Synthesis of asymmetrical cellulose acetate/cellulose triacetate forward osmosis membrane: Optimization

Chen, Guan-Jie; Lee, Dong Hoon

doi:10.1016/j.jtice.2018.10.031

Cited by 23 publications

(5 citation statements)

References 16 publications

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“…The presented study results showed that the prepared membrane from CBs had a proper morphology, and its flux and reverse salt rate were similar to the ranges reported for commercial CA membranes. Also, the removal efficiency of the prepared membrane for heavy metals was more than 85%, while the figure was more than 99% for pure CA membranes 54 , 55 . However, the efficiency of the prepared membrane can be improved by adding specific compounds to the raw material or changing the membrane production process; hence, the quality of the presented product can be considered satisfying.…”

Section: Resultsmentioning

confidence: 88%

“…In 2013, Butler et al reported that the efficiency of the CA membranes for chromium, lead, copper, and arsenic removal in the forward osmosis process was more than 99% 54 . In 2019, Chen et al studied the efficiency of CA membranes in lead, chromium, zinc, copper, and mercury removal at a concentration of 100 mg/L, and the mentioned removal rate for metals was more than 99% 55 . Considering that heavy metal removal using the membrane technology depends on physical, chemical, and electrochemical processes as well as hydraulic rules 56 , 57 , the metal removal efficiency achieved in this study can be explained.…”

Section: Resultsmentioning

confidence: 99%

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Preparation of a cellulose acetate membrane using cigarette butt recycling and investigation of its efficiency in removing heavy metals from aqueous solution

Torkashvand

Saeedi-Jurkuyeh

Kalantary

et al. 2022

Sci Rep

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This study investigated the recycling of freshly-smoked cigarette butts (FCBs) and unsmoked cigarette filters (UCFs) into a cellulose acetate (CA) membrane. The both samples were prepared by means of a combination of seven cigarette brands, and the phase inversion method was used to recycle each sample into a membrane using N-methyl-2-pyrrolidone. The efficiency of the prepared membranes for the removal of chromium, cadmium, and lead from an aqueous solution in a forward osmosis reactor was investigated. The results showed that the both membranes had a smooth surface and macrovoids. The flux of the prepared membranes from the UCFs and FCBs recycling were 14.8 and 13.2 LMH, respectively. The porosity and reverse salt of the UCFs membrane were 61% and 3.5 gMH, while those for FCBs membrane were 58% and 3.9 gMH. The observed metal removal efficiency of the both membranes was in the range of 85 to 90%. However, increasing the concentration of metals up to five times caused a slight decrease in the removal efficiency (less than 5%).

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Section: Resultsmentioning

confidence: 88%

Section: Resultsmentioning

confidence: 99%

Preparation of a cellulose acetate membrane using cigarette butt recycling and investigation of its efficiency in removing heavy metals from aqueous solution

Torkashvand

Saeedi-Jurkuyeh

Kalantary

et al. 2022

Sci Rep

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“…The addition of formamide to membrane surfaces, as shown in Figure 4, demonstrates better pore uniformity than with PEG (Figure 3), at a range of 0.1 -0.5μm and 0.5 -1μm, respectively. These pore characteristics influence flux and rejection, as small sizes lead to higher rejection and lower flux (Chen & Lee, 2018). Desalination was conducted using sodium chloride solution as feed, at a concentration of 20,883 ppm, which was reduced to 14,118 and 10,847 ppm by membrane with PEG and formamide, respectively.…”

Section: Figure 2 Tensil Strength Of Membranementioning

confidence: 99%

The Effect of Additive on Cellulose Acetate Membrane From Coconut Sap in Desalination Application

Widyaningsih

Chasani

Zusfahair

et al. 2020

MJS

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The synthesis of Cellulose acetate membrane, based on coconut sap, was successful using the phase inversion method. This was then applied in the process of desalination, in order to ascertain to the performance. In addition, this is possibly affected by the introduction of additive, hence the aim of this research is to identify the possible effects. The additives used were polyethylene glycol (PEG) and formamide, and the membrane characteristics studied include flux, rejection, tensile strength, and pore size. The result showed that cellulose acetate membrane with PEG has 17.43 L/(m2.h) of flux and 32.23% rejection, while 7.8 L/(m 2 .h) of flux and 46% rejection were reported for formamide. Conversely, the rejection recorded without the introduction of additive was 25%, hence it is assumed that additives increase membrane performance. Also, formamide was confirmed to better improve characteristic than PEG.

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“…Owing to the increasing water demand along with the aggravation of water pollution, the clean water shortage is now considered a big issue, which has widely affected people life. 1,2 Among all the pollutions that occur in drinking water, the pollution with dye molecules is taken place as a key industrial pollution, especially in textile industry, arising from their toxicity, complex components, and so forth. 3,4 So far, numerous techniques, such as adsorption, biological treatment, and advanced oxidation, have been widely utilized for the purpose of treating dye wastewaters.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of mixed matrix polyphenylsulfone‐polysulfone blend membranes incorporated with Nickel/Hydrazine@silica core‐shell nanoparticles using VIPS‐NIPS method for efficient dye rejection

Mahdavi,

Khademi,

Heidari

et al. 2023

J of Applied Polymer Sci

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The dye‐water treatment using nanofiltration membranes is still an important issue. In this work, we have reported the fabrication of silica nanoparticles using a robust approach with well‐controlled aspect ratios. Accordingly, we first fabricated hydrophilic Nickel/Hydrazine@silica core‐shell nanoparticles, in which Ni nanoparticles were coated with a shell of silica. Then, different content of the prepared nanoparticles were incorporated into polyphenylsulfone/ polysulfone membrane matrixes in order to enhance the membranes hydrophilicity. The pristine and mixed matrix membranes (MMMs) were fabricated via the vapor‐induced phase separation coupled with non‐solvent‐induced phase separation (VIPS‐NIPS) approach, where Dioxane was employed as the co‐solvent. The dye rejection performance of the prepared membranes was evaluated for aqueous solutions of a variety of dyes, including direct yellow (DY), crystal violet (CV), methyl green (MG), and methylene blue (MB). Accordingly, it was indicated that the membrane with 0.12 wt.% of nanoparticles could provide an outstanding rejection performance as high as 99.7, 99.3, 98.4 and 97 for DY, MG, CV and MB, respectively, a superb water flux (6.1 L/m2 h bar), a great long‐term durability and an excellent antifouling performance.

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Synthesis of asymmetrical cellulose acetate/cellulose triacetate forward osmosis membrane: Optimization

Cited by 23 publications

References 16 publications

Preparation of a cellulose acetate membrane using cigarette butt recycling and investigation of its efficiency in removing heavy metals from aqueous solution

Preparation of a cellulose acetate membrane using cigarette butt recycling and investigation of its efficiency in removing heavy metals from aqueous solution

The Effect of Additive on Cellulose Acetate Membrane From Coconut Sap in Desalination Application

Fabrication of mixed matrix polyphenylsulfone‐polysulfone blend membranes incorporated with Nickel/Hydrazine@silica core‐shell nanoparticles using VIPS‐NIPS method for efficient dye rejection

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