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

Chemosphere ◽  
2015 ◽  
Vol 136 ◽  
pp. 204-210 ◽  
Author(s):  
Hyeon-gyu Choi ◽  
Moon Son ◽  
SangHyeon Yoon ◽  
Evrim Celik ◽  
Seoktae Kang ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Cellulose Acetate ◽  
Forward Osmosis ◽  
Cellulose Acetate Membrane ◽  
Functionalized Carbon Nanotube ◽  
Fouling Reduction

Efficacy of synthesis conditions on functionalized carbon nanotube blended cellulose acetate membrane for desalination

2015 ◽  
Vol 57 (16) ◽  
pp. 7545-7554 ◽  
Author(s):  
Hyeon-gyu Choi ◽  
Sang Hyeon Yoon ◽  
Moon Son ◽  
Evrim Celik ◽  
Hosik Park ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Cellulose Acetate ◽  
Cellulose Acetate Membrane ◽  
Synthesis Conditions ◽  
Functionalized Carbon Nanotube

scholarly journals Direct Writing Supercapacitors Using a Carbon Nanotube/Ag Nanoparticle-Based Ink on Cellulose Acetate Membrane Paper

Polymers ◽  
2019 ◽  
Vol 11 (6) ◽  
pp. 973 ◽  
Author(s):  
Xipeng Guan ◽  
Lin Cao ◽  
Qin Huang ◽  
Debin Kong ◽  
Peng Zhang ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Cellulose Acetate ◽  
Cost Effective ◽  
Cellulose Acetate Membrane ◽  
Direct Writing ◽  
Ag Nanoparticle ◽  
Ag Electrodes ◽  
Potential Applications ◽  
Areal Capacity

In this work, we present a cellulose acetate membrane flexible supercapacitor prepared through a direct writing method. A carbon nanotube (CNT) and silver (Ag) nanoparticle were prepared into ink for direct writing. The composite electrode displayed excellent electrochemical and mechanical electrochemical performance. Furthermore, the CNT-Ag displayed the highest areal capacity of 72.8 F/cm3. The assembled device delivered a high areal capacity (17.68 F/cm3) at a current density of 0.5 mA/cm2, a high areal energy (9.08–5.87 mWh/cm3) at a power density of 1.18–0.22 W/cm3, and showed no significant decrease in performance with a bending angle of 180°. The as-fabricated CNT/Ag electrodes exhibited good long-term cycling stability after 1000 time cycles with 75.92% capacitance retention. The direct writing was a simple, cost-effective, fast, and non-contact deposition method. This method has been used in current printed electronic devices and has potential applications in energy storage.

Effect of the structure of cellulose acetate membranes on their permeability, electrical conductivity and rejection

1990 ◽  
Vol 55 (12) ◽  
pp. 2933-2939 ◽  
Author(s):  
Hans-Hartmut Schwarz ◽  
Vlastimil Kůdela ◽  
Klaus Richau
Keyword(s):  
Electrical Conductivity ◽  
Electrical Properties ◽  
Cellulose Acetate ◽  
Reverse Osmosis ◽  
Water Flux ◽  
Cellulose Acetate Membrane ◽  
Structure Parameters ◽  
Dc Electrical Conductivity ◽  
Cellulose Acetate Membranes

Ultrafiltration cellulose acetate membrane can be transformed by annealing into reverse osmosis membranes (RO type). Annealing brings about changes in structural properties of the membranes, accompanied by changes in their permeability behaviour and electrical properties. Correlations between structure parameters and electrochemical properties are shown for the temperature range 20-90 °C. Relations have been derived which explain the role played by the dc electrical conductivity in the characterization of rejection ability of the membranes in the reverse osmosis, i.e. rRO = (1 + exp (A-B))-1, where exp A and exp B are statistically significant correlation functions of electrical conductivity and salt permeation, or of electrical conductivity and water flux through the membrane, respectively.

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