Development and Evaluation of Electrospun Nanocomposite Coatings for Solar Membrane Distillation

Date
2019-02-19
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract

The objective of this research was to develop and evaluate a cost effective electrospun photothermal coating for solar membrane distillation (MD). Polyvinyl alcohol (PVA) with embedded carbon black (CB) nanoparticles were electrospun directly onto surface hydrophilized polyvinylidene fluoride (PVDF) membranes to impart a resistance free photothermal layer. PVA was chosen as a cost-effective alternative to previously reported photothermal coatings of Polyvinyl alcohol, N-methyl-4(4’-formylstyryl)pyridinium methosulfate acetal (SbQ-PVA) CB composites. To evaluate efficacy of photothermal coatings, both conventional MD and solar MD tests were carried out. Coatings were also tested for stability in feed solutions of varying NaCl concentrations and pH. PVA/CB coatings were found to have improved water stability compared to existing photothermal coatings and did not sacrifice MD performance.

Description
Degree
Master of Science
Type
Thesis
Keywords
Electrospinning, Membrane Distillation, desalination, water treatment, solar, membrane
Citation

Kellogg, Bernie. "Development and Evaluation of Electrospun Nanocomposite Coatings for Solar Membrane Distillation." (2019) Master’s Thesis, Rice University. https://hdl.handle.net/1911/105871.

Has part(s)
Forms part of
Published Version
Rights
Copyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.
Link to license
Citable link to this page