Mechanical strength and ionic conductivity of polymer electrolyte membranes prepared from cellulose acetate-lithium perchlorate

Sudiarti, Tety; Wahyuningrum, Deana; Bundjali, Bunbun; Arcana, I Made

doi:10.1088/1757-899x/223/1/012052

Cited by 75 publications

(50 citation statements)

References 18 publications

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“…The wavenumber at 1159.9 cm −1 shows the presence of secondary amine in CC 6 [29]. Combination of -C-O stretching and -CH 2 -vibration is also observed at 904.4 cm −1 for both the membrane [28].…”

Section: Results and Discussion 31 Contact Angle Sem And Ftir Analysismentioning

confidence: 81%

“…The band near 1950, 1750 and 1650 cm −1 represents multiple bonded CO group, ester and C=C aromatic ring, respectively [29]. Characteristic band around 1431 cm −1 for both the membranes indicate the deformation vibration of -CH 2 [28]. Peak at 1051.37 cm −1 for CC 0 refers to primary alcohol which is shifted to 1038.1 cm −1 for CC 6 and that shows reduction in corresponding molecule [29].…”

Section: Results and Discussion 31 Contact Angle Sem And Ftir Analysismentioning

confidence: 95%

“…3. The broad band obtained at 3480 and 3475 cm −1 for CC 0 and CC 6 is hydroxyl group stretching [17,28,29]. Bend at wavenumber of 2944.7 cm −1 for CC 0 spectrum is attributed to stretching of -CH-of methyl groups (-CH 3 ), which was shifted to 2948.8 cm −1 for CC 6 membrane [30].…”

Section: Results and Discussion 31 Contact Angle Sem And Ftir Analysismentioning

confidence: 96%

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Phenol Removal by Novel Choline Chloride Blended Cellulose Acetate-Fly Ash Composite Membrane

Gupta

Chathurappan

Anandkumar

2019

Period. Polytech. Chem. Eng.

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A novel composite membrane (CM) was prepared by coating choline chloride (ChCl) blended cellulose acetate (CA) on fly-ash based ceramic substrate for phenol removal. Different amount (0-1 g) of ChCl was blended with CA to synthesize various CMs. Amount of ChCl in CA increases the contact angle, average pore radius, permeability of CM from 55.15° to 71.55°, 1.6 to 6.83 nm and 0.0057 to 0.0152 L·m−2·h−1·kPa−1, respectively. Phenol rejection increased from 56 to 93 % while increasing ChCl amount in CA. Phenol removal decreased from 94.26-64.23 % and 91.09-78.62 % with increase in applied pressure (69-483 kPa) and feed concentration (50-200 mg·L−1). However, removal rate increased from 80.46-92.47 % with increase in pH 2-12. Among all CMs, CC5 is identified as best CM with maximum phenol removal efficiency (92.7 %) and flux (1.86 L·m−2·h−1) at 207 kPa applied pressure and 100 mg·L−1 of feed phenol concentration. The obtained results reveal that blending of 0.9 % ChCl with CA can significantly enhances the phenol removal efficiency and this could be used as potential CM for treatment of phenol bearing wastewater.

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Section: Results and Discussion 31 Contact Angle Sem And Ftir Analysismentioning

confidence: 81%

Section: Results and Discussion 31 Contact Angle Sem And Ftir Analysismentioning

confidence: 95%

See 1 more Smart Citation

Phenol Removal by Novel Choline Chloride Blended Cellulose Acetate-Fly Ash Composite Membrane

Gupta

Chathurappan

Anandkumar

2019

Period. Polytech. Chem. Eng.

