Atomic layer deposition and electrospinning as membrane surface engineering methods for water treatment: a short review

Abstract

<p>This review article provides a summary of the application of ALD and electrospinning in membrane processes for water treatment and insight into the technological challenges and future perspectives for their wider application in the membrane industry.</p>

Tailoring the Surface Properties of Micro/Nanofibers Using 0D, 1D, 2D, and 3D Nanostructures: A Review on Post‐Modification Methods

“…[ 203 ] Researchers have also expanded ALD applications to the water treatment field, for example in oil/water separation, [ 214 ] although ALD is not a routine procedure employed for membrane modification technique. [ 215 ]…”

Recent progress in nanomaterial-functionalized membranes for removal of pollutants

“…Another report has also demonstrated electrospinning to form flat ribbons instead of round fiber ( Du et al., 2013 ; Yadav et al., 2021 ). Due to the precise control over the fiber size, shape, and morphology, electrospun fibrous membranes have been used for membrane filtration processes ( Lee et al., 2020 ).

Figure 3 Electrospinning method of synthesizing nanomaterial-functionalized membranes (A) Working diagram of electrospinning apparatus and SEM image of electrospun nanofibrous membrane.

…”

A Comprehensive Review on the Applications of Boron Nitride Nanomaterials in Membrane Fabrication and Modification

“…Although significant enhancement on mechanical and thermal properties of polymer-based composite membranes by BN modification extended these material applications in electronic devices, , their application in many other areas has remained a challenge. Electrospinning seems to be a suitable method thanks to the large surface area and high porosity, but there are some limitations and further studies need to be done to improve the electrospinning application in diverse applications . The primary limitations of electrospun nanofibrous membranes are attributed to their wide pore size distribution and low mechanical strength, which can be enhanced by welding the nanofiber at their junction points.…”

“…Although the ALD technique was found to be a promising method to modify the properties of membranes thanks to the uniform and precise layer deposition that can be obtained, there are some limitations regarding the large-scale utilization of this method, in which further investigations are shown as a challenge of this stage. On the other hand, ALD is considered a pricey method that needs to be reformed for commercial applications …”