Increased performance and antifouling of mixed-matrix membranes of cellulose acetate with hydrophilic nanoparticles of polydopamine-sulfobetaine methacrylate for oil-water separation

2020 ◽  
pp. 118881 ◽  
Author(s):  
Manuel Reyes De Guzman ◽  
Chester Kenneth A. Andra ◽  
Micah Belle Marie Yap Ang ◽  
Gian Vincent C. Dizon ◽  
Alvin R. Caparanga ◽  
...  
Keyword(s):  
Cellulose Acetate ◽  
Mixed Matrix Membranes ◽  
Mixed Matrix ◽  
Water Separation ◽  
Oil Water Separation ◽  
Oil Water ◽  
Matrix Membranes

Novel mixed matrix membranes incorporated with dual-nanofillers for enhanced oil-water separation

2017 ◽  
Vol 178 ◽  
pp. 113-121 ◽  
Author(s):  
G.S. Lai ◽  
M.H.M. Yusob ◽  
W.J. Lau ◽  
R. Jamshidi Gohari ◽  
D. Emadzadeh ◽  
...  
Keyword(s):  
Mixed Matrix Membranes ◽  
Mixed Matrix ◽  
Water Separation ◽  
Oil Water Separation ◽  
Oil Water ◽  
Matrix Membranes

Mitigating the fouling of mixed-matrix cellulose acetate membranes for oil–water separation through modification with polydopamine particles

2020 ◽  
Vol 159 ◽  
pp. 195-204 ◽  
Author(s):  
Micah Belle Marie Yap Ang ◽  
Charelle Rose M. Macni ◽  
Alvin R. Caparanga ◽  
Shu-Hsien Huang ◽  
Hui-An Tsai ◽  
...  
Keyword(s):  
Cellulose Acetate ◽  
Mixed Matrix ◽  
Water Separation ◽  
Cellulose Acetate Membranes ◽  
Oil Water Separation ◽  
Oil Water

scholarly journals Modifying Cellulose Acetate Mixed-Matrix Membranes for Improved Oil–Water Separation: Comparison between Sodium and Organo-Montmorillonite as Particle Additives

Membranes ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 80
Author(s):  
Micah Belle Marie Yap Ang ◽  
Kiara Pauline O. Devanadera ◽  
Alyssa Nicole R. Duena ◽  
Zheng-Yen Luo ◽  
Yu-Hsuan Chiao ◽  
...  
Keyword(s):  
Cellulose Acetate ◽  
Separation Efficiency ◽  
Pure Water ◽  
Mixed Matrix Membranes ◽  
Inversion Method ◽  
Mixed Matrix ◽  
Water Separation ◽  
Water Emulsion ◽  
Antifouling Property ◽  
Matrix Membranes

In this study, cellulose acetate (CA) mixed-matrix membranes were fabricated through the wet-phase inversion method. Two types of montmorillonite (MMT) nanoclay were embedded separately: sodium montmorillonite (Na-MMT) and organo-montmorillonite (O-MMT). Na-MMT was converted to O-MMT through ion exchange reaction using cationic surfactant (dialkyldimethyl ammonium chloride, DDAC). Attenuated total reflectance-Fourier transform infrared (ATR-FTIR) and X-ray photoelectron spectroscopy (XPS) compared the chemical structure and composition of the membranes. Embedding either Na-MMT and O-MMT did not change the crystallinity of the CA membrane, indicating that the nanoclays were dispersed in the CA matrix. Furthermore, nanoclays improved the membrane hydrophilicity. Compared with CANa-MMT membrane, CAO-MMT membrane had a higher separation efficiency and antifouling property. At the optimum concentration of O-MMT in the CA matrix, the pure water flux reaches up to 524.63 ± 48.96 L∙m−2∙h−1∙bar−1 with over 95% rejection for different oil-in-water emulsion (diesel, hexane, dodecane, and food-oil). Furthermore, the modified membrane delivered an excellent antifouling property.