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“…2. Characteristic peaks are observed at 3471 cm −1 (stretching of intermolecular OH and hydroxyl groups) 40–42 , 2928 cm −1 (C-H stretching vibration) 40 , 1752 cm −1 (carbonyl group (C=O) stretching vibration – characteristic of pure cellulose acetate) 42 , 1633 cm −1 (Zn-O stretching vibration) 41 , 1431 cm −1 (–CH 2 - deformation vibration for pure CA) 43 , 1374 cm −1 (C=O asymmetric vibration 40 , 1237 cm −1 (‘C-O-C’ anti symmetric stretching vibrations of ester group -CA) 43 , 1051 cm −1 (C-O stretching vibration), 899 cm −1 (formation of tetrahedral coordination of Zn), 709 to 603 cm −1 due to the stretching vibrations of ZnO nanoparticles 40 and 427 cm −1 in response of Zn–O stretching vibration 42,44 . The typical superposition of peaks associated to samples prepared in the presence and absence of silver nanoparticles confirms the very close proximity of peaks of silver and zinc acetate, reported in the literature 44 .…”

Section: Resultsmentioning

confidence: 99%

UV random laser emission from flexible ZnO-Ag-enriched electrospun cellulose acetate fiber matrix

Silva-Neto

Oliveira

Dominguez

et al. 2019

Sci Rep

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We report an alternative random laser (RL) architecture based on a flexible and ZnO-enriched cellulose acetate (CA) fiber matrix prepared by electrospinning. The electrospun fibers, mechanically reinforced by polyethylene oxide and impregnated with zinc oxide powder, were applied as an adsorbent surface to incorporate plasmonic centers (silver nanoprisms). The resulting structures – prepared in the absence (CA-ZnO) and in the presence of silver nanoparticles (CA-ZnO-Ag) - were developed to support light excitation, guiding and scattering prototypes of a RL. Both materials were excited by a pulsed (5 Hz, 5 ns) source at 355 nm and their fluorescence emission monitored at 387 nm. The results suggest that the addition of silver nanoprisms to the ZnO- enriched fiber matrix allows large improvement of the RL performance due to the plasmon resonance of the silver nanoprisms, with ~80% reduction in threshold energy. Besides the intensity and spectral analysis, the RL characterization included its spectral and intensity angular dependences. Bending the flexible RL did not affect the spectral characteristics of the device. No degradation was observed in the random laser emission for more than 10,000 shots of the pump laser.

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“…Another peak associated with CA that was observed in the 80/20 film was detected at 1240 cm -1 and relates to the C-O-C antisymmetric stretching vibrations of the CA ester groups. Even though the presence of CA was evident, one of the most important peaks of PVA (1090 cm -1 ), the C-O stretching of acetyl groups from the PVA back-bone, remained [16][17][18]. The films' flexibility and mechanical resistance were studied via elongation at break and tensile strength examinations, while the porosity and hydration capacity were determined based on the weight and dimension of the films before and after drying.…”

Section: Pva/ca Films Characterizationmentioning

confidence: 99%

New method to produce poly(vinyl alcohol)/cellulose acetate films with improved antibacterial action

Felgueiras

Teixeira

Tavares

et al. 2020

Materials Today: Proceedings

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New alternatives to the conventional wound dressings are being engineered. Here, we propose the processing of two biodegradable polymers, poly(vinyl alcohol) (PVA) and cellulose acetate (CA), in the form of films via a new method that combines principles of solvent casting and phase-inversion. Highly flexible and mechanically resistant films were obtained. PVA/CA films were then treated with the antibiotic vancomycin via two methods, blending and physisorption (via dopamine). Immobilization of vancomycin was proven efficient in promoting the films' antibacterial action against Staphylococcus epidermidis bacteria. Data demonstrates the potentialities of PVA/CA films for prospective wound healing applications.

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Mechanical strength and ionic conductivity of polymer electrolyte membranes prepared from cellulose acetate-lithium perchlorate

Cited by 75 publications

References 18 publications

Phenol Removal by Novel Choline Chloride Blended Cellulose Acetate-Fly Ash Composite Membrane

Phenol Removal by Novel Choline Chloride Blended Cellulose Acetate-Fly Ash Composite Membrane

UV random laser emission from flexible ZnO-Ag-enriched electrospun cellulose acetate fiber matrix

New method to produce poly(vinyl alcohol)/cellulose acetate films with improved antibacterial action

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