scholarly journals Advantages, limitations, and future suggestions in studying graphene-based desalination membranes

RSC Advances ◽  
2021 ◽  
Vol 11 (14) ◽  
pp. 7981-8002
Author(s):  
Stefania Castelletto ◽  
Alberto Boretti
Keyword(s):  
Water Permeability ◽  
High Selectivity ◽  
Carbon Materials ◽  
Physical Stability ◽  
High Water ◽  
High Salt ◽  
High Chemical ◽  
Salt Rejection ◽  
Monovalent Ions

The potential advantages of novel 2D carbon materials are high water permeability, high selectivity capable of rejecting monovalent ions, with high salt rejection, reduced fouling, and high chemical and physical stability.

scholarly journals Synthesis of graphene oxide/polyimide mixed matrix membranes for desalination

RSC Advances ◽  
2017 ◽  
Vol 7 (4) ◽  
pp. 2211-2217 ◽  
Author(s):  
Bo Feng ◽  
Kai Xu ◽  
Aisheng Huang
Keyword(s):  
Graphene Oxide ◽  
Water Flux ◽  
High Water ◽  
High Salt ◽  
Mixed Matrix Membranes ◽  
Mixed Matrix ◽  
Salt Rejection ◽  
Matrix Membranes

Graphene oxide (GO) was incorporated into polyimide (PI) to fabricate GO/PI mixed matrix membranes (MMMs), which show a high water flux (36.1 kg m−2 h−1) and a high salt rejection (99.9%) for desalination of 3.5 wt% seawater at 90 °C.

Pervaporative seawater desalination using NaA zeolite membrane: Mechanisms of high water flux and high salt rejection

2011 ◽  
Vol 371 (1-2) ◽  
pp. 226-238 ◽  
Author(s):  
Churl Hee Cho ◽  
Ka Yeon Oh ◽  
Si Kyung Kim ◽  
Jeong Gu Yeo ◽  
Pankaj Sharma
Keyword(s):  
Water Flux ◽  
High Water ◽  
High Salt ◽  
Zeolite Membrane ◽  
Seawater Desalination ◽  
Salt Rejection ◽  
Naa Zeolite ◽  
Naa Zeolite Membrane

Transport mechanism of water molecules passing through polyamide/COF mixed matrix membranes

2019 ◽  
Vol 21 (48) ◽  
pp. 26591-26597 ◽  
Author(s):  
Yang Song ◽  
Mingjie Wei ◽  
Fang Xu ◽  
Yong Wang
Keyword(s):  
Water Permeability ◽  
Transport Mechanism ◽  
High Water ◽  
Mixed Matrix Membranes ◽  
Water Molecules ◽  
Mixed Matrix ◽  
Salt Rejection ◽  
The Cost ◽  
Significant Attention ◽  
Matrix Membranes

Mixed matrix membranes (MMMs) have gained significant attention due to their high water permeability without the cost of salt rejection. The mechanism of permeability promotion for PA/COFs MMMs is investigated in this work from molecular insights.

Enhancing Water Permeability with Super-hydrophilic Metal-Organic Frameworks and Hydrophobic Straight Pores

2021 ◽  
Author(s):  
Mehdi Habibollahzadeh ◽  
Juran Noh ◽  
Liang Feng ◽  
Hong-Cai Zhou ◽  
Ahmed Abdel-Wahab ◽  
...  
Keyword(s):  
Osmotic Pressure ◽  
Water Permeability ◽  
Metal Organic Frameworks ◽  
Water Flux ◽  
Forward Osmosis ◽  
High Water ◽  
Metal Organic

High water flux and salt selectivity have been the most demanding goals for osmosis-based membranes. Osmotic pressure differences across membranes are particularly important in emerging forward osmosis and pressure retarded...

Evaluation of some physical performance properties of ultrasonic seaming, conventional seaming and sealing adhesive tape on waterproof polyester knitted fabrics with polyurethane

2021 ◽  
pp. 004051752110388
Author(s):  
Ayşe Şevkan Macit ◽  
Bahar Tiber
Keyword(s):  
Water Permeability ◽  
High Water ◽  
The Other ◽  
Adhesive Tape ◽  
Water Penetration ◽  
Performance Property ◽  
Knitted Fabrics ◽  
Bursting Strength ◽  
Bending Property ◽  
Bending Length

Ultrasonic seaming has become an important issue in recent years due to its various features. In this study, waterproof polyester knitted fabrics with polyurethane coating were used and the bursting strength, bending property and water permeability property of ultrasonic seaming were examined by changing various parameters. Besides, the ultrasonic seaming method was compared to conventional seaming and adhesive tape application. It is observed that there were high water permeability values generally in ultrasonic seaming and also fabrics with no water penetration were seen in this method, although, in some ultrasonic seaming parameters, values are lower than adhesive tape sealed ones. On the other hand, the bursting strength values of the ultrasonically sewn fabrics are found to be comparable to conventional seam and sealing adhesive tape when the optimum seaming parameters are determined. Also, it can be said that for the bending property according to increasing bending length values in this method compared with the others, ultrasonic seaming may find more usage areas where fabric stiffness is more advantageous. It has been observed that it is important to determine the fabric and ultrasonic sewing parameters according to the required performance property.

scholarly journals Linking defects, hierarchical porosity generation and desalination performance in metal–organic frameworks

