Related Experiment Video
Updated: Aug 1, 2025
07:28
An Efficient Method for Selective Desalination of Radioactive Iodine Anions by Using Gold Nanoparticles-Embedded Membrane Filter
Published on: July 13, 2018
7.5K
Versatile Silver-Nanoparticle-Impregnated Membranes for Water Treatment: A Review
Achisa C Mecha1, Martha N Chollom2, Bakare F Babatunde2
1Renewable Energy, Environment, Nanomaterials, and Water Research Group, Department of Chemical and Process Engineering, Moi University, P.O. Box 3900, Eldoret 30100, Kenya.
Membranes
|April 27, 2023
Summary
Silver nanoparticles enhance microfiltration (MF) and ultrafiltration (UF) membranes for water treatment, improving antifouling and flux. Further research is needed on long-term stability and performance.
Area of Science:
- Materials Science
- Environmental Engineering
- Nanotechnology
Background:
- Microfiltration (MF) and ultrafiltration (UF) membranes are increasingly used in water treatment due to cost-effectiveness and efficiency.
- Current MF and UF processes rely on size exclusion, limiting their effectiveness against smaller contaminants and microorganisms.
- There is a need to improve membrane disinfection, flux, and resistance to fouling.
Purpose of the Study:
- To review recent advancements in impregnating MF and UF membranes with silver nanoparticles (AgNPs) for water treatment applications.
- To critically evaluate the potential of AgNP-impregnated membranes for enhanced antifouling, permeability, and flux.
- To address the need for long-term stability studies of AgNPs and their impact on disinfection and antifouling performance.
Main Methods:
- Review of recent scientific literature on the impregnation of polymeric and ceramic MF and UF membranes with silver nanoparticles.
- Critical evaluation of studies focusing on the performance of these modified membranes in water treatment.
- Analysis of research addressing the long-term stability and performance of AgNP-modified membranes.
Main Results:
- AgNP impregnation shows potential for enhancing antifouling properties and increasing flux in MF and UF membranes.
- Modified membranes demonstrate improved permeability quality compared to uncoated counterparts.
- Most existing studies are laboratory-scale and short-term, highlighting a gap in long-term performance data.
Conclusions:
- Silver nanoparticles offer a promising route to enhance the capabilities of MF and UF membranes for water purification.
- Further research is crucial to assess the long-term stability of AgNPs and their sustained impact on membrane performance and disinfection.
- Addressing these challenges will pave the way for more robust and effective membrane-based water treatment solutions.
More Related Videos
Related Concept Videos
01:15Dialysis
751
Dialysis is a diffusion-based purification process that separates analyte molecules from a complex matrix. This is accomplished by allowing molecules in the solution to pass through a semipermeable membrane into a liquid on the other side. The membrane is usually made of cellulose acetate or cellulose nitrate, and the second liquid must be miscible with the solution. Ions (e.g., chloride or sodium) or organic molecules (e.g., glucose) can pass through the membrane pores, which generally have...
751
01:15Potentiometry: Membrane Electrodes
653
Membrane electrodes, also known as p-ion electrodes, use membranes that selectively interact with free analyte ions, generating a potential difference across the membrane. The resulting membrane potential, known as the asymmetry potential, is not zero even when analyte concentrations on both sides of the membrane are equal. The membrane's response is typically not selective to a single analyte but proportional to the concentration of all ions in the sample solution capable of interacting at...
653