membrane module design and material, thickness, structure, and configuration were identified as key factors that contribute directly, to nanodoped membrane performance. This study also affirms that the three core parameters satisfied before turning a microporous material into a membrane are as follows: high permeability and selectivity, ease of fabrication, and robust structure. From the findings, it is also observed that the application of smart models and knowledge-based systems have not been extensively studied in nanoparticle-/material-doped membranes. More studies are encouraged because technical improvements are needed in order to achieve high performance of carbon capture using nanodoped membranes, as well as improving their durability, permeability, and selectivity of the membrane.

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Section: Membranesmentioning

confidence: 96%

Section: Hybrid Nanocomposite-doped Membranementioning

confidence: 99%

Advances in the Use of Nanocomposite Membranes for Carbon Capture Operations

Okoro

Josephs

Sanni

et al. 2021

International Journal of Chemical Engineering

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Modification and ionic stimulation of hollow fiber membrane by electric field for water treatment

Abouelata

Abdallah

Sorour

et al. 2020

J of Applied Polymer Sci

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Hollow fiber membrane (HF) is considered one of the prevalent materials for water treatment; its effectiveness is controlled by permeation and mechanical characteristics. In this study, HF membrane surface was stimulated using electrochemical technique, where binary system of stainless steel cylinder and graphite rod electrodes was used into electrolytic solution of sodium acetate 0.1 M as electrolyte. Two pH of acidic medium (pH = 3.5) and alkaline medium (pH = 8.5) were prepared and different potential between 2 and 10 V were applied. EDX analysis of HF membrane surface revealed the formation of sodium ions on the surface of HF membrane with maximum content of Na+ ions 1.84%. Also, HF membrane surface showed variation of roughness (R a) as, HF membrane surface may undergo distortion by using aggressive conditions of high electric potential (7.5–10 V), The measured raw HF membrane (R a) was 34.8 nm, while, after electrochemical modification in alkaline medium R a showed higher values 36, 37, and 41 nm using 2, 2.5, and 5 V, respectively. While, after electrochemical modification in acidic medium (R a) showed 35, 39, 42, 49, 52 nm for 2, 2.5, 5, 7.5, and 10 V, respectively. Moreover, tensile strength Young's modulus, break stress and break strain were measured after electrochemical modification in both acidic and alkaline mediums and maximum porosity value 76.84% was observed after 30 min in acidic medium.

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