Alginate fouling reduction of functionalized carbon nanotube blended cellulose acetate membrane in forward osmosis

Fabrication of cellulose acetate/polybenzoxazine cross-linked electrospun nanofibrous membrane for water treatment

“…However, their thermal and mechanical properties need to be enhanced for the application especially in harsh conditions. Although, several attempts have been done to enhance the filtration efficiency (membrane surface hydrophilicity, water permeability, fouling resistance, etc) of cellulose acetate membranes by blending with other polymers (Sun & Chen, 2016;Ahmad et al, 2016;Yin et al, 2016;Razzaghi, Safekordi, Tavakolmoghadam, Rekabdar & Hemmati, 2014;Shenvi, Ismail & Isloor, 2014;Radha, Shobana, Tarun & Mohan, 2014;Kumari, Sarkhel & Choudhury, 2013), nanoparticles (Arthanareeswaran, Devi & Raajenthiren, 2008;Goh, Ng, Lau & Ismail, 2015), grapheneoxide (Safarpour, Khataee & Vatanpour, 2015;Hegab & Zou, 2015;Chae et al, 2015), carbon nanotubes (Sabir et al, 2015;El Badawi, Ramadan, Esawi & El-Morsi, 2014;Choi et al, 2015) and epoxy resins (Mahendran, Malaisamy & Mohan, 2004;Mahendran, Malaisamy & Mohan, 2002), a few studies were reported to show enhancement of thermal stability or/and mechanical properties of cellulose acetate membranes (Persson, Gekas & Trägårdh, 1995;Ebert, Fritsch, Koll & Tjahjawiguna, 2004;Corobea et al, 2016;Huang, Li, Liu & Zhang, 2015;El-Din, El-Gendi, Ismail, Abed & Ahmed, 2015;Ahmad et al, 2015;Dasgupta et al, 2014;Abedini et al, 2011). In these studies, inorganic nanomaterials or carbon nanotubes were used as a nanofiller for the enhancement of thermal/mechanical properties.…”

Anti-biofouling effect of a thin film nanocomposite membrane with a functionalized-carbon-nanotube-blended polymeric support for the pressure-retarded osmosis process

“…With the increase in the concentration of fCNTs deposited on the bottom surface of support layer, the hydrophilicity of the bottom surface of the membrane increased due to presence of hydroxyl and carboxylic groups. 14,16,28 In addition, wettability is directly associated to the change in the microstructure, and the good dispersion of fCNTs could increase hydrophilicity 34 fCNTs were well dispersed on the bottom surface of the support layer at a concentration of 0.5 wt% and led to high hydrophilicity. The further increase in the fCNT concentration (1 wt% and 2 wt%) led to the aggregation of fCNTs on the membrane and decrease in their dispersion in the support layer.…”

“…These property changes can improve the membrane performance, such as the water ux, thermal stability, mechanical stability, and antifouling. [14][15][16] In addition, studies have reported the potential antimicrobial effect of CNTs. [17][18][19][20] Antimicrobial mechanisms are hypothesized to occur via oxidative stress, physical cell damage, and intracellular metabolic pathway disruption.…”

Facile Synthesis of Cellulose Acetate Ultrafiltration Membrane with Stimuli‐Responsiveness to pH and Temperature Using the Additive of F127‐b‐PDMAEMA

“…[6] Sabir and coworkers prepared matrix composite membrane of cellulose acetate and polyethylene glycol doped with fumed silica particles, and found that doping of fumed silica particles led to increment in thermal stability of polymer matrix membrane. For example, Choi and coworkers functionalized cellulose acetate with carbon nanotube and found that the hydrophilicity and water permeated flux of the functionalized membrane increased.…”