Preparation of Hybrid Organosilica Reverse Osmosis Membranes by Interfacial Polymerization of Bis[(trialkoxysilyl)propyl]amine

2018 ◽  
Vol 47 (9) ◽  
pp. 1210-1212 ◽  
Author(s):  
Feng-Tao Zheng ◽  
Kazuki Yamamoto ◽  
Masakoto Kanezashi ◽  
Takahiro Gunji ◽  
Toshinori Tsuru ◽  
...  
Keyword(s):  
Reverse Osmosis ◽  
Interfacial Polymerization ◽  
Reverse Osmosis Membranes

Thin film composite reverse osmosis membranes prepared via layered interfacial polymerization

2017 ◽  
Vol 527 ◽  
pp. 121-128 ◽  
Author(s):  
Wansuk Choi ◽  
Sungkwon Jeon ◽  
Soon Jin Kwon ◽  
Hosik Park ◽  
You-In Park ◽  
...  
Keyword(s):  
Thin Film ◽  
Reverse Osmosis ◽  
Interfacial Polymerization ◽  
Film Composite ◽  
Thin Film Composite ◽  
Reverse Osmosis Membranes

scholarly journals Development of high-performance mixed matrix reverse osmosis membranes by incorporating aminosilane-modified hydrotalcite

RSC Advances ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 5648-5655
Author(s):  
Xinxia Tian ◽  
Zhen Cao ◽  
Jian Wang ◽  
Jiangrong Chen ◽  
Yangyang Wei
Keyword(s):  
Thin Film ◽  
Aqueous Solution ◽  
Reverse Osmosis ◽  
High Performance ◽  
Interfacial Polymerization ◽  
Polymerization Process ◽  
Mixed Matrix ◽  
Thin Film Nanocomposite ◽  
Reverse Osmosis Membranes

Thin film nanocomposite reverse osmosis membranes were prepared by dispersing 3-aminopropyltriethoxysilane modified hydrotalcite in aqueous solution and incorporating the nanoparticles in polyamide layer during interfacial polymerization process.

Separation of Acetic Acid and Water Using Reverse Osmosis Membranes

2020 ◽  
Vol 24 (1) ◽  
Author(s):  
Nora Jullok ◽  
Boo Chie Hang
Keyword(s):  
Acetic Acid ◽  
Reverse Osmosis ◽  
Interfacial Polymerization ◽  
Polymer Concentration ◽  
Water Flux ◽  
Porous Support ◽  
Water Permeation ◽  
Membrane Matrix ◽  
Membrane Porosity ◽  
Reverse Osmosis Membranes

Reverse osmosis can potentially be used for separation of acetic acid from waste stream. However, the investigation on the separation of this binary mixture utilizing reverse osmosis is scarce. Thus, this study aims to evaluate the feasibility of lab-synthesized and commercially available reverse osmosis membranes to separate low acetic acid concentration from aqueous mixture. A commercially available AG membrane and three laboratory synthesized polysulfone (PSf) membranes were used in this work. Initial test for water permeation using dead end filtration found that 17.5 wt% PSf has the highest water permeability. As the polymer concentration decreases, the membrane porosity increases which decreases the resistance which enables the penetration of the permeant more easily through the membrane matrix resulting in higher water permeation when 17.5wt% PSf was used. Further modification by interfacial polymerization to form a thin polyamide layer on the porous support was seen to have had improved the membrane affinity towards water resulted in increased of permeation through the membrane matrix. However, the rejection was lower than that of the AG membrane. This indicates that, the increase in water permeation when 17.5wt%PSf was used is due to the high membrane porosity. This is evidence since 17.5wt%PSf has the highest water flux but lower acetic acid rejection compared to the commercial AG membrane. Low rejection of acetic acid when reverse osmosis membrane was applied indicates that other factor such as Donnan effect has to be further considered when synthesizing the membrane.

Plasticizer-assisted interfacial polymerization for fabricating advanced reverse osmosis membranes

2021 ◽  
Vol 619 ◽  
pp. 118788
Author(s):  
Yitian Qin ◽  
Zhihao Zhu ◽  
Guodong Kang ◽  
Haijun Yu ◽  
Yiming Cao
Keyword(s):  
Reverse Osmosis ◽  
Interfacial Polymerization ◽  
Reverse Osmosis Membranes
Sign in / Sign up

Export Citation Format

Share Document