Self-assembly modification of polyamide membrane by coating titanium dioxide nanoparticles for water treatment applications

  • Rosangela Bergamasco Universidade Estadual de Maringá (UEM), Maringá, PR, Brasil Departamento de Engenharia Química (DEQ).
  • Priscila Ferri Coldebella Centro Universitário Dinâmica das Cataratas (UDC), Foz do Iguaçu, PR, Brasil Colegiado de Farmácia.
  • Franciele Pereira Camacho Universidade Estadual de Maringá (UEM), Maringá, PR, Brasil Departamento de Engenharia Química (DEQ).
  • Driano Rezende Universidade Estadual de Maringá (UEM), Maringá, PR, Brasil Departamento de Engenharia Química (DEQ).
  • Natalia Ueda Yamaguchi Centro Universitário de Maringá (Unicesumar/ICETI), Maringá, PR, Brasil Departamento de Tecnologias Limpas.
  • Márcia Regina Fagundes Klen Universidade Estadual do Oeste do Paraná (UNIOESTE), Cascável, PR, Brasil Centro de Engenharia e Ciências Exatas (CECE).
  • Carlos José Macedo Tavares Universidade do Minho (UMinho), Guimarães, Portugal Departamento de Física (DF).
  • Maria Teresa Sousa Pessoa Amorim Universidade do Minho (UMinho), Guimarães, Portugal Departamento de Engenharia Têxtil (DET).
DOI: https://doi.org/10.4136/ambi-agua.2297
Keywords: membrane filtration, methylene blue, organic photodegradation, photocatalysis, titanium dioxide.

Abstract

This study modified the surface of a commercial polyamide membrane with the deposition of TiO2 nanoparticles by the self-assembly method under pressure with high permeability and photocatalytic activity. Changes in membrane characteristics and its performance for photocatalytic properties were evaluated. The results indicated that both membrane hydrophilicity and photocatalytic performance were significantly improved by the presence of TiO2 nanoparticles applied under a pressure of 1 bar. The deposition of the TiO2 particles under pressure was able to maintain the particles on the surface of the membranes and their photocatalytic capacity for three cycles of use. The prepared TiO2 photocatalytic membrane presented a great potential for wastewater treatment and for reuse wastewater systems due its ability to remove methylene blue (MB) dye solution by photocatalytic decomposition and physical separation.


Published
26/04/2019
Issue
Vol. 14 No. 3 (2019)
Section
Papers

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