Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Hydrothermal Conversion of Annatto Seed Waste (<i>Bixa orellana</i>) into Functional Hydrochar: Synthesis, Characterization, and Adsorption Mechanism of Tetracycline.

Molecules (Basel, Switzerland)·2026
Same author

Advances in Electromembrane Processes for Resource Recovery.

Membranes·2026
Same author

Biological evaluation of amidine derivatives: In vitro cytotoxicity and cellular antioxidant capacity.

PloS one·2026
Same author

Hydrothermal Conversion of Wastewater Treatment Sands into Dual-Phase FAU/LTA Zeolite: Structural Insights and Performance in Methylene Blue Adsorption.

Molecules (Basel, Switzerland)·2026
Same author

Multiscale and Multimodal Image Fusion. Coping with Differences in Scanned Area and Spatial Resolution for Raman/Fluorescence Images of Labeled Cells.

Analytical chemistry·2025
Same author

Recent Advances in Combining Waterborne Acrylic Dispersions with Biopolymers.

Polymers·2025
Same journal

Miscibility and Cocrystallization in Ethylene-Vinyl Alcohol Copolymer Blends.

ACS applied polymer materials·2026
Same journal

Is Recycled Polypropylene Suitable for Flame-Retarded Applications?

ACS applied polymer materials·2026
Same journal

Antimicrobial Coating of Surgical Meshes by Laser-Induced Nanocarbon Synthesis and Transfer.

ACS applied polymer materials·2026
Same journal

Effect of Dialysis on the Osmotic Pressure, Conductivity, and Rheology of Aqueous Polyelectrolyte Solutions.

ACS applied polymer materials·2026
Same journal

Design of a Chitinase-Responsive, Depolymerizable Petroleum-Derived Polymer for Circular and Antifouling Materials.

ACS applied polymer materials·2026
Same journal

Hydrogen Valorization from Industrial Waste Streams Using Matrimid/LaNi<sub>5</sub> Mixed Matrix Hollow Fiber Membranes.

ACS applied polymer materials·2026
See all related articles

Related Experiment Video

Updated: Sep 15, 2025

Three-Dimensionally Printed Microfluidic Cross-flow System for Ultrafiltration/Nanofiltration Membrane Performance Testing
10:19

Three-Dimensionally Printed Microfluidic Cross-flow System for Ultrafiltration/Nanofiltration Membrane Performance Testing

Published on: February 13, 2016

11.5K

Optimizing Nanofiltration Membrane Layer-by-Layer Modification: Chemometric and Morphological Insights.

Tanaz Moghadamfar1,2, Rodrigo Rocha de Oliveira3, José Luis Cortina1,2,4

  • 1Chemical Engineering Department, Escola d'Enginyeria de Barcelona Est (EEBE), Universitat Politècnica de Catalunya (UPC)-Barcelona TECH, Campus Diagonal-Besòs, 08930 Barcelona, Spain.

ACS Applied Polymer Materials
|July 17, 2025
PubMed
Summary
This summary is machine-generated.

Layer-by-layer modification enhances nanofiltration membranes for improved multivalent ion removal. This study optimized surface properties, significantly boosting selectivity for calcium and magnesium ions in wastewater treatment applications.

Keywords:
Fortilife-XNcomposite membraneflat sheet membranepolyelectrolyte multilayerselectivity enhancement

More Related Videos

Layer-by-layer Synthesis and Transfer of Freestanding Conjugated Microporous Polymer Nanomembranes
09:09

Layer-by-layer Synthesis and Transfer of Freestanding Conjugated Microporous Polymer Nanomembranes

Published on: December 15, 2015

9.5K
Electrophoretic Crystallization of Ultrathin High-performance Metal-organic Framework Membranes
07:45

Electrophoretic Crystallization of Ultrathin High-performance Metal-organic Framework Membranes

Published on: August 16, 2018

10.1K

Related Experiment Videos

Last Updated: Sep 15, 2025

Three-Dimensionally Printed Microfluidic Cross-flow System for Ultrafiltration/Nanofiltration Membrane Performance Testing
10:19

Three-Dimensionally Printed Microfluidic Cross-flow System for Ultrafiltration/Nanofiltration Membrane Performance Testing

Published on: February 13, 2016

11.5K
Layer-by-layer Synthesis and Transfer of Freestanding Conjugated Microporous Polymer Nanomembranes
09:09

Layer-by-layer Synthesis and Transfer of Freestanding Conjugated Microporous Polymer Nanomembranes

Published on: December 15, 2015

9.5K
Electrophoretic Crystallization of Ultrathin High-performance Metal-organic Framework Membranes
07:45

Electrophoretic Crystallization of Ultrathin High-performance Metal-organic Framework Membranes

Published on: August 16, 2018

10.1K

Area of Science:

  • Materials Science
  • Chemical Engineering
  • Environmental Science

Background:

  • Nanofiltration (NF) membranes are crucial for separating multivalent ions in water treatment and industry.
  • Membrane fouling and reduced lifespan necessitate surface modification strategies.
  • The layer-by-layer (LBL) technique offers a method to enhance NF membrane performance and anti-fouling properties.

Purpose of the Study:

  • To evaluate the impact of LBL modification on a semiaromatic polyamide NF membrane (Fortilife-XN).
  • To analyze changes in surface properties, morphology, and ion rejection after LBL treatment.
  • To optimize LBL modification parameters for improved performance in multivalent ion separation.

Main Methods:

  • LBL modification using poly-(sodium 4-styrenesulfonate) (PSS) as polyanion and poly-(diallyldimethylammonium chloride) (PDADMAC) or poly-(allylamine hydrochloride) (PAH) as polycations.
  • Characterization of membrane surface properties (contact angle, roughness, morphology, thickness) using techniques like FTIR, ellipsometry, and Raman imaging.
  • Preliminary nanofiltration testing with mixed salt solutions (NaCl, CaSO4, MgSO4) to assess ion selectivity and permeability.

Main Results:

  • LBL modification altered membrane surface properties, with specific bilayer combinations showing enhanced wettability and roughness.
  • FTIR and Raman imaging confirmed successful multilayer deposition and structural changes.
  • Modified membranes exhibited significantly increased selectivity for Na/Ca (up to 134%) and Na/Mg (up to 131%) compared to the bare membrane.

Conclusions:

  • LBL modification is an effective strategy to enhance the performance of polyamide NF membranes for multivalent ion separation.
  • Surface property analysis provides crucial insights into the impact of LBL parameters on membrane performance.
  • Optimized LBL-modified membranes show potential for improved efficiency in wastewater treatment and brine management.