Investigation of cellulose acetate/gamma‐cyclodextrin MOF based mixed matrix membranes for CO 2 /CH 4 gas separation

2021 ◽  
Vol 11 (2) ◽  
pp. 313-330
Author(s):  
Ovaid Mehmood ◽  
Sarah Farrukh ◽  
Arshad Hussain ◽  
Mohammad Younas ◽  
Zarrar Salahuddin ◽  
...  
Keyword(s):  
Cellulose Acetate ◽  
Gas Separation ◽  
Mixed Matrix Membranes ◽  
Mixed Matrix ◽  
Gamma Cyclodextrin ◽  
Matrix Membranes

Synthesis and gas permeation analysis of TiO2 nanotube-embedded cellulose acetate mixed matrix membranes

2019 ◽  
Vol 74 (3) ◽  
pp. 821-828 ◽  
Author(s):  
M. Hamza Rashid ◽  
Sarah Farrukh ◽  
Sofia Javed ◽  
Arshad Hussain ◽  
X. Fan ◽  
...  
Keyword(s):  
Cellulose Acetate ◽  
Gas Permeation ◽  
Tio2 Nanotube ◽  
Mixed Matrix Membranes ◽  
Mixed Matrix ◽  
Matrix Membranes

Microporous 3D aluminum MOF doped into chitosan‐based mixed matrix membranes for ethanol/water separation

2019 ◽  
Vol 66 (9) ◽  
pp. 1165-1171 ◽  
Author(s):  
Madhan Vinu ◽  
Souvik Pal ◽  
Jia‐Dian Chen ◽  
Yi‐Feng Lin ◽  
Yu‐Lun Lai ◽  
...  
Keyword(s):  
Mixed Matrix Membranes ◽  
Mixed Matrix ◽  
Water Separation ◽  
Matrix Membranes

scholarly journals Development of Janus Cellulose Acetate Fiber (CA) Membranes for Highly Efficient Oil–Water Separation

Materials ◽  
2021 ◽  
Vol 14 (20) ◽  
pp. 5916
Author(s):  
Xiaotian Yu ◽  
Xian Zhang ◽  
Yajie Xing ◽  
Hongjing Zhang ◽  
Wuwei Jiang ◽  
...  
Keyword(s):  
Cellulose Acetate ◽  
Water Mixture ◽  
Permeate Flux ◽  
Fiber Membrane ◽  
Water Separation ◽  
Water Emulsion ◽  
X Ray ◽  
Centrifugal Spinning ◽  
Oil Water Separation ◽  
Oil Water

A new type of Janus cellulose acetate (CA) fiber membrane was used to separate oil–water emulsions, which was prepared with plasma gas phase grafting by polymerizing octamethylcyclotetrasiloxane (D4) onto a CA fiber membrane prepared by centrifugal spinning. The Janus–CA fiber membrane was described in terms of chemical structure using Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS) analysis, energy dispersive X-ray spectroscopy (EDX) analysis and morphology by field emission scanning electron microscopy (FESEM). In this contribution, we examine the influence of spinning solution concentration, spinning speed and nozzle aperture on the centrifugal spinning process and the fiber morphology. Superhydrophobic/hydrophilic Janus–CA fiber membrane was used to separate water and 1,2-dibromoethane mixture and Toluene-in-water emulsion. Unidirectional water transfer Janus–CA fiber membrane was used to separate n-hexane and water mixture. The separation for the first-time interception rate was about 98.81%, 98.76% and 98.73%, respectively. Experimental results revealed that the Janus cellulose acetate (CA) fiber membrane gave a permeate flux of about 43.32, 331.72 and 275.27 L/(m2·h), respectively. The novel Janus–CA fiber membrane can potentially be used for sustainable W/O emulsion separation. We believe that this is a facile strategy for construction of filtration materials for practical oil–water separation.

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