Synergetic influence of F-MWCNTS on polyvinylpyrrolidone sodium alginate composite membrane for reverse osmosis

Iqbal, Sadia Sagar; Bahadar, Ali; Hossain, Nazia; Gull, Nafisa; Ahmad, Tasawer Shahzad; Ehsan, Nimra; Khan, Saba Urooge; Riaz, Tariq

doi:10.1016/j.jece.2021.106085

Cited by 9 publications

(8 citation statements)

References 40 publications

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“…19 The supported nanocomposite membrane K115 (4 wt% loadings) provided approximately 94% and 96% resistance to iron and copper nitrates, respectively, to pass through the membrane. 11 Therefore, the two times enhanced in rejection capability of the highest wt% CBF-loaded membrane are observed in comparison to virgin CA membrane K111. 48 The detailed description regarding each membrane is provided in Table 3 below.…”

Section: Heavy Metal Salts Rejection Capabilitymentioning

confidence: 89%

“…thought as a free/open resource. [9][10][11] Urbanization, rapid population growth, and industrialization are significantly causing, on one side, groundwater depletion due to higher requirement of fresh-water and on the other side the contamination of fresh-water resources such as rivers and lakes. 12,13 Recycling of tainted water to retrieve fresh-water is one of the solutions to address this problem.…”

mentioning

confidence: 99%

“…[Color figure can be viewed at wileyonlinelibrary.com] F I G U R E 4 Schematic for experimental setup used for permeation and salt rejection tests. The image includes: N 2 gas cylinder (1), opening valve (2), pressure regulator (3), pressure gauges (4, 5, and 7), gas release valve (6), gas valve towards cylinder(8), gas purge to outside (9), permeation module(10), membrane holder(11), magnetic stirrer(12), permeation outlet(13), and volumetric container(14). view in Figure5 (K115-b) demonstrates the supported Kevlar layer beneath the CA composite film as labeled.…”

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confidence: 99%

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Deportment of cobalt bismuth nanoferrites in Kevlar‐supported cellulose acetatemembranes for heavy metal‐salts rejection profile

Afzal

Rafique

Iqbal

2022

J of Applied Polymer Sci

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The designed novel hybrid laminate membranes have been synthesized with silane surface functionalized Kevlar fabric packed between two layers of cobalt bismuth nanoferrites (CBF)-loaded cellulose acetate. Primarily, nanoreinforcement; Co-Bi nano-ferrites were synthesized using sol-gel technique and functionalization is carried out using 3-aminpropyl-tri-methoxysilane. Secondarily, thermally assisted evaporation methodology coupled with dip-coating is adopted to synthesize hybrid Kevlar laminate membranes. Finally, structural, thermal, and flux along rejection studies are done on resultant hybrid membranes. The surface morphology, porosity generation, and homogeneous distribution of nanoincorporation with various concentration are revealed from micrographs of SEM of membranes. Noteworthy, impact of nanoreinforcement has been observed to holdup thermal oxidation of synthesized unique formulations of hybrid membranes employing TGA. Presence of CBF in cellulose acetate (CA)/Kevlar laminate membranes are modified glass transition and crystallization temperatures as cleared in DSC. De-ionized water for flux and heavy metal salts rejection capabilities of each formulated membrane were tested at applied pressures 60, 120, and 180 psi. The important findings are indicated that, increasing concentration of CBF loading in CA remarkably enhanced efficacy of metal-nitrates rejection with membranes. It is attributed to sole magneto-physiochemical behavior of nanoferrites that, facilitate enhanced adsorption in designed hybrid membranes for heavy metal rejection from industrial wastes.

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Section: Heavy Metal Salts Rejection Capabilitymentioning

confidence: 89%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Deportment of cobalt bismuth nanoferrites in Kevlar‐supported cellulose acetatemembranes for heavy metal‐salts rejection profile

Afzal

Rafique

Iqbal

2022

J of Applied Polymer Sci

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“…The multi-walled carbon nanotubes (MWCNTs) are nanofillers that have high mechanical strength, high stability, transparency, and excellent electrical, thermal, and photoluminescence properties [22]. The greater aspect ratio, lighter weight, greater surface area, and smaller size make the MWCNTs as promising materials for applications in industrial, environmental, and medical fields [20,23]. In addition, MWCNTs are reported to show good potential in food packaging materials due to their antibacterial nature and non-toxic effect on foodstuff [24][25][26][27].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of alginate-based antibacterial and antioxidant food packaging films

Bibi

Rehman

Akhtar

2022

Environmental Engineering Research

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This study contributes to the preliminary development of the active food packaging materials by using bio-based polymers under ultrasonic waves. For this alginate (Algi) polymer was reinforced with functionalized multiwalled carbon nanotubes (COOH-MWCNTs) dispersed in surfactants to form A-type of films. Similarly, to form a B-type of films, Algi polymer was blended with polyvinyl alcohol (PVA) in the presence of COOH-MWCNTs. The synthesized films were physiochemically characterized by FTIR, SEM, TEM, and mechanical testing. The antibacterial and antioxidant properties of prepared films were assessed by agar well diffusion method and ABTS/Ferrozine methods, respectively. Synthesized films showed prominent peaks of Algi, PVA, and of COOH-MWCNTs in FTIR analysis and dispersed nanofillers in SEM/TEM study. The Youngs Modulus of AD90 is 249.17 N/mm2, Bs90 is 216.80 N/mm2 and of Algi is 129.55 N/mm2. Staphylococcus aureus is the positive and Klebsiella pneumonia, Escherichia coli are the negative strains of bacteria that were successfully inhibited to grow by the prepared films. Synthesized materials also acted as strong antioxidants with no significant difference (P > 0.05) from ascorbic acid compared to Algi tested by ABTS and Ferrozine methods.

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“…It is water-soluble because of the presence of active CQO and -OH groups in its structure. 32 Recently, SA has been used to make various composite membranes, 33,34 since its non-toxic, biocompatible, biodegradable, less expensive, and easily available. In this work, we chose SA as the mid-layer used on the support since it has high-water affinity due to its oxygen-containing functional groups.…”

Section: Introductionmentioning

confidence: 99%

A novel multilayer thin-film membrane with high durability: preparation, characterization, performance investigation

et al. 2022

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Synergetic influence of F-MWCNTS on polyvinylpyrrolidone sodium alginate composite membrane for reverse osmosis

Cited by 9 publications

References 40 publications

Deportment of cobalt bismuth nanoferrites in Kevlar‐supported cellulose acetatemembranes for heavy metal‐salts rejection profile

Deportment of cobalt bismuth nanoferrites in Kevlar‐supported cellulose acetatemembranes for heavy metal‐salts rejection profile

Synthesis of alginate-based antibacterial and antioxidant food packaging films

A novel multilayer thin-film membrane with high durability: preparation, characterization, performance investigation

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