PVDF membranes containing alkyl and perfluoroalkyl-functionalized graphene nanosheets for improved membrane distillation

Luque-Alled, José Miguel; Leaper, Sebastian; Abdel‐Karim, Ahmed; Skuse, Clara; Gorgojo, Patricia

doi:10.1016/j.jece.2023.109898

Cited by 9 publications

(4 citation statements)

References 63 publications

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“…Porosity elevated as nanofiller was introduced until it attained the peak value at the optimal load level. Nevertheless, subsequent to reaching this optimum point, there is a decline in porosity [19]. Simultaneously, the Guerout-Elford-Ferry approach was employed to analyze the average pore radius, unveiling a consistent reduction in membrane pore size with each successive addition of photocatalyst.…”

Section: Membrane Porositymentioning

confidence: 99%

Performance of PVDF-La dope TiO₂ Membrane Photocatalytic Under Visible Light Irradiation for Produced Water Treatment

Kusworo,

Puspa

2024

E3S Web Conf.

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Membrane technology has been widely applied in water management systems for production, but is still hindered by fouling phenomena and low selectivity. Improving membrane performance through modification, such as the addition of photocatalytic materials, has been explored. In this research, La@TiO2 composite was incorporated into PVDF membranes for the treatment of produced water. Lanthanum doping on TiO2 effectively inhibits carrier recombination and enhances photocatalytic activity. According to the research results, adding the La@TiO2 composite to the membrane matrix increased the porosity value and membrane pore size. The PVDF-La@TiO2 1.5%wt membrane exhibited the highest flux values, specifically 20.59 L.m-2.h-1 and 40 L.m-2.h-1 in dark conditions and visible light irradiation. The rejection rates for COD, TDS, and ammonia were 69.89%, 57.77%, and 69.65%. The photocatalytic degradation effect of PVDF-La@TiO2 is proven by a significant difference in the filtration results under vis-light irradiation. The kinetics of COD removal are better described by a pseudo-first-order model. The degradation of PVDF-La@TiO2 1.5% pollutant demonstrated significant results, confirming its photocatalytic activity under irradiation. Overall, the membrane exhibited good performance and proved to be reusable after 6 hours of photofiltration. This research holds promise for enhancing the use of membrane photocatalytics in the treatment of produced water.

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Section: Membrane Porositymentioning

confidence: 99%

Performance of PVDF-La dope TiO₂ Membrane Photocatalytic Under Visible Light Irradiation for Produced Water Treatment

Kusworo,

Puspa

2024

E3S Web Conf.

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“…Luque-Alled et al [143] fabricated two types of PVDF-based MMMs with hydrophobic GOs. The first MMM contains reduced GO functionalized with octylamine (OA-rGO), while the second has reduced GO functionalized with perfluorooctylamine (PFOA-rGO).…”

Section: Graphene In Membrane Distillationmentioning

confidence: 99%

“…However, contributions on this topic are still scarce and further studies are needed. A recent desalination study was conducted with thin MoS 2 layers [143]. The Moonly pore architecture provides the highest water permeation rate, while the hydrophilicity of S-terminated single cell MoS 2 causes high affinity for water and some gases, such as CO 2 and NO 2 .…”

Section: Tmdc In Membrane Processesmentioning

confidence: 99%

Two-Dimensional Materials: From Discovery to Application in Membrane Distillation/Crystallization Processes

Frappa,

Alessandro,

Macedonio

et al. 2023

Chemistry

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Sustainable water desalination and purification membrane processes require new practical pathways to improve their efficiency. To this end, the inclusion of two-dimensional materials in membrane structure has proven to have a significant impact in various applications. In particular, in processes such as membrane distillation and crystallization, these materials, thanks to their characteristics, help to increase the recovery of clean water and, at the same time, to improve the quality and the production of the recovered salts. Therefore, a fundamental aspect of obtaining 2D materials with certain characteristics is the technique used for the preparation. This review provides a broad discussion on the preparation and proprieties of 2D materials, including examples of organic structures (such as graphene and structures containing transition metals and organic metals). Finally, the critical challenges, future research directions, and the opportunities for developing advanced membranes based on 2D materials are outlined.

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“…40–42 The addition of GO not only decreases the membrane's hydrophobicity but also improves its mechanical properties. GO has oxygen; 43,44 as a result, the GO surface is electron-rich (negatively charged) and exhibits excellent adsorption of cationic compounds. 45–47 Moreover, these membranes do not swell in water and remain stable.…”

Section: Introductionmentioning

confidence: 99%

A review of current developments in graphene oxide–polysulfone derived membranes for water remediation

Zubair,

Farooq,

Hussain

et al. 2024

Environ. Sci.: Adv.

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PVDF membranes containing alkyl and perfluoroalkyl-functionalized graphene nanosheets for improved membrane distillation

Cited by 9 publications

References 63 publications

Performance of PVDF-La dope TiO₂ Membrane Photocatalytic Under Visible Light Irradiation for Produced Water Treatment

Performance of PVDF-La dope TiO₂ Membrane Photocatalytic Under Visible Light Irradiation for Produced Water Treatment

Two-Dimensional Materials: From Discovery to Application in Membrane Distillation/Crystallization Processes

A review of current developments in graphene oxide–polysulfone derived membranes for water remediation

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PVDF membranes containing alkyl and perfluoroalkyl-functionalized graphene nanosheets for improved membrane distillation

Cited by 9 publications

References 63 publications

Performance of PVDF-La dope TiO2 Membrane Photocatalytic Under Visible Light Irradiation for Produced Water Treatment

Performance of PVDF-La dope TiO2 Membrane Photocatalytic Under Visible Light Irradiation for Produced Water Treatment

Two-Dimensional Materials: From Discovery to Application in Membrane Distillation/Crystallization Processes

A review of current developments in graphene oxide–polysulfone derived membranes for water remediation

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Product

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Performance of PVDF-La dope TiO₂ Membrane Photocatalytic Under Visible Light Irradiation for Produced Water Treatment

Performance of PVDF-La dope TiO₂ Membrane Photocatalytic Under Visible Light Irradiation for Produced Water Treatment