Optimization of PES/ZnO mixed matrix membrane preparation using response surface methodology for humic acid removal

Ahmad, Abdul Latif; Abdulkarim, Abdullah Adnan; Ismail, Suzylawati; Seng, Ooi Boon

doi:10.1007/s11814-015-0221-9

Cited by 18 publications

(5 citation statements)

References 45 publications

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“…The main objective of this technique is to find the optimal solution corresponding to these responses. However, previous research explained that the HF membranes fabricated by the phase inversion spinning technique were influenced by various parameters such as bore fluid flow rate/composition, external coagulation temperature, AG and polymer or additive concentration 32 . These independent variables increase the occurrence of overfitting, and consequently, a model becomes extremely complex.…”

Section: Methodsmentioning

confidence: 99%

“…However, previous research explained that the HF membranes fabricated by the phase inversion spinning technique were influenced by various parameters such as bore fluid flow rate/composition, external coagulation temperature, AG and polymer or additive concentration. 32 These independent variables increase the occurrence of overfitting, and consequently, a model becomes extremely complex. Hence, the most effective way is to select the vital factors that had major impacts on the responses.…”

Section: Fabrication Of Pvdf Hf Membranementioning

confidence: 99%

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Evaluation of anti‐wetting nano‐fumed silica/PVDF hollow‐fiber membrane by central composite design optimization towards efficient desalination performance via membrane distillation

Alsebaeai,

Ahmad,

Ooi

2023

J of Chemical Tech & Biotech

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BackgroundMembrane distillation (MD) is considered a viable technology to overcome the issue of water scarcity by desalination of seawater. However, the application of MD has been severely restricted by membrane‐wetting phenomena. This study aims to optimize the desired mixed matrix hollow fiber (HF) membrane conditions that have anti‐wetting characteristics for efficient desalination. Response surface methodology (RSM) based on central composite design (CCD) was used to predict and optimize the permeate flux and salt rejection. The Combined effects of polymer (polyvinylidene fluoride, PVDF) concentration, nano‐fumed silica (NFS) particle loading, coagulation bath temperature (CBT), and air gap distance (AG), as well as their interactions in terms of desalination performance, have been investigated.ResultsThe linear factors (NFS, CBT), the quadratic effects of all variables, as well as the interacting terms between (PVDF, NFS), (PVDF, CBT), and (NFS, CBT) had significant effects for both pure water and permeate fluxes (PWF, PF). For salt rejection (SR), only PVDF presented a linear effect, while a quadratic effect was obtained in (NFS, AG) and an interaction effect was obtained between PVDF and NFS. Under optimal conditions of PVDF (15.03 wt.%), NFS (1.21 wt.%), CBT (54.85 oC), and AG (9.9 cm), the optimal mixed matrix HF membrane demonstrated higher experimental average values for pure water and permeate fluxes reached up to 11.95 and 11.61 kg m−2 h−1 respectively, and an SR of 99.96% as compared to the pristine membrane.ConclusionOur research provides an efficient anti‐wetting NFS/PVDF mixed matrix HF membrane, indicating that the optimal membrane possesses a high potential for the direct contact membrane distillation (DCMD) process.This article is protected by copyright. All rights reserved.

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Section: Methodsmentioning

confidence: 99%

Section: Fabrication Of Pvdf Hf Membranementioning

confidence: 99%

Evaluation of anti‐wetting nano‐fumed silica/PVDF hollow‐fiber membrane by central composite design optimization towards efficient desalination performance via membrane distillation

Alsebaeai,

Ahmad,

Ooi

2023

J of Chemical Tech & Biotech

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“…An interesting solution in developing the possibility of modifying membranes is the possibility of applying the response surface methodology (RSM), used to calculate complex interactions between independent process parameters. Ahmad et al [ 165 ] applied this method to determine the possibility of modifying a polyethersulfone (PES) and polyvinylpyrrolidone (PVP) membrane with ZnO by the phase inversion technique. The purpose of the modifications was to be able to use such modified membranes to remove humic acid.…”

Section: Membranes Containing Nanoparticles Of Other Nanoparticlesmentioning

confidence: 99%

“…On the basis of the modeling, it was shown that the most optimal conditions for membrane preparation were 17.25, 3.62, and 3.75 wt% and 15 s for PES, ZnO-NP, PVP weight percent, and solvent evaporation time, respectively. The membrane thus obtained allows to obtain rejection of humic acid even at the level of 96.34% [ 165 ].…”

Section: Membranes Containing Nanoparticles Of Other Nanoparticlesmentioning

confidence: 99%

Nanometals-Containing Polymeric Membranes for Purification Processes

et al. 2021

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A recent trend in the field of membrane research is the incorporation of nanoparticles into polymeric membranes, which could produce synergistic effects when using different types of materials. This paper discusses the effect of the introduction of different nanometals such as silver, iron, silica, aluminum, titanium, zinc, and copper and their oxides on the permeability, selectivity, hydrophilicity, conductivity, mechanical strength, thermal stability, and antiviral and antibacterial properties of polymeric membranes. The effects of nanoparticle physicochemical properties, type, size, and concentration on a membrane’s intrinsic properties such as pore morphology, porosity, pore size, hydrophilicity/hydrophobicity, membrane surface charge, and roughness are discussed, and the performance of nanocomposite membranes in terms of flux permeation, contaminant rejection, and antifouling capability are reviewed. The wide range of nanocomposite membrane applications including desalination and removal of various contaminants in water-treatment processes are discussed.

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“…These features should be controlled or avoided by optimizing the synthesis process parameters acting on polymer concentration, filler concentration (57), casting technique or additional involvement of suitable material, i.e., additive or modification technique such as functionalization, coating etc. to develop a better compatibility between phases (31,37,47,(57)(58)(59)(60). At the moment, efficient incorporation of nano-materials into polymeric phases in the lab could not be scaled-up for industrial application.…”

Section: Introductionmentioning

confidence: 99%

Mixed Matrix Membranes for Water Purification Applications

Qadir

Mukhtar

Lau

2016

Separation & Purification Reviews

151

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Membrane technology has been utilized for water purification application for a long time. Both polymeric and ceramic membranes have been center of interest for their tremendous contribution in this area. Despite their advantages, these synthetic membranes have limitations in terms of performance and durability. To meet the new demands and standards, mixed matrix membranes (MMM) have gained serious importance due to their ability to combine the features of the aforementioned membrane materials, offering better solutions in terms of performance, fouling, permeate quality and longevity. Besides such attractive features, MMMs have not yet reached sufficient maturity to challenge conventional membranes commercially. This review categorizes MMMs on its filler basis into four types; (i) inorganic filler-based MMMs, (ii) organic filler-based MMMs, (iii) biofillers-based MMMd, and (iv) hybrid filler-based MMMs. A discussion is extended to modules and cost of these membranes along with the specific applications of each type of fillers. It also identifies the issues and challenges in the MMM area and highlights the domains that remain to be investigated.

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Optimization of PES/ZnO mixed matrix membrane preparation using response surface methodology for humic acid removal

Cited by 18 publications

References 45 publications

Evaluation of anti‐wetting nano‐fumed silica/PVDF hollow‐fiber membrane by central composite design optimization towards efficient desalination performance via membrane distillation

Evaluation of anti‐wetting nano‐fumed silica/PVDF hollow‐fiber membrane by central composite design optimization towards efficient desalination performance via membrane distillation

Nanometals-Containing Polymeric Membranes for Purification Processes

Mixed Matrix Membranes for Water Purification Applications

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