Fabrication and evaluation of multilevel Janus-imprinted nanocomposite membranes through a connective method of dip-coating and delayed phase inversion for simultaneous adsorption and separation of Tetrabromobisphenol A and cadmium ion

2021 ◽  
pp. 131610
Author(s):  
Chao Yu ◽  
Jianping Song ◽  
Zhongfei Ma ◽  
Jian Lu ◽  
Wendong Xing ◽  
...  
Keyword(s):  
Phase Inversion ◽  
Dip Coating ◽  
Tetrabromobisphenol A ◽  
Nanocomposite Membranes ◽  
Cadmium Ion ◽  
Simultaneous Adsorption ◽  
Delayed Phase

Influence of Content and Treatment of Clay in the Morphology of PES Membranes

2016 ◽  
Vol 869 ◽  
pp. 824-829 ◽  
Author(s):  
Vanessa Nóbrega Medeiros ◽  
Thamyres Cardoso de Carvalho ◽  
Amanda Melissa Damião Leite ◽  
Edcleide Maria Araújo ◽  
Renê Anísio da Paz ◽  
...  
Keyword(s):  
Cross Section ◽  
Flow Measurement ◽  
Phase Inversion ◽  
Polymeric Membranes ◽  
Nanocomposite Membranes ◽  
Sem Images ◽  
Porous Support ◽  
Phase Inversion Technique ◽  
Basal Distance ◽  
Over Time

Polymeric membranes were produced from the nanocomposites of polyethersulfone and clay (untreated-MMT and treatment-OMMT), by phase inversion technique, in the proportions of 3 and 5% w/w, using as the solvent N, N dimethylformamide (DMF). From XRD results it was noted a change in the structure of the MMT by organophilization process with increase of the interplanar basal distance. To the membranes it was observed an exfoliated and/or partially exfoliated structure. From SEM images the nanocomposite membranes showed a surface apparently exempt of pores, however in the cross-section images shows an anisotropic structure, where the skin is dense and the porous support displays macrovoids. By the flow measurement, it was found that the compositions presented the same tendency in the flow lines, where the flow is high on the beginning and drops over time; and the inclusion of clay increases the flow, especially to the membranes with MMT 5%.

Preparation, structure and properties of nanocomposite membranes prepared by phase inversion

Polimery ◽  
2019 ◽  
Vol 64 (03) ◽  
pp. 173-180
Author(s):  
Michal Adamczak ◽  
Gabriela Kaminska ◽  
Jolanta Bohdziewicz
Keyword(s):  
Phase Inversion ◽  
Structure And Properties ◽  
Nanocomposite Membranes

Anode-supported micro-tubular SOFCs fabricated by a phase-inversion and dip-coating process

2011 ◽  
Vol 36 (9) ◽  
pp. 5604-5610 ◽  
Author(s):  
Changcheng Chen ◽  
Mingfei Liu ◽  
Lei Yang ◽  
Meilin Liu
Keyword(s):  
Phase Inversion ◽  
Dip Coating ◽  
Coating Process

Properties of Polysulfone/Halloysite Nanocomposite Membranes: Prepared by Phase Inversion Method

2016 ◽  
Vol 361 (1) ◽  
pp. 11-19 ◽  
Author(s):  
Swapna V.P. ◽  
Saranya E.P. ◽  
Nithya A.B. ◽  
Sabu Thomas ◽  
Ranimol Stephen
Keyword(s):  
Phase Inversion ◽  
Inversion Method ◽  
Nanocomposite Membranes ◽  
Phase Inversion Method

Study of Morphology Membrane of Polymeric Nanocomposites Obtained by Phases Inversion

2014 ◽  
Vol 775-776 ◽  
pp. 498-503 ◽  
Author(s):  
Keila Machado Medeiros ◽  
Taciana Regina de Gouveia Silva ◽  
Dayanne Diniz Souza Morais ◽  
Luana Rodrigues Kojuch ◽  
Edcleide Maria Araújo ◽  
...  
Keyword(s):  
Polymer Nanocomposites ◽  
Phase Inversion ◽  
Structural Modification ◽  
Bentonite Clay ◽  
Polymeric Nanocomposites ◽  
X Ray Diffraction ◽  
Nanocomposite Membranes ◽  
Scanning Calorimetry ◽  
Selective Layer ◽  
X Ray

In this work, were obtained nanocomposite membranes polyamide66/Paraíba bentonite clay, treated with a quaternary ammonium salt in order to make it organophilic. The membranes were prepared as thin films using the technique of phase inversion from the nanocomposites obtained by solution. The membranes were characterized by X-ray diffraction (XRD), differential scanning calorimetry (DSC), thermogravimetry (TG) and scanning electron microscopy (SEM). By means of X-ray diffractogram, it was revealed that the membranes remained organically treated clay presented exfoliated and/or partially exfoliated structure. From curves of DSC and TG, it was observed that membrane of PA66 with 3% w/w of with treatment clay showed higher thermal stability compared with the same content of clay without treatment. From the SEM photomicrographs, there was a selective layer (skin filter) on top and one porous layer at the bottom of all membranes studied. Moreover, it was verified that the presence of clay provided a significant structural modification in the membranes of polymer nanocomposites.

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