Water vapor removal using <scp>CA</scp>/<scp>PEG</scp> blending materials coated hollow fiber membrane

Kim, KeeHong; Ingole, Pravin G.; Yun, SangHee; Choi, Won-Kil; Kim, JongHak; Lee, Hyung-Keun

doi:10.1002/jctb.4421

Cited by 38 publications

(6 citation statements)

References 39 publications

(39 reference statements)

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“…The main reason is that CA has abundant hydroxyl groups to improve the membranes' hydrophilicity. [ 53 ] Second, as seen from the water uptake and contact angle data of membranes M1‐2, M2‐1 and M2‐2, it is evident that with the increment of nano‐SiO 2 content from 0 to 0.5%, water uptake increases from 150.98% (membrane M1‐2) to 233.74% (membrane 2–2) and contact angle decreases from 83.04° to 63.67° accordingly. There are two main reasons for this.…”

Section: Resultsmentioning

confidence: 97%

Performance adjustable porous polylactic acid‐based membranes for controlled release fertilizers

Wang

Zhang

Han

et al. 2020

J of Applied Polymer Sci

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Here, the phase inversion method using a mixture of chloroform and acetone as a solvent was adopted to fabricate a series of porous polylactic acid (PLA)‐based membranes for controlled release fertilizers (CRFs). Cellulose acetate (CA) was used as an additive; polyethylene glycol (PEG) and nano‐SiO2 were used as porogens. Our first interest is to investigate effects of the amount of additive and porogen and type of porogens on the resulting membranes' performance. Results show the dialysis coefficient for membrane M1‐3 (CA content of 2%) is nearly 20 times higher than that for M0‐1 (CA content of 0%), suggesting that the addition of CA can promote the membrane's permeability. Porogens can increase membranes' hydrophilicity, dialysis coefficient and nutrient release rate. However, there is no obvious performance difference between membranes with different porogens. Secondly, M1‐2 (no porogen), M2‐2 (nano‐SiO2 content of 0.5%) and M3‐2 (PEG content of 0.5%) were selected to coat urea granules. Results show the nutrient release rate of urea coated by M2‐2, M3‐2 is much higher than that of urea coated by M1‐2. This research suggests the resulting membranes' performance is easily adjustive and they can be applied to prepare various CRFs to fertilize various crops.

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Section: Resultsmentioning

confidence: 97%

Performance adjustable porous polylactic acid‐based membranes for controlled release fertilizers

Wang

Zhang

Han

et al. 2020

J of Applied Polymer Sci

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“…A number of polymers with different permeability and selectivity have been investigated for a number of applications including desalination, reverse osmosis and flue gas dehydration [2][3][4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Development of carboxylated TiO2 incorporated thin film nanocomposite hollow fiber membranes for flue gas dehydration

Baig

Ingole

Choi

et al. 2016

Journal of Membrane Science

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“…These adsorptive membranes can provide increased filtration efficiency, long-term operation, ability to adsorb various contaminants from water, better antimicrobial properties, and are easy to reuse [30]. Besides, natural polysaccharide-based polymers and their derivatives [52], such as CA [30,53] and chitosan [54,55], have been widely used as a base for membrane modification. These natural polymers provide considerate properties such as high water flux, owing to their hydrophilic nature and compatible dissolution in suitable solvent [52].…”

Section: Introductionmentioning

confidence: 99%

A Mini Review of Recent Findings in Cellulose-, Polymer- and Graphene-Based Membranes for Fluoride Removal from Drinking Water

Tolkou

Meez

Kyzas

et al. 2021

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Effective fluoride removal from water is a persistent global concern both for drinking water and wastewater treatment. According to World Health Organization (WHO), standards for the maximum contaminant level in drinking water cannot be higher than 1.5 mg F− L−1 since affects the skeletal and nervous systems of humans. Various technologies have been developed to decrease fluoride concentration from waters, such as adsorption, coagulation, precipitation and membrane separation. Membrane technology has been found to be a very effective technology, significantly reducing fluoride to desired standards levels; however, it has received less attention than other technologies because it is a costly process. This review aims to discuss the recent studies using modified membranes for fluoride removal. Emphasis is given on cellulose-, polymer- and graphene-based membranes and is further discussing the modification of membranes with several metals that have been developed in the last years. It was observed that the main focus of the total publications has been on the use of polymer-based membranes. Most of the membranes applied for defluoridation exhibit greater efficiency at pH values close to that of drinking water (i.e., 6–8), and maximum treatment capacity was obtained with the use of a cellulose modified membrane Fe-Al-Mn@chitosan with a permeate flux of 2000 L m−2 h−1, following the carbon-based amyloid fibril nano-ZrO2 composites (CAF-Zr) 1750 L m−2. A technical-economic comparison study of NF and RO is also referred, concluding that NF membrane is slightly less expensive.

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Water vapor removal using CA/PEG blending materials coated hollow fiber membrane

Cited by 38 publications

References 39 publications

Performance adjustable porous polylactic acid‐based membranes for controlled release fertilizers

Performance adjustable porous polylactic acid‐based membranes for controlled release fertilizers

Development of carboxylated TiO2 incorporated thin film nanocomposite hollow fiber membranes for flue gas dehydration

A Mini Review of Recent Findings in Cellulose-, Polymer- and Graphene-Based Membranes for Fluoride Removal from Drinking Water

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