Synthesis and characterization of polysulfone/graphene oxide nano-composite membranes for removal of bisphenol A from water

2018 ◽  
Vol 205 ◽  
pp. 174-182 ◽  
Author(s):  
Simin Nasseri ◽  
Shima Ebrahimi ◽  
Mehrnoosh Abtahi ◽  
Reza Saeedi
Keyword(s):  
Graphene Oxide ◽  
Bisphenol A ◽  
Composite Membranes ◽  
Synthesis And Characterization ◽  
Nano Composite

Synthesis and Characterization of Branched Sulfonated Poly(ether Sulfone-Ketone) Copolymer and Organic-Inorganic Nano Composite Membranes

2007 ◽  
Vol 534-536 ◽  
pp. 121-124
Author(s):  
Dong Hoon Lee ◽  
Hye Suk Park ◽  
Dong Wan Seo ◽  
Tae Whan Hong ◽  
Soon Chul Ur ◽  
...  
Keyword(s):  
Bisphenol A ◽  
Composite Membranes ◽  
Sio2 Nanoparticles ◽  
Scanning Calorimetry ◽  
Nano Composite ◽  
Branched Copolymers ◽  
Branched Copolymer ◽  
20 Nm ◽  
Sulfonated Poly

Branched sulfonated poly(ether sulfone-ketone) copolymer was prepared with bisphenol A, 4,4-difluorobenzophenone, sulfonated chlorophenyl sulfone (40mole% of bisphenol A) and THPE (1,1,1-tris-p-hydroxyphenylethane) as a branching agent. THPE was used 0.4 mol% of bisphenol A to synthesize branched copolymers. Organic-inorganic nano composite membranes were prepared with copolymer and a series of SiO2 nanoparticles (20 nm, 4, 7 and 10 wt%). The composite membranes were cast from dimethylsulfoxide solutions. The films were converted from the salt to acid forms with dilute hydrochloric acid. The membranes were studied by differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). Sorption experiments were conducted to observe the interaction of sulfonated polymers with water and methanol. Branched copolymer and nano composite membranes exhibited proton conductivities from 1.12x10-3 to 6.04x10-3 S/cm2, water uptake from 52.9 to 62.4%, IEC from 0.81 to 1.21 meq/g and methanol diffusion coefficients from 1.2x10-7 to 1.5x10-7 cm2/S.

Synthesis and characterization of reduced graphene oxide by cobalt oxide composite electrode

2020 ◽  
Author(s):  
S. Veeresh ◽  
H. Ganesh ◽  
Y. S. Nagaraj ◽  
M. Vandana ◽  
S. P. Ashokkumar ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Cobalt Oxide ◽  
Composite Electrode ◽  
Synthesis And Characterization ◽  
Oxide Composite ◽  
Reduced Graphene
Sign in / Sign up

Export Citation Format

Share Document