2018 ◽  
Vol 9 (14) ◽  
pp. 3508-3516 ◽  
Author(s):  
Weibin Liang ◽  
Lin Li ◽  
Jingwei Hou ◽  
Nicholas D. Shepherd ◽  
Thomas D. Bennett ◽  
...  
Keyword(s):  
Metal Organic Frameworks ◽  
Water Flux ◽  
Composite Membranes ◽  
High Salt ◽  
Salt Rejection ◽  
Hierarchical Porosity ◽  
Metal Organic

The composite membranes with defective metal–organic frameworks (MOFs) show a significant increase in water flux, without compromising the high salt rejection.

scholarly journals Development of walkway blocks with high water permeability using waste glass fiber-reinforced plastic

AIMS Energy ◽  
2018 ◽  
Vol 6 (6) ◽  
pp. 1032-1049 ◽  
Author(s):  
Yusuke Yasuda ◽  
◽  
Hayato Iwasaki ◽  
Kentaro Yasui ◽  
Ayako Tanaka ◽  
...  
Keyword(s):  
Glass Fiber ◽  
Water Permeability ◽  
High Water ◽  
Waste Glass ◽  
Fiber Reinforced ◽  
Glass Fiber Reinforced Plastic ◽  
Fiber Reinforced Plastic ◽  
Glass Fiber Reinforced ◽  
Reinforced Plastic

scholarly journals The Optimization of Some Peanuts (Arachis Hypogaea L.) Technology Sequences on the Irrigated Ash Deposits

1970 ◽  
Vol 66 (1) ◽  
Author(s):  
Emilia CONSTANTINESCU ◽  
Dorina BONEA ◽  
M. STEFAN ◽  
Luminita SANDU ◽  
M. GIORGOTA
Keyword(s):  
Arachis Hypogaea ◽  
Water Permeability ◽  
Plant Density ◽  
Vegetation Period ◽  
High Water ◽  
Environment Pollution ◽  
Surface Unit ◽  
Time Period ◽  
Arachis Hypogaea L ◽  
Long Time

Of the analysis of the soil and clime conditions that are characteristic for the ash deposits as well as from the observations on the behavior of an enriched array of species, on these terrains there was observed the possibility of obtaining good results with the peanuts crop on the terrains covered by powerplant ash. There was chosen the Arachis hypogaea L. due to its capacity to capitalize the ash covered terrains, as well as by protecting by its vegetal mass a long time period of the vegetation period, decreasing the ash drift and the reduction of the environment pollution that is near the ash deposits. In supporting this species there was considered the thermic favorable regime of the zone, the high sunshine, the light texture, high water permeability of the deposited material, the plant density to the surface unit and the covering degree of the terrain by vegetal mass, that are favorable features in controlling the ash drift and environment pollution.

Water and solute permeability of rat lung caveolae: high permeabilities explained by acyl chain unsaturation

2005 ◽  
Vol 289 (1) ◽  
pp. C33-C41 ◽  
Author(s):  
Warren G. Hill ◽  
Eyad Almasri ◽  
W. Giovanni Ruiz ◽  
Gerard Apodaca ◽  
Mark L. Zeidel
Keyword(s):  
Water Permeability ◽  
Acyl Chain ◽  
Water Flux ◽  
High Water ◽  
Fatty Acyl ◽  
Rat Lung ◽  
Membrane Structures ◽  
Solute Permeability ◽  
Outer Leaflet ◽  
Osmotic Water

Caveolae are invaginated membrane structures with high levels of cholesterol, sphingomyelin, and caveolin protein that are predicted to exist as liquid-ordered domains with low water permeability. We isolated a caveolae-enriched membrane fraction without detergents from rat lung and characterized its permeability properties to nonelectrolytes and protons. Membrane permeability to water was 2.85 ± 0.41 × 10−3 cm/s, a value 5–10 times higher than expected based on comparisons with other cholesterol and sphingolipid-enriched membranes. Permeabilities to urea, ammonia, and protons were measured and found to be moderately high for urea and ammonia at 8.85 ± 2.40 × 10−7and 6.84 ± 1.03 × 10−2 respectively and high for protons at 8.84 ± 3.06 × 10−2 cm/s. To examine whether caveolin or other integral membrane proteins were responsible for high permeabilities, liposomes designed to mimic the lipids of the inner and outer leaflets of the caveolar membrane were made. Osmotic water permeability to both liposome compositions were determined and a combined inner/outer leaflet water permeability was calculated and found to be close to that of native caveolae at 1.58 ± 1.1 × 10−3 cm/s. In caveolae, activation energy for water flux was high (19.4 kcal/mol) and water permeability was not inhibited by HgCl2; however, aquaporin 1 was detectable by immunoblotting. Immunostaining of rat lung with AQP1 and caveolin antisera revealed very low levels of colocalization. We conclude that aquaporin water channels do not contribute significantly to the observed water flux and that caveolae have relatively high water and solute permeabilities due to the high degree of unsaturation in their fatty acyl chains.

Nanoscopic insights of saline water in carbon nanotube appended filters using molecular dynamics simulations

2019 ◽  
Vol 21 (16) ◽  
pp. 8529-8542 ◽  
Author(s):  
Pooja Sahu ◽  
Sk. Musharaf Ali ◽  
K. T. Shenoy ◽  
S. Mohan
Keyword(s):  
Molecular Dynamics ◽  
Carbon Nanotube ◽  
Molecular Dynamics Simulations ◽  
Water Transport ◽  
Saline Water ◽  
High Salt ◽  
Salt Rejection ◽  
Dynamics Simulations ◽  
Very High

Nanotube appended membranes are shown to be very promising due to their ultrafast water transport and very high salt rejection ability.

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