Antifouling polyvinylidene fluoride ultrafiltration membrane fabricated from embedding polypyrrole coated multiwalled carbon nanotubes

Vatanpour, Vahid; Ghadimi, Ali; Karimi, Atefeh; Khataee, Alireza; Yekavalangi, Mohammad Ehsan

doi:10.1016/j.msec.2018.03.026

Cited by 76 publications

(24 citation statements)

References 37 publications

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“…Not only do graphene and CNTs considerably enhance the anti‐wetting membrane properties, they also improve their mechanical strengths, which is essential in MD operations . The incorporation of oxidized graphene and CNTs revert the membrane hydrophobicity to hydrophilicity; thus, assisting in the prevention of membrane fouling . A summary of NP‐enhanced membranes for MD processes is presented in Table .…”

Section: The Use Of Nanoparticles In Membrane Modificationmentioning

confidence: 99%

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A review of nanoparticle‐enhanced membrane distillation membranes: membrane synthesis and applications in water treatment

Nthunya

Gutierrez

Derese

et al. 2019

J of Chemical Tech & Biotech

119

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Membrane distillation (MD) is a thermally driven process that uses low‐grade energy to operate and has been extensively explored as an alternative cost‐effective and efficient water treatment process compared to conventional membrane processes. MD membranes are synthesized from hydrophobic polymers, e.g. polyvinylidene fluoride (PVDF), polytetrafluoroethylene (PTFE) or polypropylene (PP), using various methods including phase inversion and electrospinning techniques. Recent literature on MD membranes clearly shows their important role in surface water/wastewater treatment and seawater desalination. Modification of MD membranes with nanoscale materials significantly improves their performance, preventing wetting and fouling. This review presents a critical assessment of the progress on the use of nanomaterials for the modification of MD membranes. The techniques commonly used to synthesize MD membranes, the modifications that have been adopted for the incorporation of nanomaterials onto membranes, and the unique properties these nanomaterials impart on the membranes are discussed. The use of modified membranes in different MD configurations and their application in groundwater, surface water, wastewater, brackish water and seawater treatment is reviewed. Finally, cost implications, commercial viability, environmental sustainability, and future prospects of MD are also discussed to elucidate promising approaches for a future and successful implementation of MD at an industrial scale. © 2019 Society of Chemical Industry

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Section: The Use Of Nanoparticles In Membrane Modificationmentioning

confidence: 99%

“…31, 85 The incorporation of oxidized graphene and CNTs revert the membrane hydrophobicity to hydrophilicity; thus, assisting in the prevention of membrane fouling. 88,89 A summary of NP-enhanced membranes for MD processes is presented in Table 1.…”

Section: The Use Of Nanoparticles In Membrane Modificationmentioning

confidence: 99%

A review of nanoparticle‐enhanced membrane distillation membranes: membrane synthesis and applications in water treatment

Nthunya

Gutierrez

Derese

et al. 2019

J of Chemical Tech & Biotech

119

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“…Al observar los ángulos utilizando agua como solvente, se evidencia un incremento con respecto a las modificaciones la superficie. Esto sugiere que ésta gana hidrofobicidad con la primera funcionalización con tClVS, donde el agua es repelida no solo por la incorporación de los grupos vinilos poco afines ella, además, se ha reportado que el ángulo de contacto en superficies rugosas es mayor que en superficies relativamente lisas [24], en este caso, la superficie de PVC adquiere rugosidad con la adhesión de la física de la arcilla. Por otra parte, si se analiza la etapa de polimerización este gana hidrofilicidad, esto debido a la naturaleza de la molécula ya que el PSS es un polielectrolito soluble en agua.…”

Section: Construcción Y Caracterización Del Muestreador Pasivo Tipo Sondaunclassified

Building a probe-type passive sampler to study the contents of heavy metals in the aqueous phase in the soil.

Garcés¹,

s.a.s²,

Lerma³

et al. 2018

J. Sci. Technol. Appl.

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Construcción de un muestreador pasivo tipo sonda para estudiar el contenido de metales pesados en la fase acuosa del suelo ResumenPalabras claves Las concentraciones "disueltas" de contaminantes en el suelo proporcionan una descripción más relevante para la evaluación del riesgo que las concentraciones totales, pero también, la perturbación del suelo durante el proceso de muestreo se debe minimizar al máximo para obtener los mejores resultados con respecto a las condiciones reales a nivel de campo. En este contexto, los métodos de muestreo pasivo para estimar las concentraciones "disueltas" ofrecen el potencial de una caracterización in situ rentable y precisa de los contaminantes en los suelos, exactamente, la fase acuosa. En este trabajo, se desarrolló la construcción de una muestra pasiva de tipo sonda para estudiar los contenidos de metales pesados en la fase acuosa de los suelos. Para eso, la arcilla (bentonita) se inmovilizó en la superficie de poli (cloruro de vinilo) por métodos físicos. A continuación, la funcionalización de la superficie o la activación química se realizó por inserción química de unidades de vinilo fácilmente polimerizables mediante polimerización por radicales libres. Más tarde, se insertaron cadenas de poli(estearato de vinilo de sodio) usando persulfato de amonio como iniciador de radicales y agua desionizada como fase de reacción. Se promovieron diferentes Metales pesados Ácidos húmicos Ácidos fúlvicos Enlaces de hidrógeno

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“…[ 3–6 ] Lots of literatures have been reported on the developments and applications of PVDF membranes ever since 1980s, such as, ultrafiltration and microfiltration for general separation purposes. [ 7–10 ]…”

Section: Introductionmentioning

confidence: 99%

In situ investigation of formation kinetics of microporous structure in PVDF thin films prepared via thermally‐induced phase separation (TIPS): Effects of film thickness and polymer concentration

Yang

et al. 2021

Nano Select

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In this research, series of PVDF microporous films with various polymer concentrations and thickness were prepared through thermally‐induced phase separation in air condition with diphenyl carbonate as the diluent. Effects of polymer concentration and film thickness on the formation kinetics of microporous structure of PVDF thin films were in situ investigated via TII technique. The instantaneous heat conduction inside the films during film formation was also evaluated. Two types of parameter models were adopted in order to disclose the time and location dependence of TIPS film solidification kinetics, respectively. Hierarchical microstructures, crystallization behavior and thermal properties of the TIPS films were also characterized by SEM, DSC, and TGA, respectively. The current study could supply an insight into the fabrication of PVDF microporous films with target microstructure and desirable performance.

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Antifouling polyvinylidene fluoride ultrafiltration membrane fabricated from embedding polypyrrole coated multiwalled carbon nanotubes

Cited by 76 publications

References 37 publications

A review of nanoparticle‐enhanced membrane distillation membranes: membrane synthesis and applications in water treatment

A review of nanoparticle‐enhanced membrane distillation membranes: membrane synthesis and applications in water treatment

Building a probe-type passive sampler to study the contents of heavy metals in the aqueous phase in the soil.

In situ investigation of formation kinetics of microporous structure in PVDF thin films prepared via thermally‐induced phase separation (TIPS): Effects of film thickness and polymer concentration

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